Find Deals on Flights from Costa Rica to Seattle/Tacoma Intl

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 Costa Rica to Seattle/Tacoma Intl

(Round-trip)
Depart: Fri May 5 2017 Return: Sun May 7 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
11:15p
11h 05m
1 stop
SEA
5:55p
SJO
10:10a
16h 15m
1 stop
Depart: Thu May 4 2017 Return: Sun May 14 2017 Trip spans 11 days
Major Airline
Major Airline
SJO
9:47p
SEA
10:29a
12h 42m
2 stops
SEA
10:55a
SJO
12:45a
13h 50m
2 stops
Depart: Sat Mar 18 2017 Return: Thu Apr 20 2017 Trip spans 34 days
Delta
Delta
SJO
4:13a
SEA
5:03p
12h 50m
1 stop
SEA
2:49p
SJO
2:00a
11h 11m
1 stop
Depart: Tue Mar 28 2017 Return: Tue Apr 4 2017 Trip spans 8 days
United
United
SJO
9:05p
SEA
7:02p
21h 57m
2 stops
SEA
9:05a
SJO
6:35a
21h 30m
3 stops
Depart: Wed Apr 12 2017 Return: Wed Apr 19 2017 Trip spans 8 days
Avianca
Avianca
SJO
1:47a
SEA
2:45p
12h 58m
2 stops
SEA
2:55p
SJO
11:05a
20h 10m
2 stops
Depart: Fri Apr 7 2017 Return: Tue Apr 11 2017 Trip spans 5 days
Air Canada
Air Canada
SJO
4:15a
SEA
7:30a
27h 15m
1 stop
SEA
4:05a
SJO
3:15p
11h 10m
1 stop
Depart: Wed Mar 29 2017 Return: Tue Apr 4 2017 Trip spans 7 days
United
United
SJO
2:00a
SEA
7:02p
17h 02m
2 stops
SEA
9:05a
SJO
6:35a
21h 30m
3 stops
Depart: Wed Apr 5 2017 Return: Tue Apr 11 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
5:44a
17h 34m
1 stop
SEA
1:50p
SJO
10:10a
20h 20m
1 stop
Depart: Mon Jul 24 2017 Return: Mon Aug 7 2017 Trip spans 15 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
11:12p
11h 02m
1 stop
SEA
1:00a
SJO
10:10a
9h 10m
1 stop
Depart: Tue Apr 4 2017 Return: Mon Apr 10 2017 Trip spans 7 days
United
United
SJO
2:30a
SEA
7:15p
16h 45m
2 stops
SEA
9:50a
SJO
6:35a
20h 45m
3 stops
Depart: Sun Jul 30 2017 Return: Sat Aug 5 2017 Trip spans 7 days
Avianca
Avianca
SJO
8:20a
SEA
4:56a
20h 36m
2 stops
SEA
3:05p
SJO
11:05a
20h 00m
2 stops
Depart: Fri Jul 28 2017 Return: Mon Aug 7 2017 Trip spans 11 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
11:12p
11h 02m
1 stop
SEA
1:00a
SJO
10:10a
9h 10m
1 stop
Depart: Mon Apr 3 2017 Return: Mon Apr 10 2017 Trip spans 8 days
United
United
SJO
8:45a
SEA
10:12p
13h 27m
2 stops
SEA
9:50a
SJO
6:35a
20h 45m
3 stops
Depart: Sat Jul 29 2017 Return: Mon Aug 7 2017 Trip spans 10 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
11:12p
11h 02m
1 stop
SEA
1:00a
SJO
10:10a
9h 10m
1 stop
Depart: Sun Apr 2 2017 Return: Sat Apr 8 2017 Trip spans 7 days
United
United
SJO
9:05p
SEA
6:01p
20h 56m
2 stops
SEA
3:28p
SJO
6:35a
15h 07m
2 stops
Depart: Sun Apr 9 2017 Return: Tue Apr 11 2017 Trip spans 3 days
Air Canada
Air Canada
SJO
8:35a
SEA
6:10p
33h 35m
2 stops
SEA
4:05a
SJO
3:15p
11h 10m
1 stop
Depart: Wed Jul 26 2017 Return: Tue Aug 8 2017 Trip spans 14 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
5:50a
17h 40m
1 stop
SEA
5:25p
SJO
10:10a
16h 45m
1 stop
Depart: Tue Jul 25 2017 Return: Fri Aug 4 2017 Trip spans 11 days
United
United
SJO
10:05a
SEA
9:15p
11h 10m
1 stop
SEA
6:55p
SJO
9:10a
14h 15m
1 stop
Depart: Thu Feb 23 2017 Return: Fri Mar 3 2017 Trip spans 9 days
United
United
SJO
2:30a
SEA
6:15p
15h 45m
1 stop
SEA
6:50p
SJO
4:05a
9h 15m
1 stop
Depart: Thu Apr 6 2017 Return: Tue Apr 11 2017 Trip spans 6 days
United
United
SJO
8:40a
SEA
5:51a
21h 11m
2 stops
SEA
9:50a
SJO
6:35a
20h 45m
3 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

San Jose
$514
Destination

Seattle
$514