BOS - BUE

$280 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 1/6. 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
$835
LATAM Airlines
Fri 3/20Sat 4/11
BOS - AEP • 1 stop
Cheapest one-way
$310
Typical prices: $311-$570
Multiple Airlines
Tue 1/6
BOS - EZE • 2 stops
Video guide: How to find cheap flights to Buenos Aires
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Top airlines
LATAM Airlines
Cheapest • from $870 (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 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 11% 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, Mar 20 - Sat, Apr 11
LATAM Airlines Logo
9:55 am - 11:45 am
BOS
-
AEP
24h 50m1 stop
LATAM Airlines Logo
5:05 pm - 11:33 pm
AEP
-
BOS
31h 28m2 stops
$835LATAM Airlines
Mon, Jan 12 - Tue, Jan 27
Multiple Airlines Logo
5:23 pm - 3:40 am
BOS
-
AEP
32h 17m3 stops
Multiple Airlines Logo
9:50 am - 4:19 pm
AEP
-
BOS
32h 29m3 stops
$860Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
Air Canada Logo
3:35 pm - 2:25 pm
BOS
-
EZE
21h 50m2 stops
Air Canada Logo
4:35 pm - 5:57 pm
EZE
-
BOS
26h 22m2 stops
$863Air Canada
Tue, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
5:23 pm - 3:40 am
BOS
-
EZE
32h 17m3 stops
Multiple Airlines Logo
6:40 am - 4:19 pm
EZE
-
BOS
35h 39m3 stops
$864Multiple Airlines
Mon, Jan 12 - Tue, Jan 27
Multiple Airlines Logo
5:23 pm - 6:55 am
BOS
-
EZE
35h 32m3 stops
Multiple Airlines Logo
6:40 am - 4:19 pm
EZE
-
BOS
35h 39m3 stops
$867Multiple Airlines
Fri, May 8 - Wed, May 20
Air Canada Logo
6:00 am - 2:30 pm
BOS
-
EZE
31h 30m2 stops
Air Canada Logo
4:35 pm - 2:31 pm
EZE
-
BOS
22h 56m2 stops
$868Air Canada
Wed, Mar 18 - Thu, Apr 9
Air Canada Logo
6:40 pm - 3:10 pm
BOS
-
EZE
43h 30m3 stops
Air Canada Logo
4:35 pm - 5:57 pm
EZE
-
BOS
26h 22m2 stops
$869Air Canada
Thu, Mar 19 - Mon, Mar 23
LATAM Airlines Logo
3:15 pm - 10:30 am
BOS
-
AEP
18h 15m2 stops
LATAM Airlines Logo
5:15 pm - 2:38 pm
AEP
-
BOS
22h 23m2 stops
$870LATAM Airlines
Sat, Mar 7 - Fri, Mar 20
Multiple Airlines Logo
7:55 am - 3:10 pm
BOS
-
EZE
29h 15m2 stops
Multiple Airlines Logo
12:00 pm - 9:27 pm
EZE
-
BOS
34h 27m3 stops
$870Multiple Airlines
Sun, Feb 15 - Thu, Feb 19
LATAM Airlines Logo
10:03 am - 9:00 am
BOS
-
EZE
20h 57m2 stops
LATAM Airlines Logo
2:30 am - 11:59 pm
EZE
-
BOS
23h 29m2 stops
$875LATAM 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.

How much is a round-trip flight from Boston to Buenos Aires?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Buenos Aires departing in March.

What’s the cheapest day of the week to fly from Boston to Buenos Aires?

The average price of all round-trip flights from Boston to Buenos Aires clicked on KAYAK for each day over the last 12 months.

For Boston to Buenos Aires, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Buenos Aires back to Boston, the best deals are generally found on Wednesday, with Sunday being the most expensive.

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 February, where the average cost of round-trip tickets is $1,250 and $1,220 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 25% 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$310
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Boston to Buenos Aires

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 $280 for a one-way ticket and $835 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 Copa Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Buenos Aires are Delta and Copa Airlines. With an average price for the route of $1,165 and an overall rating of 7.9, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of $1,115 and an overall rating of 7.6.

  • 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 8013 reviews
7.3Food
7.9Comfort
7.9Entertainment
8.5Crew
8.1Boarding
Airline reviews

The food is terrible. The staff is wonderful. Comfort is good.

10.0 ExcellentRonda, Dec 2025
JAX - JFK
Read more Delta reviews

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

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.

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.

Did upgrade, travel in business it was great (more room I could sleep)

Seats not reclining, no vegetarian food option, no snacks. 7.5 hr flight should have been more comfortable. Luggage limits are unusually small. Will never fly Copa again and will tell friends and family to avoid this airline.

Placed us in the last rear row of the plane so could not recline seats because of the rear wall, and also made it more of a tight space when the passenger in front reclined their seat. While understand seat assignments, every passenger should be afforded a reclining seat. The odor control scent from the restrooms was overwhelming strong. My wife and I could not deal with it, and she suffered a terrible headache as a result. I kept getting hit by the crew since I was on the ilse seat. No apologies, nothing. They made me feel like I was supposed to take the beating for a 3 hr flight.

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.

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 .

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

Really bad experience – delayed for 6 hours without any notice, no food or drinks provided, and stuck in the horrible Cartagena airport.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight and crew were great. United didn't inform crew of immigration process which was disappointing!

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

AA delayed the flight for 3 hours and 50 minutes, but delayed the last 2 hours, 30 minutes at a time, so if we knew before, could have stayed at home and worked instead of being at the airport wasting time... The plane's crew was excellent, not their fault.

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

RIC Staff was not enough. Elderly passengers had to wait 30 minutes to deplane, so we could board and still had to walk as no chairs were provided. And, passenger in front of my seat assignment rammed seat against my legs entire flight time. Was mildly bruised and left thigh still sore.

Liked that it was on time. Staff professional and friendly.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

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

Information on your arrival and departure airports