Cheap flights from Denver, CO to Seattle, WA
Flights starting at £47. Choose between Linear Air, United Airlines, or Frontier Airlines to find the best price.
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Tips to know when travelling to Seattle
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Weekly direct flights
| Mondays | Tuesdays | Wednesdays | Thursdays | Fridays | Saturdays | Sundays | |
|---|---|---|---|---|---|---|---|
| Direct flights | 14 | 14 | 15 | 8 | 11 | 14 | 15 |
Alaska Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.
Delta Air Lines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.
Frontier Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.
United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.
Check-in for a flight from Denver to Seattle
| Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
|---|---|---|---|---|
| Linear Air | O2 | Yes | No | |
| United Airlines | UAL | UA | Yes | No |
| Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
| Alaska Airlines | ASA | AS | Yes | Opens 24 days before flight Closes 1 hours before flight |
| Delta Air Lines | DAL | DL | Yes | Opens 24 days before flight Closes 1 hours before flight |
Seattle travel tips
1) How to get to the city center from Seattle-Tacoma International Airport? | Link Light Rail is a great option how to get from the Seattle-Tacoma International Airport to the city center. The way will take approximately 30 minutes. The train comes every 15 minutes or even more often. We recommend using an ORCA card to get around the city for less money. Give it a try! |
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2) Seattle’s Museum of Flight is waiting for all aviation lovers | Seattle’s Museum of Flight can boast about a huge collection of planes, flight-related exhibits, and historical objects. There is a gallery specialised in space travel history as well as a section with flight innovations. The museum is open from Thursday to Monday. Aviation lovers, you are welcome! |
3) To visit Seattle in autumn is an excellent idea | No doubt, Seattle is excellent all year round. However, autumn is special in this city. This season fills Seattle with festivals, music, art, and colourful foliage. Discounts at hotels can go as a pleasant bonus. Take advantage! |
United States COVID-19 travel restrictions
Most travelers from Denver, DEN can enter Seattle, SEA.
Departure
| Additional information |
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Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.
Frequently asked questions
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