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

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Flight deals from Denver International to Seattle

Looking for a cheap last-minute deal or the best round-trip flight from Denver International to Seattle? Find the lowest prices on one-way and round-trip tickets right here.

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Find the cheapest month to fly from Denver International to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Seattle flights are currently cheapest in August.

Direct flights from Denver International to Seattle

Alternative Denver International to Seattle routes

Looking for the cheapest, fastest or easiest route from Denver International to Seattle? You could fly into the following airports instead.

Denver to Seattle: Flight information

The things to know before you go.
Cheapest flight found$57
Cheapest month to flyAugust
Average flight time2 hrs, 57 mins
Most popular airlineSouthwest Airlines
Average flights per week309

Finding cheap flights from Denver International to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Everett.
The best price we found for a round-trip flight from Denver International to Seattle is $57. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 56 minutes is the average flight time from Denver International to Seattle.
Southwest Airlines, Alaska Airlines and Air Tahiti Nui fly direct from Denver International to Seattle.
There are 313 flights per week flying from Denver International to Seattle, as of May 2024.
The cheapest month to fly from Denver International to Seattle is usually August.
If you're flying from Denver International Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 12.1 miles away from the center of Seattle. We've found flights to this airport from $57.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Seattle on Wednesday, August 21, 2024.
Yes – the average flight time is 2 hours and 56 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 53°F. August is typically the warmest month in Seattle, when it usually averages around 73°F. You can expect the least rain in July. The coldest month is December, with temperatures averaging 33°F. The rainiest month is November.
Currently, Frontier Airlines offers the cheapest flight tickets to Seattle.

Denver and Seattle: These two mountain cities have a lot of common in terms of amazing outdoor living, but they are 1,021 miles apart as the crow flies. On a nonstop flight, you’ll need an average of two and a half hours in the air to cover that distance.

 

There are plenty of options for direct flights between Denver and Seattle. United, Southwest, Frontier and Alaska Airlines all operated full schedules for this route. You’ll have at least 14 nonstop flights to choose from on any given day.

 

Making your way to Denver International (DEN)

 

The beautiful Jeppesen Terminal was built to resemble the soaring snowcapped peaks of its neighboring snow-capped mountain peaks. This pretty airport is also comfortable and convenient, making it a favorite with travelers from around the world.

 

The smart layout streamlines everything, with the main terminal serving as a base of operations. This is where all check in, ticketing, baggage handling and security operations take place.

 

You have your choice of free basic WiFi or a paid upgrade to the premium version. If you’re bringing your pet, you can avail of the special pet relief area, or let him stay behind in comfort at the luxurious airport boarding facility, which has incredible amenities like pools, flat screen televisions and round-the-clock live webcams so you can always check in on your furry pal.

 

If you want to take public transportation to the airport, you can grab one of the frequent Skyride buses. The service has five routes throughout the city, and fare costs between $9 and $13.

 

Arriving in Seattle

 

While Denver is famously sunny, Seattle is famously rainy. But it’s not as big a deal as you might think. Throw on a fleece and a windbreaker, and you’re ready to roam. This is a very walkable city, and many of the best things to do in Seattle all happen outside. With both the mountains and the water within arm’s reach, hiking, climbing, kayaking, and sailing are all hugely popular.

 

Once you get your fill of fresh air, Seattle has plenty of exciting indoor attractions, too. The epic ride up the Space Needle Spire shouldn’t be missed. The city’s museums are wonderful too. The Museum of History and Industry may sound a little dry, but the interactive exhibits are engaging for people of all ages.

 

Let us help you save on your trip from Denver to Seattle. With our airfare comparison tool, you’ll be able to see all the cheapest tickets in one place. It’s fast, easy, and completely free.

 


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.