Find Deals on Flights from Denver International to Seattle

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Denver International to Seattle

(Round-trip)
Depart: Sat Apr 29 2017 Return: Thu May 4 2017 Trip spans 6 days
Frontier
Frontier
DEN
4:20a
SEA
7:15a
2h 55m
nonstop
SEA
3:10p
DEN
5:53p
2h 43m
nonstop
Depart: Thu May 4 2017 Return: Sun May 7 2017 Trip spans 4 days
Major Airline
Major Airline
DEN
12:20a
SEA
3:15a
2h 55m
nonstop
SEA
10:15p
DEN
12:51a
2h 36m
nonstop
Depart: Sun Mar 19 2017 Return: Sat Mar 25 2017 Trip spans 7 days
Delta
Delta
DEN
3:00a
SEA
6:05a
3h 05m
nonstop
SEA
11:20a
DEN
2:07p
2h 47m
nonstop
Depart: Tue Mar 28 2017 Return: Tue Apr 4 2017 Trip spans 8 days
Alaska Airlines
Alaska Airlines
DEN
4:25p
SEA
7:14p
2h 49m
nonstop
SEA
3:45p
DEN
6:09p
2h 24m
nonstop
Depart: Sun Mar 5 2017 Return: Sat Mar 11 2017 Trip spans 7 days
Spirit Airlines
Spirit Airlines
DEN
2:05a
SEA
4:50a
26h 45m
1 stop
SEA
4:20p
DEN
6:52a
13h 32m
1 stop
Depart: Sat May 6 2017 Return: Mon May 8 2017 Trip spans 3 days
Frontier
Frontier
DEN
3:40p
SEA
6:35p
2h 55m
nonstop
SEA
2:24p
DEN
5:04p
2h 40m
nonstop
Depart: Mon May 8 2017 Return: Tue May 9 2017 Trip spans 2 days
Frontier
Frontier
DEN
3:40p
SEA
6:35p
2h 55m
nonstop
SEA
2:54p
DEN
5:34p
2h 40m
nonstop
Depart: Sat May 13 2017 Return: Tue May 16 2017 Trip spans 4 days
Frontier
Frontier
DEN
3:40p
SEA
6:35p
2h 55m
nonstop
SEA
2:54p
DEN
5:34p
2h 40m
nonstop
Depart: Sat Mar 11 2017 Return: Tue May 9 2017 Trip spans 59 days
Major Airline
Major Airline
DEN
5:40a
SEA
8:43a
3h 03m
2 stops
SEA
10:54a
DEN
1:34p
2h 40m
2 stops
Depart: Tue Mar 21 2017 Return: Wed Mar 22 2017 Trip spans 2 days
Delta
Delta
DEN
8:30a
SEA
11:33a
3h 03m
nonstop
SEA
3:50a
DEN
6:40a
2h 50m
nonstop
Depart: Wed Mar 29 2017 Return: Tue Apr 4 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
DEN
6:45a
SEA
9:40a
2h 55m
nonstop
SEA
3:45p
DEN
6:09p
2h 24m
nonstop
Depart: Sat Apr 1 2017 Return: Mon Apr 10 2017 Trip spans 10 days
Major Airline
Major Airline
DEN
6:45a
SEA
9:39a
2h 54m
nonstop
SEA
10:55a
DEN
1:33p
2h 38m
nonstop
Depart: Fri Apr 28 2017 Return: Mon May 1 2017 Trip spans 4 days
Frontier
Frontier
DEN
4:20a
SEA
7:15a
2h 55m
nonstop
SEA
5:57a
DEN
8:40a
2h 43m
nonstop
Depart: Thu Mar 30 2017 Return: Tue Apr 4 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
DEN
4:25p
SEA
7:14p
2h 49m
nonstop
SEA
3:45p
DEN
6:09p
2h 24m
nonstop
Depart: Sun Apr 30 2017 Return: Mon May 1 2017 Trip spans 2 days
Delta
Delta
DEN
2:45a
SEA
5:58a
3h 13m
nonstop
SEA
6:00a
DEN
8:48a
2h 48m
nonstop
Depart: Sun Apr 2 2017 Return: Mon Apr 10 2017 Trip spans 9 days
Major Airline
Major Airline
DEN
11:00p
SEA
1:58a
2h 58m
nonstop
SEA
10:55a
DEN
1:33p
2h 38m
nonstop
Depart: Wed May 10 2017 Return: Fri May 12 2017 Trip spans 3 days
Frontier
Frontier
DEN
3:40p
SEA
6:35p
2h 55m
nonstop
SEA
5:58a
DEN
8:41a
2h 43m
nonstop
Depart: Mon Apr 3 2017 Return: Tue Apr 4 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
DEN
4:25p
SEA
7:14p
2h 49m
nonstop
SEA
3:45p
DEN
6:09p
2h 24m
nonstop
Depart: Sat May 20 2017 Return: Sun May 21 2017 Trip spans 2 days
Delta
Delta
DEN
1:39p
SEA
4:34p
2h 55m
nonstop
SEA
3:40a
DEN
6:24a
2h 44m
nonstop
Depart: Mon Apr 10 2017 Return: Wed Apr 12 2017 Trip spans 3 days
Major Airline
Major Airline
DEN
8:40a
SEA
11:32a
2h 52m
2 stops
SEA
10:55a
DEN
1:33p
2h 38m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Denver
$117
Destination

Seattle
$117
Airlines Airline reviews

391 travelers who booked a flight from Denver to Seattle rated their chosen airlines with an average of 5.5.

Overall
5.5
Boarding
6.2
Crew
6.6
Comfort
5.2
Food
4.2
Entertainment
3.9