Find Deals on Flights from Seattle to Denver International

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 Seattle to Denver International

(Round-trip)
Depart: Tue Apr 25 2017 Return: Sat Apr 29 2017 Trip spans 5 days
Frontier
Frontier
SEA
3:10p
DEN
5:53p
2h 43m
nonstop
DEN
4:20a
SEA
7:15a
2h 55m
nonstop
Depart: Wed May 10 2017 Return: Tue May 16 2017 Trip spans 7 days
Major Airline
Major Airline
SEA
10:24a
DEN
1:04p
2h 40m
nonstop
DEN
12:20a
SEA
3:15a
2h 55m
nonstop
Depart: Sun Mar 19 2017 Return: Wed Mar 22 2017 Trip spans 4 days
Delta
Delta
SEA
3:00p
DEN
5:43p
2h 43m
nonstop
DEN
3:00a
SEA
6:05a
3h 05m
nonstop
Depart: Sat Mar 25 2017 Return: Sat Apr 1 2017 Trip spans 8 days
United
United
SEA
1:15a
DEN
3:57a
2h 42m
nonstop
DEN
3:25p
SEA
6:18p
2h 53m
nonstop
Depart: Thu Apr 13 2017 Return: Tue Apr 18 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
SEA
2:15a
DEN
4:48a
2h 33m
nonstop
DEN
4:25p
SEA
7:16p
2h 51m
nonstop
Depart: Tue Mar 7 2017 Return: Wed Mar 15 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
SEA
4:20p
DEN
6:52a
14h 32m
1 stop
DEN
11:12a
SEA
5:30p
6h 18m
1 stop
Depart: Wed Apr 26 2017 Return: Sat Apr 29 2017 Trip spans 4 days
Frontier
Frontier
SEA
2:35p
DEN
5:18p
2h 43m
nonstop
DEN
3:40p
SEA
6:35p
2h 55m
nonstop
Depart: Thu Apr 27 2017 Return: Mon May 1 2017 Trip spans 5 days
Frontier
Frontier
SEA
6:55a
DEN
9:38a
2h 43m
nonstop
DEN
3:40p
SEA
6:35p
2h 55m
nonstop
Depart: Mon May 1 2017 Return: Sat May 6 2017 Trip spans 6 days
Frontier
Frontier
SEA
2:35p
DEN
5:18p
2h 43m
nonstop
DEN
4:20a
SEA
7:15a
2h 55m
nonstop
Depart: Sun Apr 30 2017 Return: Fri May 5 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
10:15p
DEN
12:48a
2h 33m
nonstop
DEN
11:40a
SEA
2:35p
2h 55m
nonstop
Depart: Wed May 3 2017 Return: Sat May 6 2017 Trip spans 4 days
Frontier
Frontier
SEA
2:35p
DEN
5:18p
2h 43m
nonstop
DEN
4:20a
SEA
7:15a
2h 55m
nonstop
Depart: Mon Mar 20 2017 Return: Tue Mar 21 2017 Trip spans 2 days
Delta
Delta
SEA
3:00p
DEN
5:43p
2h 43m
nonstop
DEN
6:32a
SEA
9:37a
3h 05m
nonstop
Depart: Sat Apr 15 2017 Return: Tue Apr 18 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
11:50a
DEN
2:18p
2h 28m
nonstop
DEN
6:50a
SEA
9:50a
3h 00m
nonstop
Depart: Tue Mar 28 2017 Return: Fri Apr 7 2017 Trip spans 11 days
Major Airline
Major Airline
SEA
10:15p
DEN
12:44a
2h 29m
nonstop
DEN
8:00a
SEA
10:55a
2h 55m
nonstop
Depart: Thu May 4 2017 Return: Sat May 6 2017 Trip spans 3 days
Frontier
Frontier
SEA
3:10p
DEN
5:53p
2h 43m
nonstop
DEN
3:40p
SEA
6:35p
2h 55m
nonstop
Depart: Thu Mar 23 2017 Return: Wed Mar 29 2017 Trip spans 7 days
Delta
Delta
SEA
6:00a
DEN
8:47a
2h 47m
nonstop
DEN
8:30a
SEA
11:33a
3h 03m
nonstop
Depart: Mon Apr 17 2017 Return: Tue Apr 18 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
3:45p
DEN
6:12p
2h 27m
nonstop
DEN
3:00a
SEA
5:46a
2h 46m
nonstop
Depart: Sun Apr 9 2017 Return: Fri Apr 28 2017 Trip spans 20 days
Major Airline
Major Airline
SEA
7:50a
DEN
10:20a
2h 30m
nonstop
DEN
11:40a
SEA
2:35p
2h 55m
nonstop
Depart: Fri May 5 2017 Return: Sat May 6 2017 Trip spans 2 days
Frontier
Frontier
SEA
5:58a
DEN
8:41a
2h 43m
nonstop
DEN
3:40p
SEA
6:35p
2h 55m
nonstop
Depart: Sun Mar 26 2017 Return: Tue Mar 28 2017 Trip spans 3 days
Delta
Delta
SEA
3:50a
DEN
6:40a
2h 50m
nonstop
DEN
1:44p
SEA
4:48p
3h 04m
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

Seattle
$117
Destination

Denver
$117
Airlines Airline reviews

510 travelers who booked a flight from Seattle to Denver rated their chosen airlines with an average of 5.6.

Overall
5.7
Boarding
6.1
Crew
6.8
Comfort
5.4
Food
4.4
Entertainment
4.2