BOS - BUE

$282 Find Cheap Flights from Boston to Buenos Aires

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Buenos Aires departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Buenos Aires

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Buenos Aires.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Buenos Aires.
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Everything you should know

Cheapest round-trip
$618
Overall average: $1,235
Arajet
Fri 5/1Tue 5/12
BOS - EZE • 1 stop
Cheapest one-way
$282
Multiple Airlines
Wed 6/3
BOS - AEP • 3 stops
Video guide: How to find cheap flights to Buenos Aires
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Top airlines
Arajet
Cheapest • from $618 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 10% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Buenos Aires (BOS-BUE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Buenos Aires that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Buenos Aires

Fri, May 1 - Tue, May 12
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
$618Arajet
Fri, May 1 - Tue, May 12
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
$638Arajet
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
6:01 am - 8:30 am
BOS
-
AEP
25h 29m
2 stops
Multiple Airlines Logo
4:40 am - 1:55 pm
AEP
-
BOS
34h 15m
2 stops
$655Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
6:01 am - 8:30 am
BOS
-
AEP
25h 29m
2 stops
Multiple Airlines Logo
9:35 am - 1:55 pm
AEP
-
BOS
29h 20m
3 stops
$714Multiple Airlines
Fri, May 1 - Tue, May 12
Multiple Airlines Logo
12:15 pm - 3:23 am
BOS
-
EZE
14h 08m
1 stop
Multiple Airlines Logo
7:35 am - 10:45 am
EZE
-
BOS
28h 10m
3 stops
$724Multiple Airlines
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
6:01 am - 4:06 am
BOS
-
EZE
21h 05m
2 stops
Multiple Airlines Logo
5:35 am - 1:55 pm
EZE
-
BOS
33h 20m
2 stops
$734Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
6:01 am - 8:30 am
BOS
-
AEP
25h 29m
2 stops
Multiple Airlines Logo
4:40 am - 1:55 pm
AEP
-
BOS
34h 15m
2 stops
$747Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
6:01 am - 8:30 am
BOS
-
AEP
25h 29m
2 stops
Multiple Airlines Logo
5:45 am - 1:55 pm
AEP
-
BOS
33h 10m
3 stops
$748Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
6:01 am - 11:20 am
BOS
-
AEP
28h 19m
3 stops
Multiple Airlines Logo
9:35 am - 1:55 pm
AEP
-
BOS
29h 20m
3 stops
$751Multiple Airlines
Sun, Mar 8 - Tue, Mar 10
LATAM Airlines Logo
3:15 pm - 6:40 pm
BOS
-
AEP
26h 25m
2 stops
LATAM Airlines Logo
6:20 pm - 7:35 am
AEP
-
BOS
14h 15m
1 stop
$812LATAM Airlines
Booking Insights

KAYAK's insights & trends for Boston to Buenos Aires flights

Get data-powered insights and trends into flights from Boston to Buenos Aires to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to Buenos Aires
Find cheap flights to Buenos Aires

Planning a trip from Boston to Buenos Aires? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What is the cheapest month to fly from Boston to Buenos Aires?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Buenos Aires, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Buenos Aires is September, where tickets cost $1,035 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,287 and $1,215 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Buenos Aires, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Buenos Aires, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$282
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from Boston to Buenos Aires Jorge Newbery

When to book flights from Boston to Buenos Aires

Are your dates flexible? Find out the best times to travel from Boston to Buenos Aires based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Buenos Aires

  • Are there family-friendly flights from Boston to Buenos Aires?

    Traveling with kids can be a challenging endeavor. That's why you need to choose your flights carefully. When traveling from Boston to Buenos Aires, consider reserving your ticket with American Airlines to enjoy family-friendly travel. The airline provides real toys and Tv show entertainment to keep them energized. Also, they carry unlimited diapers onboard and allow strollers and bassinets on advance request.

  • Which airlines consider persons with limited mobility from Boston to Buenos Aires?

    Persons with reduced mobility are highly welcomed on this route. Delta Airlines provides meet-and-assist services to heighten their experience. Besides, they provide a wheelchair to facilitate movement, so you don't have to strain from check-in point to departure. The airline also offers top-of-the-line in-flight services and amenities to facilitate movement, such as accessing restrooms.

  • Can I travel with my pet from Boston to Buenos Aires?

    Multiple airlines offer pet-friendly flights. If you want to travel from Boston to Buenos Aires with your pet, consider reserving your ticket with American Airlines. The airline allows passengers to ride with their small pets in the cabin. They require you to keep the pet in a small carrier under the seat. Bigger pets are transported in cargo for comfort and safety. Increasingly, they have pocket-friendly charges.

  • How can I connect from Buenos Aires Ministro Pistarini Airport to downtown Bueno Aires?

    Three bus lines operate between EZE and the city center. Line 8, Line 51, and Line 394 operate 24/7 on the route, providing a reliable cost-savvy way to get to the city center. These buses take about 9 minutes, 60 minutes, and 45 minutes respectively, to get to the city center. Taxis are also available on this route, providing the most convenient way to get to the city center, taking about 4 minutes.

  • What is the cheapest flight from Boston to Buenos Aires?

    In the last 3 days, the lowest price for a flight from Boston to Buenos Aires was $282 for a one-way ticket and $618 for a round-trip.

  • Do I need a passport to fly between Boston and Buenos Aires?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Buenos Aires.

  • Which aircraft models fly most regularly from Boston to Buenos Aires?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Buenos Aires?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Boston and Buenos Aires, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Buenos Aires from Boston?

    New York is the most popular layover city among KAYAK users traveling from Boston to Buenos Aires.

  • Which is the best airline for flights from Boston to Buenos Aires, Delta or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Buenos Aires are Delta and LATAM Airlines. With an average price for the route of $1,169 and an overall rating of 7.9, Delta is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of $982 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Boston to Buenos Aires?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Buenos Aires.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Buenos Aires?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Buenos Aires?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buenos Aires with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Buenos Aires?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buenos Aires from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Buenos Aires

  • When traveling from Boston to Buenos Aires, you’ll depart from Boston Logan Airport (BOS) and land at Buenos Aires Ministro Pistarini Airport (EZE). Airlines to expect on the route include Copa Airlines, LATAM Airlines, Delta, United Airlines, American Airlines, and Avianca. Delta Airlines fly sustainably by actively implementing flight sustainability policies, leading to less carbon emissions.
  • Multiple airlines offer various flight options from Boston to Buenos Aires. To this end, expect to have at least one stopover. The common layover cities are Sao Paulo, Rio de Janeiro, Washington, D. C, Montreal, Toronto, New York, and Punta Cuna. Other flights will stop in Sacramento, Orlando, Miami, Mexico City, Panama, Zurich, and Istanbul.
  • Since EZE is a central hub for LATAM Airlines, consider reserving your flight with the airline to enjoy an unparalleled treat at the LATAM VIP Lounge. The lounge allows passengers flying with LATAM Airlines to relax and enjoy complimentary drinks, food, and entertainment.
  • Suppose you have an early morning flight; consider sleeping near the airport by booking a hotel, and gain the convenience of accessing the airport. Thatch Quarters on Broadway, HI Boston Hotel, Hilton Garden Inn Boston Logan Airport, Hampton Inn Boston-Logan Airport, and DoubleTree by Hilton Boston Bayside are worth sleeping in. Alternatively, check in at Boston Homestel and conveniently access BOS for your early flight.
  • After landing at EZE, you can visit several other top places, including cities. You can visit Burzaco, General Rodriguez, Merlo City, Rafael Castillo, Trujui, and Ensenada. The good news is that you have a wide range of airlines operating from the airport, including LATAM Airlines, Copa Airlines, Delta, and Avianca.

Reviews of the top 5 airlines serving from Boston to Buenos Aires

 
See real verified KAYAK customer reviews for airlines flying from Boston to Buenos Aires. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Buenos Aires? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8204 reviews
7.2Food
7.8Entertainment
8.1Boarding
7.9Comfort
8.5Crew
Airline reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

10.0 ExcellentSoosnata, Feb 2026
LAX - HNL
Read more Delta reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

This was my first time flying Delta ever and I had a great experience!

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

Excellent!!! Aeromexico is a great airline. What was not that good is the service provided by Kayak. It is never clear and not easy to manage.

Apart of Sky miles delta. And they go everywhere in Brazil

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

I like this airline a lot no problems at all, except being forced to check a carry-on bag ., Overall very good airline

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

Check in -- in business took over 30 mins as there was only one attendant. Boarding was also a mess. The seat was too narrow and was not working properly. Food was very bad and the entertainment very poor. Crew was very polite and helpful, in fairness.

The way the Pilot made all announcements, specially the way he congratulated the entire crew as the best team ever, making a comment that due to them they were able to shorter the delay to the destination. Amazing flight .

we were missing our luggage, trying to find someone to have any empathy was pretty much not happening....

The plane broke down at the Lima stopover and they offered to put me on a flight the be t day but I had to be back in LA that morning and so I had to buy another ticket from Avianca and United for $2k I asked LATAM for compensation and received none. Very bad experience

Horrible. No TV or any type of entertainment on board. Passwnger listening to/watching stuff on their own phone with no headphones making it noise and uncomfortable for everyone else, little/tiny food portions, old seats, useless wifi (cant access anything). Horrible exlerience especially it was a lomg distance flight with kids.

There should be a warning regarding the quality of the aircraft on the website as we reserve the tickets. There was no TV or any type of screen onboard. The wifi they offer is good for nothing. Traveling 9 hours straight with kids and no type of entetainment was horrible. I wish I had been informed prior so I could buy a ticket with another airline. The food was a joke too. A very tiny portion per passenger. They also charged $100 per checked bag. With United I used to pay $60. So, fair to say that I wont be flying Copa anymore. Their aircraft was super old, outdated, no entertainment, with nearly no onboard food.

I always enjoy flying Copa. There are very few airlines where I can enjoy a comfortable sleep in-flight. The snacks weren't the best, but they sufficed. The in-flight entertainment was fantastic, and I crossed another movie off my watch list.

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

Great experience with a crew always thinking in the passenger

Very happy with my flight. I would definitely recommend it.

Entertainment kept turning itself off. Gave up on watching a movie.

Both the WIFI and entertainment did not work for 2.5h

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Both of my flights arrived early and check in process was smooth

The smell from the bathroom kept wafting through the cabin. It made people sick.

The flight was really crowded. Flight attendants were just ok.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Didn't get a seat assignment until the last minute even though i picked a seat.

American has been able to implement an algorithm that makes it possible for nearly every one of my evening flights to be late. Congratulations!

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

The flight was fine, once we got underway. It was more than hour delayed

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Waited for oxygen tanks for 30 minutes after boarding was complete.

The seats are too uncomfortable for anyone over 5ft 8in. I'm 5'10" with a back and hip issue and I was in pai for the full duration of the flight.

Everything you need to know for your flight from Boston to Buenos Aires

Information on your arrival and departure airports