Search flights from Denver (DEN) to Seattle (SEA)
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Cheapest flights to Seattle
The cheapest flights available in the next 60 days – prices are updated regularly
- Wed, Oct 1$42.67One-wayEconomy1 traveler
- Tue, Sep 30$43.33One-wayEconomy1 traveler
- Tue, Oct 7$43.50One-wayEconomy1 traveler
Flying from Denver to Seattle: things to know
The most popular route is from Denver International Airport in Denver to Sea-Tac Airport in Seattle. On average this flight takes 3 hours 3 minutes one-way and costs $427 round-trip.
Most popular route | Denver International Airport (DEN) to Sea-Tac Airport (SEA) |
|---|---|
Average flight time | 3 hours 3 minutes |
Average round-trip price | $427 |
Fly from Denver to Seattle | 8 airlines |
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Airlines that fly from Denver to Seattle
Airline options may vary according to recently booked flights and your search terms
Frontier Airlines
Alaska Airlines
United Airlines
Hawaiian Airlines
Spirit Airlines
Southwest Airlines
American Airlines
Sun Country
Frequently asked questions
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