STL to PHL

St Louis to Philadelphia Flights from US$150 + Up to 20% Off

Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.

Live fares from the airlines No hidden charges Transparent cancellation policy 24×7 booking support
Cheapest fareUS$150Delta Air Lines
Fastest2h 17mgate to gate
Options today102flights on this route

Live flights for Tue, 18 Aug 2026

Review fares, stops, timings and baggage. Use Search or View all flights for the complete search result.

Showing flight options for the selected travel date.
Currency: USD
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Book eligible domestic or international flights and get 20% off the eligible base fare. T&Cs apply.

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Delta Air Lines
Delta Air Lines
DL-1524
06:00
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
6H :26 M
1 Stop
ATL · 2h 38m Atlanta (ATL), United States
13:26
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1536
07:00
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
5H :26 M
1 Stop
ATL · 1h 39m Atlanta (ATL), United States
13:26
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1536
07:00
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
6H :47 M
1 Stop
ATL · 3h 02m Atlanta (ATL), United States
14:47
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1571
09:15
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
4H :32 M
1 Stop
ATL · 0h 46m Atlanta (ATL), United States
14:47
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2868
10:33
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
5H :00 M
1 Stop
DTW · 1h 46m Detroit (DTW), United States
16:33
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-566
12:52
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
6H :06 M
1 Stop
ATL · 2h 12m Atlanta (ATL), United States
19:58
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1371
14:10
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
4H :20 M
1 Stop
DTW · 1h 00m Detroit (DTW), United States
19:30
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2700
15:39
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
7H :03 M
1 Stop
ATL · 3h 06m Atlanta (ATL), United States
23:42
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1799
17:23
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
5H :19 M
1 Stop
ATL · 1h 16m Atlanta (ATL), United States
23:42
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2822
18:25
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
4H :01 M
1 Stop
DTW · 0h 45m Detroit (DTW), United States
23:26
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$146
$150
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
American Airlines
American Airlines
AA-1308
06:00
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
2H :22 M
Non Stop
09:22
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$175
$180
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-3049
17:42
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
2H :21 M
Non Stop
21:03
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$175
$180
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-1926
06:00
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
4H :30 M
1 Stop
ORD · 0h 45m Chicago (ORD), United States
11:30
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-4570
07:25
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
6H :15 M
1 Stop
ORD · 2h 21m Chicago (ORD), United States
14:40
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-567
08:00
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
5H :40 M
1 Stop
ORD · 1h 48m Chicago (ORD), United States
14:40
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-4506
08:40
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
4H :41 M
1 Stop
IAD · 1h 11m Washington (IAD), United States
14:21
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-4601
08:50
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
4H :50 M
1 Stop
ORD · 0h 56m Chicago (ORD), United States
14:40
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 8 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-4517
10:53
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
6H :01 M
1 Stop
ORD · 2h 02m Chicago (ORD), United States
17:54
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-2654
12:59
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
7H :44 M
1 Stop
ORD · 3h 59m Chicago (ORD), United States
21:43
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
American Airlines
American Airlines
AA-4259
16:54
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
4H :29 M
1 Stop
ORD · 0h 38m Chicago (ORD), United States
22:23
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-4259
16:54
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
6H :05 M
1 Stop
ORD · 2h 16m Chicago (ORD), United States
23:59
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-541
17:30
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
6H :29 M
1 Stop
ORD · 2h 44m Chicago (ORD), United States
00:59
2026-08-19
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces

Recommended hotels in Philadelphia

Stay options near the arrival city for the same travel date.

Search hotels
Quality Hotel Philadelphia Airport
3.0Very GoodLive availability

Quality Hotel Philadelphia Airport

- 45 Industrial Hwy EssingtonPennsylvania 19029 ,

Free WiFiACBreakfast
Room availability is checked live
$66per night+ taxes if applicable
View Rooms

1 Night • 3 Star

Hilton Garden Inn Philadelphia Ft. Washington
3.0Very GoodLive availability

Hilton Garden Inn Philadelphia Ft. Washington

- 530 Pennsylvania Ave, Fort Washington, PA 19034 ,

Free WiFiACBreakfast
Room availability is checked live
$117per night+ taxes if applicable
View Rooms

1 Night • 3 Star

Comfort Inn & Suites Glen Mills - West Chester
3.0Very GoodLive availability

Comfort Inn & Suites Glen Mills - West Chester

- 1110 Baltimore Pike ,

Free WiFiACBreakfast
Room availability is checked live
$119per night+ taxes if applicable
View Rooms

1 Night • 3 Star

Home2 Suites by Hilton King of Prussia/Valley Forge, PA
3.0Very GoodLive availability

Home2 Suites by Hilton King of Prussia/Valley Forge, PA

- 550 W Dekalb Pike ,

Free WiFiACBreakfast
Room availability is checked live
$120per night+ taxes if applicable
View Rooms

1 Night • 3 Star

United Airlines
United Airlines
UA-4616
18:54
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
5H :05 M
1 Stop
ORD · 1h 15m Chicago (ORD), United States
00:59
2026-08-19
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$185
$190
Non Refundable 8 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1571
09:15
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
5H :56 M
1 Stop
ATL · 2h 07m Atlanta (ATL), United States
16:11
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$196
$201
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1571
09:15
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
7H :19 M
1 Stop
ATL · 3h 27m Atlanta (ATL), United States
17:34
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$196
$201
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1400
11:00
2026-08-18
St Louis (STL)United StatesLambert-St Louis Intl
5H :34 M
1 Stop
ATL · 1h 43m Atlanta (ATL), United States
17:34
2026-08-18
PHILADELPHIA (PHL)United StatesPhiladelphia International
FLYX20 Applied
$196
$201
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
No flights match the selected filters. Clear filters or open full search.

Fare highlights

Selected flight highlights for 18 Aug 2026.

Open full search
Lowest fare $150 Delta Air Lines 06:00
Earliest departure $150 Delta Air Lines 06:00
Shortest duration $274 American Airlines 11:22
Night 00:00-05:59 No option Open full search for more
Morning 06:00-11:59 $150 Delta Air Lines at 06:00
Afternoon 12:00-17:59 $150 Delta Air Lines at 12:52
Evening 18:00-23:59 $150 Delta Air Lines at 18:25

St Louis to Philadelphia route details

St Louis (STL)

Lambert-St Louis Intl

United States

GMT -6

Latitude: 38.748697

Longitude: -90.370003

Philadelphia (PHL)

Philadelphia International

United States

GMT -5

Latitude: 39.87189865112305

Longitude: -75.24109649658203

Distance: St Louis (STL), United States to Philadelphia (PHL), United States - 1,306.01 km
Flights shown for 18 Aug 2026. View all flights opens the complete search result.

St Louis to Philadelphia flight booking guide

Quick answers to the most common questions about flying St Louis to Philadelphia.

Are direct St Louis to Philadelphia flights available?

Yes. The current route snapshot includes 3 non-stop options. Availability can change by travel date, so recheck before payment.

Best time or month to book

There is no permanently cheapest month because airline inventory changes continuously. As a practical starting point, compare nearby dates and begin checking international trips 6–12 weeks before departure; peak holidays may need earlier booking.

Cheapest days for this route

Among the dates currently shown, Tuesday has the lowest displayed fare at $150. This is a live snapshot, not a guaranteed weekly rule.

Baggage rules

Allowance is fare-specific, not just airline-specific. Current cards show examples such as 0 Pieces check-in baggage. Open the fare choices and verify cabin/check-in baggage before continuing.

Cancellation and refund explanation

Refundable and non-refundable labels are shown on each card. Exact airline cancellation charges, no-show rules and refund timelines are verified for the selected fare before booking; promotional discounts and applicable charges are adjusted from any refund.

Secure booking support

FlyX rechecks the live fare before payment, shows the payable amount and provides 24×7 booking support. Payment, refund, cancellation and help links are available in the footer.

Airlines flying from St Louis to Philadelphia

Compare fares, stops, baggage and refundability across the airlines flying this route.

American Airlines St Louis to Philadelphia flights

from $18045 flights

American Airlines cheap flights St Louis to Philadelphia

Fares start from $180 on this route.

St Louis to Philadelphia direct American Airlines flights

3 non-stop flights currently available.

St Louis to Philadelphia American Airlines flight schedule

45 departures — compare timings in the list above.

United Airlines St Louis to Philadelphia flights

from $19040 flights

United Airlines cheap flights St Louis to Philadelphia

Fares start from $190 on this route.

St Louis to Philadelphia United Airlines flight schedule

40 departures — compare timings in the list above.

Delta Air Lines St Louis to Philadelphia flights

from $15017 flights

Delta Air Lines cheap flights St Louis to Philadelphia

Fares start from $150 on this route.

St Louis to Philadelphia Delta Air Lines flight schedule

17 departures — compare timings in the list above.

St Louis to Philadelphia flight details

Cheapest fareUS$150 · Tue, 18 Aug
Fastest flight duration2h 17m · American Airlines
First departure of the day06:00 · Delta Air Lines
Last departure of the day20:07 · American Airlines
Flights currently available102
Direct / non-stop options3
Popular airlines on this routeAmerican Airlines, United Airlines, Delta Air Lines
Airport codesSt Louis–STL, Philadelphia–PHL

Fares and timings are indicative — the exact price is confirmed with the airline when you search.

St Louis to Philadelphia flight schedule, timing and fares

St Louis to Philadelphia flight schedule and timing

Around 102 flights operate on this route, including 3 non-stop options. Departures run through the day — the first flight leaves around 06:00 and the last around 20:07. The fastest flight takes about 2h 17m.

Morning vs evening St Louis–Philadelphia fares

Lowest fare by departure window: Morning from $150, Afternoon from $150, Evening from $150. Early-morning and late-night flights are often cheaper than peak daytime slots.

What is today’s lowest airfare from St Louis to Philadelphia?

The lowest fare we are currently showing is US$150, on a Tuesday departure. Airfares change through the day, so search your dates for the exact price.

Should I book one-way or round-trip for St Louis to Philadelphia?

Domestic fares are usually priced per leg, so two one-ways often cost about the same as a round-trip and keep your return date flexible. Round-trip is worth choosing when you want a single PNR for both legs, and eligible coupons like FLYX20 apply either way.

Which airlines should I consider for St Louis to Philadelphia?

American Airlines (45 flights, from $180), United Airlines (40 flights, from $190), Delta Air Lines (17 flights, from $150). Compare fare type, baggage and refundability — the cheapest airline is not always the best value for your dates.

Web check-in for your St Louis to Philadelphia flight

Most airlines open web check-in 24–48 hours before departure on their own website or app using your PNR. Checking in early lets you pick better seats free of charge on many fares; FlyX also links every booking’s airline check-in page from Web Check-in.

How to book a St Louis to Philadelphia flight on FlyX

  1. 1
    Enter your travel details

    Choose one-way or round-trip, pick your dates and travellers in the search form above.

  2. 2
    Compare live results

    Sort or filter the St Louis–Philadelphia results by price, departure time, stops and airline.

  3. 3
    Open the fare choices

    Check baggage allowance and refundability for each fare type before continuing.

  4. 4
    Review the final price

    FlyX rechecks the live fare with the airline; any eligible coupon is applied automatically.

  5. 5
    Pay securely

    UPI, cards, net banking and wallets supported; your e-ticket is emailed within minutes.

Why book your St Louis to Philadelphia flight with FlyX?

If you are looking for St Louis to Philadelphia flight tickets at the best possible fare, FlyX keeps the process simple and transparent. Enter your dates and travellers, compare live fares across every major airline on this route, and filter by price, departure time, stops or airline to find the flight that actually fits your plan. Every fare you see is rechecked live with the airline before payment, so the price you approve is the price you pay — no hidden charges added at checkout.

And that is not all — eligible discounts like FLYX20 are applied automatically on the review page, payments run over 256-bit SSL with UPI, cards, net banking and wallets, and our 24x7 support team backs every booking as an IATA-accredited travel company. Refund and cancellation rules are shown clearly for each fare before you pay, and your e-ticket lands in your inbox within minutes. So why wait? Book your St Louis to Philadelphia flight on FlyX and take off with genuine savings today.

St Louis to Philadelphia flight offers & coupon codes

Coupon codeOfferMax saving
FLYX20Up to 20% Off on Flights₹1,500

Your discount is applied automatically on the review page before you pay. View full terms.

Frequently asked questions - St Louis to Philadelphia flights

Is it worth booking St Louis to Philadelphia flights in advance?

Yes, booking flights in advance helps you secure cheap flight tickets. Comparing air ticket prices 3–4 weeks early gives you better visibility of airline timings, baggage policies, and fare rules before high-demand periods push prices up.

How far is St Louis from Philadelphia by air?

The approximate direct air distance between St Louis (STL) and Philadelphia (PHL) is 1,306.01 km. The actual flight duration and route path vary depending on airline schedules and wind conditions.

Are there non-stop flights from STL to PHL?

Non-stop flight availability depends on the airline schedule and departure date. You can filter the live search results by stops to view direct flights, one-stop connections, and transit flights instantly.

Why does the price change after clicking Book Now?

Airline seat inventory and airfares change dynamically in real-time. Selecting 'Book Now' runs a live fare verification check to ensure you get the most accurate price before final booking confirmation.

Can I compare nearby dates?

Yes, you can easily compare flights for nearby dates. Select any date on the date calendar strip to refresh the fares, compare air ticket pricing, and choose the most budget-friendly travel day.

St Louis to Philadelphia - what to expect when booking

The STL to PHL cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.

Approx route distance: 1,306.01 km.

Before you book

Compare nearby dates

The date strip opens the complete search result for the route and selected date.

Use filters

Shortlist by price, stops, departure time and refundable fare preference.

Check fare choices

Continue to Booking opens the verified fare choices, including baggage and refundability, before review.

More flights from St Louis (STL)23 routes
St Louis → Atlanta
STL → ATL
St Louis → Boston
STL → BOS
St Louis → Burlington
STL → BRL
St Louis → Cancun
STL → CUN
St Louis → Cape Girardeau
STL → CGI
St Louis → Charlotte
STL → CLT
St Louis → Chicago
STL → MDW
St Louis → Covington Ky
STL → CVG
St Louis → Cleveland
STL → CLE
St Louis → Columbus
STL → CMH
St Louis → Dallas
STL → DAL
St Louis → Decatur
STL → DEC
St Louis → Denver
STL → DEN
St Louis → Detroit Mi
STL → DTW
St Louis → Fort Lauderdale
STL → FLL
St Louis → Fort Leonard Wood
STL → TBN
St Louis → Fort Myers
STL → RSW
St Louis → Dallas
STL → DFW
St Louis → Grand Rapids
STL → GRR
St Louis → Houston
STL → IAH
St Louis → Houston
STL → HOU
St Louis → Jonesboro
STL → JBR
St Louis → Kansas City
STL → MCI
More flights from Philadelphia (PHL)23 routes
Philadelphia → Akron/canton
PHL → CAK
Philadelphia → Albany
PHL → ALB
Philadelphia → Allentown
PHL → ABE
Philadelphia → Amsterdam
PHL → AMS
Philadelphia → Athens
PHL → ATH
Philadelphia → Atlanta
PHL → ATL
Philadelphia → Austin
PHL → AUS
Philadelphia → Bangor
PHL → BGR
Philadelphia → Barcelona
PHL → BCN
Philadelphia → Bermuda
PHL → BDA
Philadelphia → Birmingham
PHL → BHM
Philadelphia → Boston
PHL → BOS
Philadelphia → Brussels
PHL → BRU
Philadelphia → Buffalo Ny
PHL → BUF
Philadelphia → Burlington
PHL → BTV
Philadelphia → Cancun
PHL → CUN
Philadelphia → Charleston
PHL → CHS
Philadelphia → Charlotte
PHL → CLT
Philadelphia → Charlottesville
PHL → CHO
Philadelphia → Chicago
PHL → ORD
Philadelphia → Covington Ky
PHL → CVG
Philadelphia → Cleveland
PHL → CLE
Philadelphia → Columbia
PHL → CAE

Book Cheapest Flight from St Louis to Philadelphia on FlyX

Securing the best airfare from St Louis to Philadelphia is all about planning. FlyX's real-time fare tracking system allows you to check flight options and lock in the lowest ticket prices before they rise:

  • Book at least 3-4 weeks in advance to secure the most competitive St Louis to Philadelphia airfares.
  • Consider traveling mid-week (Tuesdays or Wednesdays) to bypass weekend pricing surges.
  • Early morning or late-night departure flights consistently offer lower fares than afternoon slots.
  • Use our live calendar view above to easily spot fare changes on nearby dates.

Find the Lowest airfare from St Louis to Philadelphia

Cheapest Fare Fare Date Airline Departure
Lowest Airfare Today $150 18/08/2026 Delta Air Lines 06:00
Cheapest Airfare Within 30 Days $147 29/08/2026 Delta Air Lines 06:00
Cheapest Airfare Within 90 Days $142 28/10/2026 Delta Air Lines 06:00

Book St Louis to Philadelphia Flight Tickets on FlyX

Planning to fly from St Louis to Philadelphia? FlyX lets you compare flight rates, airline timings, layovers, and baggage allowances all in one simple list. From quick non-stop routes to flexible connecting options, finding and booking cheap air tickets has never been easier.

St Louis to Philadelphia Flight Distance, Duration and Time

The aerial distance between St Louis and Philadelphia is approximately 1,306 KM. The flight duration ranges from 2H :17 M up to 27H :55 M depending on whether you book a non-stop flight or a connecting schedule with layovers.

St Louis to Philadelphia Flight Schedule and Timing

Around 102 flights operate on this route, providing plenty of choices for your travel window. The earliest morning flight departs from St Louis at 06:00, while the last night flight leaves at 20:07. Flights depart from Lambert-St Louis Intl and land at Philadelphia International.

Flight Route Details & Analysis

Flight Details Information
Route St Louis to Philadelphia
Aerial Distance 1,306 KM
Flight Duration 2H :17 M - 27H :55 M
Airport Codes St Louis - STL, Philadelphia - PHL
Total Flights Available 102 flights (3 direct)
First Flight Departure Departs at 06:00
Last Flight Departure Departs at 20:07
Early Morning Flights (12 AM - 8 AM) 20 direct/indirect flights
Morning Flights (8 AM - 12 PM) 30 direct/indirect flights
Afternoon Flights (12 PM - 4 PM) 16 direct/indirect flights
Evening Flights (4 PM - 8 PM) 26 direct/indirect flights
Night Flights (8 PM - 12 AM) 10 direct/indirect flights

Airport Information & Terminals

STL: St. Louis airport. St. Louis airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.

PHL: Philadelphia airport. Philadelphia airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.