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
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • any
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • price
  • month of departure
  • month of return
$108
outward: Oct 17, 2018
4:36p STL » 7:05p DEN
Frontier Airlines direct (2h29m)
inbound: Oct 24, 2018
8:05p DEN » 10:07p STL
Frontier Airlines direct (2h02m)
$111
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$111
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$115
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$115
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$116
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$116
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$127
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$128
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$128
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$152
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$152
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$161
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$162
outward: Aug 27, 2018
4:38p STL » 7:03p DEN
Frontier Airlines direct (2h25m)
inbound: Aug 30, 2018
8:03p DEN » 10:10p STL
Frontier Airlines direct (2h07m)
$165
outward: Aug 25, 2018
4:33p STL » 6:58p DEN
Frontier Airlines direct (2h25m)
inbound: Aug 28, 2018
7:58p DEN » 10:05p STL
Frontier Airlines direct (2h07m)
$166
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$166
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$179
outward: Aug 25, 2018
4:33p STL » 6:58p DEN
Frontier Airlines direct (2h25m)
inbound: Aug 28, 2018
7:58p DEN » 10:05p STL
Frontier Airlines direct (2h07m)
$181
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$181
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$181
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$182
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$187
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$188
outward: Nov 2, 2018
3:36p STL » 6:05p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
8:01p DEN » 9:59p STL
Frontier Airlines direct (1h58m)
$209
outward: Aug 24, 2018
4:33p STL » 6:58p DEN
Frontier Airlines direct (2h25m)
inbound: Aug 28, 2018
7:58p DEN » 10:05p STL
Frontier Airlines direct (2h07m)
$212
outward: Aug 1, 2018
4:30p STL » 6:51p DEN
Frontier Airlines direct (2h21m)
inbound: Aug 8, 2018
7:54p DEN » 10:01p STL
Frontier Airlines direct (2h07m)
$224
outward: Aug 2, 2018
4:30p STL » 6:51p DEN
Frontier Airlines direct (2h21m)
inbound: Aug 7, 2018
5:45a DEN » 7:40a STL
Southwest Airlines direct (1h55m)
$240
outward: Jul 21, 2018
4:30p STL » 6:51p DEN
Frontier Airlines direct (2h21m)
inbound: Jul 28, 2018
1:40p DEN » 3:40p STL
Southwest Airlines direct (2h)
$241
outward: Jul 18, 2018
4:30p STL » 6:51p DEN
Frontier Airlines direct (2h21m)
inbound: Jul 25, 2018
7:54p DEN » 10:01p STL
Frontier Airlines direct (2h07m)
$244
outward: Aug 4, 2018
12:59a STL » 6:56p DEN
Unknown Company 1 stop (17h57m)
inbound: Aug 7, 2018
2:53a DEN » 12:28p STL
Unknown Company 1 stop (9h35m)
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
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • all
  • Frontier Airlines
  • United Airlines
Frontier Airlines
outbound: Aug 1, 2018
Frontier Airlines direct
return: Aug 6, 2018
Southwest Airlines direct
United Airlines
outbound: Jul 19, 2018
United Airlines direct
return: Jul 22, 2018
United Airlines direct

Travel tips for flights St Louis - Denver

Average flight duration: 2h12m (direct flight)

  • Arrival city:
  • Denver, USA
  • Airport(s):
  • Centennial Airport (APA)
  • Rocky Mountain Metropolitan Airport (BJC)
  • Denver International Airport (DEN)
  • Local time:
  • Jul 17, 2018 3:09 PM, GMT-6
  • Weather:
  • min. 65ºF, max. 87ºF
  • 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:
  • Jul 17, 2018 4:09 PM, GMT-5
  • Weather:
  • min. 76ºF, max. 81ºF