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Cheap flights from Boston to Madrid from C$ 402

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 Madrid departing on 21/1. 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 Madrid

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:40 p.m. - 7:00 a.m.BOS-MAD
30h 20m1 stop
United Airlines Logo
12:35 p.m. - 9:41 p.m.MAD-BOS
38h 06m2 stops
C$ 557United Airlines
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Sat, 7 Mar - Thu, 19 Mar
United Airlines Logo
6:00 a.m. - 8:00 a.m.BOS-MAD
20h 00m2 stops
United Airlines Logo
1:35 p.m. - 12:53 p.m.MAD-BOS
29h 18m2 stops
C$ 559United Airlines
Find Deal
Thu, 12 Feb - Mon, 16 Feb
United Airlines Logo
6:00 a.m. - 9:15 a.m.BOS-MAD
21h 15m2 stops
United Airlines Logo
1:35 p.m. - 10:37 a.m.MAD-BOS
27h 02m2 stops
C$ 562United Airlines
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Wed, 10 Dec - Thu, 18 Dec
United Airlines Logo
4:15 p.m. - 9:15 a.m.BOS-MAD
11h 00m1 stop
United Airlines Logo
12:35 p.m. - 9:41 p.m.MAD-BOS
38h 06m2 stops
C$ 563United Airlines
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Tue, 24 Feb - Wed, 25 Mar
British Airways Logo
6:55 p.m. - 11:55 a.m.BOS-MAD
11h 00m1 stop
British Airways Logo
4:25 p.m. - 10:52 p.m.MAD-BOS
12h 27m1 stop
C$ 569British Airways
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Wed, 11 Feb - Sun, 15 Feb
United Airlines Logo
9:40 a.m. - 9:15 a.m.BOS-MAD
17h 35m2 stops
United Airlines Logo
12:35 p.m. - 7:08 p.m.MAD-BOS
35h 33m2 stops
C$ 570United Airlines
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Tue, 24 Feb - Tue, 24 Mar
United Airlines Logo
10:50 a.m. - 10:50 a.m.BOS-MAD
18h 00m1 stop
United Airlines Logo
12:45 p.m. - 9:55 a.m.MAD-BOS
27h 10m2 stops
C$ 573United Airlines
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Wed, 6 May - Fri, 15 May
United Airlines Logo
5:30 a.m. - 8:00 a.m.BOS-MAD
20h 30m1 stop
United Airlines Logo
1:35 p.m. - 2:52 p.m.MAD-BOS
31h 17m1 stop
C$ 574United Airlines
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Mon, 2 Feb - Fri, 13 Feb
United Airlines Logo
4:33 p.m. - 9:15 a.m.BOS-MAD
10h 42m1 stop
United Airlines Logo
1:35 p.m. - 7:42 p.m.MAD-BOS
12h 07m1 stop
C$ 577United Airlines
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Fri, 23 Jan - Mon, 2 Feb
United Airlines Logo
9:50 a.m. - 10:50 a.m.BOS-MAD
19h 00m2 stops
United Airlines Logo
12:45 p.m. - 9:55 a.m.MAD-BOS
27h 10m2 stops
C$ 578United Airlines
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Wed, 6 May - Fri, 15 May

United Airlines flights from Boston to Madrid

Our best United Airlines deals on Boston to Madrid flight tickets
United Airlines
3 Dec
BOS10:15 a.m.Boston Logan Intl
15h 45m
1 stop
MAD8:00 a.m.Madrid Barajas
8 Dec
MAD1:35 p.m.Madrid Barajas
12h 07m
1 stop
BOS7:42 p.m.Boston Logan Intl
C$ 552
Find similar
United Airlines
3 Dec
BOS12:02 p.m.Boston Logan Intl
13h 58m
2 stops
MAD8:00 a.m.Madrid Barajas
12 Dec
MAD1:35 p.m.Madrid Barajas
16h 06m
2 stops
BOS11:41 p.m.Boston Logan Intl
C$ 554
Find similar
United Airlines
7 Mar
BOS6:40 p.m.Boston Logan Intl
30h 20m
1 stop
MAD7:00 a.m.Madrid Barajas
19 Mar
MAD12:35 p.m.Madrid Barajas
38h 06m
2 stops
BOS9:41 p.m.Boston Logan Intl
C$ 557
Find similar

Delta flights from Boston to Madrid

Our best Delta deals on Boston to Madrid flight tickets
Delta
4 Dec
BOS6:05 a.m.Boston Logan Intl
19h 55m
1 stop
MAD8:00 a.m.Madrid Barajas
9 Dec
MAD6:00 a.m.Madrid Barajas
13h 35m
1 stop
BOS1:35 p.m.Boston Logan Intl
C$ 560
Find similar
Delta
4 Dec
BOS12:10 p.m.Boston Logan Intl
15h 05m
1 stop
MAD9:15 a.m.Madrid Barajas
9 Dec
MAD6:00 a.m.Madrid Barajas
13h 35m
1 stop
BOS1:35 p.m.Boston Logan Intl
C$ 564
Find similar
Delta
4 Dec
BOS6:05 a.m.Boston Logan Intl
19h 55m
1 stop
MAD8:00 a.m.Madrid Barajas
9 Dec
MAD11:15 a.m.Madrid Barajas
14h 18m
1 stop
BOS7:33 p.m.Boston Logan Intl
C$ 566
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momondo Fare Finder

 
Customize your flight search to find flights from Boston to Madrid 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 96,600 searches. Data last updated 26 November 2025.
Use the filters below to find and compare flights from Boston to Madrid that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sat 7/3

6:40 p.m.-7:00 a.m.

1 stop30h 20m

Madrid Barajas

Thu 19/3

12:35 p.m.-9:41 p.m.

2 stops38h 06m

C$ 557

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Thu 12/2

6:00 a.m.-8:00 a.m.

2 stops20h 00m

Madrid Barajas

Mon 16/2

1:35 p.m.-12:53 p.m.

2 stops29h 18m

C$ 559

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 10/12

6:00 a.m.-9:15 a.m.

2 stops21h 15m

Madrid Barajas

Thu 18/12

1:35 p.m.-10:37 a.m.

2 stops27h 02m

C$ 562

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 24/2

4:15 p.m.-9:15 a.m.

1 stop11h 00m

Madrid Barajas

Wed 25/3

12:35 p.m.-9:41 p.m.

2 stops38h 06m

C$ 563

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 11/2

6:55 p.m.-11:55 a.m.

1 stop11h 00m

Madrid Barajas

Sun 15/2

4:25 p.m.-10:52 p.m.

1 stop12h 27m

C$ 569

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 24/2

9:40 a.m.-9:15 a.m.

2 stops17h 35m

Madrid Barajas

Tue 24/3

12:35 p.m.-7:08 p.m.

2 stops35h 33m

C$ 570

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 6/5

10:50 a.m.-10:50 a.m.

1 stop18h 00m

Madrid Barajas

Fri 15/5

12:45 p.m.-9:55 a.m.

2 stops27h 10m

C$ 573

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Mon 2/2

5:30 a.m.-8:00 a.m.

1 stop20h 30m

Madrid Barajas

Fri 13/2

1:35 p.m.-2:52 p.m.

1 stop31h 17m

C$ 574

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Fri 23/1

4:33 p.m.-9:15 a.m.

1 stop10h 42m

Madrid Barajas

Mon 2/2

1:35 p.m.-7:42 p.m.

1 stop12h 07m

C$ 577

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 6/5

9:50 a.m.-10:50 a.m.

2 stops19h 00m

Madrid Barajas

Fri 15/5

12:45 p.m.-9:55 a.m.

2 stops27h 10m

C$ 578

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Madrid from

How to get the cheapest flight ticket from Boston to Madrid

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 Madrid?

In general, October is the cheapest month to fly from Boston to Madrid. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 677. If you aren’t able to travel during the month of October, then book flights to Madrid from Boston during September instead. Flights to Madrid in September, while not as cheap as those in October, still average around C$ 703.

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

Our data shows that Sunday is the least expensive day to fly to Madrid. Tickets to fly out on this day can be as low as C$ 667. On the other hand, Thursday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,547.

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

According to our data, the cheapest time of day to fly to Madrid is in the evening. momondo users have found flights departing from Boston to Madrid in the evening for as low as C$ 815. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Madrid are more costly in the afternoon, with an average ticket price of C$ 1,010. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Boston Logan Intl to Madrid Barajas flight route?

Fly from Boston Logan Intl to Madrid Barajas for the best Boston Logan Intl - Madrid Barajas flight prices

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

You are more likely to see cheaper flights to Madrid from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around C$ 918 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Madrid from Boston for as low as C$ 839 on momondo.

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

There is only 1 cabin class available to choose from on Boston Logan Intl to Madrid Barajas 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 Madrid flights?

You could potentially save up to 22% on your flight if you consider stops on a Boston to Madrid flight.

How have Boston to Madrid flight prices changed over time?

As of November 2025, prices for Boston to Madrid flights are approximately 13% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Madrid

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Madrid according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Madrid (BOS to MAD) flight deals and tips

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

Best price found

C$ 658

Fastest flight time

7h 00m

Direct flights

Every day

Airports in Madrid

1 airport
The best flight deal from Boston to Madrid found on momondo in the last 72 hours is C$ 658
The fastest flight from Boston to Madrid takes 7h 00m
Direct flights go from Boston to Madrid every day.
There is 1 airport near Madrid: Madrid Barajas (MAD)
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  • How far is Boston Logan Intl to Madrid Barajas by plane?

    The distance between Boston Logan Intl and Madrid Barajas is about 5466.8 km. 7h 00m is a normal flight duration for this route.

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

    Prices for flights from Boston Logan Intl Airport to Madrid Barajas Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Madrid Barajas Airport.

  • What documentation or ID do you need to fly to Madrid Barajas Airport?

    The necessary travel and health documents for your Madrid Barajas Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Boston to Madrid?

  • What is the most popular airline from Boston to Madrid?

Best airlines flying from Boston to Madrid

Compare and see reviews for airlines that fly from Boston to Madrid with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom C$ 440Free CancellationRating
7.0
3,036 reviews
Search Iberia flights

  • Iberia Flights From Boston to Madrid

    Iberia operates around 4 flights from Boston to Madrid every week. The average price of these flights found in the last 72 hours has been C$ 615, but momondo users have found Iberia deals from Boston to Madrid from as low as C$ 440 round-trip. Iberia has been scored 7.0/10 in 3,036 reviews.

Travelling to a place near Madrid?

Book flights to Madrid if you plan to visit one of these locations
Toledo
Fuenlabrada
Getafe
Segovia
Guadalajara

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to Madrid . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Madrid from Boston which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Boston and Madrid by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Madrid from Boston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Madrid trip

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Iberia