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Cheap flights from Boston to Europe from $184

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Europe departing on 10/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boston to Europe

Cheap round-trip flights

United Airlines Logo
6:00 am - 9:45 amBOS-DUB
22h 45m1 stop
United Airlines Logo
8:00 am - 6:50 pmDUB-BOS
38h 50m2 stops
$343United Airlines
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Fri, Oct 24 - Sat, Nov 1
Delta Logo
10:05 pm - 9:20 amBOS-DUB
6h 15mnonstop
Delta Logo
9:45 am - 11:59 pmDUB-BOS
19h 14m1 stop
$344Delta
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Thu, Dec 4 - Thu, Dec 11
British Airways Logo
2:56 pm - 9:35 amBOS-MAD
12h 39m1 stop
British Airways Logo
10:25 am - 10:19 pmMAD-BOS
17h 54m1 stop
$353British Airways
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Tue, Sep 30 - Tue, Oct 7
British Airways Logo
9:35 pm - 4:55 pmBOS-MAD
13h 20m1 stop
British Airways Logo
11:00 am - 10:47 pmMAD-BOS
17h 47m1 stop
$354British Airways
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Wed, Nov 5 - Tue, Nov 11
Icelandair Logo
8:50 pm - 1:15 pmBOS-DUB
11h 25m1 stop
Icelandair Logo
12:15 pm - 6:50 pmDUB-BOS
11h 35m1 stop
$362Icelandair
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Wed, Oct 1 - Sun, Oct 5
Aer Lingus Logo
5:10 pm - 9:55 amBOS-MAD
10h 45m1 stop
Aer Lingus Logo
11:05 am - 6:55 pmMAD-BOS
13h 50m1 stop
$367Aer Lingus
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Sun, Nov 2 - Fri, Nov 7
Aer Lingus Logo
5:10 pm - 9:55 amBOS-MAD
10h 45m1 stop
Aer Lingus Logo
10:40 am - 6:55 pmMAD-BOS
14h 15m1 stop
$375Aer Lingus
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Fri, Nov 7 - Tue, Nov 11
TAP AIR PORTUGAL Logo
6:05 pm - 2:05 pmBOS-MAD
14h 00m1 stop
TAP AIR PORTUGAL Logo
12:10 pm - 8:10 pmMAD-BOS
14h 00m1 stop
$381TAP AIR PORTUGAL
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Sun, Nov 16 - Sat, Nov 22
TAP AIR PORTUGAL Logo
6:05 pm - 6:45 pmBOS-FCO
18h 40m1 stop
TAP AIR PORTUGAL Logo
5:45 am - 8:10 pmFCO-BOS
20h 25m1 stop
$410TAP AIR PORTUGAL
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Mon, Feb 2 - Sun, Feb 15
Icelandair Logo
8:50 pm - 2:35 pmBOS-FCO
11h 45m1 stop
Icelandair Logo
11:25 am - 5:50 pmFCO-BOS
12h 25m1 stop
$413Icelandair
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Sun, Sep 28 - Thu, Feb 12

Finnair flights from Boston to Europe

Our best Finnair deals on Boston to Europe flight tickets
Finnair
Nov 4
BOS4:50 pmBoston Logan Intl
7h 00m
MAD5:50 amMadrid Barajas
Nov 11
MAD12:30 pmMadrid Barajas
8h 45m
BOS3:15 pmBoston Logan Intl
$359
Find similar
Finnair
Oct 27
BOS10:20 pmBoston Logan Intl
7h 00m
MAD10:20 amMadrid Barajas
Nov 4
MAD12:30 pmMadrid Barajas
8h 45m
BOS3:15 pmBoston Logan Intl
$361
Find similar
Finnair
Oct 26
BOS10:20 pmBoston Logan Intl
7h 00m
MAD10:20 amMadrid Barajas
Nov 4
MAD12:30 pmMadrid Barajas
8h 45m
BOS3:15 pmBoston Logan Intl
$365
Find similar

British Airways flights from Boston to Europe

Our best British Airways deals on Boston to Europe flight tickets
British Airways
Sep 30
BOS2:56 pmBoston Logan Intl
12h 39m
1 stop
MAD9:35 amMadrid Barajas
Oct 7
MAD10:25 amMadrid Barajas
17h 54m
1 stop
BOS10:19 pmBoston Logan Intl
$353
Find similar
British Airways
Nov 5
BOS9:35 pmBoston Logan Intl
13h 20m
1 stop
MAD4:55 pmMadrid Barajas
Nov 11
MAD11:00 amMadrid Barajas
17h 47m
1 stop
BOS10:47 pmBoston Logan Intl
$354
Find similar
British Airways
Nov 19
BOS3:47 pmBoston Logan Intl
11h 03m
1 stop
MAD8:50 amMadrid Barajas
Nov 27
MAD12:30 pmMadrid Barajas
8h 45m
BOS3:15 pmBoston Logan Intl
$356
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Europe that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Boston to Europe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 10/24

6:00 am-9:45 am

1 stop22h 45m

Dublin

Sat 11/1

8:00 am-6:50 pm

2 stops38h 50m

$343

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 12/4

10:05 pm-9:20 am

Nonstop6h 15m

Dublin

Thu 12/11

9:45 am-11:59 pm

1 stop19h 14m

$344

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 9/30

2:56 pm-9:35 am

1 stop12h 39m

Madrid Barajas

Tue 10/7

10:25 am-10:19 pm

1 stop17h 54m

$353

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 11/5

9:35 pm-4:55 pm

1 stop13h 20m

Madrid Barajas

Tue 11/11

11:00 am-10:47 pm

1 stop17h 47m

$354

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 10/1

8:50 pm-1:15 pm

1 stop11h 25m

Dublin

Sun 10/5

12:15 pm-6:50 pm

1 stop11h 35m

$362

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 11/2

5:10 pm-9:55 am

1 stop10h 45m

Madrid Barajas

Fri 11/7

11:05 am-6:55 pm

1 stop13h 50m

$367

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Fri 11/7

5:10 pm-9:55 am

1 stop10h 45m

Madrid Barajas

Tue 11/11

10:40 am-6:55 pm

1 stop14h 15m

$375

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 11/16

6:05 pm-2:05 pm

1 stop14h 00m

Madrid Barajas

Sat 11/22

12:10 pm-8:10 pm

1 stop14h 00m

$381

BostonRome

BOS - FCO

BOSFCO

Boston Logan Intl

Mon 2/2

6:05 pm-6:45 pm

1 stop18h 40m

Rome Fiumicino

Sun 2/15

5:45 am-8:10 pm

1 stop20h 25m

$410

BostonRome

BOS - FCO

BOSFCO

Boston Logan Intl

Sun 9/28

8:50 pm-2:35 pm

1 stop11h 45m

Rome Fiumicino

Thu 2/12

11:25 am-5:50 pm

1 stop12h 25m

$413

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Boston to Europe

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Europe?

The cheapest month to fly to Europe from Boston is in January. Flight prices, which tend to average around $540, are often lower during this time because this is during the off-season. If you aren’t able to travel to Europe during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $541.

What is the cheapest day to depart on your flight to Europe?

The cheapest day to depart from Boston to Europe is on a Tuesday. Travelers who choose to depart for Europe on a Tuesday will often find tickets for as low as $656. Flights from Boston to Europe on a Saturday will generally be more expensive and average around $713. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Europe is at noon. momondo users have found flights departing from Boston to Europe at noon for as low as $623. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $688. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Boston Logan Intl to Europe flight route?

Fly from Boston Logan Intl to Lisbon Humberto Delgado for the best Boston Logan Intl - Europe flight prices

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

You are more likely to see cheaper flights to Europe from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Europe for around $639 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Europe from Boston for as low as $595 on momondo.

What cabin class options are available on Boston Logan Intl to Europe flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to Europe flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Europe flights?

No. A direct flight is the cheapest option for a flight between Boston to Europe.

Cheap Boston to Europe flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Europe

Best Price Found

$116

Fastest flight time

5h 55m

Direct flights

Every day

Airports in Europe

1 airport
The best one-way flight to Europe from Boston in the past 72 hours is $116. The best round-trip flight deal from Boston to Europe found on momondo in the last 72 hours is $398.
The fastest flight from Boston to Europe takes 5h 55m
Direct flights go from Boston to Europe every day.
There is 1 airport near Europe: Dublin (DUB)
Search flight deals

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Europe?

    Prices for flights from Boston Logan Intl Airport to Europe were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Europe?

  • How old do you have to be to fly from Boston Logan Intl Airport to Europe?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Europe.

  • What documentation or ID do you need to fly to Europe?

    The travel and health documents you'll need for your trip to Europe may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Europe. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Boston to Europe

Compare and see reviews for airlines that fly from Boston to Europe with momondo
Airline
Rating
Free Cancellation
Price
VuelingPriceFrom $165Free CancellationRating
7.1
1,185 reviews
Search Vueling flights
Azores AirlinesPriceFrom $243Free CancellationRating
7.5
73 reviews
Search Azores Airlines flights
SWISSPriceFrom $283Free CancellationRating
7.6
1,737 reviews
Search SWISS flights
CondorPriceFrom $310Free CancellationRating
6.3
366 reviews
Search Condor flights
FinnairPriceFrom $349Free CancellationRating
7.6
1,324 reviews
Search Finnair flights
LEVELPriceFrom $351Free CancellationRating
0.0
0 reviews
Search LEVEL flights
IcelandairPriceFrom $356Free CancellationRating
7.0
545 reviews
Search Icelandair flights
KLMPriceFrom $361Free CancellationRating
7.8
1,386 reviews
Search KLM flights
United AirlinesPriceFrom $365Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Air CanadaPriceFrom $368Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Europe?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Europe for you.

Can I find flights from Boston to Europe with flexible booking policies on momondo?

All flight searches from Boston to Europe on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boston to Europe?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Europe.

I’m not ready to book a flight from Boston to Europe right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Europe, momondo offers a useful price alert feature which will track prices for flights to Europe from Boston and alert you when they change.

An easier way to manage your Europe trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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