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
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • any
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
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  • July 2019
  • August 2019
  • price
  • month of departure
  • month of return
$116
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$117
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$117
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$117
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$117
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$117
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$117
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$128
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$128
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$128
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$128
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$128
outward: Sep 28, 2018
4:35p STL » 7:04p DEN
Frontier Airlines direct (2h29m)
inbound: Oct 2, 2018
8:05p DEN » 10:13p STL
Frontier Airlines direct (2h08m)
$128
outward: Nov 2, 2018
2:50p STL » 5:19p DEN
Frontier Airlines direct (2h29m)
inbound: Nov 5, 2018
9:11p DEN » 11:08p STL
Frontier Airlines direct (1h57m)
$202
outward: Nov 16, 2018
4:39p STL » 7:05p DEN
Frontier Airlines direct (2h26m)
inbound: Nov 18, 2018
2:30p DEN » 4:32p STL
Frontier Airlines direct (2h02m)
$203
outward: Oct 4, 2018
4:35p STL » 7:04p DEN
Frontier Airlines direct (2h29m)
inbound: Oct 7, 2018
8:05p DEN » 10:13p STL
Frontier Airlines direct (2h08m)
$231
outward: Oct 5, 2018
12:53p STL » 3:13p DEN
United Airlines direct (2h20m)
inbound: Oct 7, 2018
8:05p DEN » 10:13p STL
Frontier Airlines direct (2h08m)
$244
outward: Oct 5, 2018
12:53p STL » 3:13p DEN
United Airlines direct (2h20m)
inbound: Oct 9, 2018
6:11a DEN » 12:28p STL
Frontier Airlines 1 stop (6h17m)
Return
Departure
Choose when you'd like to depart to Denver (USA):
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Airlines operating flights from St Louis to Denver

  • any
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • all
  • Frontier Airlines
  • United Airlines
Frontier Airlines
outbound: Sep 30, 2018
Frontier Airlines direct
return: Oct 7, 2018
Frontier Airlines direct
United Airlines
outbound: Nov 16, 2018
United Airlines direct
return: Nov 18, 2018
Frontier Airlines direct

Travel tips for flights St Louis - Denver

Average flight duration: 2h17m (direct flight)

  • Arrival city:
  • Denver, USA
  • Airport(s):
  • Centennial Airport (APA)
  • Rocky Mountain Metropolitan Airport (BJC)
  • Denver International Airport (DEN)
  • Local time:
  • Sep 21, 2018 11:16 PM, GMT-6
  • Weather:
  • min. 57ºF, max. 81ºF
  • 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:
  • Sep 22, 2018 12:16 AM, GMT-5
  • Weather:
  • min. 80ºF, max. 86ºF