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Cheap flights from Boston to Buenos Aires from $313

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Buenos Aires departing on 4/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boston to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:55 am - 3:10 pm
BOS
-
EZE
29h 15m
2 stops
Multiple Airlines Logo
7:30 am - 1:55 pm
EZE
-
BOS
31h 25m
2 stops
$671Multiple Airlines
Tue, Mar 17 - Wed, Mar 25
Multiple Airlines Logo
5:45 am - 11:20 am
BOS
-
AEP
28h 35m
3 stops
Multiple Airlines Logo
6:40 am - 3:28 pm
AEP
-
BOS
33h 48m
3 stops
$722Multiple Airlines
Tue, Mar 17 - Wed, Mar 25
Multiple Airlines Logo
6:01 am - 12:30 am
BOS
-
EZE
41h 29m
3 stops
Multiple Airlines Logo
11:30 am - 3:28 pm
EZE
-
BOS
28h 58m
3 stops
$727Multiple Airlines
Mon, Mar 16 - Mon, Mar 30
Arajet Logo
12:15 pm - 3:23 am
BOS
-
EZE
14h 08m
1 stop
Arajet Logo
6:35 am - 10:45 am
EZE
-
BOS
29h 10m
1 stop
$740Arajet
Fri, May 8 - Tue, May 12
Multiple Airlines Logo
6:01 am - 8:30 am
BOS
-
AEP
25h 29m
2 stops
Multiple Airlines Logo
4:50 am - 1:55 pm
AEP
-
BOS
34h 05m
2 stops
$741Multiple Airlines
Fri, Mar 20 - Mon, Mar 30
Multiple Airlines Logo
5:45 am - 11:20 am
BOS
-
AEP
28h 35m
3 stops
Multiple Airlines Logo
4:40 am - 1:55 pm
AEP
-
BOS
34h 15m
2 stops
$742Multiple Airlines
Tue, Mar 17 - Wed, Mar 25
Multiple Airlines Logo
6:01 am - 3:10 pm
BOS
-
EZE
32h 09m
3 stops
Multiple Airlines Logo
7:30 am - 1:55 pm
EZE
-
BOS
31h 25m
2 stops
$755Multiple Airlines
Tue, Mar 17 - Wed, Mar 25
Multiple Airlines Logo
6:01 am - 11:20 am
BOS
-
AEP
28h 19m
3 stops
Multiple Airlines Logo
5:45 am - 3:28 pm
AEP
-
BOS
34h 43m
3 stops
$757Multiple Airlines
Fri, Mar 20 - Mon, Mar 30
Multiple Airlines Logo
6:01 am - 6:40 pm
BOS
-
EZE
35h 39m
3 stops
Multiple Airlines Logo
5:36 am - 3:28 pm
EZE
-
BOS
34h 52m
3 stops
$762Multiple Airlines
Fri, Mar 20 - Mon, Mar 30
Multiple Airlines Logo
5:45 am - 6:20 am
BOS
-
EZE
23h 35m
2 stops
Multiple Airlines Logo
11:30 am - 3:28 pm
EZE
-
BOS
28h 58m
3 stops
$763Multiple Airlines
Mon, Mar 16 - Mon, Mar 30

Air Canada flights from Boston to Buenos Aires

Our best Air Canada deals on Boston to Buenos Aires flight tickets
Air Canada
Apr 1
BOS6:40 pmBoston Logan Intl
18h 50m
2 stops
EZE2:30 pmBuenos Aires Ministro Pistarini
Apr 9
EZE4:30 pmBuenos Aires Ministro Pistarini
18h 19m
2 stops
BOS9:49 amBoston Logan Intl
$874
Air Canada
Mar 18
BOS6:40 pmBoston Logan Intl
43h 30m
3 stops
EZE3:10 pmBuenos Aires Ministro Pistarini
Apr 9
EZE4:30 pmBuenos Aires Ministro Pistarini
26h 27m
2 stops
BOS5:57 pmBoston Logan Intl
$882
Air Canada
Mar 18
BOS6:40 pmBoston Logan Intl
43h 30m
2 stops
EZE3:10 pmBuenos Aires Ministro Pistarini
Apr 9
EZE4:30 pmBuenos Aires Ministro Pistarini
26h 27m
2 stops
BOS5:57 pmBoston Logan Intl
$887

LATAM Airlines flights from Boston to Buenos Aires

Our best LATAM Airlines deals on Boston to Buenos Aires flight tickets
LATAM Airlines
Feb 23
BOS10:03 amBoston Logan Intl
22h 12m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Feb 26
EZE2:45 pmBuenos Aires Ministro Pistarini
17h 50m
2 stops
BOS6:35 amBoston Logan Intl
$860
LATAM Airlines
Feb 23
BOS10:03 amBoston Logan Intl
20h 57m
2 stops
EZE9:00 amBuenos Aires Ministro Pistarini
Feb 26
EZE2:45 pmBuenos Aires Ministro Pistarini
17h 50m
2 stops
BOS6:35 amBoston Logan Intl
$865
LATAM Airlines
Mar 4
BOS10:03 amBoston Logan Intl
19h 17m
2 stops
EZE7:20 amBuenos Aires Ministro Pistarini
Mar 10
EZE2:45 pmBuenos Aires Ministro Pistarini
17h 50m
2 stops
BOS7:35 amBoston Logan Intl
$905

momondo 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, momondo users made 832,500 searches. Data last updated February 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

Price

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Tue 3/17

8:55 am-3:10 pm

2 stops29h 15m

Buenos Aires Ministro Pistarini

Wed 3/25

7:30 am-1:55 pm

2 stops31h 25m

$671

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

Tue 3/17

5:45 am-11:20 am

3 stops28h 35m

Buenos Aires Jorge Newbery

Wed 3/25

6:40 am-3:28 pm

3 stops33h 48m

$722

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Mon 3/16

6:01 am-12:30 am

3 stops41h 29m

Buenos Aires Ministro Pistarini

Mon 3/30

11:30 am-3:28 pm

3 stops28h 58m

$727

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Fri 5/8

12:15 pm-3:23 am

1 stop14h 08m

Buenos Aires Ministro Pistarini

Tue 5/12

6:35 am-10:45 am

1 stop29h 10m

$740

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

Fri 3/20

6:01 am-8:30 am

2 stops25h 29m

Buenos Aires Jorge Newbery

Mon 3/30

4:50 am-1:55 pm

2 stops34h 05m

$741

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

Tue 3/17

5:45 am-11:20 am

3 stops28h 35m

Buenos Aires Jorge Newbery

Wed 3/25

4:40 am-1:55 pm

2 stops34h 15m

$742

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Tue 3/17

6:01 am-3:10 pm

3 stops32h 09m

Buenos Aires Ministro Pistarini

Wed 3/25

7:30 am-1:55 pm

2 stops31h 25m

$755

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

Fri 3/20

6:01 am-11:20 am

3 stops28h 19m

Buenos Aires Jorge Newbery

Mon 3/30

5:45 am-3:28 pm

3 stops34h 43m

$757

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Fri 3/20

6:01 am-6:40 pm

3 stops35h 39m

Buenos Aires Ministro Pistarini

Mon 3/30

5:36 am-3:28 pm

3 stops34h 52m

$762

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Mon 3/16

5:45 am-6:20 am

2 stops23h 35m

Buenos Aires Ministro Pistarini

Mon 3/30

11:30 am-3:28 pm

3 stops28h 58m

$763

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Boston to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Boston is in September. Flight prices, which tend to average around $1,035, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Buenos Aires from Boston during November instead. Flights to Buenos Aires in November, while not as cheap as those in September, still average around $1,083.

How far in advance should I book a flight to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,217 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Boston for as low as $1,038 on momondo.

Can stopping save me money on Boston to Buenos Aires flights?

You could potentially save up to 21% on your flight if you consider stops on a Boston to Buenos Aires flight.

How have Boston to Buenos Aires flight prices changed over time?

As of February 2026, prices for Boston to Buenos Aires flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Buenos Aires (BOS to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Buenos Aires

Fastest flight time

14h 08m

Direct flights

None
The fastest flight from Boston to Buenos Aires takes 14h 08m
There are no direct flights from Boston to Buenos Aires. There are no popular flight routes from Boston to Buenos Aires.
Search flight deals

  • How far is Boston Logan Intl to Buenos Aires by plane?

    Buenos Aires is 5374.8 mi away from Boston Logan Intl. A reasonable flight in good conditions will take 14h 08m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Buenos Aires?

    Prices for flights from Boston Logan Intl Airport to Buenos Aires refresh daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Buenos Aires?

  • How old do you have to be to fly from Boston Logan Intl Airport to Buenos Aires?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Buenos Aires.

  • What documentation or ID do you need to fly to Buenos Aires?

    The travel and health documents required for your trip to Buenos Aires can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Boston to Buenos Aires?

Best airlines flying from Boston to Buenos Aires

Compare and see reviews for airlines that fly from Boston to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $371Free CancellationRating
6.5
2,498 reviews
Search Avianca flights
LATAM AirlinesPriceFrom $486Free CancellationRating
7.5
1,918 reviews
Search LATAM Airlines flights
Copa AirlinesPriceFrom $796Free CancellationRating
7.6
1,558 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $811Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
DeltaPriceFrom $908Free CancellationRating
7.9
8,138 reviews
Search Delta flights
American AirlinesPriceFrom $1,035Free CancellationRating
7.2
11,218 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Buenos Aires?

It is quick and easy to find Boston to Buenos Aires flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Buenos Aires that suits you.

Can I find flights from Boston to Buenos Aires with flexible booking policies on momondo?

momondo does allow users to show only those flights to Buenos Aires from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Buenos Aires?

momondo helps you find the best flight between Boston and Buenos Aires by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Buenos Aires right now. Can momondo alert me if prices change?

Price alerts on flights to Buenos Aires from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Buenos Aires trip

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport