Find Deals on Flights from Seattle/Tacoma Intl to Denver International (SEA - DEN)

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/Tacoma Intl to Denver International

(Round-trip)
Depart: Sat Feb 27 2016 Return: Tue Mar 1 2016 Trip spans 4 days
Frontier
Frontier
SEA
2:25p
DEN
4:59p
2h 34m
nonstop
DEN
3:00a
SEA
5:58a
2h 58m
nonstop
Depart: Tue Mar 1 2016 Return: Tue Mar 8 2016 Trip spans 8 days
Frontier
Frontier
SEA
2:20p
DEN
4:55p
2h 35m
nonstop
DEN
3:00a
SEA
5:58a
2h 58m
nonstop
Depart: Wed Mar 2 2016 Return: Tue Mar 8 2016 Trip spans 7 days
Frontier
Frontier
SEA
2:20p
DEN
4:55p
2h 35m
nonstop
DEN
3:00a
SEA
5:58a
2h 58m
nonstop
Depart: Sat Mar 5 2016 Return: Tue Mar 8 2016 Trip spans 4 days
Frontier
Frontier
SEA
2:20p
DEN
4:55p
2h 35m
nonstop
DEN
3:00a
SEA
5:58a
2h 58m
nonstop
Depart: Wed Mar 9 2016 Return: Tue Mar 15 2016 Trip spans 6 days
Frontier
Frontier
SEA
2:20p
DEN
4:55p
2h 35m
nonstop
DEN
4:00a
SEA
6:58a
2h 58m
nonstop
Depart: Sat Mar 12 2016 Return: Tue Mar 15 2016 Trip spans 3 days
Frontier
Frontier
SEA
2:20p
DEN
4:55p
2h 35m
nonstop
DEN
12:35p
SEA
3:31p
2h 56m
nonstop
Depart: Tue Apr 5 2016 Return: Tue Apr 12 2016 Trip spans 8 days
Frontier
Frontier
SEA
3:25p
DEN
6:00p
2h 35m
nonstop
DEN
4:00a
SEA
6:58a
2h 58m
nonstop
Depart: Wed Apr 6 2016 Return: Wed Apr 13 2016 Trip spans 8 days
Frontier
Frontier
SEA
3:25p
DEN
6:00p
2h 35m
nonstop
DEN
4:00a
SEA
6:58a
2h 58m
nonstop
Depart: Tue Apr 12 2016 Return: Tue Apr 19 2016 Trip spans 8 days
Frontier
Frontier
SEA
3:25p
DEN
6:00p
2h 35m
nonstop
DEN
4:45a
SEA
7:43a
2h 58m
nonstop
Depart: Wed Apr 13 2016 Return: Tue Apr 19 2016 Trip spans 7 days
Frontier
Frontier
SEA
6:45a
DEN
9:25a
2h 40m
nonstop
DEN
4:45a
SEA
7:43a
2h 58m
nonstop
Depart: Sat Apr 16 2016 Return: Tue Apr 19 2016 Trip spans 4 days
Frontier
Frontier
SEA
3:20p
DEN
5:57p
2h 37m
nonstop
DEN
4:45a
SEA
7:43a
2h 58m
nonstop
Depart: Tue Apr 19 2016 Return: Tue Apr 26 2016 Trip spans 8 days
Frontier
Frontier
SEA
7:30a
DEN
10:10a
2h 40m
nonstop
DEN
4:45a
SEA
7:43a
2h 58m
nonstop
Depart: Tue Apr 26 2016 Return: Tue May 3 2016 Trip spans 8 days
Frontier
Frontier
SEA
7:30a
DEN
10:10a
2h 40m
nonstop
DEN
12:35p
SEA
3:31p
2h 56m
nonstop
Depart: Wed Apr 27 2016 Return: Tue May 3 2016 Trip spans 7 days
Frontier
Frontier
SEA
7:30a
DEN
10:10a
2h 40m
nonstop
DEN
12:35p
SEA
3:31p
2h 56m
nonstop
Depart: Sat Apr 30 2016 Return: Tue May 3 2016 Trip spans 4 days
Frontier
Frontier
SEA
3:20p
DEN
5:57p
2h 37m
nonstop
DEN
4:45a
SEA
7:43a
2h 58m
nonstop
Depart: Sun May 1 2016 Return: Tue May 3 2016 Trip spans 3 days
Spirit Airlines
Spirit Airlines
SEA
5:22a
DEN
10:57a
5h 35m
1 stop
DEN
2:19p
SEA
9:35p
7h 16m
1 stop
Depart: Sat Mar 26 2016 Return: Sat Apr 2 2016 Trip spans 8 days
Delta
Delta
SEA
3:45a
DEN
6:24a
2h 39m
nonstop
DEN
11:30a
SEA
2:29p
2h 59m
nonstop
Depart: Sat Apr 9 2016 Return: Sat Apr 16 2016 Trip spans 8 days
Alaska Airlines
Alaska Airlines
SEA
2:35a
DEN
5:04a
2h 29m
nonstop
DEN
4:10a
SEA
7:00a
2h 50m
nonstop
Depart: Mon May 23 2016 Return: Sun May 29 2016 Trip spans 7 days
United
United
SEA
4:02a
DEN
6:41a
2h 39m
nonstop
DEN
3:55a
SEA
6:49a
2h 54m
nonstop
Depart: Tue Jun 21 2016 Return: Tue Jun 28 2016 Trip spans 8 days
American Airlines
American Airlines
SEA
2:30a
DEN
5:00a
2h 30m
nonstop
DEN
2:00a
SEA
4:40a
2h 40m
nonstop
Direct flights SEA to DEN on Delta
Flight # Depart SEA Arrive DEN Sun Mon Tue Wed Thu Fri Sat Valid Between
5680 7:45 am 11:29 am Feb 15 - Feb 22
5680 7:45 am 11:29 am Feb 20 - Feb 27
5680 7:45 am 11:29 am Feb 21 - Feb 21
5680 7:45 am 11:29 am Feb 23 - Feb 29
5779 7:45 am 11:25 am Mar 16 - Mar 23
5779 7:45 am 11:24 am Mar 19 - Mar 19
5779 7:45 am 11:24 am Mar 5 - Mar 12
5779 7:45 am 11:25 am Mar 2 - Mar 11
5779 7:45 am 11:25 am Mar 13 - Mar 29
5680 7:47 am 11:29 am Mar 1 - Mar 1
1155 11:15 am 2:53 pm Mar 2 - Mar 12
1155 11:15 am 2:53 pm Mar 13 - Mar 25
5778 11:15 am 2:53 pm Feb 21 - Feb 28
5778 11:15 am 2:53 pm Feb 22 - Feb 22
5778 11:15 am 2:53 pm Feb 29 - Mar 1
5778 11:15 am 2:52 pm Feb 27 - Feb 27
5711 3:00 pm 6:39 pm Feb 18 - Feb 23
5711 3:00 pm 6:39 pm Feb 24 - Mar 1
5711 3:00 pm 6:39 pm Feb 15 - Feb 22
5711 3:00 pm 6:38 pm Feb 27 - Feb 27
5735 3:00 pm 6:42 pm Mar 2 - Mar 11
5735 3:00 pm 6:42 pm Mar 6 - Mar 6
5735 3:00 pm 6:42 pm Mar 13 - Mar 18
5735 3:00 pm 6:42 pm Mar 23 - Mar 23
5735 3:00 pm 6:42 pm Mar 20 - Mar 25
5739 3:00 pm 6:39 pm Feb 28 - Feb 28
4639 3:04 pm 6:44 pm Mar 5 - Mar 12
4639 3:04 pm 6:44 pm Mar 19 - Mar 19
1166 6:15 pm 9:51 pm Mar 3 - Mar 3
1166 6:15 pm 9:51 pm Mar 10 - Mar 12
1166 6:15 pm 9:51 pm Mar 13 - Mar 26
1166 6:15 pm 9:51 pm Mar 2 - Mar 9
5783 6:30 pm 10:09 pm Feb 17 - Feb 24
5783 6:30 pm 10:09 pm Feb 20 - Feb 27
5783 6:30 pm 10:09 pm Feb 16 - Feb 23
761 6:30 pm 10:09 pm Mar 1 - Mar 1
5783 7:59 pm 11:38 pm Feb 25 - Feb 25
5783 7:59 pm 11:38 pm Feb 15 - Feb 29
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We make every attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller
At KAYAK we don’t set 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 don'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.

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Airports
Origin

Seattle
$138
Destination

Denver
$138