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Boston, United States to Liberia, Costa Rica for only $290 USD roundtrip

Cheap flights from Boston, United States to Liberia, Costa Rica for only $290 USD roundtrip.

October 30, 2026


BOOK ON KIWI ⚠️ Heads up: Deals typically expire within 2 to 3 days after they are sent. Prices may also increase slightly after 30 minutes, so act quickly!

Alternative Checkout Options
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Deal Details
From:
🇺🇸 Boston (BOS), United States
To:
🇨🇷 Liberia (LIR), Costa Rica
Travel Between:
Class:
Price:
$290 Save $145
Normal Price:
$435
Airlines:
Expiration Details:
These fares will last no more than 1-2 days and typically go up within 30 minutes.
How To Book
Note: To find the cheapest available fares, click the 'Pick a date' button. You'll be redirected to Kiwi.com with the flight dates pre-filled and the cabin class set to Economy by default. You can change it to your preferred class at any time.
Options
Baggage allowance:
Intermediate stops:
Business Class:
No
Round-trip:
Yes
Non-stop:
No

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