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SEA to PHL

Seattle to Philadelphia Flights

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.

Fare checked before payment All fees shown upfront Transparent cancellation policy 24×7 booking support
Lowest fare₹24,235Delta Air Lines
Fastest5h 12mgate to gate
Options found117flights on this route
Find your flight SEA PHL

Available Flights & Fares

Compare fares, timings and baggage. Pick the flight that suits your trip.

Prices in INR
117 flight options

Fares are checked again before payment.

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Delta Air Lines
Delta Air Lines
DL-1114
21:30
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
5H :14 M
Non Stop
05:44
2026-10-31
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1128
05:30
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
9H :09 M
1 Stop
SLC · 2h 48m Salt Lake City (SLC), United States
17:39
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-943
06:00
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
9H :21 M
1 Stop
MSP · 3h 18m Minneapolis (MSP), United States
18:21
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2858
07:15
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
7H :24 M
1 Stop
SLC · 0h 51m Salt Lake City (SLC), United States
17:39
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-567
22:35
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
9H :31 M
1 Stop
ATL · 2h 58m Atlanta (ATL), United States
11:06
2026-10-31
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-810
23:10
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
9H :37 M
1 Stop
DTW · 3h 42m Detroit (DTW), United States
11:47
2026-10-31
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-652
23:59
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
8H :07 M
1 Stop
ATL · 1h 33m Atlanta (ATL), United States
11:06
2026-10-31
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-652
23:59
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
9H :54 M
1 Stop
ATL · 3h 22m Atlanta (ATL), United States
12:53
2026-10-31
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-725
15:49
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
20H :57 M
1 Stop
DEN · 14h 40m Denver (DEN), United States
15:46
2026-10-31
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1218
19:04
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
17H :42 M
1 Stop
DEN · 11h 25m Denver (DEN), United States
15:46
2026-10-31
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-986
08:24
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
5H :18 M
Non Stop
16:42
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-2870
12:49
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
5H :20 M
Non Stop
21:09
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-2886
22:48
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
5H :12 M
Non Stop
07:00
2026-10-31
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-2604
00:25
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
9H :33 M
1 Stop
DFW · 2h 20m Dallas (DFW), United States
12:58
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-2748
05:00
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
8H :33 M
1 Stop
DFW · 1h 15m Dallas (DFW), United States
16:33
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 6 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-381
06:00
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
7H :39 M
1 Stop
CLT · 0h 49m Charlotte (CLT), United States
16:39
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-1872
06:12
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
7H :21 M
1 Stop
ORD · 0h 56m Chicago (ORD), United States
16:33
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-1872
06:12
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
9H :43 M
1 Stop
ORD · 3h 11m Chicago (ORD), United States
18:55
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-2618
07:00
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
7H :47 M
1 Stop
ORD · 1h 25m Chicago (ORD), United States
17:47
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-6219
07:10
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
10H :28 M
1 Stop
LAX · 2h 14m Los Angeles (LAX), United States
20:38
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-1505
08:30
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
10H :01 M
1 Stop
DEN · 3h 46m Denver (DEN), United States
21:31
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1372
09:05
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
10H :44 M
1 Stop
SFO · 3h 06m San Francisco (SFO), United States
22:49
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
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
AA
American Airlines
AA-707
10:26
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
10H :59 M
1 Stop
DFW · 3h 33m Dallas (DFW), United States
00:25
2026-10-31
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-3234
10:31
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
9H :21 M
1 Stop
ORD · 2h 42m Chicago (ORD), United States
22:52
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-737
10:40
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
9H :09 M
1 Stop
SFO · 1h 31m San Francisco (SFO), United States
22:49
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-747
10:50
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
7H :48 M
1 Stop
ORD · 1h 24m Chicago (ORD), United States
21:38
2026-10-30
PHILADELPHIA (PHL)Philadelphia International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
No flights match the selected filters. Clear filters or open full search.

Airfare Highlights

From flights departing on Fri, 30 Oct 2026.

Lowest fare ₹24,235 Delta Air Lines 21:30
Earliest departure ₹31,246 American Airlines 00:25
Shortest duration ₹30,497 American Airlines 22:48
Night 00:00-05:59 ₹24,984 Delta Air Lines at 05:30
Morning 06:00-11:59 ₹24,984 Delta Air Lines at 06:00
Afternoon 12:00-17:59 ₹29,862 United Airlines at 15:49
Evening 18:00-23:59 ₹24,235 Delta Air Lines at 21:30

Departure & Arrival Airport Details

Seattle (SEA)

Seattle/tacoma International

United States

GMT -8

Latitude: 47.449001

Longitude: -122.308998

Philadelphia (PHL)

Philadelphia International

United States

GMT -5

Latitude: 39.87189865112305

Longitude: -75.24109649658203

Distance: Seattle (SEA), United States to Philadelphia (PHL), United States - 3,817.65 km
Flights shown for 30 Oct 2026. View all flights opens the complete search result.
Route forecast

Weather in Seattle and Philadelphia

Live forecast for both cities, 12 Oct to 15 Oct.

Departure city

Seattle

Thu, 15 Oct
17°CClear skyLow 7°
79% humidity 4 km/h wind
  • Mon13° / 8°
  • Tue13° / 7°
  • Wed16° / 7°
Arrival city

Philadelphia

Thu, 15 Oct
16°CClear skyLow 10°
79% humidity 8 km/h wind
  • Mon22° / 18°
  • Tue24° / 18°
  • Wed23° / 18°

Forecast data from MET Norway, CC BY 4.0.

Smart travel dates

Holidays and peak dates for Philadelphia

Fares and hotel rates usually run higher around these dates. Booking earlier or moving your trip by a day or two often costs less.

Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).

  • 12OctColumbus DayMonday
  • 12OctColumbus DayMonday
  • 12OctIndigenous Peoples' DayMonday
  • 11NovVeterans DayWednesday
  • 26NovThanksgiving DayThursday
  • 25DecChristmas DayFriday

Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here, so check the exact date for your travel year.

Compare your journey

How to travel Seattle to Philadelphia

Ways to make this trip that you can book on FlyX, compared by price and journey time.

OptionFromJourney timeAvailabilityAction
Non-stop flight Fastest₹24,2355h 12m6 flights
Connecting flight₹24,984Longer, includes a stop111 options

Air distance is about 3,818 km. 4 airlines operate this route.

Road distance and coach duration are approximate estimates from the air distance, not a timetable.

Airlines flying from Seattle to Philadelphia

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

American Airlines Flights

from ₹30,49749 flights
Fares from
₹30,497
Non-stop
3 in these results
Departures
49 in the list above

Delta Air Lines Flights

from ₹24,23535 flights
Fares from
₹24,235
Non-stop
1 in these results
Departures
35 in the list above

United Airlines Flights

from ₹29,86231 flights
Fares from
₹29,862
Non-stop
None in these results
Departures
31 in the list above

Route Overview & Flight Facts

Fastest flight duration5h 12m · American Airlines
First departure of the day00:25 · American Airlines
Last departure of the day23:59 · Delta Air Lines
Flight options found117
Direct / non-stop options6
Airport codesSeattle–SEA, Philadelphia–PHL

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

Flight Schedule, Timings & Airfare Insights

Daily Flight Schedule & Travel Duration

The search for Fri, 30 Oct found 117 flight options, 6 of them non-stop. The first flight leaves around 00:25 and the last around 23:59. The fastest flight takes about 5h 12m.

Morning vs Evening Departure Fares

Lowest fare by departure window: Evening from ₹24,235, Night from ₹24,984, Morning from ₹24,984, Afternoon from ₹29,862. These observations do not predict the cheapest departure window on other dates.

Cheapest Airfare & Best Time to Book

Search your travel dates to compare current fares. Prices change with airline seat availability.

One-Way vs Round-Trip Fare Comparison

Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.

Online Web Check-In & Boarding Pass

Check the operating airline’s opening time and check-in deadline for each sector. Seat charges and availability depend on your fare. Use the airline reference and the links on Web Check-in.

How to Book Cheap Flights 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 search results

    Sort or filter the Seattle–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

    Review the refreshed supplier fare, coupon saving and selected payment-method fee before you pay.

  5. 5
    Pay securely

    UPI, cards, net banking and wallets supported; payment and ticket issuance have separate statuses. If issuance is pending, follow the booking status; the confirmed ticket is sent after issuance.

Why Book Your Flight with FlyX?

Compare the available Seattle to Philadelphia options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.

Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.

Fare checked before paymentCoupon eligibility checkedBooking status trackingBooking support

Exclusive Flight Offers & Promo Coupons

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

Check coupon eligibility and the final discount on the review page before you pay. View full terms.

Frequently Asked Questions

Is it worth booking Seattle to Philadelphia flights in advance?

There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. On the Seattle to Philadelphia dates shown on this page, the lowest fare is on a Friday at ₹24,235. This can change from week to week.

How far is Seattle from Philadelphia by air?

The direct air distance between Seattle (SEA) and Philadelphia (PHL) is about 3,818 km. Actual flight time varies with the routing the airline files and with winds on the day.

Are there non-stop flights from SEA to PHL?

Yes. 6 non-stop flights are listed on this page for Seattle to Philadelphia. Use the Stops filter to see only those.

Which airlines fly Seattle to Philadelphia?

American Airlines, Delta Air Lines and United Airlines are listed on this route for the dates shown here. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.

How long is the flight from Seattle to Philadelphia?

The quickest non-stop Seattle to Philadelphia flight on this page takes about 5h 12m. Non-stop flights here take between 5h 12m and 5h 20m. Journeys with a stop take longer, since the total includes the layover.

What is the cheapest Seattle to Philadelphia flight fare?

The lowest Seattle to Philadelphia fare on this page is ₹24,235. Fares on the same dates run up to ₹148,271, depending on airline, timing and fare type. Airline prices change often, so search your dates for the current fare.

What time do Seattle to Philadelphia flights depart?

On the dates shown here, the first departure is around 00:25 and the last around 23:59, local time at Seattle. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.

Why does the price change after clicking Book Now?

Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay. If it has moved, you see the new figure before any payment.

Before you book this route

Check the airport codes SEA–PHL, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.

Where these fares come from

The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price. Run a search to see what is available for your own dates.

Fares shown are for departures on .

Check official travel requirements

Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.

For payment, ticket issuance or a change request, see FlyX support. About FlyX.

United States travel guide for Indian travellers

Planning more than the flight? Our United States guide covers the visa process for Indian passport holders, best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.

Read the United States travel guide

What to Expect When Booking Your Flight

The SEA 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: 3,817.65 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.

Lowest Seattle to Philadelphia airfare, in 30 days and in 90 days

Cheapest FareFareDateAirlineDeparture
Lowest Airfare ₹24,235 30/10/2026 Delta Air Lines 21:30
Cheapest Airfare Within 30 Days ₹23,750 07/11/2026 Delta Air Lines 21:30
Cheapest Airfare Within 90 Days ₹23,023 06/01/2027 Delta Air Lines 21:30

Book Seattle to Philadelphia Flight Tickets on FlyX

FlyX lists each Seattle to Philadelphia flight in these results with its fare, departure time, stops, layover airport and baggage, so you can compare air tickets side by side. To find a cheap ticket, sort by price and check what baggage the fare includes. The fare is checked with the airline again before you pay.

Seattle to Philadelphia Flight Distance, Duration and Time

The aerial distance between Seattle and Philadelphia is about 3,818 KM. In these results, journey times range from 5h 12m to 23h 21m. Flights with a layover take longer because the total includes the connection time.

Seattle to Philadelphia Flight Schedule and Timing

The search for these dates returned 117 flight options, 6 of them non-stop. The first departure from Seattle is at 00:25 and the last is at 23:59. Flights leave from Seattle/tacoma International and land at Philadelphia International.

Flight Route Details & Analysis

Flight DetailsInformation
RouteSeattle to Philadelphia
Aerial Distance3,818 KM
Flight Duration5h 12m - 23h 21m
Airport CodesSeattle - SEA, Philadelphia - PHL
Total Flights Available117 flights6 direct111 with layovers
First Flight DepartureDeparts at 00:25
Last Flight DepartureDeparts at 23:59
Early Morning Flights (12 AM - 8 AM)33 flights0 direct33 with layovers
Morning Flights (8 AM - 12 PM)23 flights2 direct21 with layovers
Afternoon Flights (12 PM - 4 PM)10 flights1 direct9 with layovers
Evening Flights (4 PM - 8 PM)13 flights0 direct13 with layovers
Night Flights (8 PM - 12 AM)38 flights3 direct35 with layovers

Airport Information & Terminals

SEA: Seattle-Tacoma International Airport. Sea-Tac connects to downtown by light rail, while cabs are useful for Bellevue, Redmond or late-night arrivals. Rain and freeway traffic should be part of the plan.

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.

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