¥11,630 Cheap Flights from Seattle (SEA) to Denver (DEN)

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Cheap Flights from Seattle to Denver (SEA-DEN)

Prices were available within the past 7 days and start at ¥11,630 for one-way flights and ¥25,830 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Delta
Delta
Delta
United
Delta
Delta
Delta
Delta
American Airlines

Frequently asked questions

How much is a flight from Sea-Tac Airport to DEN?
Pack your bags, because round-trip flights from Seattle - Tacoma Intl. Airport (SEA) to DEN start from ¥25,830. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book today to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Denver Airport?
This varies between airlines, as each has its own set of terms and conditions. Head to the Customer Service Portal, where there are simple instructions on how to cancel your flight online.
How do I find cheap flights from SEA to DEN that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to DIA airport flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Sea-Tac Airport to Denver Intl. Airport (DEN)?
Get comfy in your seat, pick a movie and 2 hours and 41 minutes will whiz by in the blink of an eye. That's how long it takes to get to Denver Intl. Airport (DEN) from SEA.
How far is the flight from SEA to DEN?
Around 1,650 kilometers separates SeaTac and Denver, so pack some in-flight entertainment to keep you occupied for a couple of hours. That gripping novel you haven't finished will be ideal.
Which airlines fly direct from Sea-Tac Airport to Denver Airport?
It's easy to fly directly from Sea-Tac Airport to DIA airport. Here are some of the top carriers that offer nonstop services on this route:

  • United Airlines - (UA) with 191 monthly flights
  • Alaska Airlines - (AS) with 152 monthly flights
  • Delta Air Lines - (DL) with 91 monthly flights
  • Frontier Airlines - (F9) with 30 monthly flights

Are Sea-Tac Airport to DEN flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Seattle - Tacoma Intl. Airport (SEA) to DEN can be hit-or-miss. You may be able to score a great bargain, but then again, you could miss out entirely! If you'd prefer to start planning your trip early on, Expedia compares flight deals up to a year in advance. Just remember that not all airlines release their prices so far in advance. Our top tip? Check back often as prices are updated regularly.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
¥25,830
Distance
1635 km
Average flight time
3 hours 41 mins

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Book with confidence

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Seattle nearby Airports

Seattle Paine Field Intl. Airport

*Available to Expedia members.