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Cheap flights from Boston to Buenos Aires from $308

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 8/9. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to Buenos Aires.
 Logo
9:00 am - 9:20 amBOS-AEP
23h 20m2 stops
 Logo
9:00 am - 7:15 amAEP-BOS
23h 15m2 stops
Thu, May 8 - Wed, May 21
LATAM Airlines Logo
9:55 am - 10:30 amBOS-AEP
23h 35m1 stop
LATAM Airlines Logo
10:35 am - 3:31 pmAEP-BOS
29h 56m2 stops
$776LATAM Airlines
Find Deal
Thu, May 8 - Wed, May 14
Avianca Logo
9:00 am - 4:25 amBOS-EZE
18h 25m2 stops
Avianca Logo
5:30 am - 7:15 amEZE-BOS
26h 45m2 stops
$815Avianca
Find Deal
Tue, May 13 - Wed, May 28
Avianca Logo
9:00 am - 12:10 amBOS-EZE
14h 10m1 stop
Avianca Logo
5:30 am - 7:15 amEZE-BOS
26h 45m2 stops
$822Avianca
Find Deal
Tue, May 13 - Wed, May 28
Delta Logo
9:55 am - 12:50 amBOS-EZE
13h 55m1 stop
Delta Logo
8:10 pm - 11:06 amEZE-BOS
15h 56m1 stop
$1,031Delta
Find Deal
Mon, Sep 1 - Tue, Sep 16
United Airlines Logo
11:00 am - 8:00 amBOS-EZE
20h 00m2 stops
United Airlines Logo
9:00 pm - 12:35 pmEZE-BOS
16h 35m1 stop
$1,035United Airlines
Find Deal
Thu, Sep 4 - Tue, Sep 16
United Airlines Logo
6:00 am - 8:00 amBOS-EZE
25h 00m2 stops
United Airlines Logo
9:00 pm - 4:25 pmEZE-BOS
20h 25m2 stops
$1,040United Airlines
Find Deal
Mon, Sep 1 - Mon, Sep 15
Delta Logo
9:55 am - 12:50 amBOS-EZE
13h 55m1 stop
Delta Logo
8:10 pm - 1:00 amEZE-BOS
29h 50m1 stop
$1,041Delta
Find Deal
Mon, Sep 1 - Thu, Sep 18
American Airlines Logo
5:59 pm - 10:15 amBOS-EZE
15h 16m1 stop
American Airlines Logo
9:15 pm - 5:18 pmEZE-BOS
21h 03m1 stop
$1,085American Airlines
Find Deal
Mon, Jun 16 - Tue, Jul 8
American Airlines Logo
7:41 am - 7:35 amBOS-EZE
22h 54m1 stop
American Airlines Logo
10:00 pm - 11:50 amEZE-BOS
14h 50m1 stop
$1,090American Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21

Delta flights from Boston to Buenos Aires

Our best Delta deals on Boston to Buenos Aires flight tickets
Delta
Sep 1
BOS9:55 amBoston Logan Intl
13h 55m
1 stop
EZE12:50 amBuenos Aires Ministro Pistarini
Sep 16
EZE8:10 pmBuenos Aires Ministro Pistarini
15h 56m
1 stop
BOS11:06 amBoston Logan Intl
Delta
Sep 1
BOS9:55 amBoston Logan Intl
13h 55m
1 stop
EZE12:50 amBuenos Aires Ministro Pistarini
Sep 18
EZE8:10 pmBuenos Aires Ministro Pistarini
29h 50m
1 stop
BOS1:00 amBoston Logan Intl
Delta
Sep 2
BOS6:45 pmBoston Logan Intl
14h 00m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Sep 19
EZE6:40 amBuenos Aires Ministro Pistarini
25h 55m
1 stop
BOS7:35 amBoston Logan Intl

United Airlines flights from Boston to Buenos Aires

Our best United Airlines deals on Boston to Buenos Aires flight tickets
United Airlines
Sep 4
BOS11:00 amBoston Logan Intl
20h 00m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 16
EZE9:00 pmBuenos Aires Ministro Pistarini
16h 35m
1 stop
BOS12:35 pmBoston Logan Intl
United Airlines
Sep 1
BOS6:00 amBoston Logan Intl
25h 00m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 15
EZE9:00 pmBuenos Aires Ministro Pistarini
20h 25m
2 stops
BOS4:25 pmBoston Logan Intl
United Airlines
Aug 31
BOS5:15 pmBoston Logan Intl
37h 45m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 16
EZE9:00 pmBuenos Aires Ministro Pistarini
16h 35m
1 stop
BOS12:35 pmBoston Logan Intl

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 October. Flight prices, which tend to average around $1,059, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Buenos Aires from Boston during June instead. Flights to Buenos Aires in June, while not as cheap as those in October, still average around $1,075.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from Boston is on a Monday. momondo users have found tickets for Monday departures for as low as $1,088. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Friday is $1,303.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our most recent data shows that the best time of day to fly to Buenos Aires is in the morning. Flights from Boston to Buenos Aires during this time can be as low as $1,079. Try not to purchase tickets at noon because they tend to be around $1,280. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 9 weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,191 when searching 9 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 $1,021 on momondo.

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

As of April 2025, prices for Boston to Buenos Aires flights are approximately 9% 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

Best Price Found

$308

Fastest flight time

13h 55m

Direct flights

None

Airports in Buenos Aires

2 airports
The best one-way flight to Buenos Aires from Boston in the past 72 hours is $308. The best round-trip flight deal from Boston to Buenos Aires found on momondo in the last 72 hours is $756.
The fastest flight from Boston to Buenos Aires takes 13h 55m
There are no direct flights from Boston to Buenos Aires. Popular non-direct routes for this connection are Boston Logan Intl Airport - Buenos Aires Jorge Newbery Airport and Boston Logan Intl Airport - Buenos Aires Ministro Pistarini Airport.
There are 2 airports near Buenos Aires: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP)

  • 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 13h 55m.

  • 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
LATAM AirlinesPriceFrom $512Free CancellationRating
7.5
1,761 reviews
Search LATAM Airlines flights
AviancaPriceFrom $603Free CancellationRating
6.7
2,316 reviews
Search Avianca flights
Copa AirlinesPriceFrom $649Free CancellationRating
7.5
1,409 reviews
Search Copa Airlines flights
Air CanadaPriceFrom $849Free CancellationRating
7.0
9,139 reviews
Search Air Canada flights
American AirlinesPriceFrom $962Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $993Free CancellationRating
7.4
8,667 reviews
Search United Airlines flights
DeltaPriceFrom $998Free CancellationRating
8.0
7,916 reviews
Search Delta 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.


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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