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Cheap flights from Seattle to Denver from US$56
United Airlines, Alaska Airlines, Southwest Airlines and 2 more airlines fly nonstop from Seattle to Denver, about 111 flights a week. The flight takes around 2h 37m, and the cheapest one-way fare we found recently is US$56 on 14 Nov.
Direct flights available ~111 flights a week 2h 37m Cheapest in November Prices checked 13 days ago
Seattle to Denver at a glance
Cheapest one-wayUS$56Frontier Airlines · nonstop · Sat 14 NovCheapest returnUS$172Thu 3 Dec – Fri 4 DecFastest flight2h 37mUnited Airlines · nonstop
Nonstop flights111/wkUnited Airlines, Alaska Airlines, Southwest Airlines
Airlines flying nonstop from Seattle to Denver
5 airlines on this route, about 111 flights a week in total (observed over the last 4 weeks).
Cheapest dates from Seattle to Denver
The lowest one-way fares found recently, cheapest first. Prices change; click through for the live fare.
Good to know
- Distance
- 1,645 km1,022 miles
- Flight time
- 2h 37mfastest found
- Time difference
- +1hDenver vs Seattle
- Currency in Denver
- USD
- Airports
- SEA, BFI → DEN
Flights from Seattle to Denver: questions answered
How much is a flight from Seattle to Denver?
The cheapest one-way fare we found recently is US$56, nonstop, departing in November. Return trips start from US$172. Prices change constantly, so search your dates for the live fare.
Are there direct flights from Seattle to Denver?
Yes. United Airlines, Alaska Airlines, Southwest Airlines, Delta Air Lines and Frontier Airlines fly this route nonstop, with about 111 flights a week in each direction.
How long is the flight from Seattle to Denver?
A nonstop flight covers 1,645 km and takes around 2h 37m.
Which airlines fly from Seattle to Denver?
United Airlines, Alaska Airlines, Southwest Airlines, Delta Air Lines and Frontier Airlines operate nonstop flights on this route.
Which airports serve Seattle and Denver?
Seattle: Seattle–Tacoma International Airport (SEA) and King County International Airport - Boeing Field (BFI). Denver: Denver International Airport (DEN).
What is the time difference between Seattle and Denver?
Denver is 1 hour ahead of Seattle.





