US$145 Cheap Flights From Boston to Costa Rica
Easily compare flights from Boston to Costa Rica and find the cheapest tickets available!
Boston
San Jose
From US$235
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Boston
Liberia
From US$474
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Flying From Boston to Costa Rica: What You Need to Know
| Cheapest one-way flight price | US$145 |
|---|---|
| Cheapest return ticket price | US$294 |
| Cheapest month | September |
| Peak season for travel | July |
| Popular airline | United Airlines |
Compare multiple airlines at once to find the best flight deals from Boston to Costa Rica.
Airlines Flying From Boston to Costa Rica
United 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 US$145 for a one-way ticket and US$294 for a round trip.
- One way
- Round-trip
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Sun, Oct 25BOS|LIRBostonLiberia1 stop | Air CanadaFri, Oct 30LIR|BOSLiberiaBoston1 stop | Air CanadaUS$294 US$44033% off33% offUS$440 US$294-
Sat, Oct 24BOS|LIRBostonLiberia1 stop | Air Canada
Fri, Oct 30LIR|BOSLiberiaBoston1 stop | Air CanadaUS$302 US$44031% off31% offUS$440 US$302
-
Sat, Oct 31BOS|LIRBostonLiberia1 stop | Air Canada
Sat, Nov 7LIR|BOSLiberiaBoston1 stop | Air CanadaUS$341 US$44023% off23% offUS$440 US$341
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Sun, Oct 18BOS|LIRBostonLiberia1 stop | American Airlines
Fri, Oct 23LIR|BOSLiberiaBoston1 stop | American AirlinesUS$35120% offUS$440 US$351 -
Mon, Oct 5BOS|SJOBostonSan Jose1 stop | Copa Airlines
Mon, Oct 12SJO|BOSSan JoseBoston1 stop | Copa AirlinesUS$38413% offUS$440 US$384 -
Fri, Oct 23BOS|SJOBostonSan Jose1 stop | American Airlines
Mon, Oct 26SJO|BOSSan JoseBoston1 stop | American AirlinesUS$38612% offUS$440 US$386
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Fri, Oct 30BOS|SJOBostonSan Jose1 stop | American Airlines
Wed, Nov 4SJO|BOSSan JoseBoston1 stop | American AirlinesUS$38712% offUS$440 US$387
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Thu, Sep 24BOS|SJOBostonSan Jose1 stop | American Airlines
Mon, Sep 28SJO|BOSSan JoseBoston1 stop | American AirlinesUS$38712% offUS$440 US$387
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Wed, Oct 14BOS|SJOBostonSan Jose1 stop | American Airlines
Fri, Oct 16SJO|BOSSan JoseBoston1 stop | American AirlinesUS$38712% offUS$440 US$387
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Sat, Oct 24BOS|SJOBostonSan Jose1 stop | American Airlines
Fri, Oct 30SJO|BOSSan JoseBoston1 stop | American AirlinesUS$38712% offUS$440 US$387
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Sun, Sep 13BOS|SJOBostonSan Jose1 stop | Normal Airline
Tue, Sep 15SJO|BOSSan JoseBostonNonstop | Normal AirlineMore cheap flightsMore cheap flights
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Sun, Oct 25BOS|LIRBostonLiberia1 stop | Air CanadaUS$145 US$22235% off35% offUS$222 US$145
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Fri, Oct 23BOS|SJOBostonSan Jose1 stop | Frontier AirlinesUS$158 US$22228% off28% offUS$222 US$158 -
Wed, Oct 14BOS|SJOBostonSan Jose1 stop | American AirlinesUS$166 US$22225% off25% offUS$222 US$166
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Mon, Oct 26BOS|SJOBostonSan Jose1 stop | American AirlinesUS$17919% offUS$222 US$179
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Fri, Oct 30BOS|SJOBostonSan Jose1 stop | American AirlinesUS$18218% offUS$222 US$182
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Tue, Oct 27BOS|SJOBostonSan Jose1 stop | American AirlinesUS$18318% offUS$222 US$183
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Tue, Oct 20BOS|SJOBostonSan Jose1 stop | American AirlinesUS$18318% offUS$222 US$183
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Sat, Oct 31BOS|SJOBostonSan Jose1 stop | American AirlinesUS$19014% offUS$222 US$190
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Sun, Nov 8BOS|LIRBostonLiberia1 stop | Air CanadaUS$19114% offUS$222 US$191
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Wed, Nov 4BOS|SJOBostonSan Jose1 stop | American AirlinesUS$19512% offUS$222 US$195
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Sun, Sep 13BOS|SJOBostonSan Jose1 stop | Normal AirlineMore cheap flightsMore cheap 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 calender over the next 90 days, 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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