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

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 Seattle/Tacoma Intl to Costa Rica

(Round-trip)
Depart: Mon Mar 20 2017 Return: Mon Mar 27 2017 Trip spans 8 days
Major Airline
Major Airline
SEA
9:00p
LIR
6:08a
9h 08m
1 stop
LIR
11:35p
SEA
10:20a
10h 45m
1 stop
Depart: Thu Jan 5 2017 Return: Tue Jan 17 2017 Trip spans 13 days
American Airlines
American Airlines
SEA
6:50p
LIR
8:05a
13h 15m
1 stop
LIR
9:29a
SEA
9:48p
12h 19m
1 stop
Depart: Fri Jan 6 2017 Return: Sat Jan 14 2017 Trip spans 9 days
United
United
SEA
2:41a
LIR
2:05p
11h 24m
1 stop
LIR
2:50a
SEA
2:53p
12h 03m
1 stop
Depart: Mon Jan 16 2017 Return: Sat Jan 28 2017 Trip spans 13 days
Delta
Delta
SEA
2:30p
LIR
12:20a
9h 50m
1 stop
LIR
5:24a
SEA
6:06p
12h 42m
1 stop
Depart: Thu Jan 26 2017 Return: Tue Feb 7 2017 Trip spans 13 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
LIR
8:56a
8h 56m
1 stop
LIR
12:00p
SEA
11:30p
11h 30m
1 stop
Depart: Wed Jan 11 2017 Return: Wed Jan 25 2017 Trip spans 15 days
Avianca
Avianca
SEA
5:30p
SJO
2:45p
21h 15m
2 stops
SJO
12:40a
SEA
3:01p
14h 21m
2 stops
Depart: Mon Jan 9 2017 Return: Wed Jan 18 2017 Trip spans 10 days
American Airlines
American Airlines
SEA
6:20p
LIR
6:34a
12h 14m
1 stop
LIR
9:29a
SEA
9:48p
12h 19m
1 stop
Depart: Sat Jan 14 2017 Return: Sat Jan 21 2017 Trip spans 8 days
Major Airline
Major Airline
SEA
7:00p
LIR
3:56a
8h 56m
1 stop
LIR
12:24a
SEA
1:06p
12h 42m
1 stop
Depart: Tue Jan 17 2017 Return: Sat Jan 28 2017 Trip spans 12 days
United
United
SEA
6:20p
LIR
5:30a
11h 10m
1 stop
LIR
2:50a
SEA
2:53p
12h 03m
1 stop
Depart: Thu Mar 16 2017 Return: Mon Mar 27 2017 Trip spans 12 days
Delta
Delta
SEA
2:15a
LIR
2:53p
12h 38m
1 stop
LIR
9:45a
SEA
5:54a
20h 09m
1 stop
Depart: Mon Feb 13 2017 Return: Thu Feb 23 2017 Trip spans 11 days
Alaska Airlines
Alaska Airlines
SEA
1:55p
LIR
8:58a
19h 03m
1 stop
LIR
12:00p
SEA
9:20a
21h 20m
2 stops
Depart: Fri Jan 13 2017 Return: Wed Jan 18 2017 Trip spans 6 days
American Airlines
American Airlines
SEA
6:50p
LIR
6:23a
11h 33m
1 stop
LIR
9:29a
SEA
9:48p
12h 19m
1 stop
Depart: Tue Jan 24 2017 Return: Sun Jan 29 2017 Trip spans 6 days
United
United
SEA
6:20p
LIR
5:30a
11h 10m
1 stop
LIR
8:35a
SEA
6:57p
10h 22m
1 stop
Depart: Mon Feb 27 2017 Return: Mon Mar 6 2017 Trip spans 8 days
Major Airline
Major Airline
SEA
10:10p
LIR
2:10a
28h 00m
1 stop
LIR
3:35a
SEA
4:40a
25h 05m
1 stop
Depart: Wed May 17 2017 Return: Thu May 25 2017 Trip spans 9 days
Delta
Delta
SEA
11:00a
LIR
1:25a
14h 25m
1 stop
LIR
3:45a
SEA
2:20p
10h 35m
1 stop
Depart: Sun Jan 15 2017 Return: Fri Jan 20 2017 Trip spans 6 days
American Airlines
American Airlines
SEA
5:10p
LIR
6:34a
13h 24m
1 stop
LIR
10:45a
SEA
9:48p
11h 03m
1 stop
Depart: Tue Feb 28 2017 Return: Mon Mar 6 2017 Trip spans 7 days
United
United
SEA
3:24a
LIR
2:05p
10h 41m
1 stop
LIR
2:50a
SEA
6:15p
15h 25m
1 stop
Depart: Wed Mar 29 2017 Return: Wed Apr 5 2017 Trip spans 8 days
Major Airline
Major Airline
SEA
2:20a
LIR
9:09p
18h 49m
1 stop
LIR
11:45p
SEA
11:48a
12h 03m
1 stop
Depart: Fri Mar 17 2017 Return: Mon Mar 27 2017 Trip spans 11 days
Delta
Delta
SEA
7:00a
LIR
2:53p
31h 53m
1 stop
LIR
9:45a
SEA
5:54a
20h 09m
1 stop
Depart: Wed Jan 18 2017 Return: Sat Jan 28 2017 Trip spans 11 days
American Airlines
American Airlines
SEA
6:50p
LIR
7:55a
13h 05m
1 stop
LIR
9:27a
SEA
7:56p
10h 29m
1 stop
* 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.

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Airports
Origin

Seattle
$376
Destination

Liberia
$376
San Jose
$519