$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
Aug 8 — Aug 151
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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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 July 9, 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 July 9, 2026.
This Expedia deal was found by Cheapflights users on 7/7. 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 Expedia 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
Mon 9/1411:25 pm
EZE
- BOS
1 stop21h 36m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$740
This Arajet deal was found by Cheapflights users on 7/7. 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 Arajet 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
Tue 11/246:35 am
EZE
- BOS
1 stop29h 10m
Arajet
Deal found 7/7![Arajet logo]()
$761
This Orbitz deal was found by Cheapflights users on 7/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Fri 11/67:30 am
EZE
- BOS
1 stop25h 05m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$768
This Trip.com deal was found by Cheapflights users on 7/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:20 pm
BOS
- EZE
1 stop28h 03m
Multiple Airlines
Wed 11/114:55 pm
EZE
- BOS
1 stop15h 40m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$777
This LATAM Airlines deal was found by Cheapflights users on 7/6. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:55 am
BOS
- AEP
1 stop25h 05m
LATAM Airlines
Thu 11/1911:30 am
AEP
- BOS
2 stops28h 17m
LATAM Airlines
Deal found 7/6![LATAM Airlines logo]()
$788
This LATAM Airlines deal was found by Cheapflights users on 7/7. 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.
Mon 11/168:55 am
BOS
- EZE
1 stop14h 20m
LATAM Airlines
Thu 11/197:45 pm
EZE
- BOS
2 stops20h 56m
LATAM Airlines
Deal found 7/7![LATAM Airlines logo]()
$788
This Orbitz deal was found by Cheapflights users on 7/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:15 pm
BOS
- EZE
1 stop14h 08m
Multiple Airlines
Sat 11/77:30 am
EZE
- BOS
2 stops32h 20m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$789
This LATAM Airlines deal was found by Cheapflights users on 7/6. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:15 am
BOS
- AEP
2 stops34h 15m
Multiple Airlines
Tue 10/273:50 pm
AEP
- BOS
2 stops25h 57m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$793
This Booking.com deal was found by Cheapflights users on 7/3. 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.
Sun 11/159:20 pm
BOS
- EZE
1 stop28h 03m
Multiple Airlines
Fri 11/204:55 pm
EZE
- BOS
1 stop15h 40m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$797
This Booking.com deal was found by Cheapflights users on 7/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:20 pm
BOS
- EZE
1 stop28h 03m
Multiple Airlines
Mon 11/234:55 pm
EZE
- BOS
1 stop15h 40m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$804
This Gotogate deal was found by Cheapflights users on 7/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:20 pm
BOS
- EZE
1 stop28h 03m
Multiple Airlines
Sun 11/154:55 pm
EZE
- BOS
2 stops22h 55m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$812
This Booking.com deal was found by Cheapflights users on 7/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:20 pm
BOS
- EZE
1 stop28h 03m
Multiple Airlines
Tue 10/274:55 pm
EZE
- BOS
2 stops22h 55m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$818
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 July 9, 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 July 9, 2026.
This LATAM Airlines deal was found by Cheapflights users on 7/6. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:15 am
BOS
- AEP
2 stops34h 15m
Multiple Airlines
Tue 10/273:50 pm
AEP
- BOS
2 stops25h 57m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$793
This Delta deal was found by Cheapflights users on 7/6. 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 9/29:55 am
BOS
- AEP
1 stop23h 35m
Delta
Tue 12/86:20 pm
AEP
- BOS
1 stop14h 25m
Delta
Deal found 7/6![Delta logo]()
$917
This Copa Airlines deal was found by Cheapflights users on 7/6. 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 9/93:55 pm
BOS
- EZE
1 stop31h 56m
Copa Airlines
Wed 9/164:15 am
EZE
- BOS
1 stop19h 47m
Copa Airlines
Deal found 7/6![Copa Airlines logo]()
$920
This Justfly.com deal was found by Cheapflights users on 7/4. 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.
Wed 9/93:05 pm
BOS
- AEP
2 stops27h 35m
LATAM Airlines
Thu 9/1710:20 am
AEP
- BOS
1 stop22h 15m
LATAM Airlines
Deal found 7/4![LATAM Airlines logo]()
$1,083
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:57 pm
BOS
- AEP
2 stops18h 23m
Multiple Airlines
Fri 8/287:00 am
AEP
- BOS
1 stop24h 50m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$917
This Delta deal was found by Cheapflights users on 7/7. 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.
Mon 11/168:55 am
BOS
- EZE
1 stop14h 20m
Delta
Sat 11/212:05 am
EZE
- BOS
1 stop30h 40m
Delta
Deal found 7/7![Delta logo]()
$917
This Copa Airlines deal was found by Cheapflights users on 7/4. 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 9/93:55 pm
BOS
- EZE
1 stop31h 56m
Copa Airlines
Thu 9/175:25 am
EZE
- BOS
1 stop18h 37m
Copa Airlines
Deal found 7/4![Copa Airlines logo]()
$920
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:10 pm
BOS
- EZE
2 stops17h 30m
Delta
Sat 11/72:05 am
EZE
- BOS
1 stop30h 40m
Delta
Deal found 7/8![Delta logo]()
$926
This Copa Airlines deal was found by Cheapflights users on 7/5. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:47 am
BOS
- EZE
1 stop15h 04m
Copa Airlines
Sat 10/242:07 am
EZE
- BOS
1 stop21h 55m
Copa Airlines
Deal found 7/5![Copa Airlines logo]()
$943
This Mytrip deal was found by Cheapflights users on 7/4. 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 9/99:35 am
BOS
- AEP
3 stops31h 45m
Multiple Airlines
Thu 9/175:45 am
AEP
- BOS
3 stops37h 50m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$1,017
This Delta deal was found by Cheapflights users on 7/7. 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 10/247:15 am
BOS
- AEP
2 stops23h 25m
Delta
Sat 10/319:00 pm
AEP
- BOS
2 stops19h 20m
Delta
Deal found 7/7![Delta logo]()
$932
This Copa Airlines deal was found by Cheapflights users on 7/7. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/12:50 pm
BOS
- EZE
1 stop32h 21m
Copa Airlines
Sat 11/710:43 pm
EZE
- BOS
1 stop16h 44m
Copa Airlines
Deal found 7/7![Copa Airlines logo]()
$943
This FlightHub deal was found by Cheapflights users on 7/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/71:55 pm
BOS
- AEP
2 stops25h 05m
LATAM Airlines
Mon 8/179:45 pm
AEP
- BOS
1 stop34h 50m
LATAM Airlines
Deal found 7/5![LATAM Airlines logo]()
$1,181
This Delta deal was found by Cheapflights users on 7/7. 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.
Wed 8/1210:00 am
BOS
- EZE
1 stop14h 00m
Delta
Sat 8/151:10 pm
EZE
- BOS
1 stop27h 12m
Delta
Deal found 7/7![Delta logo]()
$934
This Copa Airlines deal was found by Cheapflights users on 7/6. 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.
Mon 10/263:55 pm
BOS
- EZE
1 stop12h 58m
Copa Airlines
Sat 11/1412:06 am
EZE
- BOS
1 stop15h 21m
Copa Airlines
Deal found 7/6![Copa Airlines logo]()
$943
This LATAM Airlines deal was found by Cheapflights users on 7/7. 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.
Mon 8/107:20 am
BOS
- AEP
2 stops35h 40m
Multiple Airlines
Sun 8/233:45 pm
AEP
- BOS
2 stops27h 42m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$1,039
This Copa Airlines deal was found by Cheapflights users on 7/5. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:55 pm
BOS
- EZE
1 stop28h 38m
Copa Airlines
Sat 10/3110:43 pm
EZE
- BOS
1 stop16h 44m
Copa Airlines
Deal found 7/5![Copa Airlines logo]()
$943
This Delta deal was found by Cheapflights users on 7/5. 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 10/259:55 am
BOS
- AEP
2 stops20h 45m
Delta
Sat 10/318:05 pm
AEP
- BOS
2 stops17h 14m
Delta
Deal found 7/5![Delta logo]()
$1,009
This Copa Airlines deal was found by Cheapflights users on 7/4. 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 10/98:47 am
BOS
- EZE
1 stop18h 49m
Copa Airlines
Sun 10/188:59 am
EZE
- BOS
1 stop30h 40m
Copa Airlines
Deal found 7/4![Copa Airlines logo]()
$986
This Delta deal was found by Cheapflights users on 7/4. 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 1/28:55 am
BOS
- AEP
1 stop22h 45m
Delta
Tue 1/198:05 pm
AEP
- BOS
2 stops19h 42m
Delta
Deal found 7/4![Delta logo]()
$1,013
This Copa Airlines deal was found by Cheapflights users on 7/3. 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 10/148:47 am
BOS
- EZE
1 stop18h 34m
Copa Airlines
Sun 10/188:59 am
EZE
- BOS
1 stop30h 40m
Copa Airlines
Deal found 7/3![Copa Airlines logo]()
$1,006
This Delta deal was found by Cheapflights users on 7/4. 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 1/411:05 am
BOS
- AEP
2 stops18h 35m
Delta
Tue 1/198:05 pm
AEP
- BOS
2 stops17h 14m
Delta
Deal found 7/4![Delta logo]()
$1,018
This Copa Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:41 am
BOS
- EZE
1 stop18h 34m
Copa Airlines
Wed 12/22:04 am
EZE
- BOS
1 stop21h 58m
Copa Airlines
Deal found 7/8![Copa Airlines logo]()
$1,006
This Delta deal was found by Cheapflights users on 7/4. 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 1/110:30 am
BOS
- AEP
2 stops19h 10m
Delta
Tue 1/199:00 pm
AEP
- BOS
2 stops18h 47m
Delta
Deal found 7/4![Delta logo]()
$1,018
Last-minute flights from Boston to Buenos AiresDiscover last-minute flight deals from Boston to Buenos Aires. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Buenos Aires. Data last updated July 9, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 7/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:05 pm
BOS
- EZE
2 stops17h 25m
LATAM Airlines
Fri 8/217:35 am
EZE
- BOS
2 stops18h 50m
LATAM Airlines
Deal found 7/7![LATAM Airlines logo]()
$897
This LATAM Airlines deal was found by Cheapflights users on 7/7. 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 8/113:20 pm
BOS
- AEP
2 stops29h 10m
LATAM Airlines
Fri 8/218:05 pm
AEP
- BOS
2 stops28h 31m
LATAM Airlines
Deal found 7/7![LATAM Airlines logo]()
$932
This FlightHub deal was found by Cheapflights users on 7/7. 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 FlightHub 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 00m
LATAM Airlines
Wed 8/263:55 am
EZE
- BOS
2 stops20h 41m
LATAM Airlines
Deal found 7/7![LATAM Airlines logo]()
$893
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:04 am
BOS
- EZE
2 stops20h 53m
Multiple Airlines
Fri 8/284:50 pm
EZE
- BOS
1 stop15h 00m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$853
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:57 pm
BOS
- AEP
2 stops42h 23m
Multiple Airlines
Fri 8/287:00 am
AEP
- BOS
1 stop24h 50m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$866
This Cheapflightsfares deal was found by Cheapflights users on 7/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:20 pm
BOS
- AEP
2 stops18h 20m
LATAM Airlines
Fri 8/288:05 pm
AEP
- BOS
2 stops26h 25m
LATAM Airlines
Deal found 7/6![LATAM Airlines logo]()
$968
This LATAM Airlines deal was found by Cheapflights users on 7/6. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:20 pm
BOS
- EZE
2 stops19h 10m
LATAM Airlines
Mon 8/243:35 pm
EZE
- BOS
2 stops20h 35m
LATAM Airlines
Deal found 7/6![LATAM Airlines logo]()
$903
This Gotogate deal was found by Cheapflights users on 7/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:20 pm
BOS
- EZE
1 stop32h 55m
Multiple Airlines
Thu 8/274:50 pm
EZE
- BOS
2 stops23h 00m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$907
This LATAM Airlines deal was found by Cheapflights users on 7/7. 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.
Sun 8/2310:00 am
BOS
- AEP
1 stop22h 30m
LATAM Airlines
Sat 8/295:35 pm
AEP
- BOS
2 stops22h 47m
LATAM Airlines
Deal found 7/7![LATAM Airlines logo]()
$974
This Mytrip deal was found by Cheapflights users on 7/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:45 am
BOS
- AEP
2 stops18h 35m
Multiple Airlines
Thu 9/310:10 pm
AEP
- BOS
2 stops33h 40m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$958
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:04 am
BOS
- EZE
2 stops20h 53m
Multiple Airlines
Tue 12/86:35 am
EZE
- BOS
1 stop29h 10m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$904
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:04 am
BOS
- EZE
2 stops20h 53m
Multiple Airlines
Wed 12/911:55 pm
EZE
- BOS
1 stop22h 00m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$916
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 July 9, 2026.
Search for one-way flight options from Boston to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 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 7/6![Arajet logo]()
$199
This Trip.com deal was found by Cheapflights users on 7/6. 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 Trip.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 7/6![Arajet logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 7/4. 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 8/249:36 am
BOS
- EZE
3 stops21h 39m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 7/4. 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 8/2312:45 pm
BOS
- EZE
3 stops42h 30m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$317
This Booking.com deal was found by Cheapflights users on 7/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:15 am
BOS
- EZE
1 stop14h 08m
Arajet
Deal found 7/6![Arajet logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:04 am
BOS
- EZE
2 stops35h 22m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:04 am
BOS
- AEP
3 stops48h 16m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$323
This Arajet deal was found by Cheapflights users on 7/8. 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 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 7/8![Arajet logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:30 pm
BOS
- EZE
2 stops27h 35m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:04 am
BOS
- AEP
3 stops55h 16m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:04 am
BOS
- EZE
2 stops35h 22m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:05 am
BOS
- EZE
2 stops58h 21m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$334
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 July 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $740 (Expedia) |
One-way from | $199 (Kiwi.com) |
Popular in | July |
Cheapest in | September |
Average price | $1,371 |
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 July 9, 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 - AEP
BOSAEP
Boston Logan Intl
Thu 10/22
7:15 am-6:30 pm
2 stops34h 15m
Buenos Aires Jorge Newbery
Tue 10/27
3:50 pm-4:47 pm
2 stops25h 57m
$793
BostonBuenos Aires
BOS - AEP
BOSAEP
Boston Logan Intl
Wed 9/2
9:55 am-10:30 am
1 stop23h 35m
Buenos Aires Jorge Newbery
Tue 12/8
6:20 pm-6:45 am
1 stop14h 25m
$917
BostonBuenos Aires
BOS - AEP
BOSAEP
Boston Logan Intl
Fri 8/14
3:57 pm-11:20 am
2 stops18h 23m
Buenos Aires Jorge Newbery
Fri 8/28
7:00 am-6:50 am
1 stop24h 50m
$917
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Mon 11/16
8:55 am-1:15 am
1 stop14h 20m
Buenos Aires Ministro Pistarini
Sat 11/21
2:05 am-6:45 am
1 stop30h 40m
$917
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Wed 9/9
3:55 pm-12:51 am
1 stop31h 56m
Buenos Aires Ministro Pistarini
Wed 9/16
4:15 am-11:02 pm
1 stop19h 47m
$920
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Wed 9/9
3:55 pm-12:51 am
1 stop31h 56m
Buenos Aires Ministro Pistarini
Thu 9/17
5:25 am-11:02 pm
1 stop18h 37m
$920
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Tue 10/20
3:10 pm-9:40 am
2 stops17h 30m
Buenos Aires Ministro Pistarini
Sat 11/7
2:05 am-6:45 am
1 stop30h 40m
$926
BostonBuenos Aires
BOS - AEP
BOSAEP
Boston Logan Intl
Sat 10/24
7:15 am-7:40 am
2 stops23h 25m
Buenos Aires Jorge Newbery
Sat 10/31
9:00 pm-3:20 pm
2 stops19h 20m
$932
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Wed 8/12
10:00 am-1:00 am
1 stop14h 00m
Buenos Aires Ministro Pistarini
Sat 8/15
1:10 pm-3:22 pm
1 stop27h 12m
$934
BostonBuenos Aires
BOS - EZE
BOSEZE
Boston Logan Intl
Wed 10/21
8:47 am-12:51 am
1 stop15h 04m
Buenos Aires Ministro Pistarini
Sat 10/24
2:07 am-11:02 pm
1 stop21h 55m
$943
Showing 1-10 of 43 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 July.
| 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, 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 July is currently the most expensive (average of $916). 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?
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.
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 July 9, 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
Overall
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
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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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 July 9, 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 July 9, 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 July 9, 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 July 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$486 | Average$1,072 | 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$1,325 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,036 | Average$1,293 | FlexibilityNo cancel fee | On-time71% |