DEN to STL

Denver to St Louis flight ticket price

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.

DEN
Denver (DEN), United StatesDenver International
STL
St Louis (STL), United StatesLambert-St Louis Intl
Search

Live flights for Mon, 22 Jun 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
Mon, 22 JunDEN to STL$340 Tue, 23 JunDEN to STL Wed, 24 JunDEN to STL Thu, 25 JunDEN to STL Fri, 26 JunDEN to STL Sat, 27 JunDEN to STL Sun, 28 JunDEN to STL
Sort By:DepartureDurationArrivalPrice
United Airlines
United Airlines
UA-652
09:35
2026-06-22
Denver (DEN)United StatesDenver International
2H :07 M
Non Stop
12:42
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$340
total fare
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1639
13:25
2026-06-22
Denver (DEN)United StatesDenver International
2H :08 M
Non Stop
16:33
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$340
total fare
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1422
17:58
2026-06-22
Denver (DEN)United StatesDenver International
2H :12 M
Non Stop
21:10
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$340
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-214
20:45
2026-06-22
Denver (DEN)United StatesDenver International
2H :12 M
Non Stop
23:57
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$340
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-302
00:40
2026-06-22
Denver (DEN)United StatesDenver International
6H :36 M
1 Stop
ATL · 1h 54mAtlanta (ATL), United States
08:16
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-302
00:40
2026-06-22
Denver (DEN)United StatesDenver International
8H :06 M
1 Stop
ATL · 3h 23mAtlanta (ATL), United States
09:46
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1928
07:40
2026-06-22
Denver (DEN)United StatesDenver International
7H :06 M
1 Stop
ORD · 2h 57mChicago (ORD), United States
15:46
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1829
13:30
2026-06-22
Denver (DEN)United StatesDenver International
6H :12 M
1 Stop
IAH · 1h 24mHouston (IAH), United States
20:42
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 8 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-706
14:15
2026-06-22
Denver (DEN)United StatesDenver International
7H :03 M
1 Stop
ATL · 2h 13mAtlanta (ATL), United States
22:18
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-706
14:15
2026-06-22
Denver (DEN)United StatesDenver International
8H :41 M
1 Stop
ATL · 3h 50mAtlanta (ATL), United States
23:56
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
American Airlines
American Airlines
AA-420
15:11
2026-06-22
Denver (DEN)United StatesDenver International
7H :48 M
1 Stop
DFW · 3h 49mDallas (DFW), United States
23:59
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
Delta Air Lines
Delta Air Lines
DL-957
15:15
2026-06-22
Denver (DEN)United StatesDenver International
6H :03 M
1 Stop
ATL · 1h 11mAtlanta (ATL), United States
22:18
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-957
15:15
2026-06-22
Denver (DEN)United StatesDenver International
7H :41 M
1 Stop
ATL · 2h 48mAtlanta (ATL), United States
23:56
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-489
15:35
2026-06-22
Denver (DEN)United StatesDenver International
6H :10 M
1 Stop
IAH · 1h 20mHouston (IAH), United States
22:45
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1623
15:55
2026-06-22
Denver (DEN)United StatesDenver International
7H :48 M
1 Stop
SLC · 3h 13mSalt Lake City (SLC), United States
00:43
2026-06-23
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
American Airlines
American Airlines
AA-1735
15:57
2026-06-22
Denver (DEN)United StatesDenver International
6H :47 M
1 Stop
CLT · 1h 16mCharlotte (CLT), United States
23:44
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-1832
16:25
2026-06-22
Denver (DEN)United StatesDenver International
6H :34 M
1 Stop
DFW · 2h 33mDallas (DFW), United States
23:59
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 3 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-675
16:29
2026-06-22
Denver (DEN)United StatesDenver International
6H :00 M
1 Stop
ORD · 1h 49mChicago (ORD), United States
23:29
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1131
16:45
2026-06-22
Denver (DEN)United StatesDenver International
5H :44 M
1 Stop
ORD · 1h 30mChicago (ORD), United States
23:29
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
American Airlines
American Airlines
AA-1734
17:45
2026-06-22
Denver (DEN)United StatesDenver International
5H :31 M
1 Stop
ORD · 1h 25mChicago (ORD), United States
00:16
2026-06-23
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-1322
18:10
2026-06-22
Denver (DEN)United StatesDenver International
4H :49 M
1 Stop
DFW · 0h 51mDallas (DFW), United States
23:59
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-3156
23:59
2026-06-22
Denver (DEN)United StatesDenver International
7H :33 M
1 Stop
CLT · 2h 28mCharlotte (CLT), United States
08:32
2026-06-23
St Louis (STL)United StatesLambert-St Louis Intl
$350
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces

Recommended hotels in St Louis

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

Search hotels
Best Western Plus Louisa
2.0Very GoodLive availability

Best Western Plus Louisa

- 18199 US-23, Louisa, KY 41230 ,

Free WiFiACBreakfast
Room availability is checked live
$104per night+ taxes if applicable
View Rooms

1 Night • 2 Star

American Airlines
American Airlines
AA-2612
05:00
2026-06-22
Denver (DEN)United StatesDenver International
6H :49 M
1 Stop
DFW · 2h 40mDallas (DFW), United States
12:49
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$391
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-2078
06:22
2026-06-22
Denver (DEN)United StatesDenver International
5H :27 M
1 Stop
DFW · 1h 17mDallas (DFW), United States
12:49
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$391
total fare
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-2359
12:39
2026-06-22
Denver (DEN)United StatesDenver International
5H :57 M
1 Stop
DFW · 2h 04mDallas (DFW), United States
19:36
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$391
total fare
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-1758
13:57
2026-06-22
Denver (DEN)United StatesDenver International
8H :47 M
1 Stop
CLT · 3h 16mCharlotte (CLT), United States
23:44
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
$391
total fare
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
View all flights
No flights match the selected filters. Clear filters or open full search.

Fare highlights

Selected flight highlights for 22 Jun 2026.

Open full search
Lowest fare $340 United Airlines 09:35
Earliest departure $350 Delta Air Lines 00:40
Shortest duration $340 United Airlines 09:35
Night 00:00-05:59 $350 Delta Air Lines at 00:40
Morning 06:00-11:59 $340 United Airlines at 09:35
Afternoon 12:00-17:59 $340 United Airlines at 13:25
Evening 18:00-23:59 $340 United Airlines at 20:45

Denver to St Louis route details

Denver (DEN)

Denver International

United States

GMT -7

Latitude: 39.861698150635

Longitude: -104.672996521

St Louis (STL)

Lambert-St Louis Intl

United States

GMT -6

Latitude: 38.748697

Longitude: -90.370003

Distance: Denver (DEN), United States to St Louis (STL), United States - 1,235.51 km
Flights shown for 22 Jun 2026. View all flights opens the complete search result.

Denver to St Louis - what to expect when booking

The DEN to STL 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: 1,235.51 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 rows

Select expands fare choices on the card before you move to review and booking.

More flights from Denver (DEN)24 routes
Denver → Akron/canton
DEN → CAK
Denver → Albuquerque
DEN → ABQ
Denver → Amarillo
DEN → AMA
Denver → Anchorage
DEN → ANC
Denver → Aspen
DEN → ASE
Denver → Atlanta
DEN → ATL
Denver → Austin
DEN → AUS
Denver → Bakersfield
DEN → BFL
Denver → Fayetteville
DEN → XNA
Denver → Billings
DEN → BIL
Denver → Birmingham
DEN → BHM
Denver → Bismarck
DEN → BIS
Denver → Bloomington-Normal
DEN → BMI
Denver → Boise
DEN → BOI
Denver → Boston
DEN → BOS
Denver → Bozeman
DEN → BZN
Denver → Burbank
DEN → BUR
Denver → Calgary
DEN → YYC
Denver → Cancun
DEN → CUN
Denver → Casper
DEN → CPR
Denver → Cedar Rapids
DEN → CID
Denver → Charlotte
DEN → CLT
Denver → Cheyenne
DEN → CYS
Denver → Chicago
DEN → ORD
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
Frequently asked questions - Denver to St Louis flights
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.
The approximate direct air distance between Denver (DEN) and St Louis (STL) is 1,235.51 km. The actual flight duration and route path vary depending on airline schedules and wind conditions.
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.
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.
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.