Cheap Flights from Denver (DEN) to Seattle (SEA)

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Popular airlines from Denver Intl. Airport (DEN) to Seattle-Tacoma International Airport (SEA)

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Find the cheapest month to fly from Denver (DEN) to Seattle (SEA)

April is typically the cheapest month to fly

From AEDĀ 206 - AEDĀ 577 per traveler.

Frequently asked questions

How long does it take to fly from Denver Airport to Sea-Tac Airport?
Book a fare with United Airlines and you can expect to be cruising the skies for roughly 2 hours and 59 minutes. This popular airline has a direct flight that jets off at 4:05PM from DEN and reaches SEA at 6:04PM. Expedia has some amazing flight deals, so take a peek at what's available on this route today.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to SEA last minute?
When it comes to booking your flights, it's better to be prepared. While you could find a last-minute deal on a DIA airport to Seattle - Tacoma Intl. Airport (SEA) flight, fares usually don't get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 ā€“ 35 days in advance. For international travel it's between three and four months.
What airline has the least delays from DIA airport to Seattle - Tacoma Intl. Airport (SEA)?
If you don't want to be stuck at the departure gate ā€” or worse, have your trip upended due to a flight delay ā€” travel with Delta Air Lines. Around 86% of its Denver Intl. Airport (DEN) to SEA services arrive on schedule. You can look up your flight status before you even get to the airport through the Expedia App. It also delivers real-time alerts about other useful things, such as any gate changes, baggage carousel numbers and how to get to your hotel. Everything you need to know is in your pocket with this handy travel companion.
What airports do you fly into for Seattle from Denver?
With Seattle - Tacoma Intl. Airport (SEA), Renton Municipal Airport (RNT) and Boeing Field Airport (BFI) to pick from, journeying from Denver to Seattle is easy. The city's key hub, Seattle - Tacoma Intl. Airport (SEA), is approximately 19 kilometers south of the downtown area. As well as ticket costs, consider factors like public transportation options from the airport and the distance to your hotel before deciding where you'll get off the plane. Get your Seattle adventure off to a terrific start by visiting Space Needle and Pike Place Market.
What are the most popular departure times for flights from DIA airport to Sea-Tac Airport?
The most popular departure times for journeys from Denver Intl. Airport (DEN) to Sea-Tac Airport fall between 6:00 AM - 7:00 AM on Delta Air Lines. Our suggestion is to jet off in the morning. The earlier you travel, the better your odds of a delay-free flight with lighter air traffic around.
Can I change the date of my flight from Denver Intl. Airport (DEN) to SEA?
You can quickly and easily make changes to your Denver Airport to SEA trip by logging in to the Expedia Trips portal. But before amending dates or times, read through the rules and restrictions in your itinerary to see what the carrier will let you do and if fees apply. Some airlines have a change fee per person, plus any difference in ticket prices. However, if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also stop by our Customer Service portal for further details and to connect with our Virtual Agent.

Travel information

Origin airport
Denver Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
1635 km
Average flight time
1 hour 58 mins

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