Cheap flights from Denver to Seattle

Round-trip
Economy
Denver (DEN)
Seattle (SEA)
Sat 5/8
Sat 5/15
Any month
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Flight information for Denver to Seattle
(DEN to SEA)

Find info about flight duration, direct flights, and airports for your flight from Denver to Seattle
Best Price Found$57The best flight deal from Denver to Seattle found on momondo in the last 72 hours is $57
Fastest flight time2h 55mThe fastest flight from Denver to Seattle takes 2h 55m
Direct flightsMo, Tu, Fr, Sa and SuDirect flights go from Denver to Seattle on Monday, Tuesday, Friday, Saturday and Sunday. Airlines offering direct flights are: Delta, Alaska Airlines and Frontier.
Airports in Seattle3 airportsThere are 3 airports near Seattle: Seattle King County/Boeing (BFI), Seattle Lake Union Spb (LKE), Seattle/Tacoma Intl (SEA)

How to get the cheapest flight ticket from Denver to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Denver to Seattle?

January
The cheapest time of year to fly to Seattle from Denver is January. Most expensive is December

What is the cheapest day to depart Denver for Seattle?

Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Denver to Seattle?

at noon
Denver to Seattle flights are approximately 9% more expensive in the afternoon than at noon

What is the cheapest airline that flies to Seattle from Denver?

Major Airline
Major Airline, Spirit Airlines, and Frontier are the most popular carriers operating from Denver to Seattle

What is the cheapest Denver to Seattle flight route?

Denver Intl - Seattle/Tacoma Intl
Fly from Denver Intl to Seattle/Tacoma Intl for the best Denver - Seattle flight prices
DEN
Denver Intl
SEA
Seattle/Tacoma Intl

How far in advance should you book Denver to Seattle flights?

20 days before
The cheapest time to buy a flight from Denver to Seattle is approximately 20 days to departure
60
Days before departure
0

Easily compare round-trip flights from Denver to Seattle

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Denver to Seattle by changing tabs
Multiple Airlines
Apr 20
3:40 pmDenver Intl
2h 55m
6:35 pmSeattle/Tacoma Intl
Apr 30
3:09 pmSeattle/Tacoma Intl
2h 37m
5:46 pmDenver Intl
Frontier
Apr 15
2:35 amDenver Intl
2h 58m
5:33 amSeattle/Tacoma Intl
Apr 19
3:09 pmSeattle/Tacoma Intl
2h 37m
5:46 pmDenver Intl
Frontier
Apr 15
2:35 amDenver Intl
2h 58m
5:33 amSeattle/Tacoma Intl
Apr 22
5:28 amSeattle/Tacoma Intl
2h 38m
8:06 amDenver Intl

Find the cheapest one-way flights from Denver to Seattle

If you're looking for one-way flights from Denver to Seattle, view some of our deals below provided by Frontier
Alaska Airlines
May 7
11:00 amDenver Intl
2h 56m
1:56 pmSeattle/Tacoma Intl
Frontier
Apr 18
2:35 amDenver Intl
2h 58m
5:33 amSeattle/Tacoma Intl
Frontier
May 17
11:59 amDenver Intl
2h 59m
2:58 pmSeattle/Tacoma Intl

Best airlines flying from Denver to Seattle

Compare and see reviews for airlines that fly from Denver to Seattle with momondo
AirlineRatingFree CancellationPrice
Frontier
PriceFrom $58
Free Cancellation
Rating
7.0
American Airlines
PriceFrom $58
Free Cancellation
Rating
7.2
7.9

Boarding

7.0

Comfort

7.7

Crew

7.4

Entertainment

6.4

Food

Reviews

Pros: Entertainment

Cons: The seat space/leg room is tiny. I found it impossible to fall asleep, being in the middle of a row of three with two "big" people in either side.

1 / 8
Delta
PriceFrom $69
Free Cancellation
Rating
8.3
8.2

Boarding

8.5

Comfort

8.8

Crew

7.8

Entertainment

8.1

Food

Reviews

Pros: I appreciate the choice of snacks.

Cons: The coffee served on the flight was lukewarm.

1 / 9
United Airlines
PriceFrom $78
Free Cancellation
Rating
6.6
6.4

Boarding

7.0

Comfort

7.3

Crew

6.0

Entertainment

6.6

Food

Reviews

Pros: It was meh....

Cons: I got no notification that the flight was going to be 1 hour earlier

1 / 6
Alaska Airlines
PriceFrom $78
Free Cancellation
Rating
7.7
8.0

Boarding

8.0

Comfort

8.0

Crew

7.0

Entertainment

7.3

Food

Reviews

Pros: Yeah

1 / 4
Spirit Airlines
PriceFrom $87
Free Cancellation
Rating
7.3
7.3

Boarding

7.3

Comfort

7.3

Crew

7.3

Entertainment

7.3

Food

Reviews

Pros: We made it safely

Cons: Awful experience. Early in the day I received several updates about my flight being delayed. No details on why, but much appreciated. Upon arriving to the airport the flight was still showing 59 mins delayed. Oddly, with all of the early communxaruin, it suddenly ceased! No communication for at least 2 hrs before the flight. Even as the 'would be' boarding window, the line formed with people asking questions... yet there were no answers or updates to the proposed time of departure. Even when the 59 min late departure came and went, there was NO communication. Folks were in an uproar! Finally, with no announcement, the gate attendant just started checking boarding passes and letting people go through the gate. Huh? I have zone 1, yet he said, we're just boarding everybody.... and, on the 3+ hr flight, only 1 bathroom worked. AWFUL EXPERIENCE!!!

1 / 1
Southwest
PriceFrom $101
Free Cancellation
Rating
10.0

Which airlines flying from Denver Intl to Seattle/Tacoma Intl have COVID-19 safety policies in place?

Many airlines have put safety measures in place to reduce the spread of COVID-19. Two of the airlines doing this are Alaska Airlines and Delta. Usage of HEPA filters, scheduled sanitation, enhanced cleaning of aircrafts, pre-flight testing, and mask policies are some of the implemented practices made by airlines to help keep you safe as you depart from Denver Intl to Seattle/Tacoma Intl. Keep in mind that policies will vary by airline.

Are airlines flying from Denver Intl to Seattle/Tacoma Intl offering flexible cancellation due to COVID-19?

Some of our partner airlines flying from Denver Intl to Seattle/Tacoma Intl are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are Delta, Alaska Airlines, and Frontier. You can search for the full list of airlines like Delta that are offering this flexibility.


Alternative routes for Denver to Seattle

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Denver to Spokane Flights
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Denver to Walla Walla Flights
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Montrose to Seattle Flights
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Grand Junction to Seattle Flights
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4h 28m
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