Take off on cheap flights from St Louis to Denver, your adventure starts now!

Find cheap airline tickets from St Louis to Denver by date

  • any
  • May 2018
  • June 2018
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • any
  • May 2018
  • June 2018
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • price
  • month of departure
  • month of return
$157
outward: Nov 2, 2018
5:50p STL » 8:12p DEN
Frontier Airlines direct (2h22m)
inbound: Nov 5, 2018
10:21p DEN » 12:16a STL
Frontier Airlines direct (1h55m)
$195
outward: Jun 24, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$195
outward: Jun 28, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$207
outward: May 30, 2018
12:55a STL » 12:20p DEN
Frontier Airlines 1 stop (11h25m)
inbound: Jun 5, 2018
7:59p DEN » 10:06p STL
Frontier Airlines direct (2h07m)
$217
outward: Jun 28, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 2, 2018
7:54p DEN » 10:01p STL
Frontier Airlines direct (2h07m)
$220
outward: Jun 23, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$228
outward: Jun 24, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$230
outward: Jun 13, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jun 19, 2018
2:46a DEN » 12:27p STL
Frontier Airlines 1 stop (9h41m)
$231
outward: Jun 24, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 3, 2018
3:55a DEN » 6:00a STL
United Airlines direct (2h05m)
$232
outward: Jun 28, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$232
outward: Jun 24, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$232
outward: Jun 24, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$232
outward: Jun 28, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$237
outward: Jun 13, 2018
5:50p STL » 10:15p DEN
Southwest Airlines 1 stop (4h25m)
inbound: Jun 19, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$239
outward: Jun 13, 2018
5:50p STL » 10:15p DEN
Southwest Airlines 1 stop (4h25m)
inbound: Jun 19, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$252
outward: Jun 24, 2018
12:30p STL » 2:50p DEN
United Airlines direct (2h20m)
inbound: Jul 3, 2018
3:55a DEN » 6:00a STL
United Airlines direct (2h05m)
$252
outward: Jun 24, 2018
12:30p STL » 2:50p DEN
United Airlines direct (2h20m)
inbound: Jul 3, 2018
3:55a DEN » 6:00a STL
United Airlines direct (2h05m)
$254
outward: Jun 28, 2018
12:30p STL » 2:45p DEN
Southwest Airlines direct (2h15m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$279
outward: Jun 24, 2018
1:15p STL » 3:30p DEN
Southwest Airlines direct (2h15m)
inbound: Jul 3, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$294
outward: Jul 9, 2018
4:55a STL » 7:10a DEN
Southwest Airlines direct (2h15m)
inbound: Jul 15, 2018
2:20p DEN » 4:20p STL
Southwest Airlines direct (2h)
$296
outward: Jul 9, 2018
4:55a STL » 7:10a DEN
Southwest Airlines direct (2h15m)
inbound: Jul 15, 2018
2:20p DEN » 4:20p STL
Southwest Airlines direct (2h)
$301
outward: Jun 23, 2018
4:30p STL » 6:59p DEN
Frontier Airlines direct (2h29m)
inbound: Jul 23, 2018
7:54p DEN » 10:01p STL
Frontier Airlines direct (2h07m)
$799
outward: Jun 20, 2018
12:30p STL » 2:50p DEN
United Airlines direct (2h20m)
inbound: Jun 25, 2018
8:45p DEN » 10:42p STL
United Airlines direct (1h57m)
$1,539
outward: Jun 20, 2018
12:15p STL » 7:44p DEN
United Airlines 1 stop (7h29m)
inbound: Jun 25, 2018
11:48p DEN » 5:28a STL
United Airlines 1 stop (5h40m)
Return
Departure
Choose when you'd like to depart to Denver (USA):
Find the cheapest St Louis Denver flight by browsing the dates below to find alternative flight prices found in the last days. To launch a flight search for St Louis - Denver with these new dates, click on an offer. Want to depart from another city? Choose: Las Vegas - Denver New York - Denver London - Denver Miami - Denver Chicago - Denver San Francisco - Denver See more routes

Airlines operating flights from St Louis to Denver

  • any
  • May 2018
  • June 2018
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • all
  • Frontier Airlines
  • United Airlines
Frontier Airlines
outbound: May 29, 2018
Frontier Airlines 1 stop
return: Jun 5, 2018
Frontier Airlines direct
United Airlines
outbound: May 29, 2018
United Airlines direct
return: Jun 5, 2018
Frontier Airlines direct

Travel tips for flights St Louis - Denver

Average flight duration: 2h14m (direct flight)

  • Arrival city:
  • Denver, USA
  • Airport(s):
  • Centennial Airport (APA)
  • Rocky Mountain Metropolitan Airport (BJC)
  • Denver International Airport (DEN)
  • Local time:
  • May 27, 2018 5:44 AM, GMT-6
  • Weather:
  • min. 54ºF, max. 75ºF
  • Departure city:
  • St Louis, USA
  • Airport(s):
  • St. Louis Downtown Airport (CPS)
  • Lambert–St. Louis International Airport (STL)
  • MidAmerica St. Louis Airport (BLV)
  • Spirit of St. Louis Airport (SUS)
  • Local time:
  • May 27, 2018 6:44 AM, GMT-5
  • Weather:
  • min. 72ºF, max. 81ºF