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

Find cheap airline tickets from Seattle 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
$123
outward: Jun 6, 2018
9:55a SEA » 12:44p DEN
Frontier Airlines direct (2h49m)
inbound: Jun 14, 2018
6:05a DEN » 9:02a SEA
Frontier Airlines direct (2h57m)
$123
outward: Jun 6, 2018
9:55a SEA » 12:44p DEN
Frontier Airlines direct (2h49m)
inbound: Jun 14, 2018
6:05a DEN » 9:02a SEA
Frontier Airlines direct (2h57m)
$143
outward: Jun 1, 2018
3:00p SEA » 5:40p DEN
Southwest Airlines direct (2h40m)
inbound: Jun 4, 2018
6:20a DEN » 9:10a SEA
Southwest Airlines direct (2h50m)
$161
outward: Jun 5, 2018
9:55a SEA » 12:44p DEN
Frontier Airlines direct (2h49m)
inbound: Jun 15, 2018
6:05a DEN » 9:02a SEA
Frontier Airlines direct (2h57m)
$163
outward: Jun 1, 2018
9:55a SEA » 12:44p DEN
Frontier Airlines direct (2h49m)
inbound: Jun 4, 2018
6:05a DEN » 9:02a SEA
Frontier Airlines direct (2h57m)
$163
outward: Jun 2, 2018
3:44a SEA » 6:35a DEN
Frontier Airlines direct (2h51m)
inbound: Jun 4, 2018
6:05a DEN » 9:02a SEA
Frontier Airlines direct (2h57m)
$170
outward: Jun 18, 2018
9:55a SEA » 12:44p DEN
Frontier Airlines direct (2h49m)
inbound: Jun 21, 2018
6:24a DEN » 9:15a SEA
United Airlines direct (2h51m)
$170
outward: Jun 1, 2018
3:00p SEA » 5:40p DEN
Southwest Airlines direct (2h40m)
inbound: Jun 3, 2018
9:41p COS » 12:51a SEA
Frontier Airlines direct (3h10m)
$170
outward: Jun 1, 2018
3:00p SEA » 5:40p DEN
Southwest Airlines direct (2h40m)
inbound: Jun 3, 2018
9:41p COS » 12:51a SEA
Frontier Airlines direct (3h10m)
$187
outward: Jun 2, 2018
3:44a SEA » 6:35a DEN
Frontier Airlines direct (2h51m)
inbound: Jun 4, 2018
6:05a DEN » 9:02a SEA
Frontier Airlines direct (2h57m)
$187
outward: Jun 2, 2018
2:10a SEA » 8:40a DEN
Southwest Airlines 1 stop (6h30m)
inbound: Jun 3, 2018
9:41p COS » 12:51a SEA
Frontier Airlines direct (3h10m)
$191
outward: Jun 1, 2018
3:00p SEA » 5:40p DEN
Southwest Airlines direct (2h40m)
inbound: Jun 4, 2018
6:05a DEN » 9:02a SEA
Frontier Airlines direct (2h57m)
$192
outward: Jun 1, 2018
9:55a SEA » 12:44p DEN
Frontier Airlines direct (2h49m)
inbound: Jun 4, 2018
6:05a DEN » 9:02a SEA
Frontier Airlines direct (2h57m)
$194
outward: Jul 6, 2018
1:39a SEA » 4:27a COS
Frontier Airlines direct (2h48m)
inbound: Jul 8, 2018
9:32p COS » 12:49a SEA
Frontier Airlines direct (3h17m)
$196
outward: Jul 6, 2018
1:39a SEA » 4:27a COS
Frontier Airlines direct (2h48m)
inbound: Jul 8, 2018
9:32p COS » 12:49a SEA
Frontier Airlines direct (3h17m)
$207
outward: Jun 2, 2018
6:30a SEA » 9:07a DEN
Alaska Airlines direct (2h37m)
inbound: Jun 4, 2018
6:05a DEN » 9:02a SEA
Frontier Airlines direct (2h57m)
$215
outward: Jul 21, 2018
4:00a SEA » 6:37a DEN
Frontier Airlines direct (2h37m)
inbound: Jul 24, 2018
6:07a DEN » 9:05a SEA
Frontier Airlines direct (2h58m)
$220
outward: Aug 9, 2018
4:20p SEA » 10:00p DEN
Southwest Airlines 1 stop (5h40m)
inbound: Aug 13, 2018
6:05a DEN » 8:55a SEA
Southwest Airlines direct (2h50m)
$220
outward: Aug 9, 2018
4:20p SEA » 10:00p DEN
Southwest Airlines 1 stop (5h40m)
inbound: Aug 13, 2018
6:05a DEN » 8:55a SEA
Southwest Airlines direct (2h50m)
Return
Departure
Choose when you'd like to depart to Denver (USA):
Find the cheapest Seattle Denver flight by browsing the dates below to find alternative flight prices found in the last days. To launch a flight search for Seattle - 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 Seattle 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
  • Alaska Airlines
  • Frontier Airlines
  • United Airlines
Frontier Airlines
outbound: Jun 6, 2018
Frontier Airlines direct
return: Jun 13, 2018
Frontier Airlines direct
Alaska Airlines
outbound: Jun 18, 2018
Alaska Airlines direct
return: Jun 20, 2018
Alaska Airlines direct
United Airlines
outbound: Jun 6, 2018
United Airlines direct
return: Jun 13, 2018
United Airlines direct

Travel tips for flights Seattle - Denver

Average flight duration: 2h53m (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 5:59 AM, GMT-6
  • Weather:
  • min. 54ºF, max. 75ºF
  • Departure city:
  • Seattle, USA
  • Airport(s):
  • Kenmore Air Harbor Seaplane Base (LKE)
  • Seattle–Tacoma International Airport (SEA)
  • Local time:
  • May 27, 2018 4:59 AM, GMT-7
  • Weather:
  • min. 53ºF, max. 69ºF