$224 Find Cheap Flights from Boston to Europe

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 Europe departing on 8/16. 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

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Cheap Flights from Boston to Europe

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London1 stop$493
Paris
Paris1 stop$464
Rome
Rome2 stops$462
Madrid
Madrid1 stop$402
Athens
Athens1 stop$526
Lisbon
Lisbon1 stop$515
Istanbul
Istanbulnonstop$556
Dublin
Dublin1 stop$354
Amsterdam
Amsterdam1 stop$464
Milan
Milan1 stop$458
Zurich
Zurich2 stops$523
Copenhagen
Copenhagen1 stop$419
Munich
Munich1 stop$549
Venice
Venice1 stop$422
Berlin
Berlin2 stops$484
Edinburgh
Edinburgh2 stops$540
Prague
Prague1 stop$421
London
London1 stop$493
Paris
Paris1 stop$464
Rome
Rome2 stops$462
Madrid
Madrid1 stop$402
Athens
Athens1 stop$526
Lisbon
Lisbon1 stop$515
Istanbul
Istanbulnonstop$556
Dublin
Dublin1 stop$354
Amsterdam
Amsterdam1 stop$464
Milan
Milan1 stop$458
Zurich
Zurich2 stops$523
Copenhagen
Copenhagen1 stop$419
Munich
Munich1 stop$549
Venice
Venice1 stop$422
Berlin
Berlin2 stops$484
Edinburgh
Edinburgh2 stops$540
Prague
Prague1 stop$421

Book Cheap Boston to Europe Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Europe 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 Europe

lun., may. 11 - jue., may. 21
Icelandair Logo
11:00 pm - 1:15 pm
BOS
-
DUB
9h 15m
1 stop
Icelandair Logo
2:15 pm - 9:45 pm
DUB
-
BOS
12h 30m
1 stop
$354Icelandair
dom., mar. 29 - mar., abr. 14
Icelandair Logo
8:50 pm - 1:15 pm
BOS
-
DUB
11h 25m
1 stop
Icelandair Logo
2:15 pm - 6:50 pm
DUB
-
BOS
9h 35m
1 stop
$359Icelandair
mié., mar. 25 - mié., abr. 22
Icelandair Logo
12:35 pm - 10:15 am
BOS
-
DUB
17h 40m
1 stop
Icelandair Logo
12:15 pm - 6:50 pm
DUB
-
BOS
11h 35m
1 stop
$363Icelandair
lun., abr. 27 - dom., may. 3
TAP AIR PORTUGAL Logo
6:05 pm - 12:20 am
BOS
-
MAD
24h 15m
1 stop
TAP AIR PORTUGAL Logo
6:35 am - 8:20 pm
MAD
-
BOS
19h 45m
1 stop
$402TAP AIR PORTUGAL
dom., abr. 26 - mar., may. 5
TAP AIR PORTUGAL Logo
10:40 pm - 5:20 pm
BOS
-
MAD
12h 40m
1 stop
TAP AIR PORTUGAL Logo
11:05 am - 8:20 pm
MAD
-
BOS
15h 15m
1 stop
$409TAP AIR PORTUGAL
mié., abr. 1 - mié., abr. 8
SWISS Logo
5:20 pm - 8:40 am
BOS
-
LCY
10h 20m
1 stop
SWISS Logo
1:10 pm - 7:55 pm
LCY
-
BOS
11h 45m
1 stop
$619SWISS
mié., abr. 1 - sáb., abr. 4
SWISS Logo
5:20 pm - 8:40 am
BOS
-
LCY
10h 20m
1 stop
SWISS Logo
9:00 am - 3:10 pm
LCY
-
BOS
11h 10m
1 stop
$624SWISS
mié., abr. 8 - mié., abr. 15
Delta Logo
4:35 pm - 7:55 am
BOS
-
LCY
10h 20m
1 stop
Delta Logo
8:25 am - 4:25 pm
LCY
-
BOS
13h 00m
1 stop
$632Delta
dom., abr. 5 - dom., abr. 12
ITA Airways Logo
5:05 pm - 3:55 pm
BOS
-
LCY
17h 50m
2 stops
ITA Airways Logo
4:30 pm - 1:40 pm
LCY
-
BOS
26h 10m
2 stops
$635ITA Airways
dom., abr. 26 - mar., may. 5
ITA Airways Logo
5:05 pm - 3:55 pm
BOS
-
LCY
17h 50m
2 stops
ITA Airways Logo
7:25 pm - 1:40 pm
LCY
-
BOS
23h 15m
2 stops
$636ITA Airways
Booking Insights

KAYAK's insights & trends for Boston to Europe flights

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

What is the cheapest Boston to Europe flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Europe from Boston found in the last 72 hours was to Vienna, at $384 round-trip. The most popular route is from Boston (BOS) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $474.

What is the cheapest time of day to fly to Europe?

The average price for all round-trip flights from Boston to Europe depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Europe is generally in the evening, when round-trip flights cost $613 on average. Morning departures are around 7% more expensive than evening flights, on average. The most expensive time of day to fly to Europe is generally at night, which is peak travel time and where the average cost of a ticket is $691.

Can I save money by flying with a layover from Boston to Europe?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $697, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Boston to Europe?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Europe, 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 Europe is October, when tickets cost $517 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $777 and $697 respectively.

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

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

Your flight ticket price will generally be cheaper if you fly to Europe on a Tuesday and more expensive on a Saturday. On your return trip to Boston, you should consider flying back on a Wednesday, and avoid Saturdays for better deals.

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

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 Europe, 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 Europe, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$224
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Boston to London Heathrow Airport

Flights from Boston to Europe: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Boston to Europe 
MarilynFlew with British Airways
BOS
-
LHR
Feb 2026
Meeting a friend at Heathrow was difficult as there are many terminals so far apart. Access to the train was great and an easy way to get to the downtown area.
LisaFlew with Aer Lingus
BOS
-
DUB
Dec 2025
Look at Jet Blue and Delta. May be a bit more expensive but keep an eye out for fare reductions and book early.
Verified travelerFlew with Aer Lingus
BOS
-
DUB
Jul 2025
Whatever airline you choose, spring for a class with more leg and overall body room than economy (or whatever the cheapest class is called).
PatrickFlew with Delta
BOS
-
AMS
Jun 2025
Be prepared for a very confusing time in Schipol airport where directional signage is not helpful. In one visit our group had to be escorted to the particular carrier’s desk as we were told we’d not be able to find it ourselves.
Verified travelerFlew with Scandinavian Airlines
BOS
-
CPH
Sep 2024
Check with the airline and validate that all of the advertised benefits are indeed available. Paying higher price for the Economy Plus tickets may not be worth it for you as a number of advertised benefits are not available, definitely not in Boston
YvetteFlew with SWISS
BOS
-
ZRH
Nov 2024
You pay for everything on Swiss air. The airport in Zurich is large, so does not leave a lot of time to get between gates if your flight is in another terminal.
Verified travelerFlew with Austrian Airlines
BOS
-
VIE
Oct 2024
Cost was reasonable. Crew was efficient and kind. Air terminal in Vienna is easy to navigate. Wish there were better food options.
BradFlew with Iberia
BOS
-
MAD
Oct 2024
Make sure to book your own seats and don’t leave it up to someone else. We were supposed to have window and aisle seats and did not. We had to sit in the middle of the plane which is cramped and difficult to move let alone eat.
JonFlew with Scandinavian Airlines
BOS
-
CPH
Jun 2024
Be prepared for a possibly short layover between flights. Mine was only 45 minutes and needed most of that time to clear passport control and get across the airport. That said - it seemed that the SAS crews were used to that. On the plus side there was no waiting in the terminal.
Verified travelerFlew with Iberia
BOS
-
MAD
Jul 2024
Good luck- have your phone charged and your confirmation number handy
BarbaraFlew with Aer Lingus
BOS
-
DUB
May 2024
Pack what you need in a carryon since it is likely you'll arrive without luggage.
MaximFlew with TAP AIR PORTUGAL
BOS
-
LIS
Mar 2024
I was waiting for a flight boarding announcement in the Lounge in terminal C at Logan Airport in Boston, but the announcement never came. If I did not go to the gate to check, I might have missed the flight. So, do not count on the airline to communicate flight boarding information to the lounge staff. They are supposed to do that, but, apparently, sometimes it does not happen.
Verified travelerFlew with British Airways
BOS
-
LHR
Jan 2024
Leave plenty of time if connecting in London as most connecting flights are in a different terminal which requires a bus or tram ride. Also if you’re not at the gate 30 minutes ahead they will not let you on the plane. Apparently this is a Heathrow not airline rule.

FAQs - booking Europe flights

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

    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 Europe.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Europe 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 Europe?

    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 from Boston to Europe with an airline and back with another airline.

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

    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 from Boston to Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Europe

  • Looking for a cheap flight? 25% of our users found tickets from Boston to the following destinations at these prices or less: Dublin $345 one-way - $468 round-trip; London $317 one-way - $550 round-trip; Lisbon $364 one-way - $704 round-trip

Reviews of the top 5 airlines serving from Boston to Europe

 
Need help choosing which airline to fly with from Boston to Europe? 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 8284 reviews
7.2Food
7.9Comfort
8.1Boarding
8.5Crew
7.8Entertainment
Airline reviews

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

2.0 MediocreIsabella, Mar 2026
SLC - AUS
Read more Delta reviews

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

Delayed. Hot. Passenger next to me was so large I couldn’t move.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

The boarding process doesn't make sense since some people that will sit behind your rows are boarded before you and then they take up the luggage space above your head. I then have to wait for people to get off the plane before I can go back to get my luggage.

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

Well, I think we left close to on time. Crew was “eh”.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

Food was just okay. Was surprised initially when was charged for a cup of tea when they first came through cabin for beverages. I’ve had far better long distance flights ( take some tips from Swiss airlines)

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

Awful. They didn't even show concern that her connecting flight( Dallas to Mardrid) was gone/missing. I don't understand how that is even possible. Rudest answer from one of the crew was that American Airlines sold the tickets to somebody else. My daughter was not in the list.

The flight was canceled on a Thursday last minute. I lost thousands of dollars in hotels and car rental

Excellent lie flat seat for premium economy! Great staff. Bad food . Not so great entertainment. My bag didn’t make it either.

Really like the idea experience on this airline I will use again

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Excellent service; they helped me reschedule so I can fly in an earlier flight

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Everything you need to know for your flight to Europe

Information on your arrival and departure airports