Find Deals on Flights from Boston Logan International 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 Boston Logan International to Costa Rica

(Round-trip)
Depart: Thu May 11 2017 Return: Tue May 16 2017 Trip spans 6 days
Spirit Airlines
Spirit Airlines
BOS
1:00a
SJO
9:32a
8h 32m
2 stops
SJO
8:35a
BOS
6:40p
10h 05m
2 stops
Depart: Sun Mar 19 2017 Return: Tue Mar 28 2017 Trip spans 10 days
Copa Airlines
Copa Airlines
BOS
5:36a
SJO
5:35p
11h 59m
1 stop
SJO
8:46a
BOS
1:15p
28h 29m
1 stop
Depart: Mon Apr 10 2017 Return: Fri Apr 14 2017 Trip spans 5 days
Major Airline
Major Airline
BOS
1:36a
SJO
5:46a
28h 10m
1 stop
SJO
3:30a
BOS
9:15a
29h 45m
1 stop
Depart: Tue May 16 2017 Return: Thu May 18 2017 Trip spans 3 days
JetBlue
JetBlue
BOS
5:00p
SJO
9:31a
16h 31m
1 stop
SJO
8:27a
BOS
6:23p
9h 56m
1 stop
Depart: Wed May 10 2017 Return: Wed May 17 2017 Trip spans 8 days
Delta
Delta
BOS
2:00a
SJO
9:46a
7h 46m
1 stop
SJO
9:00a
BOS
5:47p
8h 47m
1 stop
Depart: Fri Aug 25 2017 Return: Sat Sep 2 2017 Trip spans 9 days
United
United
BOS
3:30a
LIR
4:20p
12h 50m
1 stop
LIR
11:00a
BOS
6:15a
19h 15m
1 stop
Depart: Fri Jul 14 2017 Return: Sat Jul 22 2017 Trip spans 9 days
American Airlines
American Airlines
BOS
8:50a
LIR
11:35a
26h 45m
1 stop
LIR
10:40a
BOS
5:54a
19h 14m
1 stop
Depart: Thu Jun 15 2017 Return: Thu Jun 22 2017 Trip spans 8 days
Air Canada
Air Canada
BOS
2:00a
SJO
2:45p
12h 45m
1 stop
SJO
2:05p
BOS
8:26a
18h 21m
1 stop
Depart: Tue Mar 21 2017 Return: Tue Mar 28 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
BOS
7:14a
SJO
10:22p
15h 08m
1 stop
SJO
8:50a
BOS
6:31p
9h 41m
2 stops
Depart: Thu Mar 23 2017 Return: Tue Mar 28 2017 Trip spans 6 days
Copa Airlines
Copa Airlines
BOS
5:36a
SJO
2:31p
8h 55m
1 stop
SJO
11:19a
BOS
1:15p
25h 56m
1 stop
Depart: Wed Apr 26 2017 Return: Wed May 3 2017 Trip spans 8 days
Major Airline
Major Airline
BOS
11:54p
SJO
7:23a
7h 29m
1 stop
SJO
4:27a
BOS
6:52a
26h 25m
1 stop
Depart: Wed May 24 2017 Return: Wed May 31 2017 Trip spans 8 days
JetBlue
JetBlue
BOS
5:00p
SJO
9:31a
16h 31m
1 stop
SJO
8:27a
BOS
6:23p
9h 56m
1 stop
Depart: Fri May 12 2017 Return: Wed May 17 2017 Trip spans 6 days
Delta
Delta
BOS
2:00a
SJO
9:46a
7h 46m
1 stop
SJO
9:00a
BOS
5:47p
8h 47m
1 stop
Depart: Thu Apr 20 2017 Return: Tue Apr 25 2017 Trip spans 6 days
Spirit Airlines
Spirit Airlines
BOS
4:30p
SJO
9:50a
17h 20m
1 stop
SJO
8:50a
BOS
4:14a
19h 24m
1 stop
Depart: Fri Mar 24 2017 Return: Wed Mar 29 2017 Trip spans 6 days
Copa Airlines
Copa Airlines
BOS
5:36a
SJO
5:35p
11h 59m
1 stop
SJO
12:32a
BOS
1:15p
12h 43m
1 stop
Depart: Sun Apr 9 2017 Return: Fri Apr 14 2017 Trip spans 6 days
Major Airline
Major Airline
BOS
11:10a
SJO
5:35a
18h 25m
1 stop
SJO
6:20a
BOS
2:43p
8h 23m
1 stop
Depart: Tue Aug 29 2017 Return: Tue Sep 12 2017 Trip spans 15 days
Delta
Delta
BOS
4:30a
SJO
5:40p
13h 10m
1 stop
SJO
9:00a
BOS
6:55p
9h 55m
1 stop
Depart: Sat Jul 8 2017 Return: Sat Jul 22 2017 Trip spans 15 days
American Airlines
American Airlines
BOS
12:55p
LIR
9:51a
20h 56m
1 stop
LIR
10:40a
BOS
5:54a
19h 14m
1 stop
Depart: Tue Mar 14 2017 Return: Wed Mar 22 2017 Trip spans 9 days
Spirit Airlines
Spirit Airlines
BOS
4:30p
SJO
9:50a
17h 20m
1 stop
SJO
9:12p
BOS
4:14a
7h 02m
1 stop
Depart: Mon Mar 27 2017 Return: Fri Mar 31 2017 Trip spans 5 days
Copa Airlines
Copa Airlines
BOS
5:36a
SJO
2:31p
8h 55m
1 stop
SJO
4:27a
BOS
1:15p
8h 48m
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:

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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

Boston
$350
Destination

Liberia
$431
San Jose
$350