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Cheap flights from Denver to St Louis

33 nonstop flights a week, 2 of them today. Operated by 3 airlines, about 2h in the air, 795 mi (1,279 km). Tickets from $119, nonstop from $146.

Flights from Denver to St Louis

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Filters

Best fares from Denver to St Louis

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $119 24 November 2026, with a connection Cheapest nonstop $146 24 November 2026, United Airlines Cheapest in the next 7 days $151 14 November, Sat Cheapest weekend departure $151 Sat, 14 November 2026 Cheapest month November 2026 tickets from $119

Denver to St Louis at a glance

flight time, from 1h 55m to 10h 15m
2h
straight-line distance
795 mi (1,279 km)
flights a week
33
flights today
2
first and last departure
06:10 - 11:10
lowest price, with a connection, 24 November
$119
lowest nonstop price
$146
airlines
3

Denver to St Louis flight schedule

33 flights a week, 2 today, 60 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
WN 1839
Southwest Airlines
06:10 Denver International
09:10 Lambert-St. Louis International, terminal 2
2h
Sat
WN 1839
Southwest Airlines
06:30 Denver International
09:35 Lambert-St. Louis International, terminal 2
2h 5m
Mon, Tue, Wed, Thu, Fri, Sun
Boeing 737-800
WN 1839
Southwest Airlines
06:45 Denver International
09:50 Lambert-St. Louis International, terminal 2
2h 5m
Sat
Boeing 737
WN 459
Southwest Airlines
07:10 Denver International
12:20 Lambert-St. Louis International, terminal 2
4h 10m
Mon, Fri, Sun
Boeing 737
F9 3302
Frontier Airlines
07:37 Denver International
10:45 Lambert-St. Louis International, terminal 1
2h 8m
Thu
Airbus A320
F9 3302
Frontier Airlines
07:55 Denver International
11:03 Lambert-St. Louis International, terminal 1
2h 8m
Mon, Fri, Sat
Airbus A320
WN 1840
Southwest Airlines
08:10 Denver International
11:10 Lambert-St. Louis International, terminal 2
2h
Mon, Tue, Wed, Thu, Fri, Sun
Boeing 737
UA 652
United Airlines
09:35 Denver International
12:38 Lambert-St. Louis International, terminal 1
2h 3m
Daily
Boeing 737-800
WN 1807
Southwest Airlines
10:30 Denver International
13:30 Lambert-St. Louis International, terminal 2
2h
Mon, Thu, Fri, Sun
WN 719
Southwest Airlines
10:30 Denver International
13:30 Lambert-St. Louis International, terminal 2
2h
Sat
Boeing 737
WN 1807
Southwest Airlines
11:10 Denver International
14:10 Lambert-St. Louis International, terminal 2
2h
Sat

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 24 November.

FlightDepartsArrivesDurationDaysAircraft
WN 1839
Southwest Airlines
06:25 Denver International
09:25 Lambert-St. Louis International, terminal 2
2h
Seasonal
WN 1840
Southwest Airlines
07:55 Denver International
10:55 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 1839
Southwest Airlines
06:05 Denver International
09:05 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 1840
Southwest Airlines
09:10 Denver International
12:05 Lambert-St. Louis International, terminal 2
1h 55m
Seasonal
WN 1807
Southwest Airlines
11:15 Denver International
14:10 Lambert-St. Louis International, terminal 2
1h 55m
Seasonal
WN 1839
Southwest Airlines
06:15 Denver International
09:15 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 153
Southwest Airlines
10:00 Denver International
13:05 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
UA 652
United Airlines
09:50 Denver International
12:56 Lambert-St. Louis International, terminal 1
2h 6m
Seasonal
Airbus A319
F9 3302
Frontier Airlines
08:00 Denver International
11:06 Lambert-St. Louis International, terminal 1
2h 6m
Seasonal
Airbus A320
F9 3302
Frontier Airlines
07:49 Denver International
10:57 Lambert-St. Louis International, terminal 1
2h 8m
Seasonal
Airbus A320
F9 3302
Frontier Airlines
07:47 Denver International
10:57 Lambert-St. Louis International, terminal 1
2h 10m
Seasonal
Airbus A320
UA 5321
United Airlines
09:49 Denver International
13:08 Lambert-St. Louis International, terminal 1
2h 19m
Seasonal
Embraer 175
UA 214
United Airlines
10:57 Denver International
14:03 Lambert-St. Louis International, terminal 1
2h 6m
Seasonal
Airbus A319
WN 4393
Southwest Airlines
06:25 Denver International
09:25 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
F9 630
Frontier Airlines
07:10 Denver International
10:20 Lambert-St. Louis International, terminal 1
2h 10m
Seasonal
Airbus A320
WN 2133
Southwest Airlines
08:55 Denver International
11:55 Lambert-St. Louis International, terminal 2
2h
Seasonal
WN 4393
Southwest Airlines
06:45 Denver International
09:50 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737-800
WN 1738
Southwest Airlines
11:10 Denver International
14:10 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737-800
WN 2133
Southwest Airlines
07:55 Denver International
10:55 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 1738
Southwest Airlines
10:30 Denver International
13:30 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
UA 652
United Airlines
09:45 Denver International
12:43 Lambert-St. Louis International, terminal 1
1h 58m
Seasonal
Airbus A320
WN 1738
Southwest Airlines
10:25 Denver International
13:25 Lambert-St. Louis International, terminal 2
2h
Seasonal
WN 1989
Southwest Airlines
06:20 Denver International
09:20 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 2133
Southwest Airlines
08:05 Denver International
11:05 Lambert-St. Louis International, terminal 2
2h
Seasonal
WN 1738
Southwest Airlines
10:55 Denver International
13:55 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737-800
WN 1728
Southwest Airlines
06:25 Denver International
09:30 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737-800
WN 1729
Southwest Airlines
07:40 Denver International
10:40 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737-800
WN 3778
Southwest Airlines
10:30 Denver International
13:30 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 4519
Southwest Airlines
05:55 Denver International
09:00 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737
WN 1729
Southwest Airlines
07:45 Denver International
10:50 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737-800
WN 460
Southwest Airlines
10:45 Denver International
13:45 Lambert-St. Louis International, terminal 2
2h
Seasonal
WN 1474
Southwest Airlines
12:10 Denver International
15:10 Lambert-St. Louis International, terminal 2
2h
Seasonal
WN 3938
Southwest Airlines
06:15 Denver International
09:20 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737-800
WN 3778
Southwest Airlines
10:25 Denver International
13:25 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737-800
WN 1708
Southwest Airlines
12:05 Denver International
23:20 Lambert-St. Louis International, terminal 2
10h 15m
Seasonal
Boeing 737
WN 1728
Southwest Airlines
06:30 Denver International
09:35 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
WN 1729
Southwest Airlines
08:10 Denver International
11:15 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737-800
WN 3778
Southwest Airlines
09:50 Denver International
12:55 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
WN 2236
Southwest Airlines
06:30 Denver International
09:30 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 1727
Southwest Airlines
08:50 Denver International
11:55 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737
WN 1728
Southwest Airlines
11:15 Denver International
14:15 Lambert-St. Louis International, terminal 2
2h
Seasonal
WN 1726
Southwest Airlines
06:10 Denver International
09:10 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 1727
Southwest Airlines
07:40 Denver International
10:45 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737
WN 1728
Southwest Airlines
11:05 Denver International
14:05 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 1726
Southwest Airlines
06:20 Denver International
09:20 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 1728
Southwest Airlines
11:10 Denver International
14:10 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737-800
WN 1727
Southwest Airlines
07:45 Denver International
10:50 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737-800
WN 1728
Southwest Airlines
10:30 Denver International
13:35 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737
WN 715
Southwest Airlines
06:05 Denver International
09:15 Lambert-St. Louis International, terminal 2
2h 10m
Seasonal
Boeing 737
WN 4585
Southwest Airlines
07:20 Denver International
10:20 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 1539
Southwest Airlines
09:15 Denver International
12:15 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 715
Southwest Airlines
05:50 Denver International
08:50 Lambert-St. Louis International, terminal 2
2h
Seasonal
WN 162
Southwest Airlines
07:40 Denver International
10:40 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 715
Southwest Airlines
05:55 Denver International
09:00 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737
WN 4585
Southwest Airlines
07:05 Denver International
10:10 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
WN 1539
Southwest Airlines
10:00 Denver International
13:05 Lambert-St. Louis International, terminal 2
2h 5m
Seasonal
Boeing 737
WN 1540
Southwest Airlines
12:10 Denver International
15:10 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 715
Southwest Airlines
05:40 Denver International
08:40 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737
WN 4585
Southwest Airlines
06:55 Denver International
10:05 Lambert-St. Louis International, terminal 2
2h 10m
Seasonal
WN 1539
Southwest Airlines
08:20 Denver International
11:20 Lambert-St. Louis International, terminal 2
2h
Seasonal
Boeing 737

Days of the week are taken from the schedule for the next 14 days; schedules change by season. St Louis is 1 hour ahead of Denver. The search shows seat availability and the price for your date.

Airlines flying Denver to St Louis

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Southwest Airlines22 a week United Airlines7 a week Frontier Airlines4 a week

Airports

Where flights from Denver to St Louis depart and land

Departure from Denver

Denver International DEN

33 flights a week, 18 mi (29 km) from the city centre

About the airport

Arrival in St Louis

Lambert-St. Louis International STL

33 flights a week, terminals 1, 2, 12 mi (19 km) from the city centre

About the airport

Frequently asked questions

How long is the flight from Denver to St Louis?
A nonstop flight takes 2 hours on average, from 1h 55m to 10h 15m depending on the flight.
How far is St Louis from Denver?
795 mi (1,279 km) in a straight line between the cities.
Which airlines fly nonstop from Denver to St Louis?
Southwest Airlines (22 a week), United Airlines (7 a week) and Frontier Airlines (4 a week).
How many flights a day are there from Denver to St Louis?
2 flights today and 33 a week, about 4.7 a day on average.
When are the first and last flights from Denver to St Louis?
The first departure is at 06:10 (WN1839), the last at 11:10 (WN1807). Local time.
What is the cheapest upcoming date to fly from Denver to St Louis?
24 November 2026 (Tuesday): from $119 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Denver to St Louis?
United Airlines: nonstop tickets from $146 on 24 November by recent searches. Prices change daily, so compare the sellers in the search.
What is the time difference between Denver and St Louis?
St Louis is 1 hour ahead of Denver. Schedule times on this page are local to each airport.
Which Denver airport do flights to St Louis leave from?
Denver International (33 a week).