Find Cheap Flights from Seattle 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
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 to Costa Rica

(Round-trip)
Depart: Wed Aug 23 2017 Return: Tue Aug 29 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
SJO
9:10a
9h 10m
1 stop
SJO
12:00a
SEA
5:00a
29h 00m
2 stops
Depart: Fri Oct 13 2017 Return: Sat Oct 21 2017 Trip spans 9 days
Major Airline
Major Airline
SEA
12:00a
LIR
1:11p
13h 11m
2 stops
LIR
12:00a
SEA
2:58p
14h 58m
2 stops
Depart: Wed Aug 30 2017 Return: Fri Sep 8 2017 Trip spans 10 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
SJO
9:14a
9h 14m
1 stop
SJO
12:00a
SEA
11:00a
11h 00m
1 stop
Depart: Tue Sep 26 2017 Return: Tue Oct 3 2017 Trip spans 8 days
Delta
Delta
SEA
12:00a
LIR
7:53p
19h 53m
1 stop
LIR
12:00a
SEA
11:34a
11h 34m
1 stop
Depart: Mon Nov 6 2017 Return: Sun Nov 12 2017 Trip spans 7 days
American Airlines
American Airlines
SEA
12:00a
LIR
12:06p
12h 06m
1 stop
LIR
12:00a
SEA
12:28a
24h 28m
1 stop
Depart: Wed Nov 22 2017 Return: Fri Dec 1 2017 Trip spans 10 days
United
United
SEA
12:00a
LIR
9:10p
45h 10m
2 stops
LIR
12:00a
SEA
12:12p
12h 12m
2 stops
Depart: Thu Aug 31 2017 Return: Sun Sep 10 2017 Trip spans 11 days
Avianca
Avianca
SEA
12:00a
SJO
1:55p
13h 55m
2 stops
SJO
12:00a
SEA
1:12p
13h 12m
2 stops
Depart: Wed Aug 9 2017 Return: Sat Aug 12 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
SEA
12:00a
SJO
9:57a
33h 57m
3 stops
SJO
12:00a
SEA
11:31p
23h 31m
3 stops
Depart: Thu Aug 3 2017 Return: Sun Aug 13 2017 Trip spans 11 days
Aeromexico
Aeromexico
SEA
12:00a
SJO
10:35p
22h 35m
2 stops
SJO
12:00a
SEA
3:46a
27h 46m
2 stops
Depart: Fri Sep 22 2017 Return: Sun Oct 1 2017 Trip spans 10 days
Major Airline
Major Airline
SEA
12:00a
LIR
1:03p
13h 03m
1 stop
LIR
12:00a
SEA
6:29p
18h 29m
1 stop
Depart: Fri Sep 15 2017 Return: Fri Sep 22 2017 Trip spans 8 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
SJO
9:14a
9h 14m
1 stop
SJO
12:00a
SEA
11:00a
11h 00m
1 stop
Depart: Sat Sep 30 2017 Return: Sat Oct 7 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
LIR
4:55p
16h 55m
1 stop
LIR
12:00a
SEA
7:05a
31h 05m
2 stops
Depart: Mon Dec 25 2017 Return: Sun Dec 31 2017 Trip spans 7 days
$1153
Select
Sun Country Air
Sun Country Air
SEA
12:00a
LIR
5:35p
17h 35m
1 stop
LIR
12:00a
SEA
6:25p
18h 25m
1 stop
Depart: Sat Nov 11 2017 Return: Sat Nov 18 2017 Trip spans 8 days
Delta
Delta
SEA
12:00a
LIR
12:23p
12h 23m
1 stop
LIR
12:00a
SEA
1:05p
13h 05m
1 stop
Depart: Fri Oct 13 2017 Return: Sat Oct 21 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
SJO
5:15p
17h 15m
1 stop
SJO
12:00a
SEA
11:05a
11h 05m
1 stop
Depart: Wed Aug 30 2017 Return: Thu Sep 7 2017 Trip spans 9 days
Avianca
Avianca
SEA
12:00a
SJO
1:42p
13h 42m
2 stops
SJO
12:00a
SEA
1:12p
13h 12m
2 stops
Depart: Fri Sep 22 2017 Return: Thu Sep 28 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
LIR
3:43p
15h 43m
2 stops
LIR
12:00a
SEA
10:55a
10h 55m
1 stop
Depart: Fri Nov 24 2017 Return: Fri Dec 1 2017 Trip spans 8 days
Delta
Delta
SEA
12:00a
LIR
4:50p
16h 50m
1 stop
LIR
12:00a
SEA
11:34a
11h 34m
1 stop
Depart: Fri Sep 8 2017 Return: Mon Sep 11 2017 Trip spans 4 days
Major Airline
Major Airline
SEA
12:00a
LIR
1:11p
13h 11m
1 stop
LIR
12:00a
SEA
2:53a
26h 53m
1 stop
Depart: Thu Aug 31 2017 Return: Thu Sep 7 2017 Trip spans 8 days
Avianca
Avianca
SEA
12:00a
SJO
1:55p
13h 55m
2 stops
SJO
12:00a
SEA
1:12p
13h 12m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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
$545
Destination

Liberia
$550
San Jose
$545