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

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$228
Frontier Airlines outward: Jun 13, 2023
6:59a SEA » 7:49p DEN
Frontier Airlines 1 stop (12h50m)
Frontier Airlines inbound: Jun 15, 2023
6:26a DEN » 6:03a SEA
Frontier Airlines 1 stop (23h37m)
Return
Departure
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:

Airlines operating flights from Seattle to Denver

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  • June 2023
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  • Alaska Airlines
  • Frontier Airlines
Frontier Airlines
outbound: Jun 12, 2023
Frontier Airlines 1 stop
return: Jun 14, 2023
Frontier Airlines 1 stop
Alaska Airlines
outbound: Jun 12, 2023
Alaska Airlines direct
return: Jun 14, 2023
Alaska Airlines direct

Travel tips for flights Seattle - Denver

Average flight duration: 18h13m (flight with stopovers)

  • Arrival city:
  • Denver, USA
  • Airport(s):
  • Centennial Airport (APA)
  • Rocky Mountain Metropolitan Airport (BJC)
  • Denver International Airport (DEN)
  • Local time:
  • Jun 5, 2023 10:55 AM, GMT-6
  • Weather:
  • min. 50ºF, max. 76ºF
  • Departure city:
  • Seattle, USA
  • Airport(s):
  • Kenmore Air Harbor Seaplane Base (LKE)
  • Seattle–Tacoma International Airport (SEA)
  • Local time:
  • Jun 5, 2023 9:55 AM, GMT-7
  • Weather:
  • min. 42ºF, max. 75ºF