$204 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 $[0,preposition:'from ']$[0,article:'from ']$[0,place:'from'] $[1,preposition:'to ']$[1,article:'to ']$[1,place:'to'] departing on 4/14. 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.
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1 adult, Economy, 0 bags

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Cheap Flights $[0, preposition:'from ']$[0, article:'from ']$[0, place:'from'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to']

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London1 stop$490
Paris
Paris1 stop$450
Rome
Rome2 stops$440
Madrid
Madridnonstop$383
Athens
Athens1 stop$501
Lisbon
Lisbon2 stops$500
Istanbul
Istanbulnonstop$540
Dublin
Dublinnonstop$350
Amsterdam
Amsterdam1 stop$435
Milan
Bergamo2 stops$402
Zurich
Zurich1 stop$471
Copenhagen
Copenhagen1 stop$424
Munich
Munich1 stop$524
Venice
Venice1 stop$390
Reykjavik
Reykjaviknonstop$324
Berlin
Berlin1 stop$431
Edinburgh
Edinburgh2 stops$399
Prague
Prague1 stop$380
London
London1 stop$490
Paris
Paris1 stop$450
Rome
Rome2 stops$440
Madrid
Madridnonstop$383
Athens
Athens1 stop$501
Lisbon
Lisbon2 stops$500
Istanbul
Istanbulnonstop$540
Dublin
Dublinnonstop$350
Amsterdam
Amsterdam1 stop$435
Milan
Bergamo2 stops$402
Zurich
Zurich1 stop$471
Copenhagen
Copenhagen1 stop$424
Munich
Munich1 stop$524
Venice
Venice1 stop$390
Reykjavik
Reykjaviknonstop$324
Berlin
Berlin1 stop$431
Edinburgh
Edinburgh2 stops$399
Prague
Prague1 stop$380

Book Cheap $[0, place:'genitive'] $[1, preposition:'to ']$[1,article:'to ']$[1, place:'to'] Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights $[0,preposition:'from ']$[0,article:'from ']$[0,place:'from'] $[1, preposition:'to ']$[1,article:'to ']$[1, place:'to'] 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 $[0,preposition:'from ']$[0,article:'from ']$[0,place:'from'] $[1,preposition:'to '] $[1,article:'to ']$[1,place:'to']

Wed, Feb 25 - Thu, Mar 5
Delta Logo
10:15 pm - 9:20 am
BOS
-
DUB
6h 05mnonstop
Delta Logo
11:30 am - 1:40 pm
DUB
-
BOS
7h 10mnonstop
$350Delta
Tue, Feb 17 - Mon, Feb 23
United Airlines Logo
12:35 pm - 8:10 am
BOS
-
DUB
14h 35m
1 stop
United Airlines Logo
9:00 am - 3:57 pm
DUB
-
BOS
11h 57m
1 stop
$351United Airlines
Thu, Feb 26 - Tue, Mar 10
Icelandair Logo
7:50 pm - 10:15 am
BOS
-
DUB
9h 25m
1 stop
Icelandair Logo
11:30 am - 6:50 pm
DUB
-
BOS
11h 20m
1 stop
$353Icelandair
Fri, Feb 20 - Sat, Feb 28
TAP AIR PORTUGAL Logo
6:05 pm - 2:05 pm
BOS
-
MAD
14h 00m
1 stop
TAP AIR PORTUGAL Logo
7:40 am - 2:35 pm
MAD
-
BOS
12h 55m
1 stop
$384TAP AIR PORTUGAL
Sun, Apr 26 - Thu, May 7
TAP AIR PORTUGAL Logo
10:45 pm - 7:10 pm
BOS
-
MAD
14h 25m
1 stop
TAP AIR PORTUGAL Logo
4:20 pm - 8:45 pm
MAD
-
BOS
10h 25m
1 stop
$385TAP AIR PORTUGAL
Thu, Apr 23 - Wed, Apr 29
Icelandair Logo
8:50 pm - 2:45 pm
BOS
-
BCN
11h 55m
1 stop
Icelandair Logo
3:45 pm - 9:45 pm
BCN
-
BOS
12h 00m
1 stop
$389Icelandair
Thu, Mar 5 - Mon, Mar 9
Aer Lingus Logo
7:25 pm - 9:15 am
BOS
-
LHR
8h 50m
1 stop
Aer Lingus Logo
10:00 am - 5:50 pm
LHR
-
BOS
11h 50m
1 stop
$490Aer Lingus
Sat, Feb 21 - Sun, Mar 1
Aer Lingus Logo
7:25 pm - 9:15 am
BOS
-
LHR
8h 50m
1 stop
Aer Lingus Logo
10:00 am - 4:50 pm
LHR
-
BOS
11h 50m
1 stop
$491Aer Lingus
Wed, Feb 18 - Sat, Feb 28
Iberia Logo
7:15 pm - 7:00 am
BOS
-
LHR
6h 45mnonstop
Iberia Logo
11:25 am - 7:50 pm
LHR
-
BOS
13h 25m
1 stop
$499Iberia
Mon, Apr 20 - Thu, Apr 30
Iberia Logo
5:40 pm - 11:50 am
BOS
-
LIS
13h 10m
1 stop
Iberia Logo
12:30 pm - 7:50 pm
LIS
-
BOS
12h 20m
1 stop
$507Iberia
Booking Insights

KAYAK's insights & trends for $[0,place:'default'] $[1,preposition:'to ']$[1,article:'to ']$[1,place:'to'] flights

Get data-powered insights and trends into flights $[0,preposition:'from ']$[0,article:'from ']$[0,place:'from'] $[1,preposition:'to ']$[1,article:'to ']$[1,place:'to'] 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 $362 round-trip. The most popular route is from Boston (BOS) to Paris Charles de Gaulle Airport (CDG), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $439.

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 $660, 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 July, when the average cost of round-trip tickets is $797 and $707 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 Thursday, 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 7 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$204
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Boston to Madrid

Flights $[0,preposition:'from ']$[0,article:'from ']$[0,place:'from'] $[1,preposition:'to ']$[1,article:'to ']$[1,place:'to']: the best tips from KAYAK users

Insights shared by verified travelers who flew the route $[0,preposition:'from ']$[0,article:'from ']$[0,place:'from'] $[1,preposition:'to ']$[1,article:'to ']$[1,place:'to'] 
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 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 to Europe.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from 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 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 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 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 to Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

    The cheapest time of day to fly to Europe is generally in the evening, when round-trip flights cost $617 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 $694.

Top tips for finding cheap flights to Europe

  • Looking for a cheap flight? 25% of our users found tickets from to the following destinations at these prices or less: Paris $375 one-way - $592 round-trip; Dublin $327 one-way - $462 round-trip; London $264 one-way - $528 round-trip

Reviews of the top 5 airlines serving $[0, preposition:'from ']$[0, article:'from ']$[0, place:'from ']$[1, preposition:'to ']$[1, article:'to ']$[1, place:'to']

 
Need help choosing which airline to fly with $[0,preposition:'from ']$[0,article:'from ']$[0,place:'from'] $[1,preposition:'to ']$[1,article:'to ']$[1,place:'to']? 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 8166 reviews
8.1Boarding
7.2Food
7.9Comfort
8.5Crew
7.8Entertainment
Airline reviews

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

6.0 GoodCindy, Feb 2026
SMF - GDL
Read more Delta reviews

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

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.

I liked the front row seats. A lot of leg room. The check-in window needs to be longer

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

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.

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

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.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

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

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Getting the boarding passes between the BA and AA apps was very clunky.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

Everything you need to know for your flight to Europe

Information on your arrival and departure airports