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
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 Boston Logan International to Costa Rica

(Round-trip)
Depart: Tue Jan 10 2017 Return: Tue Jan 17 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
BOS
6:10a
SJO
9:20p
15h 10m
1 stop
SJO
8:50a
BOS
6:15p
9h 25m
2 stops
Depart: Wed Feb 8 2017 Return: Tue Feb 14 2017 Trip spans 7 days
Major Airline
Major Airline
BOS
10:10p
SJO
12:40p
14h 30m
1 stop
SJO
10:08p
BOS
6:35a
8h 27m
1 stop
Depart: Mon Jan 23 2017 Return: Thu Feb 2 2017 Trip spans 11 days
JetBlue
JetBlue
BOS
1:50a
LIR
10:30a
8h 40m
1 stop
LIR
10:26a
BOS
1:30a
15h 04m
1 stop
Depart: Thu Dec 29 2016 Return: Wed Feb 8 2017 Trip spans 42 days
United
United
BOS
3:30p
LIR
9:00a
17h 30m
1 stop
LIR
9:05a
BOS
2:55a
17h 50m
1 stop
Depart: Sun Jan 22 2017 Return: Sat Jan 28 2017 Trip spans 7 days
Copa Airlines
Copa Airlines
BOS
3:10a
SJO
5:16a
26h 06m
1 stop
SJO
12:36a
BOS
11:35a
10h 59m
1 stop
Depart: Sat Dec 31 2016 Return: Mon Jan 30 2017 Trip spans 31 days
American Airlines
American Airlines
BOS
1:00a
LIR
4:12p
15h 12m
2 stops
LIR
10:45a
BOS
5:29a
18h 44m
1 stop
Depart: Sun Jan 1 2017 Return: Sat Jan 21 2017 Trip spans 21 days
Delta
Delta
BOS
2:15p
LIR
9:50a
19h 35m
1 stop
LIR
9:48a
BOS
5:59p
32h 11m
1 stop
Depart: Mon Apr 17 2017 Return: Thu Apr 20 2017 Trip spans 4 days
Air Canada
Air Canada
BOS
8:15a
SJO
6:15p
10h 00m
1 stop
SJO
4:15a
BOS
4:25p
12h 10m
1 stop
Depart: Wed Jan 25 2017 Return: Wed Feb 1 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
BOS
12:00a
SJO
8:50a
8h 50m
2 stops
SJO
9:12p
BOS
4:10a
6h 58m
1 stop
Depart: Thu Feb 2 2017 Return: Thu Feb 9 2017 Trip spans 8 days
Major Airline
Major Airline
BOS
1:10a
SJO
4:20p
15h 10m
1 stop
SJO
4:12p
BOS
7:59a
15h 47m
1 stop
Depart: Mon Jan 30 2017 Return: Fri Feb 3 2017 Trip spans 5 days
JetBlue
JetBlue
BOS
1:50a
LIR
10:30a
8h 40m
1 stop
LIR
10:26a
BOS
6:05p
7h 39m
1 stop
Depart: Thu Feb 9 2017 Return: Sat Feb 11 2017 Trip spans 3 days
Spirit Airlines
Spirit Airlines
BOS
6:10a
SJO
9:22p
15h 12m
1 stop
SJO
9:12p
BOS
4:10a
6h 58m
1 stop
Depart: Mon Jan 2 2017 Return: Mon Jan 9 2017 Trip spans 8 days
United
United
BOS
3:30p
LIR
9:00a
17h 30m
1 stop
LIR
9:05a
BOS
2:15a
17h 10m
1 stop
Depart: Thu Mar 16 2017 Return: Mon Mar 20 2017 Trip spans 5 days
Copa Airlines
Copa Airlines
BOS
5:41a
SJO
1:50p
8h 09m
1 stop
SJO
11:21a
BOS
12:25p
25h 04m
1 stop
Depart: Tue Feb 7 2017 Return: Thu Feb 9 2017 Trip spans 3 days
Major Airline
Major Airline
BOS
10:10p
SJO
9:58a
11h 48m
1 stop
SJO
10:08p
BOS
6:35a
8h 27m
1 stop
Depart: Fri Mar 24 2017 Return: Mon Apr 3 2017 Trip spans 11 days
JetBlue
JetBlue
BOS
1:40a
LIR
10:59a
9h 19m
1 stop
LIR
9:55a
BOS
6:18p
8h 23m
1 stop
Depart: Sat Feb 11 2017 Return: Wed Feb 15 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
BOS
6:10a
SJO
9:22p
15h 12m
1 stop
SJO
9:12p
BOS
4:10a
6h 58m
1 stop
Depart: Tue Jan 3 2017 Return: Mon Jan 9 2017 Trip spans 7 days
United
United
BOS
12:30a
LIR
9:00a
8h 30m
1 stop
LIR
9:05a
BOS
2:55a
17h 50m
1 stop
Depart: Sun Mar 19 2017 Return: Thu Mar 23 2017 Trip spans 5 days
Delta
Delta
BOS
5:45a
SJO
5:40p
11h 55m
1 stop
SJO
10:09a
BOS
6:52p
8h 43m
1 stop
Depart: Tue Mar 7 2017 Return: Sat Mar 11 2017 Trip spans 5 days
Copa Airlines
Copa Airlines
BOS
3:41a
SJO
11:50a
8h 09m
1 stop
SJO
11:33p
BOS
12:25p
11h 52m
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

Boston
$279
Destination

Liberia
$353
San Jose
$279