$182+ Cheap flights from Boston (BOS) to Costa Rica
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SJO
Nov 12 — Nov 191
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Costa Rica with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Boston to Costa RicaExplore the most affordable flight options available from Boston to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
Explore the most affordable flight options available from Boston to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
This Mytrip deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:40 am -
2 stops30h 26m
Tue 11/35:53 pm -
1 stop14h 52m
Deal found 10/10![Multiple Airlines logo]()
$385
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:00 am -
1 stop15h 50m
Fri 11/202:07 pm -
1 stop18h 15m
Deal found 10/9![American Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:00 pm -
2 stops21h 07m
Sat 12/56:07 am -
2 stops11h 21m
Deal found 10/9![American Airlines logo]()
$391
This Copa Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:50 pm -
1 stop19h 17m
Tue 11/176:10 pm -
1 stop26h 51m
Deal found 10/9![Copa Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:46 pm -
1 stop21h 14m
Wed 12/161:42 pm -
1 stop18h 39m
Deal found 10/9![American Airlines logo]()
$397
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:46 pm -
1 stop21h 14m
Tue 12/153:54 pm -
2 stops15h 52m
Deal found 10/9![American Airlines logo]()
$401
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:05 pm -
1 stop21h 47m
Sun 12/133:54 pm -
1 stop17h 21m
Deal found 10/9![American Airlines logo]()
$402
This Mytrip deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:40 am -
2 stops16h 16m
Tue 11/35:53 pm -
1 stop14h 52m
Deal found 10/8![Multiple Airlines logo]()
$406
This American Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:58 pm -
1 stop20h 48m
Mon 11/162:46 pm -
1 stop20h 05m
Deal found 10/8![American Airlines logo]()
$407
This Copa Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:50 pm -
1 stop17h 12m
Sun 11/156:10 pm -
1 stop26h 51m
Deal found 10/8![Copa Airlines logo]()
$409
This Copa Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:43 pm -
1 stop19h 21m
Mon 12/74:00 am -
1 stop17h 02m
Deal found 10/12![Copa Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:09 am -
2 stops13h 41m
Wed 11/43:54 pm -
2 stops16h 10m
Deal found 10/8![American Airlines logo]()
$411
Best flights from Boston to Costa RicaDiscover carefully curated flight deals from Boston to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
Discover carefully curated flight deals from Boston to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
This Copa Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:50 pm -
1 stop18h 29m
Wed 11/1810:03 am -
1 stop10h 58m
Deal found 10/8![Copa Airlines logo]()
$392
This JetBlue deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/285:15 am -
1 stop9h 45m
Sat 12/1912:50 pm -
1 stop9h 57m
Deal found 10/13![JetBlue logo]()
$471
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/47:15 am -
2 stops12h 01m
Thu 2/2511:28 pm -
1 stop8h 18m
Deal found 10/10![United Airlines logo]()
$505
This Copa Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:50 pm -
1 stop17h 12m
Sun 11/225:37 am -
1 stop15h 24m
Deal found 10/11![Copa Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/237:15 pm -
2 stops26h 24m
Fri 2/51:15 am -
2 stops15h 20m
Deal found 10/12![United Airlines logo]()
$521
This Copa Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:34 am -
1 stop24h 31m
Wed 12/94:00 am -
1 stop17h 02m
Deal found 10/9![Copa Airlines logo]()
$476
This JetBlue deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:25 am -
1 stop8h 55m
Sat 12/194:45 pm -
Nonstop5h 25m
Deal found 10/10![JetBlue logo]()
$568
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:36 pm -
2 stops17h 49m
Wed 11/1111:28 pm -
2 stops23h 07m
Deal found 10/12![United Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:36 pm -
1 stop19h 12m
Sun 11/812:35 pm -
2 stops19h 48m
Deal found 10/11![United Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:29 pm -
2 stops22h 56m
Tue 11/38:45 am -
2 stops12h 14m
Deal found 10/12![United Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:17 pm -
1 stop19h 08m
Fri 11/68:45 am -
2 stops15h 01m
Deal found 10/8![United Airlines logo]()
$551
This JetBlue deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/256:00 am -
1 stop7h 55m
Thu 3/112:15 pm -
1 stop8h 20m
Deal found 10/11![JetBlue logo]()
$756
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:17 pm -
1 stop19h 08m
Thu 11/511:28 pm -
1 stop8h 49m
Deal found 10/8![United Airlines logo]()
$559
This JetBlue deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/47:52 am -
Nonstop5h 53m
Sat 1/94:30 pm -
1 stop14h 11m
Deal found 10/12![JetBlue logo]()
$803
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:30 am -
2 stops13h 07m
Sat 11/72:20 pm -
2 stops18h 14m
Deal found 10/8![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/99:25 am -
1 stop10h 12m
Sat 1/162:06 pm -
1 stop19h 36m
Deal found 10/11![United Airlines logo]()
$587
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/35:45 am -
1 stop10h 35m
Mon 1/112:06 pm -
2 stops23h 19m
Deal found 10/12![United Airlines logo]()
$610
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:05 pm -
2 stops18h 51m
Sun 11/152:20 pm -
2 stops24h 34m
Deal found 10/9![United Airlines logo]()
$636
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:55 am -
2 stops24h 59m
Wed 11/255:20 pm -
2 stops19h 55m
Deal found 10/8![United Airlines logo]()
$636
This United Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/17:35 pm -
2 stops18h 35m
Sun 3/72:01 pm -
2 stops27h 48m
Deal found 10/11![United Airlines logo]()
$672
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/86:39 pm -
2 stops19h 31m
Tue 2/168:45 am -
2 stops14h 09m
Deal found 10/12![United Airlines logo]()
$759
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/249:30 am -
2 stops26h 54m
Mon 12/288:45 am -
2 stops24h 32m
Deal found 10/12![United Airlines logo]()
$772
Last-minute flights from Boston to Costa RicaDiscover last-minute flight deals from Boston to Costa Rica. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Costa Rica. Data last updated October 13, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:40 am -
2 stops16h 16m
Tue 11/35:53 pm -
1 stop14h 52m
Deal found 10/8![Multiple Airlines logo]()
$406
This Mytrip deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:40 am -
2 stops30h 26m
Tue 11/35:53 pm -
1 stop14h 52m
Deal found 10/10![Multiple Airlines logo]()
$385
This American Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:27 am -
1 stop9h 33m
Sat 11/72:07 pm -
1 stop18h 10m
Deal found 10/10![American Airlines logo]()
$412
This American Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:17 am -
1 stop10h 43m
Wed 11/42:07 pm -
2 stops16h 05m
Deal found 10/10![American Airlines logo]()
$416
This American Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:44 am -
2 stops12h 06m
Sat 11/72:07 pm -
1 stop18h 10m
Deal found 10/8![American Airlines logo]()
$411
This Copa Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:50 pm -
1 stop19h 17m
Thu 11/126:10 pm -
1 stop26h 51m
Deal found 10/8![Copa Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:58 pm -
1 stop20h 48m
Mon 11/162:46 pm -
1 stop20h 05m
Deal found 10/8![American Airlines logo]()
$407
This Copa Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:50 pm -
1 stop21h 09m
Tue 11/176:10 pm -
1 stop26h 51m
Deal found 10/8![Copa Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:00 am -
1 stop15h 50m
Fri 11/202:07 pm -
1 stop18h 15m
Deal found 10/9![American Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:00 am -
1 stop16h 57m
Tue 12/13:52 pm -
1 stop19h 53m
Deal found 10/9![American Airlines logo]()
$397
This Air Canada deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:45 am -
1 stop9h 25m
Tue 12/13:20 pm -
1 stop17h 28m
Deal found 10/8![Air Canada logo]()
$425
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:00 pm -
2 stops21h 07m
Sat 12/56:07 am -
2 stops11h 21m
Deal found 10/9![American Airlines logo]()
$391
One-way flights from Boston to Costa RicaSearch for one-way flight options from Boston to Costa Rica. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
Search for one-way flight options from Boston to Costa Rica. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/249:30 am -
2 stops12h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![United Airlines logo]()
$182
This JetBlue deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/288:15 am -
Nonstop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![JetBlue logo]()
$185
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/233:10 pm -
1 stop7h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$189
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/89:25 am -
1 stop12h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$193
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/87:44 pm -
2 stops17h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![American Airlines logo]()
$194
This American Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:00 am -
2 stops9h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![American Airlines logo]()
$196
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/46:00 am -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![American Airlines logo]()
$199
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/219:25 am -
1 stop12h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![United Airlines logo]()
$199
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/29:00 pm -
2 stops14h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![American Airlines logo]()
$205
This American Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:46 pm -
1 stop21h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![American Airlines logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:40 am -
2 stops54h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$207
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:36 pm -
2 stops19h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![United Airlines logo]()
$212
Find flight deals from Boston to Costa Rica
Keep the following information in mind while searching for Boston to Costa Rica flight deals. Data was last updated October 13, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $385 (Mytrip) |
One-way from | $182 (United Airlines) |
Popular in | December |
Cheapest in | October |
Average price | $407 |
Good round-trip deal | $731 or less |
Good one-way deal | $229 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Costa Rica that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 13, 2026.
Use the filters below to find and compare flights from Boston to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSan José
BOS Boston Logan Intl - SJO San José Juan Santamaria Intl
BOSSJO
Boston Logan Intl
Sun 2/28
6:00 am-6:16 pm
2 stops13h 16m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$189
BostonSan José
BOS Boston Logan Intl - SJO San José Juan Santamaria Intl
BOSSJO
Boston Logan Intl
Sun 2/21
7:35 am-6:16 pm
1 stop11h 41m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$189
BostonLiberia
BOS Boston Logan Intl - LIR Liberia
BOSLIR
Boston Logan Intl
Mon 1/11
6:39 pm-1:10 pm
2 stops19h 31m
Liberia
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$199
BostonSan José
BOS Boston Logan Intl - SJO San José Juan Santamaria Intl
BOSSJO
Boston Logan Intl
Thu 1/21
9:25 am-8:39 pm
1 stop12h 14m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$199
BostonLiberia
BOS Boston Logan Intl - LIR Liberia
BOSLIR
Boston Logan Intl
Wed 2/3
4:54 pm-12:56 pm
1 stop21h 02m
Liberia
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$213
BostonLiberia
BOS Boston Logan Intl - LIR Liberia
BOSLIR
Boston Logan Intl
Fri 11/13
8:59 pm-12:45 pm
1 stop16h 46m
Liberia
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$222
BostonLiberia
BOS Boston Logan Intl - LIR Liberia
BOSLIR
Boston Logan Intl
Sun 1/10
6:00 pm-12:35 pm
1 stop19h 35m
Liberia
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$222
BostonLiberia
BOS Boston Logan Intl - LIR Liberia
BOSLIR
Boston Logan Intl
Thu 2/4
8:15 pm-12:45 pm
1 stop17h 30m
Liberia
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$222
Quickest round-trip
BostonLiberia
BOS Boston Logan Intl - LIR Liberia
BOSLIR
Boston Logan Intl
Fri 1/8
6:55 am-2:10 pm
1 stop8h 15m
Liberia
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$222
BostonLiberia
BOS Boston Logan Intl - LIR Liberia
BOSLIR
Boston Logan Intl
Sun 11/8
5:30 am-6:37 pm
2 stops14h 07m
Liberia
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$222
Showing 1-10 of 42 resultsSorted by cheapest first
Best time to book a flight from Boston to Costa Rica
Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Boston with our price prediction graph.
BOS-SJO
BOS-LIR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Boston to Costa Rica
BOS-CR0
BOS-SJO
BOS-LIR
What is the cheapest month to book a flight from Boston to Costa Rica?
Currently, October is the cheapest month in which you can book a flight from Boston to Costa Rica (average of $419). Flying from Boston to Costa Rica in December is currently the most expensive (average of $697). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Boston to Costa Rica?
The price you pay for your flight from Boston to Costa Rica may vary depending on when you book. For the best chance of a lower fare, look to book 24 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Costa Rica
Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated October 13, 2026.
Peruse reviews from past customers who have flown with Delta,Copa Airlines, andUnited Airlines from Boston to Costa Rica to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Boarding
8.1
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Boarding
8.1
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Boarding
8.1
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Boarding
8.1
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Boarding
8.1
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Related info for your journey
Find useful and relevant information for your journey from Boston to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Boston to Costa Rica
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Complete your trip
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Find flights from Boston to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Costa Rica flights
Browse other Boston and Costa Rica flight options. Last updated on October 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 9 airlines flying from Boston to Costa Rica
Discover the top 9 airlines that operate flights from Boston to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$613 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$159 | Average$490 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$169 | Average$536 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$191 | Average$412 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$251 | Average$534 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$286 | Average$560 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$316 | Average$572 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$329 | Average$429 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$594 | Average$750 | FlexibilityNo cancel fee | On-time63% |