Explore Air Canada flights from Boston to Costa Rica from USD 190*
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*Fares displayed have been collected within the last 48 hours and may no longer be available at the time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.
Best fares between Boston and Costa Rica
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Boston (BOS)to
San José, Costa Rica (SJO) Oct 24, 2026
From
USD 286
One-way
Economy
Boston (BOS)to
San José, Costa Rica (SJO) Oct 26, 2026
From
USD 286
One-way
Economy
Boston (BOS)to
Liberia, Costa Rica (LIR) Oct 25, 2026
From
USD 190
One-way
Economy
Boston (BOS)to
Liberia, Costa Rica (LIR) Oct 26, 2026
From
USD 190
One-way
Economy
*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.
Find low fares between Boston and Costa Rica
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No popular fares were found for the options selected. Try updating your selection.
No popular fares were found for the options selected. Try updating your selection.*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.