$177+ 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
Sep 2 — Sep 91
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Buenos Aires with Cheapflights
1. Tell us where you want to go
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Buenos Aires
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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 August 3, 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 August 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 10/212:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Mon 10/199:15 pm
EZE
- BOS
2 stops37h 54m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$608
This Kiwi.com deal was found by Cheapflights users on 8/1. 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
Tue 11/106:35 am
EZE
- BOS
1 stop29h 10m
Arajet
Deal found 8/1![Arajet logo]()
$655
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Fri 9/2512:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Tue 9/299:15 am
EZE
- BOS
3 stops32h 31m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$672
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 10/212:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Sat 10/179:15 pm
EZE
- BOS
2 stops36h 05m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$690
This Gotogate deal was found by Cheapflights users on 8/2. 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 Gotogate 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
Thu 9/249:45 am
EZE
- BOS
1 stop26h 00m
Arajet
Deal found 8/2![Arajet logo]()
$692
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 10/212:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Thu 10/227:45 am
EZE
- BOS
2 stops26h 20m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$696
This Mytrip deal was found by Cheapflights users on 7/31. 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.
Fri 9/1112:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Fri 9/259:15 pm
EZE
- BOS
2 stops19h 50m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$709
This Kiwi.com deal was found by Cheapflights users on 8/1. 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
Multiple Airlines
Thu 11/1211:00 am
EZE
- BOS
2 stops24h 05m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$723
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/1812:15 pm
BOS
- EZE
1 stop14h 08m
Arajet
Tue 11/106:35 am
EZE
- BOS
1 stop29h 10m
Arajet
Deal found 7/31![Arajet logo]()
$740
This oojo deal was found by Cheapflights users on 8/1. 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.
Tue 11/312:20 pm
BOS
- AEP
2 stops25h 40m
LATAM Airlines
Wed 11/49:45 pm
AEP
- BOS
1 stop35h 00m
LATAM Airlines
Deal found 8/1![LATAM Airlines logo]()
$855
This LATAM Airlines deal was found by Cheapflights users on 7/30. 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 10/199:05 am
BOS
- AEP
2 stops21h 35m
LATAM Airlines
Tue 10/206:20 pm
AEP
- BOS
2 stops17h 55m
LATAM Airlines
Deal found 7/30![LATAM Airlines logo]()
$942
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Wed 11/43:28 pm
BOS
- AEP
2 stops21h 12m
LATAM Airlines
Fri 11/610:35 am
AEP
- BOS
1 stop22h 10m
LATAM Airlines
Deal found 7/29![LATAM Airlines logo]()
$943
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 August 3, 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 August 3, 2026.
This LATAM Airlines deal was found by Cheapflights users on 8/2. 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.
Sun 10/47:10 am
BOS
- EZE
2 stops34h 11m
LATAM Airlines
Wed 10/74:45 pm
EZE
- BOS
1 stop15h 50m
LATAM Airlines
Deal found 8/2![LATAM Airlines logo]()
$994
This Copa Airlines deal was found by Cheapflights users on 8/2. 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.
Sat 1/167:34 am
BOS
- EZE
1 stop18h 49m
Copa Airlines
Sun 1/315:28 am
EZE
- BOS
1 stop18h 29m
Copa Airlines
Deal found 8/2![Copa Airlines logo]()
$1,006
This Delta deal was found by Cheapflights users on 8/2. 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 11/18:55 am
BOS
- EZE
1 stop29h 05m
Delta
Wed 12/97:20 am
EZE
- BOS
2 stops19h 55m
Delta
Deal found 8/2![Delta logo]()
$1,013
This Copa Airlines deal was found by Cheapflights users on 7/31. 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 11/22:50 pm
BOS
- EZE
1 stop13h 03m
Copa Airlines
Tue 11/107:40 am
EZE
- BOS
1 stop16h 21m
Copa Airlines
Deal found 7/31![Copa Airlines logo]()
$1,006
This oojo deal was found by Cheapflights users on 8/2. 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.
Fri 9/117:10 am
BOS
- AEP
2 stops23h 30m
LATAM Airlines
Fri 11/1310:35 am
AEP
- BOS
1 stop22h 10m
LATAM Airlines
Deal found 8/2![LATAM Airlines logo]()
$1,007
This Delta deal was found by Cheapflights users on 7/29. 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 11/57:15 am
BOS
- AEP
2 stops22h 25m
Delta
Mon 11/95:35 pm
AEP
- BOS
2 stops22h 58m
Delta
Deal found 7/29![Delta logo]()
$1,018
This Copa Airlines deal was found by Cheapflights users on 7/30. 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 11/37:41 am
BOS
- EZE
1 stop17h 53m
Copa Airlines
Wed 11/1112:06 am
EZE
- BOS
1 stop23h 55m
Copa Airlines
Deal found 7/30![Copa Airlines logo]()
$1,006
This Justfly.com deal was found by Cheapflights users on 8/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/29:20 pm
BOS
- AEP
2 stops40h 30m
LATAM Airlines
Mon 10/512:55 pm
AEP
- BOS
2 stops23h 20m
LATAM Airlines
Deal found 8/2![LATAM Airlines logo]()
$1,013
This Delta deal was found by Cheapflights users on 7/29. 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 11/123:57 pm
BOS
- EZE
1 stop15h 43m
Delta
Sat 11/1411:35 pm
EZE
- BOS
1 stop23h 28m
Delta
Deal found 7/29![Delta logo]()
$1,018
This Copa Airlines deal was found by Cheapflights users on 8/1. 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 11/57:41 am
BOS
- EZE
1 stop15h 30m
Copa Airlines
Thu 11/125:16 am
EZE
- BOS
1 stop18h 45m
Copa Airlines
Deal found 8/1![Copa Airlines logo]()
$1,006
This Delta deal was found by Cheapflights users on 7/31. 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 11/31:55 pm
BOS
- EZE
2 stops38h 25m
Delta
Sun 11/87:20 am
EZE
- BOS
2 stops20h 00m
Delta
Deal found 7/31![Delta logo]()
$1,018
This Copa Airlines deal was found by Cheapflights users on 7/31. 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 11/37:41 am
BOS
- EZE
1 stop15h 30m
Copa Airlines
Tue 11/175:16 am
EZE
- BOS
1 stop18h 45m
Copa Airlines
Deal found 7/31![Copa Airlines logo]()
$1,006
This Delta deal was found by Cheapflights users on 7/29. 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 11/123:57 pm
BOS
- EZE
1 stop15h 43m
Delta
Mon 11/1611:35 pm
EZE
- BOS
1 stop17h 28m
Delta
Deal found 7/29![Delta logo]()
$1,018
This Delta deal was found by Cheapflights users on 7/30. 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 9/191:00 pm
BOS
- AEP
2 stops24h 00m
Delta
Thu 9/246:20 pm
AEP
- BOS
1 stop14h 15m
Delta
Deal found 7/30![Delta logo]()
$1,074
This Delta deal was found by Cheapflights users on 7/30. 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 10/209:20 pm
BOS
- AEP
2 stops17h 40m
Delta
Thu 10/228:05 pm
AEP
- BOS
2 stops19h 28m
Delta
Deal found 7/30![Delta logo]()
$1,084
This Delta deal was found by Cheapflights users on 8/1. 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 9/1110:00 am
BOS
- AEP
1 stop23h 30m
Delta
Thu 10/296:20 pm
AEP
- BOS
1 stop14h 25m
Delta
Deal found 8/1![Delta logo]()
$1,172
This Delta deal was found by Cheapflights users on 7/30. 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 9/109:20 pm
BOS
- AEP
2 stops17h 40m
Delta
Sat 9/1912:55 pm
AEP
- BOS
1 stop19h 40m
Delta
Deal found 7/30![Delta logo]()
$1,177
This Delta deal was found by Cheapflights users on 7/31. 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 9/189:55 am
BOS
- AEP
1 stop23h 35m
Delta
Mon 11/98:05 pm
AEP
- BOS
2 stops20h 52m
Delta
Deal found 7/31![Delta logo]()
$1,182
This Delta deal was found by Cheapflights users on 7/31. 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 9/119:55 am
BOS
- AEP
1 stop23h 35m
Delta
Sun 11/88:05 pm
AEP
- BOS
2 stops20h 52m
Delta
Deal found 7/31![Delta logo]()
$1,182
This Delta deal was found by Cheapflights users on 7/31. 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 9/119:55 am
BOS
- AEP
1 stop23h 35m
Delta
Thu 11/55:35 pm
AEP
- BOS
2 stops22h 58m
Delta
Deal found 7/31![Delta logo]()
$1,182
Last-minute flights from Boston to Buenos AiresDiscover last-minute flight deals from Boston to Buenos Aires. Data last updated August 3, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Buenos Aires. Data last updated August 3, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 7/30. 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.
Wed 8/1210:00 am
BOS
- EZE
1 stop14h 05m
LATAM Airlines
Mon 8/171:10 pm
EZE
- BOS
1 stop35h 26m
LATAM Airlines
Deal found 7/30![LATAM Airlines logo]()
$999
This oojo deal was found by Cheapflights users on 7/30. 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.
Thu 8/133:20 pm
BOS
- AEP
2 stops23h 40m
LATAM Airlines
Mon 8/179:45 pm
AEP
- BOS
1 stop34h 50m
LATAM Airlines
Deal found 7/30![LATAM Airlines logo]()
$951
This oojo deal was found by Cheapflights users on 7/30. 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.
Thu 8/1310:00 am
BOS
- EZE
1 stop14h 05m
LATAM Airlines
Mon 8/171:10 pm
EZE
- BOS
1 stop27h 12m
LATAM Airlines
Deal found 7/30![LATAM Airlines logo]()
$959
This oojo deal was found by Cheapflights users on 8/1. 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 8/153:20 pm
BOS
- EZE
1 stop17h 20m
LATAM Airlines
Mon 8/172:30 am
EZE
- BOS
1 stop30h 05m
LATAM Airlines
Deal found 8/1![LATAM Airlines logo]()
$981
This oojo deal was found by Cheapflights users on 7/31. 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.
Mon 8/175:30 am
BOS
- EZE
2 stops27h 10m
LATAM Airlines
Thu 8/202:30 am
EZE
- BOS
2 stops21h 50m
LATAM Airlines
Deal found 7/31![LATAM Airlines logo]()
$1,010
This oojo deal was found by Cheapflights users on 7/29. 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.
Wed 8/1910:00 am
BOS
- EZE
1 stop14h 05m
LATAM Airlines
Sat 8/297:21 pm
EZE
- BOS
2 stops21h 01m
LATAM Airlines
Deal found 7/29![LATAM Airlines logo]()
$1,012
This oojo deal was found by Cheapflights users on 7/31. 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.
Mon 8/243:20 pm
BOS
- EZE
2 stops34h 25m
LATAM Airlines
Wed 8/262:30 am
EZE
- BOS
2 stops21h 50m
LATAM Airlines
Deal found 7/31![LATAM Airlines logo]()
$909
This FlightHub deal was found by Cheapflights users on 7/31. 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.
Mon 8/245:05 pm
BOS
- EZE
2 stops20h 45m
LATAM Airlines
Wed 8/2611:45 am
EZE
- BOS
1 stop20h 50m
LATAM Airlines
Deal found 7/31![LATAM Airlines logo]()
$986
This FlightHub deal was found by Cheapflights users on 7/31. 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.
Tue 8/253:20 pm
BOS
- EZE
1 stop17h 20m
LATAM Airlines
Wed 8/265:00 pm
EZE
- BOS
1 stop15h 35m
LATAM Airlines
Deal found 7/31![LATAM Airlines logo]()
$975
This FlightHub deal was found by Cheapflights users on 7/31. 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.
Tue 8/255:30 am
BOS
- EZE
2 stops23h 40m
LATAM Airlines
Wed 8/262:30 am
EZE
- BOS
2 stops22h 06m
LATAM Airlines
Deal found 7/31![LATAM Airlines logo]()
$1,007
This oojo deal was found by Cheapflights users on 7/30. 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.
Thu 8/273:20 pm
BOS
- EZE
1 stop17h 20m
LATAM Airlines
Wed 9/92:10 am
EZE
- BOS
1 stop30h 25m
LATAM Airlines
Deal found 7/30![LATAM Airlines logo]()
$996
This oojo deal was found by Cheapflights users on 7/29. 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.
Thu 8/276:00 pm
BOS
- AEP
2 stops21h 00m
LATAM Airlines
Thu 9/176:20 pm
AEP
- BOS
1 stop14h 15m
LATAM Airlines
Deal found 7/29![LATAM Airlines logo]()
$1,007
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 August 3, 2026.
Search for one-way flight options from Boston to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
This eDestinos deal was found by Cheapflights users on 8/1. 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 9/1112:15 pm
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 8/1![Arajet logo]()
$177
This eDestinos deal was found by Cheapflights users on 8/1. 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 12/1111:15 am
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 8/1![Arajet logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 10/212:15 pm
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 8/1![Arajet logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 11/611:15 am
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 8/2![Arajet logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/612:45 pm
BOS
- EZE
3 stops34h 20m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 11/129:20 pm
BOS
- EZE
1 stop28h 03m
Arajet
Deal found 7/31![Arajet logo]()
$323
This Trip.com deal was found by Cheapflights users on 8/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:20 pm
BOS
- EZE
1 stop28h 03m
Arajet
Deal found 8/1![Arajet logo]()
$324
This Arajet deal was found by Cheapflights users on 7/30. 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.
Thu 10/2910:20 pm
BOS
- EZE
1 stop28h 03m
Arajet
Deal found 7/30![Arajet logo]()
$328
This Arajet deal was found by Cheapflights users on 7/31. 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.
Fri 11/2711:15 am
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 7/31![Arajet logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/610:04 am
BOS
- AEP
3 stops58h 16m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 10/199:15 am
BOS
- AEP
3 stops34h 25m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 11/1210:11 am
BOS
- AEP
3 stops46h 49m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$374
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 August 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $608 (Kiwi.com) |
One-way from | $177 (eDestinos) |
Popular in | July |
Cheapest in | September |
Average price | $1,223 |
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 August 3, 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
Sun 10/4
7:10 am-6:21 pm
2 stops34h 11m
Buenos Aires Ministro Pistarini
Wed 10/7
4:45 pm-7:35 am
1 stop15h 50m
$994
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Sat 1/16
7:34 am-4:23 am
1 stop18h 49m
Buenos Aires Ministro Pistarini
Sun 1/31
5:28 am-9:57 pm
1 stop18h 29m
$1,006
Quickest round-trip
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Mon 11/2
2:50 pm-5:53 am
1 stop13h 03m
Buenos Aires Ministro Pistarini
Tue 11/10
7:40 am-10:01 pm
1 stop16h 21m
$1,006
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Tue 11/3
7:41 am-3:34 am
1 stop17h 53m
Buenos Aires Ministro Pistarini
Wed 11/11
12:06 am-10:01 pm
1 stop23h 55m
$1,006
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Thu 11/5
7:41 am-1:11 am
1 stop15h 30m
Buenos Aires Ministro Pistarini
Thu 11/12
5:16 am-10:01 pm
1 stop18h 45m
$1,006
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Tue 11/3
7:41 am-1:11 am
1 stop15h 30m
Buenos Aires Ministro Pistarini
Tue 11/17
5:16 am-10:01 pm
1 stop18h 45m
$1,006
BostonBuenos Aires
BOS - AEP
BOSAEP
Boston Logan Intl
Fri 9/11
7:10 am-7:40 am
2 stops23h 30m
Buenos Aires Jorge Newbery
Fri 11/13
10:35 am-6:45 am
1 stop22h 10m
$1,007
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Sun 11/1
8:55 am-4:00 pm
1 stop29h 05m
Buenos Aires Ministro Pistarini
Wed 12/9
7:20 am-1:15 am
2 stops19h 55m
$1,013
BostonBuenos Aires
BOS - AEP
BOSAEP
Boston Logan Intl
Fri 10/2
9:20 pm-2:50 pm
2 stops40h 30m
Buenos Aires Jorge Newbery
Mon 10/5
12:55 pm-11:15 am
2 stops23h 20m
$1,013
BostonBuenos Aires
BOS - AEP
BOSAEP
Boston Logan Intl
Thu 11/5
7:15 am-7:40 am
2 stops22h 25m
Buenos Aires Jorge Newbery
Mon 11/9
5:35 pm-2:33 pm
2 stops22h 58m
$1,018
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 August.
| 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 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 $999). Flying from Boston to Buenos Aires in July is currently the most expensive (average of $1,432). 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 $1,008 and $1,369 in October.The cheapest round-trip price found within the last 5 days was $608 on Multiple Airlines (Oct 2-Oct 19).
How far ahead should I book a flight from Boston to Buenos Aires?
Booking 86 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 August 3, 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.
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Comfort
7.8
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 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
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Other flights from Boston
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 August 3, 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 August 3, 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 August 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Boston to Buenos Aires
Discover the top 5 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 August 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$486 | Average$1,075 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$531 | Average$1,135 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$811 | Average$1,295 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$861 | Average$1,341 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,038 | Average$1,312 | FlexibilityNo cancel fee | On-time71% |