Find Cheap 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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Costa Rica to Seattle/Tacoma Intl

(Round-trip)
Depart: Tue Oct 3 2017 Return: Wed Oct 4 2017 Trip spans 2 days
American Airlines
American Airlines
SJO
2:55a
SEA
11:29a
32h 34m
1 stop
SEA
1:34p
SJO
1:39p
24h 05m
2 stops
Depart: Fri Sep 8 2017 Return: Wed Sep 13 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
SJO
12:15p
SEA
11:15p
11h 00m
1 stop
SEA
1:00a
SJO
10:14a
9h 14m
1 stop
Depart: Tue Aug 22 2017 Return: Tue Aug 29 2017 Trip spans 8 days
Aeromexico
Aeromexico
SJO
7:50a
SEA
11:33a
27h 43m
2 stops
SEA
5:45a
SJO
5:50a
24h 05m
2 stops
Depart: Thu Sep 14 2017 Return: Sun Oct 22 2017 Trip spans 39 days
United
United
SJO
2:30a
SEA
5:29p
14h 59m
1 stop
SEA
7:55p
SJO
6:35a
10h 40m
1 stop
Depart: Mon Sep 11 2017 Return: Sat Sep 23 2017 Trip spans 13 days
Alaska Airlines
Alaska Airlines
SJO
12:15p
SEA
6:44a
18h 29m
1 stop
SEA
1:00a
SJO
10:14a
9h 14m
1 stop
Depart: Mon Aug 28 2017 Return: Tue Aug 29 2017 Trip spans 2 days
American Airlines
American Airlines
SJO
2:55a
SEA
9:37p
18h 42m
1 stop
SEA
1:55a
SJO
12:58p
35h 03m
2 stops
Depart: Wed Sep 13 2017 Return: Sat Sep 23 2017 Trip spans 11 days
Alaska Airlines
Alaska Airlines
SJO
12:15p
SEA
11:15p
11h 00m
1 stop
SEA
1:00a
SJO
10:14a
9h 14m
1 stop
Depart: Wed Aug 23 2017 Return: Tue Aug 29 2017 Trip spans 7 days
Aeromexico
Aeromexico
SJO
2:08a
SEA
5:44a
27h 36m
2 stops
SEA
2:15a
SJO
5:50a
27h 35m
2 stops
Depart: Mon Sep 18 2017 Return: Mon Oct 23 2017 Trip spans 36 days
Alaska Airlines
Alaska Airlines
SJO
12:15p
SEA
5:44a
17h 29m
1 stop
SEA
1:00a
SJO
10:10a
9h 10m
1 stop
Depart: Tue Sep 12 2017 Return: Mon Sep 25 2017 Trip spans 14 days
Aeromexico
Aeromexico
SJO
7:50a
SEA
11:57a
28h 07m
2 stops
SEA
8:34a
SJO
5:50a
21h 16m
2 stops
Depart: Sat Sep 9 2017 Return: Sat Sep 23 2017 Trip spans 15 days
Alaska Airlines
Alaska Airlines
SJO
12:15p
SEA
11:15p
11h 00m
1 stop
SEA
1:00a
SJO
10:14a
9h 14m
1 stop
Depart: Thu Oct 26 2017 Return: Sun Dec 3 2017 Trip spans 39 days
Aeromexico
Aeromexico
SJO
7:50a
SEA
5:40a
21h 50m
2 stops
SEA
5:30p
SJO
4:25a
10h 55m
1 stop
Depart: Sat Dec 23 2017 Return: Fri Jan 5 2018 Trip spans 14 days
United
United
SJO
1:30a
SEA
2:25p
12h 55m
1 stop
SEA
7:15p
SJO
4:30a
9h 15m
1 stop
Depart: Fri Sep 15 2017 Return: Sat Sep 23 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
SJO
12:15p
SEA
11:15p
11h 00m
1 stop
SEA
1:00a
SJO
10:14a
9h 14m
1 stop
Depart: Sun Jan 21 2018 Return: Fri Jan 26 2018 Trip spans 6 days
Aeromexico
Aeromexico
SJO
7:30a
SEA
4:30p
33h 00m
2 stops
SEA
5:30p
SJO
4:25a
10h 55m
1 stop
Depart: Sat Sep 16 2017 Return: Mon Oct 23 2017 Trip spans 38 days
Alaska Airlines
Alaska Airlines
SJO
12:15p
SEA
11:15p
11h 00m
1 stop
SEA
1:00a
SJO
10:10a
9h 10m
1 stop
Depart: Fri Aug 25 2017 Return: Thu Aug 31 2017 Trip spans 7 days
Aeromexico
Aeromexico
SJO
7:50a
SEA
11:17a
27h 27m
2 stops
SEA
5:45a
SJO
5:50a
24h 05m
2 stops
Depart: Sun Sep 10 2017 Return: Sat Sep 23 2017 Trip spans 14 days
Aeromexico
Aeromexico
SJO
2:08a
SEA
6:45p
16h 37m
2 stops
SEA
7:50a
SJO
5:50a
22h 00m
2 stops
Depart: Wed Oct 25 2017 Return: Tue Dec 5 2017 Trip spans 42 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
SEA
5:48a
17h 38m
1 stop
SEA
2:40p
SJO
9:20a
18h 40m
1 stop
Depart: Sun Aug 27 2017 Return: Tue Aug 29 2017 Trip spans 3 days
Aeromexico
Aeromexico
SJO
2:08a
SEA
5:50a
27h 42m
2 stops
SEA
8:30a
SJO
5:50a
21h 20m
2 stops
* 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,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

San Jose
$462
Destination

Seattle
$462