Cheap $145 Flights From Boston to Costa Rica
Easily compare flights from Boston to Costa Rica and find the cheapest tickets available!
Boston
San Jose
From $299
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Boston
Liberia
From $363
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Flying From Boston to Costa Rica: What You Need to Know
| Cheapest one-way flight price | $145 |
|---|---|
| Cheapest round-trip ticket price | $295 |
| Off-season for travel | October |
| Peak season for travel | January |
| Popular airline | American Airlines |
| Cheapest month | November |
Compare multiple airlines at once to find the best flight deals from Boston to Costa Rica.
Airlines Flying From Boston to Costa Rica
American Airlines 
Copa Airlines Search Flights From Boston to Costa Rica
Easily compare flights from Boston to Costa Rica and find the cheapest tickets available!
Find the Cheapest Flights to Costa Rica From Boston
Looking for cheap flights from Boston to Costa Rica? Check out prices for the next 90 days, starting at just $145 for a one-way ticket and $295 for a round trip.
- One way
- Round-trip
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- Cheapest nonstop
Sat, Oct 31BOS|LIRBostonLiberiaNonstop | Jetblue AirwaysSat, Nov 7LIR|BOSLiberiaBostonNonstop | Jetblue Airways$481 $5299% off9% off$529 $481 -
Sun, Oct 25BOS|LIRBostonLiberia1 stop | Air Canada
Fri, Oct 30LIR|BOSLiberiaBoston1 stop | Air Canada$295 $52944% off44% off$529 $295 -
Sat, Oct 24BOS|LIRBostonLiberia1 stop | Air Canada
Fri, Oct 30LIR|BOSLiberiaBoston1 stop | Air Canada$302 $52943% off43% off$529 $302
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Tue, Nov 17BOS|LIRBostonLiberia1 stop | Air Canada
Tue, Nov 24LIR|BOSLiberiaBoston1 stop | Air Canada$31041% off$529 $310
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Thu, Nov 12BOS|LIRBostonLiberia1 stop | Air Canada
Thu, Nov 19LIR|BOSLiberiaBoston1 stop | Air Canada$31141% off$529 $311
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Fri, Nov 13BOS|LIRBostonLiberia1 stop | Air Canada
Fri, Nov 20LIR|BOSLiberiaBoston1 stop | Air Canada$32239% off$529 $322
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Sat, Oct 31BOS|LIRBostonLiberia1 stop | Air Canada
Sat, Nov 7LIR|BOSLiberiaBoston1 stop | Air Canada$33537% off$529 $335
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Mon, Nov 16BOS|LIRBostonLiberia1 stop | Air Canada
Mon, Nov 23LIR|BOSLiberiaBoston1 stop | Air Canada$34235% off$529 $342
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Sun, Oct 18BOS|LIRBostonLiberia1 stop | American Airlines
Fri, Oct 23LIR|BOSLiberiaBoston1 stop | American Airlines$35134% off$529 $351 -
Wed, Nov 25BOS|LIRBostonLiberia1 stop | Air Canada
Tue, Dec 1LIR|BOSLiberiaBoston1 stop | Air Canada$35832% off$529 $358
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Wed, Oct 28BOS|LIRBostonLiberia1 stop | Air Canada
Wed, Nov 4LIR|BOSLiberiaBoston1 stop | Air Canada$36830% off$529 $368
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Sun, Oct 11BOS|SJOBostonSan Jose1 stop | Normal Airline
Tue, Oct 13SJO|BOSSan JoseBostonNonstop | Normal AirlineFind more flightsFind more flights
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Sun, Oct 25BOS|LIRBostonLiberia1 stop | Air Canada$145 $52472% off72% off$524 $145
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Sat, Dec 5BOS|LIRBostonLiberia1 stop | Air Canada$160 $52469% off69% off$524 $160
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Sat, Nov 28BOS|LIRBostonLiberia1 stop | Air Canada$165 $52469% off69% off$524 $165
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Wed, Nov 25BOS|LIRBostonLiberia1 stop | Air Canada$17267% off$524 $172
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Sun, Nov 8BOS|SJOBostonSan Jose1 stop | American Airlines$17666% off$524 $176
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Sat, Dec 5BOS|SJOBostonSan Jose1 stop | American Airlines$17966% off$524 $179
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Fri, Oct 30BOS|SJOBostonSan Jose1 stop | American Airlines$18265% off$524 $182
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Tue, Oct 27BOS|SJOBostonSan Jose1 stop | American Airlines$18465% off$524 $184
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Sun, Nov 15BOS|SJOBostonSan Jose1 stop | Delta Air Lines$19064% off$524 $190 -
Wed, Oct 14BOS|SJOBostonSan Jose1 stop | American Airlines$4769% off$524 $476
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Sun, Oct 11BOS|SJOBostonSan Jose1 stop | Normal AirlineFind more flightsFind more flights
Displayed flight fares from Boston to Costa Rica are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.
FAQs: Flights From Boston to Costa Rica
When is it the cheapest time to fly from Boston to Costa Rica?
According to our flights calendar over the next 90 days, it seems the cheapest date is on 2026-10-25 for one-way flights.What is the cheapest airline that flies to Costa Rica from Boston?
The cheapest airline flying to Costa Rica from Boston is Air Canada serving route from Boston to San Jose.Where can I fly to Costa Rica from Boston?
There are direct flights from Boston to Costa Rica. San Jose, and Liberia are all popular destinations in Costa Rica.
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