$317+ Cheap flights from Boston (BOS) to Buenos Aires (BUE)
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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BUE
Dec 10 — Dec 171
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Buenos Aires with Cheapflights
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Cheapest flights from Boston to Buenos AiresExplore the most affordable flight options available from Boston to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
Explore the most affordable flight options available from Boston to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
This United Airlines deal was found by Cheapflights users on 11/9. 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 12/255:45 am -
2 stops23h 35m
Mon 1/2511:55 pm -
2 stops24h 04m
Deal found 11/9![United Airlines logo]()
$922
This Delta deal was found by Cheapflights users on 11/5. 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.
Fri 12/412:20 pm -
1 stop17h 15m
Thu 12/179:30 pm -
1 stop15h 32m
Deal found 11/5![Delta logo]()
$923
This Delta deal was found by Cheapflights users on 11/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2710:20 am -
1 stop19h 15m
Mon 1/258:05 pm -
1 stop17h 00m
Deal found 11/9![Delta logo]()
$927
This United Airlines deal was found by Cheapflights users on 11/6. 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 12/103:13 pm -
1 stop16h 07m
Tue 12/1510:05 pm -
2 stops25h 54m
Deal found 11/6![United Airlines logo]()
$931
This LATAM Airlines deal was found by Cheapflights users on 11/10. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:20 pm -
1 stop19h 20m
Thu 12/107:35 pm -
2 stops18h 58m
Deal found 11/10![LATAM Airlines logo]()
$933
This Cheapflightsfares deal was found by Cheapflights users on 11/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/131:50 pm -
1 stop15h 45m
Sun 12/2011:35 pm -
1 stop23h 25m
Deal found 11/10![LATAM Airlines logo]()
$936
This LATAM Airlines deal was found by Cheapflights users on 11/10. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/911:50 am -
2 stops17h 45m
Sat 12/123:10 pm -
2 stops22h 03m
Deal found 11/10![LATAM Airlines logo]()
$938
This Avianca deal was found by Cheapflights users on 11/10. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/87:55 am -
1 stop19h 45m
Fri 12/117:05 am -
1 stop25h 30m
Deal found 11/10![Avianca logo]()
$944
This Cheapflightsfares deal was found by Cheapflights users on 11/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/132:54 pm -
1 stop14h 41m
Tue 1/1912:50 pm -
2 stops27h 13m
Deal found 11/9![LATAM Airlines logo]()
$949
This Cheapflightsfares deal was found by Cheapflights users on 11/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:20 pm -
2 stops19h 20m
Sun 12/133:50 pm -
2 stops24h 48m
Deal found 11/7![LATAM Airlines logo]()
$963
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:45 pm -
2 stops20h 15m
Thu 12/2412:50 pm -
2 stops23h 52m
Deal found 11/5![LATAM Airlines logo]()
$963
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Fri 11/275:33 pm -
1 stop15h 02m
Wed 3/3110:20 pm -
1 stop18h 40m
Deal found 11/9![American Airlines logo]()
$965
Best flights from Boston to Buenos AiresDiscover carefully curated flight deals from Boston to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
Discover carefully curated flight deals from Boston to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
This Delta deal was found by Cheapflights users on 11/5. 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.
Fri 12/412:20 pm -
1 stop17h 15m
Thu 12/179:30 pm -
1 stop15h 32m
Deal found 11/5![Delta logo]()
$923
This United Airlines deal was found by Cheapflights users on 11/8. 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.
Tue 12/85:45 am -
2 stops23h 35m
Tue 12/1510:05 pm -
2 stops18h 27m
Deal found 11/8![United Airlines logo]()
$931
This Copa Airlines deal was found by Cheapflights users on 11/6. 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 3/317:30 am -
1 stop14h 53m
Thu 4/292:08 am -
1 stop21h 56m
Deal found 11/6![Copa Airlines logo]()
$936
This Avianca deal was found by Cheapflights users on 11/10. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/87:55 am -
1 stop19h 45m
Fri 12/117:05 am -
1 stop25h 30m
Deal found 11/10![Avianca logo]()
$944
This oojo deal was found by Cheapflights users on 11/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/178:45 pm -
2 stops18h 15m
Sat 4/248:40 am -
2 stops26h 42m
Deal found 11/8![LATAM Airlines logo]()
$1,110
This Mytrip deal was found by Cheapflights users on 11/5. 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 2/83:30 pm -
2 stops27h 10m
Wed 3/105:30 am -
3 stops27h 05m
Deal found 11/5![Multiple Airlines logo]()
$1,250
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 11/269:00 am -
2 stops20h 20m
Mon 12/710:05 pm -
1 stop20h 40m
Deal found 11/9![United Airlines logo]()
$1,028
This Copa Airlines deal was found by Cheapflights users on 11/9. 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.
Fri 5/77:30 am -
1 stop16h 08m
Sun 5/162:08 am -
1 stop21h 56m
Deal found 11/9![Copa Airlines logo]()
$1,076
This Delta deal was found by Cheapflights users on 11/8. 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.
Sat 5/83:10 pm -
2 stops23h 50m
Thu 5/206:20 pm -
1 stop14h 15m
Deal found 11/8![Delta logo]()
$1,078
This United Airlines deal was found by Cheapflights users on 11/7. 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 2/145:45 am -
2 stops25h 35m
Mon 2/2211:55 pm -
1 stop21h 16m
Deal found 11/7![United Airlines logo]()
$1,080
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 11/281:45 pm -
2 stops17h 55m
Tue 12/88:05 pm -
2 stops18h 28m
Deal found 11/5![Delta logo]()
$1,088
This Delta deal was found by Cheapflights users on 11/7. 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.
Sat 11/281:45 pm -
2 stops17h 55m
Sun 12/612:55 pm -
1 stop19h 50m
Deal found 11/7![Delta logo]()
$1,116
This United Airlines deal was found by Cheapflights users on 11/7. 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 11/206:00 am -
2 stops23h 20m
Thu 12/311:55 pm -
1 stop18h 50m
Deal found 11/7![United Airlines logo]()
$1,130
This Delta deal was found by Cheapflights users on 11/5. 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.
Sun 2/79:05 am -
1 stop22h 35m
Wed 3/105:35 pm -
2 stops23h 06m
Deal found 11/5![Delta logo]()
$1,122
This United Airlines deal was found by Cheapflights users on 11/9. 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 12/116:00 am -
2 stops23h 20m
Thu 12/2410:05 pm -
2 stops18h 20m
Deal found 11/9![United Airlines logo]()
$1,139
This Delta deal was found by Cheapflights users on 11/6. 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.
Fri 4/1610:00 am -
1 stop22h 40m
Tue 4/206:20 pm -
1 stop14h 15m
Deal found 11/6![Delta logo]()
$1,124
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 2/117:05 am -
1 stop24h 15m
Thu 2/2511:55 pm -
2 stops20h 54m
Deal found 11/9![United Airlines logo]()
$1,188
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 2/277:45 pm -
2 stops18h 15m
Sun 3/78:05 pm -
2 stops17h 14m
Deal found 11/5![Delta logo]()
$1,127
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:20 pm -
1 stop14h 20m
Sun 11/298:05 pm -
1 stop27h 23m
Deal found 11/10![Delta logo]()
$1,127
This Delta deal was found by Cheapflights users on 11/6. 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.
Wed 4/148:45 pm -
2 stops18h 15m
Tue 4/206:20 pm -
1 stop14h 15m
Deal found 11/6![Delta logo]()
$1,128
This Delta deal was found by Cheapflights users on 11/5. 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.
Sun 4/1811:05 am -
2 stops19h 35m
Sun 4/256:20 pm -
2 stops21h 21m
Deal found 11/5![Delta logo]()
$1,138
This Delta deal was found by Cheapflights users on 11/5. 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.
Fri 4/165:55 pm -
2 stops17h 05m
Sun 4/256:20 pm -
2 stops21h 21m
Deal found 11/5![Delta logo]()
$1,138
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:00 pm -
2 stops17h 50m
Wed 12/2311:35 pm -
1 stop16h 28m
Deal found 11/10![Delta logo]()
$1,140
Last-minute flights from Boston to Buenos AiresDiscover last-minute flight deals from Boston to Buenos Aires. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Buenos Aires. Data last updated November 10, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Fri 11/275:33 pm -
1 stop15h 02m
Wed 3/3110:20 pm -
1 stop18h 40m
Deal found 11/9![American Airlines logo]()
$965
This Delta deal was found by Cheapflights users on 11/5. 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.
Fri 12/412:20 pm -
1 stop17h 15m
Thu 12/179:30 pm -
1 stop15h 32m
Deal found 11/5![Delta logo]()
$923
This Cheapflightsfares deal was found by Cheapflights users on 11/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:20 pm -
2 stops19h 20m
Sun 12/133:50 pm -
2 stops24h 48m
Deal found 11/7![LATAM Airlines logo]()
$963
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:45 pm -
2 stops20h 15m
Thu 12/2412:50 pm -
2 stops23h 52m
Deal found 11/5![LATAM Airlines logo]()
$963
This LATAM Airlines deal was found by Cheapflights users on 11/10. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:20 pm -
1 stop19h 20m
Thu 12/107:35 pm -
2 stops18h 58m
Deal found 11/10![LATAM Airlines logo]()
$933
This Avianca deal was found by Cheapflights users on 11/10. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/87:55 am -
1 stop19h 45m
Fri 12/117:05 am -
1 stop25h 30m
Deal found 11/10![Avianca logo]()
$944
This LATAM Airlines deal was found by Cheapflights users on 11/10. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/911:50 am -
2 stops17h 45m
Sat 12/123:10 pm -
2 stops22h 03m
Deal found 11/10![LATAM Airlines logo]()
$938
This United Airlines deal was found by Cheapflights users on 11/6. 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 12/103:13 pm -
1 stop16h 07m
Tue 12/1510:05 pm -
2 stops25h 54m
Deal found 11/6![United Airlines logo]()
$931
This Cheapflightsfares deal was found by Cheapflights users on 11/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/131:50 pm -
1 stop15h 45m
Sun 12/2011:35 pm -
1 stop23h 25m
Deal found 11/10![LATAM Airlines logo]()
$936
This Cheapflightsfares deal was found by Cheapflights users on 11/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/132:54 pm -
1 stop14h 41m
Tue 1/1912:50 pm -
2 stops27h 13m
Deal found 11/9![LATAM Airlines logo]()
$949
This United Airlines deal was found by Cheapflights users on 11/9. 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 12/255:45 am -
2 stops23h 35m
Mon 1/2511:55 pm -
2 stops24h 04m
Deal found 11/9![United Airlines logo]()
$922
This Delta deal was found by Cheapflights users on 11/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2710:20 am -
1 stop19h 15m
Mon 1/258:05 pm -
1 stop17h 00m
Deal found 11/9![Delta logo]()
$927
One-way flights from Boston to Buenos AiresSearch for one-way flight options from Boston to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
Search for one-way flight options from Boston to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This Expedia deal was found by Cheapflights users on 11/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1211:15 am -
1 stop15h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Arajet logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Wed 1/67:05 am -
3 stops30h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Wed 1/67:05 am -
3 stops33h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Wed 12/307:00 am -
3 stops36h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$352
This TravelUp deal was found by Cheapflights users on 11/5. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/119:20 pm -
1 stop29h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Arajet logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 1/911:15 am -
3 stops49h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$358
This Arajet deal was found by Cheapflights users on 11/10. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1810:20 pm -
1 stop28h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Arajet logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/194:30 pm -
3 stops47h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Tue 1/54:30 pm -
2 stops21h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$363
This TravelUp deal was found by Cheapflights users on 11/8. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/411:15 am -
1 stop15h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Arajet logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/910:10 am -
3 stops30h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/92:54 pm -
2 stops27h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$376
Find flight deals from Boston to Buenos Aires
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $912 (oojo) |
One-way from | $317 (Expedia) |
Popular in | December |
Cheapest in | June |
Average price | $1,082 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Buenos Aires 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 November 10, 2026.
Use the filters below to find and compare flights from Boston to Buenos Aires that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonBuenos Aires
BOS Boston Logan Intl - EZE Buenos Aires Ministro Pistarini
BOSEZE
Boston Logan Intl
Fri 3/12
11:15 am-4:35 am
1 stop15h 20m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$358
BostonBuenos Aires
BOS Boston Logan Intl - EZE Buenos Aires Ministro Pistarini
BOSEZE
Boston Logan Intl
Sun 4/18
10:20 pm-3:23 am
1 stop28h 03m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$358
BostonBuenos Aires
BOS Boston Logan Intl - AEP Buenos Aires Jorge Newbery
BOSAEP
Boston Logan Intl
Tue 1/5
4:30 pm-3:30 pm
2 stops21h 00m
Buenos Aires Jorge Newbery
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$363
BostonBuenos Aires
BOS Boston Logan Intl - AEP Buenos Aires Jorge Newbery
BOSAEP
Boston Logan Intl
Mon 11/30
9:05 am-10:30 am
1 stop23h 25m
Buenos Aires Jorge Newbery
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$488
BostonBuenos Aires
BOS Boston Logan Intl - EZE Buenos Aires Ministro Pistarini
BOSEZE
Boston Logan Intl
Tue 12/1
1:37 pm-10:40 am
2 stops19h 03m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$498
BostonBuenos Aires
BOS Boston Logan Intl - AEP Buenos Aires Jorge Newbery
BOSAEP
Boston Logan Intl
Mon 11/30
9:05 am-2:00 pm
1 stop26h 55m
Buenos Aires Jorge Newbery
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$506
BostonBuenos Aires
BOS Boston Logan Intl - EZE Buenos Aires Ministro Pistarini
BOSEZE
Boston Logan Intl
Thu 3/11
9:20 pm-1:20 am
3 stops26h 00m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$511
BostonBuenos Aires
BOS Boston Logan Intl - AEP Buenos Aires Jorge Newbery
BOSAEP
Boston Logan Intl
Sun 3/7
9:05 am-12:00 pm
1 stop24h 55m
Buenos Aires Jorge Newbery
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$511
BostonBuenos Aires
BOS Boston Logan Intl - EZE Buenos Aires Ministro Pistarini
BOSEZE
Boston Logan Intl
Fri 11/20
6:45 am-9:40 am
1 stop24h 55m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$514
Quickest round-trip
BostonBuenos Aires
BOS Boston Logan Intl - EZE Buenos Aires Ministro Pistarini
BOSEZE
Boston Logan Intl
Fri 12/11
2:54 pm-7:35 am
1 stop14h 41m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$516
Showing 1-10 of 41 resultsSorted by cheapest first
Compare providers for flights from Boston to Buenos Aires
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Buenos Aires in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Buenos Aires flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Buenos Aires flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Buenos Aires flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boston to Buenos Aires
Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Boston with our price prediction graph.
BOS-BUE
BOS-EZE
BOS-AEP
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 Buenos Aires
BOS-BUE
BOS-EZE
BOS-AEP
What is the cheapest month to book a flight from Boston to Buenos Aires?
Currently, September is the cheapest month in which you can book a flight from Boston to Buenos Aires (average of $1,066). Flying from Boston to Buenos Aires in December is currently the most expensive (average of $1,459). 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 much does it cost to fly round-trip from Boston to Buenos Aires?
Airfare is below average for this route at the moment.
Boston to Buenos Aires flights typically cost between $974 and $1,243 in February.The cheapest round-trip price found within the last 5 days was $911 on Delta (Feb 27-Mar 13).
How far ahead should I book a flight from Boston to Buenos Aires?
Booking 6 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Buenos Aires
Get insights into the airlines that provide service to Buenos Aires. 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 Buenos Aires. Reviews last updated November 10, 2026.
See what other customers who have flown with Delta,Copa Airlines, andLATAM Airlines from Boston to Buenos Aires have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
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 Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
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Complete your trip
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Alternative routes for Boston to Buenos Aires
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Buenos Aires
Explore flights to Buenos Aires departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 10, 2026.
Complete your trip
Complete your trip to Buenos Aires by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Buenos Aires by cabin class
Find flights from Boston to Buenos Aires, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Buenos Aires flights
Browse other Boston and Buenos Aires flight options. Last updated on November 10, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on November 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Boston to Buenos Aires
Discover the top 4 airlines that operate flights from Boston to Buenos Aires. 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 November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$505 | Average$1,154 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$517 | Average$1,188 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$887 | Average$1,187 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$987 | Average$1,281 | FlexibilityNo cancel fee | On-time71% |