Find cheap flights from Costa Rica to Washington

Find cheap flights from Costa Rica to Washington

Round-trip
Economy
Boston (BOS)
Washington
Thu 8/13
Thu 8/20
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Washington

Good to know

Low season

January Best time to beat the crowds with an average 9% drop in price.

High season

December Most popular time to fly with an average 18% increase in price.

Average price of a round-trip

$488 (avg. price over the last 2 weeks)

Good deal for a round-trip

$310 or less

FAQs for booking Costa Rica to Washington flights

How does KAYAK find such low prices on flights from Costa Rica to Washington?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Costa Rica to Washington?

What is the Hacker Fare option on flights from Costa Rica to Washington?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Costa Rica to Washington?

Top airlines flying from Costa Rica to Washington

Scores according to KAYAK customer reviews

8.7
Korean Air
Overall score based on 4,927 reviews
8.9
Boarding
8.6
Comfort
9.1
Crew
8.6
Entertainment
8.5
Food
Airline reviews
Read more about Korean Air

Book cheap flights from Costa Rica to Washington

Recent round-trip flight deals

8/12
Wed
3 stops
Multiple Airlines
25h 09m
SJO - SEA
9/15
Tue
2 stops
Multiple Airlines
25h 10m
SEA - SJO
8/12
Wed
2 stops
Spirit Airlines
48h 56m
SJO - SEA
9/14
Mon
3 stops
Spirit Airlines
21h 55m
SEA - SJO
10/26
Mon
1 stop
Aeromexico
32h 45m
SJO - SEA
10/30
Fri
1 stop
Aeromexico
12h 30m
SEA - SJO
8/12
Wed
3 stops
Multiple Airlines
25h 09m
SJO - SEA
9/14
Mon
3 stops
Multiple Airlines
21h 55m
SEA - SJO
8/15
Sat
3 stops
Multiple Airlines
30h 49m
SJO - SEA
8/22
Sat
3 stops
Multiple Airlines
20h 59m
SEA - SJO
8/15
Sat
3 stops
Spirit Airlines
30h 49m
SJO - SEA
8/22
Sat
3 stops
Spirit Airlines
20h 50m
SEA - SJO
10/25
Sun
2 stops
Asiana Airlines
12h 31m
LIR - SEA
1/26
Tue
1 stop
Asiana Airlines
13h 00m
SEA - LIR
8/17
Mon
3 stops
Multiple Airlines
25h 01m
SJO - SEA
8/24
Mon
3 stops
Multiple Airlines
20h 59m
SEA - SJO
10/25
Sun
1 stop
Delta
11h 35m
LIR - SEA
1/26
Tue
2 stops
Delta
15h 57m
SEA - LIR
10/25
Sun
2 stops
Korean Air
22h 13m
LIR - SEA
1/26
Tue
1 stop
Korean Air
22h 57m
SEA - LIR
9/9
Wed
2 stops
Spirit Airlines
34h 12m
SJO - SEA
9/15
Tue
2 stops
Spirit Airlines
25h 10m
SEA - SJO
9/10
Thu
2 stops
Multiple Airlines
22h 36m
SJO - SEA
9/15
Tue
2 stops
Multiple Airlines
25h 10m
SEA - SJO
9/3
Thu
3 stops
Spirit Airlines
30h 49m
SJO - SEA
9/10
Thu
2 stops
Spirit Airlines
34h 46m
SEA - SJO
9/9
Wed
2 stops
Multiple Airlines
34h 09m
SJO - SEA
9/15
Tue
2 stops
Multiple Airlines
25h 10m
SEA - SJO
10/25
Sun
1 stop
Brussels Airlines
34h 03m
LIR - SEA
1/26
Tue
1 stop
Brussels Airlines
26h 40m
SEA - LIR
9/3
Thu
3 stops
Multiple Airlines
32h 33m
SJO - SEA
9/10
Thu
3 stops
Multiple Airlines
24h 22m
SEA - SJO
8/5
Wed
2 stops
Multiple Airlines
56h 33m
SJO - SEA
8/11
Tue
3 stops
Multiple Airlines
20h 59m
SEA - SJO
8/27
Thu
3 stops
Spirit Airlines
24h 56m
SJO - SEA
9/3
Thu
2 stops
Spirit Airlines
39h 01m
SEA - SJO
8/20
Thu
3 stops
Multiple Airlines
32h 33m
SJO - SEA
8/27
Thu
2 stops
Multiple Airlines
39h 01m
SEA - SJO
9/9
Wed
2 stops
Spirit Airlines
24h 11m
SJO - SEA
9/14
Mon
2 stops
Spirit Airlines
21h 55m
SEA - SJO
Show more results

Recent one-way flight deals

9/15
Tue
2 stops
Spirit Airlines
22h 47m
SJO - SEA
9/13
Sun
3 stops
Multiple Airlines
28h 18m
SJO - SEA
10/1
Thu
2 stops
Delta
12h 03m
SJO - GEG
10/1
Thu
1 stop
British Airways
20h 48m
SJO - GEG
10/1
Thu
2 stops
Korean Air
24h 37m
SJO - GEG
9/15
Tue
3 stops
Multiple Airlines
26h 29m
SJO - SEA
9/13
Sun
2 stops
Spirit Airlines
21h 00m
SJO - SEA
9/14
Mon
2 stops
Air New Zealand
21h 45m
SJO - SEA
9/14
Mon
1 stop
Aeromexico
11h 16m
SJO - SEA
9/14
Mon
2 stops
China Eastern
24h 51m
SJO - SEA
9/14
Mon
2 stops
Asiana Airlines
20h 21m
SJO - SEA
9/14
Mon
3 stops
Multiple Airlines
28h 18m
SJO - SEA
9/14
Mon
2 stops
Spirit Airlines
22h 47m
SJO - SEA
10/1
Thu
3 stops
Multiple Airlines
30h 33m
SJO - GEG
10/1
Thu
2 stops
Delta
17h 13m
SJO - GEG
9/1
Tue
2 stops
GOL
27h 15m
SJO - SEA
9/15
Tue
3 stops
Multiple Airlines
43h 22m
SJO - SEA
9/1
Tue
1 stop
EVA Air
16h 13m
SJO - SEA
Show more results
*
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,
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