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Cheap flights from Boston to Europe from $204

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 4/13. 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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0 bags

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Find the cheapest flights from Boston to Europe

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:40 pm - 5:10 pm
BOS
-
DUB
15h 30m
1 stop
Multiple Airlines Logo
9:00 am - 3:57 pm
DUB
-
BOS
11h 57m
1 stop
$349Multiple Airlines
Tue, Feb 17 - Mon, Feb 23
KLM Logo
10:15 pm - 9:20 am
BOS
-
DUB
6h 05mnonstop
KLM Logo
11:30 am - 1:40 pm
DUB
-
BOS
7h 10mnonstop
$350KLM
Thu, Feb 26 - Tue, Mar 3
United Airlines Logo
6:27 pm - 9:55 am
BOS
-
DUB
10h 28m
1 stop
United Airlines Logo
8:00 am - 5:50 pm
DUB
-
BOS
37h 50m
2 stops
$351United Airlines
Fri, Feb 27 - Sun, Mar 8
Multiple Airlines Logo
10:40 am - 7:45 am
BOS
-
DUB
16h 05m
1 stop
Multiple Airlines Logo
11:30 am - 1:40 pm
DUB
-
BOS
7h 10mnonstop
$352Multiple Airlines
Thu, Feb 26 - Thu, Mar 5
Icelandair Logo
8:50 pm - 2:35 pm
BOS
-
FCO
11h 45m
1 stop
Icelandair Logo
3:45 pm - 10:10 pm
FCO
-
BOS
12h 25m
1 stop
$440Icelandair
Mon, May 11 - Wed, May 20
Icelandair Logo
8:50 pm - 2:35 pm
BOS
-
FCO
11h 45m
1 stop
Icelandair Logo
6:20 am - 10:10 pm
FCO
-
BOS
21h 50m
1 stop
$441Icelandair
Mon, May 4 - Sun, May 24
Delta Logo
4:55 pm - 11:00 am
BOS
-
FCO
12h 05m
1 stop
Delta Logo
1:20 pm - 4:37 pm
FCO
-
BOS
9h 17mnonstop
$443Delta
Mon, Apr 13 - Wed, Apr 22
Aer Lingus Logo
5:25 pm - 12:40 pm
BOS
-
CDG
13h 15m
1 stop
Aer Lingus Logo
10:10 am - 6:50 pm
CDG
-
BOS
14h 40m
1 stop
$456Aer Lingus
Tue, Apr 14 - Mon, Apr 20
Delta Logo
8:35 pm - 9:30 am
BOS
-
CDG
6h 55mnonstop
Delta Logo
2:30 pm - 4:20 pm
CDG
-
BOS
7h 50mnonstop
$459Delta
Tue, Feb 10 - Tue, Feb 17
British Airways Logo
5:10 pm - 8:05 am
BOS
-
LHR
9h 55m
1 stop
British Airways Logo
7:10 pm - 10:55 pm
LHR
-
BOS
7h 45mnonstop
$499British Airways
Tue, Feb 17 - Wed, Mar 11

TAP AIR PORTUGAL flights from Boston to Europe

Our best TAP AIR PORTUGAL deals on Boston to Europe flight tickets
TAP AIR PORTUGAL
Apr 1
BOS10:45 pmBoston Logan Intl
29h 35m
1 stop
FCO10:20 amRome Fiumicino
Apr 10
FCO5:55 amRome Fiumicino
14h 45m
1 stop
BOS2:40 pmBoston Logan Intl
$434
TAP AIR PORTUGAL
Apr 8
BOS10:30 pmBoston Logan Intl
19h 45m
2 stops
FCO12:15 amRome Fiumicino
Apr 15
FCO11:10 amRome Fiumicino
14h 45m
2 stops
BOS7:55 pmBoston Logan Intl
$435
TAP AIR PORTUGAL
Jan 23
BOS6:05 pmBoston Logan Intl
24h 00m
1 stop
FCO12:05 amRome Fiumicino
Jan 30
FCO7:35 pmRome Fiumicino
25h 00m
1 stop
BOS2:35 pmBoston Logan Intl
$440

KLM flights from Boston to Europe

Our best KLM deals on Boston to Europe flight tickets
KLM
Apr 1
BOS3:10 pmBoston Logan Intl
11h 45m
1 stop
DUB7:55 amDublin
Apr 29
DUB3:00 pmDublin
7h 04m
BOS5:04 pmBoston Logan Intl
$359
KLM
Mar 19
BOS11:15 pmBoston Logan Intl
6h 05m
DUB9:20 amDublin
Mar 23
DUB1:25 pmDublin
10h 30m
1 stop
BOS7:55 pmBoston Logan Intl
$370
KLM
Mar 19
BOS11:15 pmBoston Logan Intl
6h 05m
DUB9:20 amDublin
Mar 31
DUB3:00 pmDublin
7h 04m
BOS5:04 pmBoston Logan Intl
$375

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 January 15, 2026.
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

Tue 2/17

8:40 pm-5:10 pm

1 stop15h 30m

Dublin

Mon 2/23

9:00 am-3:57 pm

1 stop11h 57m

$349

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 2/26

10:15 pm-9:20 am

Nonstop6h 05m

Dublin

Tue 3/3

11:30 am-1:40 pm

Nonstop7h 10m

$350

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 2/27

6:27 pm-9:55 am

1 stop10h 28m

Dublin

Sun 3/8

8:00 am-5:50 pm

2 stops37h 50m

$351

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 2/26

10:40 am-7:45 am

1 stop16h 05m

Dublin

Thu 3/5

11:30 am-1:40 pm

Nonstop7h 10m

$352

BostonRome

BOS - FCO

BOSFCO

Boston Logan Intl

Mon 5/11

8:50 pm-2:35 pm

1 stop11h 45m

Rome Fiumicino

Wed 5/20

3:45 pm-10:10 pm

1 stop12h 25m

$440

BostonRome

BOS - FCO

BOSFCO

Boston Logan Intl

Mon 5/4

8:50 pm-2:35 pm

1 stop11h 45m

Rome Fiumicino

Sun 5/24

6:20 am-10:10 pm

1 stop21h 50m

$441

BostonRome

BOS - FCO

BOSFCO

Boston Logan Intl

Mon 4/13

4:55 pm-11:00 am

1 stop12h 05m

Rome Fiumicino

Wed 4/22

1:20 pm-4:37 pm

Nonstop9h 17m

$443

BostonParis

BOS - CDG

BOSCDG

Boston Logan Intl

Tue 4/14

5:25 pm-12:40 pm

1 stop13h 15m

Paris Charles de Gaulle

Mon 4/20

10:10 am-6:50 pm

1 stop14h 40m

$456

BostonParis

BOS - CDG

BOSCDG

Boston Logan Intl

Tue 2/10

8:35 pm-9:30 am

Nonstop6h 55m

Paris Charles de Gaulle

Tue 2/17

2:30 pm-4:20 pm

Nonstop7h 50m

$459

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 2/17

5:10 pm-8:05 am

1 stop9h 55m

London Heathrow

Wed 3/11

7:10 pm-10:55 pm

Nonstop7h 45m

$499

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 October. Flight prices, which tend to average around $517, 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 October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $544.

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 $719. 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 in the afternoon. momondo users have found flights departing from Boston to Europe in the afternoon for as low as $621. 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 $696. 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 $634 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 $611 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?

You could potentially save up to 13% on your flight if you consider stops on a Boston to Europe flight.

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

$279

Fastest flight time

1h 35m

Direct flights

Every day

Airports in Europe

4,107 airports
The best one-way flight to Europe from Boston in the past 72 hours is $279. The best round-trip flight deal from Boston to Europe found on momondo in the last 72 hours is $381.
The fastest flight from Boston to Europe takes 1h 35m
Direct flights go from Boston to Europe every day.
There are 4,107 airports in Europe. From Boston there are direct flights to 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 $78Free CancellationRating
7.1
1,228 reviews
Search Vueling flights
Aer LingusPriceFrom $238Free CancellationRating
7.2
1,435 reviews
Search Aer Lingus flights
CondorPriceFrom $290Free CancellationRating
6.4
398 reviews
Search Condor flights
PLAYPriceFrom $290Free CancellationRating
7.0
103 reviews
Search PLAY flights
Azores AirlinesPriceFrom $316Free CancellationRating
7.4
90 reviews
Search Azores Airlines flights
SWISSPriceFrom $318Free CancellationRating
7.5
1,847 reviews
Search SWISS flights
LEVELPriceFrom $348Free CancellationRating
0.0
0 reviews
Search LEVEL flights
FinnairPriceFrom $349Free CancellationRating
7.6
1,349 reviews
Search Finnair flights
IcelandairPriceFrom $351Free CancellationRating
7.1
596 reviews
Search Icelandair flights
American AirlinesPriceFrom $352Free CancellationRating
7.2
11,129 reviews
Search American Airlines 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

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