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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)
Verify
10 days ago
$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)
Verify
10 days ago
$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)
Verify
26 days ago
$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)
Verify
10 days ago
$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)
Verify
10 days ago
$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)
Verify
10 days ago
$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)
Verify
12 days ago
$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)
Verify
12 days ago
$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)
Verify
12 days ago
$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)
Verify
20 days ago
$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)
Verify
4 days ago
$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)
Verify
16 days ago
$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)
Verify
19 days ago
$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)
Verify
25 days ago
$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)
Verify
24 days ago
$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)
Verify
18 days ago
$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)
Verify
4 days ago
$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)
Verify
24 days ago
$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)
Verify
23 days ago
Return
Departure
Availability of fares is not guaranteed for offers found in the last 7 days.
Choose when you'd like to depart to Denver (USA):
*Best price per person, all taxes and surcharges included; found in the last 14 days on liligo.com
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
$123 Verify
10 days ago
Alaska Airlines
outbound: Jun 18, 2018
Alaska Airlines direct
return: Jun 20, 2018
Alaska Airlines direct
$181 Verify
12 days ago
United Airlines
outbound: Jun 6, 2018
United Airlines direct
return: Jun 13, 2018
United Airlines direct
$195 Verify
10 days ago
Airline tickets Seattle - Denver found in the last 30 days.

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