$199+ Cheap flights from Boston (BOS) to Buenos Aires (BUE)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BUE
Jun 12 — Jun 191
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Buenos Aires 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 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 May 13, 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 May 13, 2026.
This Booking.com deal was found by Cheapflights users on 5/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:15 pm
BOS
- EZE
1 stop14h 08m
Arajet
Sat 9/59:15 pm
EZE
- BOS
1 stop24h 35m
Arajet
Deal found 5/12![Arajet logo]()
$818
This Orbitz deal was found by Cheapflights users on 5/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Fri 9/42:30 am
EZE
- BOS
2 stops18h 49m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$819
This LATAM Airlines deal was found by Cheapflights users on 5/8. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/133:18 pm
BOS
- EZE
1 stop17h 22m
LATAM Airlines
Sat 6/2710:40 pm
EZE
- BOS
1 stop17h 40m
LATAM Airlines
Deal found 5/8![LATAM Airlines logo]()
$833
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1212:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Fri 6/267:35 am
EZE
- BOS
2 stops24h 15m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$842
This LATAM Airlines deal was found by Cheapflights users on 5/8. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/267:20 am
BOS
- EZE
1 stop25h 20m
LATAM Airlines
Sat 7/410:40 pm
EZE
- BOS
1 stop17h 40m
LATAM Airlines
Deal found 5/8![LATAM Airlines logo]()
$843
This Copa Airlines deal was found by Cheapflights users on 5/9. 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.
Wed 10/78:47 am
BOS
- EZE
1 stop18h 33m
Copa Airlines
Tue 10/202:17 am
EZE
- BOS
1 stop21h 45m
Copa Airlines
Deal found 5/9![Copa Airlines logo]()
$858
This Copa Airlines deal was found by Cheapflights users on 5/10. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:45 am
BOS
- EZE
1 stop18h 35m
Copa Airlines
Tue 8/2512:10 am
EZE
- BOS
1 stop24h 00m
Copa Airlines
Deal found 5/10![Copa Airlines logo]()
$876
This Copa Airlines deal was found by Cheapflights users on 5/9. 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 9/258:47 am
BOS
- EZE
1 stop18h 33m
Copa Airlines
Tue 10/209:02 am
EZE
- BOS
1 stop15h 00m
Copa Airlines
Deal found 5/9![Copa Airlines logo]()
$881
This LATAM Airlines deal was found by Cheapflights users on 5/7. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:18 pm
BOS
- EZE
1 stop17h 22m
LATAM Airlines
Tue 6/168:30 pm
EZE
- BOS
2 stops19h 50m
LATAM Airlines
Deal found 5/7![LATAM Airlines logo]()
$889
This Copa Airlines deal was found by Cheapflights users on 5/10. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:45 am
BOS
- EZE
1 stop18h 35m
Copa Airlines
Tue 8/252:49 pm
EZE
- BOS
1 stop24h 45m
Copa Airlines
Deal found 5/10![Copa Airlines logo]()
$899
This Delta deal was found by Cheapflights users on 5/10. 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.
Tue 8/119:05 am
BOS
- AEP
2 stops25h 55m
Delta
Sat 8/223:45 pm
AEP
- BOS
2 stops28h 30m
Delta
Deal found 5/10![Delta logo]()
$907
This LATAM Airlines deal was found by Cheapflights users on 5/8. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:05 am
BOS
- AEP
2 stops22h 25m
LATAM Airlines
Mon 6/293:45 pm
AEP
- BOS
2 stops25h 24m
LATAM Airlines
Deal found 5/8![LATAM Airlines logo]()
$908
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 May 13, 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 May 13, 2026.
This Copa Airlines deal was found by Cheapflights users on 5/9. 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.
Wed 10/78:47 am
BOS
- EZE
1 stop18h 33m
Copa Airlines
Tue 10/202:17 am
EZE
- BOS
1 stop21h 45m
Copa Airlines
Deal found 5/9![Copa Airlines logo]()
$858
This United Airlines deal was found by Cheapflights users on 5/9. 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.
Wed 8/197:25 am
BOS
- EZE
1 stop23h 35m
United Airlines
Mon 8/249:00 pm
EZE
- BOS
1 stop18h 39m
United Airlines
Deal found 5/9![United Airlines logo]()
$907
This Delta deal was found by Cheapflights users on 5/8. 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.
Mon 6/81:55 pm
BOS
- EZE
1 stop18h 50m
Delta
Mon 6/2210:40 pm
EZE
- BOS
1 stop17h 40m
Delta
Deal found 5/8![Delta logo]()
$907
This Cheapflightsfares deal was found by Cheapflights users on 5/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/261:35 pm
BOS
- AEP
2 stops24h 15m
LATAM Airlines
Sat 7/48:05 pm
AEP
- BOS
2 stops36h 19m
LATAM Airlines
Deal found 5/8![LATAM Airlines logo]()
$943
This Mytrip deal was found by Cheapflights users on 5/8. 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.
Thu 9/1010:20 pm
BOS
- AEP
3 stops29h 00m
Multiple Airlines
Wed 9/235:40 am
AEP
- BOS
2 stops26h 30m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,109
This Copa Airlines deal was found by Cheapflights users on 5/10. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:47 am
BOS
- EZE
1 stop18h 33m
Copa Airlines
Mon 10/122:17 am
EZE
- BOS
1 stop21h 45m
Copa Airlines
Deal found 5/10![Copa Airlines logo]()
$881
This Delta deal was found by Cheapflights users on 5/8. 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.
Fri 6/262:00 pm
BOS
- EZE
2 stops18h 40m
Delta
Sat 7/410:40 pm
EZE
- BOS
2 stops19h 53m
Delta
Deal found 5/8![Delta logo]()
$911
This United Airlines deal was found by Cheapflights users on 5/9. 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.
Tue 8/1811:00 am
BOS
- EZE
2 stops20h 00m
United Airlines
Wed 8/269:00 pm
EZE
- BOS
2 stops18h 50m
United Airlines
Deal found 5/9![United Airlines logo]()
$911
This Copa Airlines deal was found by Cheapflights users on 5/11. 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.
Mon 10/193:55 pm
BOS
- EZE
1 stop15h 02m
Copa Airlines
Fri 10/233:48 am
EZE
- BOS
1 stop20h 14m
Copa Airlines
Deal found 5/11![Copa Airlines logo]()
$904
This Delta deal was found by Cheapflights users on 5/8. 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.
Mon 6/293:18 pm
BOS
- EZE
1 stop17h 22m
Delta
Sat 8/81:10 pm
EZE
- BOS
1 stop27h 12m
Delta
Deal found 5/8![Delta logo]()
$912
This United Airlines deal was found by Cheapflights users on 5/10. 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.
Fri 6/263:54 pm
BOS
- EZE
1 stop15h 06m
United Airlines
Sat 7/49:00 pm
EZE
- BOS
2 stops25h 53m
United Airlines
Deal found 5/10![United Airlines logo]()
$961
This KAYAK deal was found by Cheapflights users on 5/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:55 pm
BOS
- AEP
2 stops20h 05m
LATAM Airlines
Tue 10/206:20 pm
AEP
- BOS
2 stops21h 21m
LATAM Airlines
Deal found 5/12![LATAM Airlines logo]()
$1,058
This LATAM Airlines deal was found by Cheapflights users on 5/8. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:55 am
BOS
- AEP
2 stops20h 45m
LATAM Airlines
Wed 9/96:20 pm
AEP
- BOS
1 stop14h 15m
LATAM Airlines
Deal found 5/8![LATAM Airlines logo]()
$1,106
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/125:55 pm
BOS
- AEP
2 stops21h 05m
Delta
Thu 7/236:20 pm
AEP
- BOS
1 stop14h 15m
Delta
Deal found 5/12![Delta logo]()
$1,073
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:20 pm
BOS
- AEP
2 stops17h 40m
Delta
Wed 7/225:00 pm
AEP
- BOS
1 stop15h 35m
Delta
Deal found 5/12![Delta logo]()
$1,073
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/125:55 pm
BOS
- AEP
2 stops21h 05m
Delta
Wed 7/225:00 pm
AEP
- BOS
1 stop15h 35m
Delta
Deal found 5/12![Delta logo]()
$1,073
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:20 pm
BOS
- AEP
2 stops17h 40m
Delta
Wed 7/225:00 pm
AEP
- BOS
1 stop15h 35m
Delta
Deal found 5/12![Delta logo]()
$1,073
This Delta deal was found by Cheapflights users on 5/10. 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.
Wed 10/149:55 am
BOS
- AEP
1 stop22h 30m
Delta
Tue 10/206:20 pm
AEP
- BOS
1 stop14h 15m
Delta
Deal found 5/10![Delta logo]()
$1,117
This Delta deal was found by Cheapflights users on 5/10. 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.
Fri 10/169:55 am
BOS
- AEP
1 stop23h 35m
Delta
Sat 10/2412:55 pm
AEP
- BOS
1 stop19h 40m
Delta
Deal found 5/10![Delta logo]()
$1,117
This Delta deal was found by Cheapflights users on 5/9. 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.
Tue 7/218:00 am
BOS
- AEP
2 stops22h 40m
Delta
Tue 7/286:20 pm
AEP
- BOS
1 stop14h 15m
Delta
Deal found 5/9![Delta logo]()
$1,122
Last-minute flights from Boston to Buenos AiresDiscover last-minute flight deals from Boston to Buenos Aires. Data last updated May 13, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Buenos Aires. Data last updated May 13, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Fri 5/2912:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Wed 6/104:45 am
EZE
- BOS
2 stops39h 13m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$917
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/512:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Fri 6/1211:25 pm
EZE
- BOS
2 stops20h 33m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$938
This KAYAK deal was found by Cheapflights users on 5/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/73:18 pm
BOS
- AEP
2 stops22h 32m
LATAM Airlines
Wed 6/178:40 am
AEP
- BOS
2 stops31h 40m
LATAM Airlines
Deal found 5/10![LATAM Airlines logo]()
$907
This United Airlines deal was found by Cheapflights users on 5/10. 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.
Sun 6/71:37 pm
BOS
- EZE
1 stop17h 23m
United Airlines
Tue 6/99:00 pm
EZE
- BOS
1 stop16h 28m
United Airlines
Deal found 5/10![United Airlines logo]()
$907
This Delta deal was found by Cheapflights users on 5/8. 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.
Mon 6/81:55 pm
BOS
- EZE
2 stops18h 45m
Delta
Mon 6/2210:40 pm
EZE
- BOS
2 stops17h 40m
Delta
Deal found 5/8![Delta logo]()
$911
This LATAM Airlines deal was found by Cheapflights users on 5/7. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:18 pm
BOS
- EZE
1 stop17h 22m
LATAM Airlines
Tue 6/168:30 pm
EZE
- BOS
2 stops19h 50m
LATAM Airlines
Deal found 5/7![LATAM Airlines logo]()
$889
This Expedia deal was found by Cheapflights users on 5/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/912:30 pm
BOS
- EZE
1 stop20h 15m
Multiple Airlines
Tue 6/168:30 pm
EZE
- BOS
2 stops18h 52m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$927
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1212:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Fri 6/267:35 am
EZE
- BOS
2 stops24h 15m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$842
This LATAM Airlines deal was found by Cheapflights users on 5/8. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/133:18 pm
BOS
- EZE
1 stop17h 22m
LATAM Airlines
Sat 6/2710:40 pm
EZE
- BOS
1 stop17h 40m
LATAM Airlines
Deal found 5/8![LATAM Airlines logo]()
$833
This LATAM Airlines deal was found by Cheapflights users on 5/8. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:05 am
BOS
- AEP
2 stops22h 25m
LATAM Airlines
Mon 6/293:45 pm
AEP
- BOS
2 stops25h 24m
LATAM Airlines
Deal found 5/8![LATAM Airlines logo]()
$908
This LATAM Airlines deal was found by Cheapflights users on 5/8. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/267:20 am
BOS
- EZE
1 stop25h 20m
LATAM Airlines
Sat 7/410:40 pm
EZE
- BOS
1 stop17h 40m
LATAM Airlines
Deal found 5/8![LATAM Airlines logo]()
$843
This Delta deal was found by Cheapflights users on 5/8. 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.
Mon 6/293:18 pm
BOS
- EZE
1 stop17h 22m
Delta
Sat 8/81:10 pm
EZE
- BOS
1 stop27h 12m
Delta
Deal found 5/8![Delta logo]()
$912
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 May 13, 2026.
Search for one-way flight options from Boston to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:15 pm
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 5/12![Arajet logo]()
$199
This eDestinos deal was found by Cheapflights users on 5/10. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:15 pm
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 5/10![Arajet logo]()
$283
This FlightHub deal was found by Cheapflights users on 5/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2612:15 pm
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 5/9![Arajet logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
BOS
- AEP
3 stops25h 30m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/610:20 pm
BOS
- EZE
1 stop28h 03m
Arajet
Deal found 5/12![Arajet logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:15 pm
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 5/12![Arajet logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:20 pm
BOS
- EZE
1 stop28h 03m
Arajet
Deal found 5/12![Arajet logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:55 am
BOS
- EZE
3 stops23h 50m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$410
This Mytrip deal was found by Cheapflights users on 5/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1012:15 pm
BOS
- AEP
3 stops31h 45m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$411
This Mytrip deal was found by Cheapflights users on 5/8. 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.
Sun 11/19:20 pm
BOS
- EZE
1 stop33h 09m
Arajet
Deal found 5/8![Arajet logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:15 pm
BOS
- AEP
3 stops39h 05m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:47 am
BOS
- AEP
3 stops46h 43m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$424
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 May 13, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $818 (Booking.com) |
One-way from | $199 (Kiwi.com) |
Popular in | July |
Cheapest in | September |
Average price | $1,168 |
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 2,558,603 searches. Data last updated May 13, 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 - EZE
BOSEZE
Boston Logan Intl
Wed 10/7
8:47 am-4:20 am
1 stop18h 33m
Buenos Aires Ministro Pistarini
Tue 10/20
2:17 am-11:02 pm
1 stop21h 45m
$858
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Tue 10/6
8:47 am-4:20 am
1 stop18h 33m
Buenos Aires Ministro Pistarini
Mon 10/12
2:17 am-11:02 pm
1 stop21h 45m
$881
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Mon 10/19
3:55 pm-7:57 am
1 stop15h 02m
Buenos Aires Ministro Pistarini
Fri 10/23
3:48 am-11:02 pm
1 stop20h 14m
$904
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Wed 8/19
7:25 am-8:00 am
1 stop23h 35m
Buenos Aires Ministro Pistarini
Mon 8/24
9:00 pm-2:39 pm
1 stop18h 39m
$907
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Mon 6/8
1:55 pm-9:45 am
1 stop18h 50m
Buenos Aires Ministro Pistarini
Mon 6/22
10:40 pm-3:20 pm
1 stop17h 40m
$907
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Fri 6/26
2:00 pm-9:40 am
2 stops18h 40m
Buenos Aires Ministro Pistarini
Sat 7/4
10:40 pm-5:33 pm
2 stops19h 53m
$911
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Tue 8/18
11:00 am-8:00 am
2 stops20h 00m
Buenos Aires Ministro Pistarini
Wed 8/26
9:00 pm-2:50 pm
2 stops18h 50m
$911
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Mon 6/29
3:18 pm-9:40 am
1 stop17h 22m
Buenos Aires Ministro Pistarini
Sat 8/8
1:10 pm-3:22 pm
1 stop27h 12m
$912
BostonBuenos Aires
BOS - AEP
BOSAEP
Boston Logan Intl
Fri 6/26
1:35 pm-2:50 pm
2 stops24h 15m
Buenos Aires Jorge Newbery
Sat 7/4
8:05 pm-7:24 am
2 stops36h 19m
$943
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Fri 6/26
3:54 pm-8:00 am
1 stop15h 06m
Buenos Aires Ministro Pistarini
Sat 7/4
9:00 pm-9:53 pm
2 stops25h 53m
$961
Showing 1-10 of 39 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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | 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 Accuracy2 stars | Trust Score*1 star | |
| 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Boston-Buenos Aires flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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
How far ahead should I book a flight from Boston to Buenos Aires?
Booking 53 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.
What is the cheapest month to book a flight from Boston to Buenos Aires?
Currently, June is the cheapest month in which you can book a flight from Boston to Buenos Aires (average of $279). Flying from Boston to Buenos Aires in April is currently the most expensive (average of $810). 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?
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 May 13, 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.
Comfort
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Buenos Aires flight routes
Complete your trip
Flights by cabin class
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Popular flights
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 May 13, 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 May 13, 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 May 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Boston to Buenos Aires
Discover the top 6 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 2,558,603 searches. Data last updated May 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$371 | Average$786 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$486 | Average$1,169 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$531 | Average$1,109 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$811 | Average$1,345 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$861 | Average$1,325 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,055 | Average$1,307 | FlexibilityNo cancel fee | On-time71% |