Find Deals on Flights from Costa Rica 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
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Costa Rica to Seattle

(Round-trip)
Depart: Fri May 5 2017 Return: Sat May 6 2017 Trip spans 2 days
American Airlines
American Airlines
SJO
3:54a
SEA
11:48a
31h 54m
1 stop
SEA
1:30p
SJO
6:38a
17h 08m
2 stops
Depart: Fri Feb 3 2017 Return: Mon Feb 6 2017 Trip spans 4 days
United
United
SJO
10:10a
SEA
8:18a
22h 08m
2 stops
SEA
6:15a
SJO
2:15p
32h 00m
2 stops
Depart: Wed Mar 1 2017 Return: Sat Mar 11 2017 Trip spans 11 days
Delta
Delta
SJO
4:02a
SEA
8:22p
16h 20m
2 stops
SEA
6:00a
SJO
12:56a
18h 56m
1 stop
Depart: Sun Mar 5 2017 Return: Thu Mar 9 2017 Trip spans 5 days
Avianca
Avianca
SJO
12:40a
SEA
10:14p
21h 34m
2 stops
SEA
2:10p
SJO
2:58a
12h 48m
2 stops
Depart: Fri Mar 24 2017 Return: Sun Mar 26 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
2:10p
26h 00m
2 stops
SEA
7:45a
SJO
10:10a
26h 25m
2 stops
Depart: Tue May 2 2017 Return: Thu May 4 2017 Trip spans 3 days
American Airlines
American Airlines
SJO
6:40a
SEA
4:39p
33h 59m
2 stops
SEA
2:15a
SJO
12:50p
10h 35m
2 stops
Depart: Tue Feb 14 2017 Return: Mon Feb 20 2017 Trip spans 7 days
United
United
SJO
8:45a
SEA
10:15a
25h 30m
2 stops
SEA
10:44a
SJO
2:15p
27h 31m
2 stops
Depart: Wed Feb 15 2017 Return: Wed Feb 22 2017 Trip spans 8 days
United
United
SJO
8:45a
SEA
10:14p
13h 29m
2 stops
SEA
1:40p
SJO
5:40a
16h 00m
2 stops
Depart: Wed Mar 15 2017 Return: Wed Apr 5 2017 Trip spans 22 days
Avianca
Avianca
SJO
1:40a
SEA
6:30p
16h 50m
2 stops
SEA
6:40p
SJO
11:05a
16h 25m
2 stops
Depart: Sun Feb 12 2017 Return: Tue Feb 21 2017 Trip spans 10 days
American Airlines
American Airlines
SJO
2:50a
SEA
4:45p
13h 55m
1 stop
SEA
12:59p
SJO
10:00p
9h 01m
1 stop
Depart: Thu Feb 16 2017 Return: Wed Feb 22 2017 Trip spans 7 days
United
United
SJO
2:30a
SEA
2:54p
12h 24m
1 stop
SEA
1:40p
SJO
5:40a
16h 00m
2 stops
Depart: Mon Apr 3 2017 Return: Mon Apr 10 2017 Trip spans 8 days
Avianca
Avianca
SJO
8:20a
SEA
5:51a
21h 31m
2 stops
SEA
6:40p
SJO
11:05a
16h 25m
2 stops
Depart: Sat Feb 18 2017 Return: Thu Feb 23 2017 Trip spans 6 days
American Airlines
American Airlines
SJO
2:50a
SEA
9:48p
18h 58m
1 stop
SEA
12:59p
SJO
10:00p
9h 01m
1 stop
Depart: Tue Apr 4 2017 Return: Mon Apr 10 2017 Trip spans 7 days
Avianca
Avianca
SJO
1:47a
SEA
5:49p
16h 02m
2 stops
SEA
2:58p
SJO
4:58a
14h 00m
2 stops
Depart: Fri Feb 17 2017 Return: Wed Feb 22 2017 Trip spans 6 days
United
United
SJO
10:10a
SEA
2:54p
28h 44m
1 stop
SEA
1:40p
SJO
5:40a
16h 00m
2 stops
Depart: Fri May 26 2017 Return: Fri Jun 30 2017 Trip spans 36 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
11:13p
11h 03m
1 stop
SEA
1:00a
SJO
10:30a
9h 30m
1 stop
Depart: Mon Mar 6 2017 Return: Sun Mar 12 2017 Trip spans 6 days
American Airlines
American Airlines
SJO
2:30a
SEA
8:34p
18h 04m
1 stop
SEA
11:00a
SJO
12:00a
13h 00m
1 stop
Depart: Wed Apr 5 2017 Return: Mon Apr 10 2017 Trip spans 6 days
Avianca
Avianca
SJO
1:40a
SEA
10:13p
20h 33m
2 stops
SEA
6:40p
SJO
11:05a
16h 25m
2 stops
Depart: Mon Feb 20 2017 Return: Wed Feb 22 2017 Trip spans 3 days
United
United
SJO
10:10a
SEA
6:15p
32h 05m
1 stop
SEA
1:40p
SJO
5:40a
16h 00m
2 stops
Depart: Sat May 27 2017 Return: Fri Jun 30 2017 Trip spans 35 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
5:44a
17h 34m
1 stop
SEA
1:00a
SJO
10:30a
9h 30m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

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.

We compile tonnes of data for you
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

San Jose
$466
Destination

Seattle
$466