Find Cheap 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: Tue Jun 6 2017 Return: Thu Jun 8 2017 Trip spans 3 days
Frontier
Frontier
DEN
4:20a
SEA
7:15a
2h 55m
nonstop
SEA
2:45p
DEN
5:25p
2h 40m
nonstop
Depart: Tue Jun 20 2017 Return: Wed Jul 12 2017 Trip spans 23 days
Major Airline
Major Airline
DEN
1:00a
SEA
3:57a
2h 57m
nonstop
SEA
4:00a
DEN
6:52a
2h 52m
nonstop
Depart: Tue Aug 15 2017 Return: Tue Aug 22 2017 Trip spans 8 days
Delta
Delta
DEN
1:45p
SEA
4:40p
2h 55m
nonstop
SEA
6:00a
DEN
8:48a
2h 48m
nonstop
Depart: Tue Aug 22 2017 Return: Sat Aug 26 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
DEN
2:45a
SEA
5:45a
3h 00m
nonstop
SEA
8:00a
DEN
10:49a
2h 49m
nonstop
Depart: Sun Jun 4 2017 Return: Wed Jun 7 2017 Trip spans 4 days
United
United
DEN
6:20p
SEA
9:13p
2h 53m
nonstop
SEA
1:35p
DEN
4:12p
2h 37m
nonstop
Depart: Thu Jun 8 2017 Return: Tue Jun 13 2017 Trip spans 6 days
Frontier
Frontier
DEN
4:20a
SEA
7:15a
2h 55m
nonstop
SEA
2:45p
DEN
5:25p
2h 40m
nonstop
Depart: Wed Aug 16 2017 Return: Tue Aug 22 2017 Trip spans 7 days
Delta
Delta
DEN
6:30a
SEA
9:36a
3h 06m
nonstop
SEA
6:00a
DEN
8:48a
2h 48m
nonstop
Depart: Wed Aug 23 2017 Return: Sat Aug 26 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
DEN
4:37p
SEA
7:30p
2h 53m
nonstop
SEA
8:00a
DEN
10:49a
2h 49m
nonstop
Depart: Thu Sep 14 2017 Return: Sun Sep 17 2017 Trip spans 4 days
Major Airline
Major Airline
DEN
3:05a
SEA
5:55a
2h 50m
nonstop
SEA
11:30a
DEN
1:58p
2h 28m
nonstop
Depart: Mon Aug 21 2017 Return: Tue Aug 22 2017 Trip spans 2 days
Delta
Delta
DEN
6:30a
SEA
9:36a
3h 06m
nonstop
SEA
6:00a
DEN
8:48a
2h 48m
nonstop
Depart: Fri Aug 25 2017 Return: Sat Aug 26 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
DEN
4:37p
SEA
7:30p
2h 53m
nonstop
SEA
8:00a
DEN
10:49a
2h 49m
nonstop
Depart: Thu Sep 21 2017 Return: Sun Sep 24 2017 Trip spans 4 days
Major Airline
Major Airline
DEN
11:00p
SEA
2:02a
3h 02m
nonstop
SEA
1:50a
DEN
4:24a
2h 34m
nonstop
Depart: Wed Jun 7 2017 Return: Sat Jun 10 2017 Trip spans 4 days
Frontier
Frontier
DEN
3:40p
SEA
6:37p
2h 57m
nonstop
SEA
5:58a
DEN
8:41a
2h 43m
nonstop
Depart: Sat Aug 26 2017 Return: Sun Sep 3 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
DEN
4:37p
SEA
7:30p
2h 53m
nonstop
SEA
2:20a
DEN
4:50a
2h 30m
nonstop
Depart: Mon Aug 28 2017 Return: Tue Aug 29 2017 Trip spans 2 days
Delta
Delta
DEN
6:30a
SEA
9:36a
3h 06m
nonstop
SEA
9:15a
DEN
11:53a
2h 38m
nonstop
Depart: Thu Sep 28 2017 Return: Sun Oct 1 2017 Trip spans 4 days
Major Airline
Major Airline
DEN
10:25a
SEA
1:15p
2h 50m
nonstop
SEA
5:50a
DEN
8:29a
2h 39m
nonstop
Depart: Mon Jun 5 2017 Return: Tue Jun 6 2017 Trip spans 2 days
Frontier
Frontier
DEN
3:40p
SEA
6:37p
2h 57m
nonstop
SEA
2:45p
DEN
5:25p
2h 40m
nonstop
Depart: Sat Sep 2 2017 Return: Tue Sep 12 2017 Trip spans 11 days
Delta
Delta
DEN
11:30a
SEA
2:25p
2h 55m
nonstop
SEA
3:00p
DEN
5:41p
2h 41m
nonstop
Depart: Tue Oct 3 2017 Return: Sun Oct 15 2017 Trip spans 13 days
Alaska Airlines
Alaska Airlines
DEN
2:25p
SEA
5:19p
2h 54m
nonstop
SEA
2:20a
DEN
4:54a
2h 34m
nonstop
Depart: Thu Oct 19 2017 Return: Sun Oct 22 2017 Trip spans 4 days
Major Airline
Major Airline
DEN
6:35a
SEA
9:25a
2h 50m
nonstop
SEA
2:55a
DEN
5:40a
2h 45m
nonstop
* 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
$156
Destination

Seattle
$156
Airlines Airline reviews

511 travelers who booked a flight from Denver to Seattle rated their chosen airlines with an average of 5.8.

Overall
5.9
Boarding
6.4
Crew
6.9
Comfort
5.5
Food
4.7
Entertainment
4.5