Cheap flights from Boston to Madrid from C$ 350

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 26/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Boston to Madrid

Cheap round-trip flights

Iberia Logo
3:47 p.m. - 8:50 a.m.BOS-MAD
11h 03m1 stop
Iberia Logo
1:15 p.m. - 12:22 p.m.MAD-BOS
29h 07m1 stop
C$ 483Iberia
Find Deal
Mon, 17 Nov - Tue, 25 Nov
British Airways Logo
4:13 p.m. - 8:55 a.m.BOS-MAD
10h 42m1 stop
British Airways Logo
7:40 a.m. - 3:20 p.m.MAD-BOS
12h 40m1 stop
C$ 504British Airways
Find Deal
Mon, 2 Mar - Wed, 25 Mar
Finnair Logo
5:50 p.m. - 5:50 a.m.BOS-MAD
7h 00mdirect
Finnair Logo
12:30 p.m. - 3:15 p.m.MAD-BOS
8h 45mdirect
C$ 511Finnair
Find Deal
Tue, 28 Oct - Tue, 4 Nov
Finnair Logo
5:59 p.m. - 8:50 a.m.BOS-MAD
9h 51m1 stop
Finnair Logo
12:30 p.m. - 3:15 p.m.MAD-BOS
8h 45mdirect
C$ 516Finnair
Find Deal
Tue, 28 Oct - Tue, 4 Nov
Iberia Logo
3:47 p.m. - 8:50 a.m.BOS-MAD
11h 03m1 stop
Iberia Logo
5:05 p.m. - 7:50 p.m.MAD-BOS
8h 45mdirect
C$ 520Iberia
Find Deal
Sun, 16 Nov - Mon, 24 Nov
Aer Lingus Logo
5:10 p.m. - 9:55 a.m.BOS-MAD
10h 45m1 stop
Aer Lingus Logo
11:05 a.m. - 6:55 p.m.MAD-BOS
13h 50m1 stop
C$ 522Aer Lingus
Find Deal
Thu, 13 Nov - Fri, 21 Nov
Aer Lingus Logo
5:10 p.m. - 9:55 a.m.BOS-MAD
10h 45m1 stop
Aer Lingus Logo
10:40 a.m. - 6:55 p.m.MAD-BOS
14h 15m1 stop
C$ 523Aer Lingus
Find Deal
Sun, 16 Nov - Mon, 24 Nov
TAP AIR PORTUGAL Logo
6:05 p.m. - 11:30 p.m.BOS-MAD
23h 25m1 stop
TAP AIR PORTUGAL Logo
2:55 p.m. - 8:10 p.m.MAD-BOS
11h 15m1 stop
C$ 536TAP AIR PORTUGAL
Find Deal
Wed, 12 Nov - Thu, 20 Nov
United Airlines Logo
3:40 p.m. - 8:00 a.m.BOS-MAD
10h 20m1 stop
United Airlines Logo
1:35 p.m. - 12:33 p.m.MAD-BOS
28h 58m2 stops
C$ 540United Airlines
Find Deal
Tue, 25 Nov - Wed, 3 Dec
United Airlines Logo
6:40 p.m. - 8:00 a.m.BOS-MAD
31h 20m1 stop
United Airlines Logo
1:35 p.m. - 12:43 p.m.MAD-BOS
29h 08m2 stops
C$ 544United Airlines
Find Deal
Sat, 6 Dec - Wed, 24 Dec

British Airways flights from Boston to Madrid

Our best British Airways deals on Boston to Madrid flight tickets
British Airways
2 Mar
BOS4:13 p.m.Boston Logan Intl
10h 42m
1 stop
MAD8:55 a.m.Madrid Barajas
25 Mar
MAD7:40 a.m.Madrid Barajas
12h 40m
1 stop
BOS3:20 p.m.Boston Logan Intl
British Airways
26 Nov
BOS9:35 p.m.Boston Logan Intl
16h 30m
1 stop
MAD8:05 p.m.Madrid Barajas
2 Dec
MAD2:35 p.m.Madrid Barajas
29h 45m
1 stop
BOS2:20 p.m.Boston Logan Intl
British Airways
19 Nov
BOS6:55 p.m.Boston Logan Intl
16h 00m
1 stop
MAD4:55 p.m.Madrid Barajas
27 Nov
MAD12:50 p.m.Madrid Barajas
12h 55m
1 stop
BOS7:45 p.m.Boston Logan Intl

Iberia flights from Boston to Madrid

Our best Iberia deals on Boston to Madrid flight tickets
Iberia
17 Nov
BOS3:47 p.m.Boston Logan Intl
11h 03m
1 stop
MAD8:50 a.m.Madrid Barajas
25 Nov
MAD1:15 p.m.Madrid Barajas
29h 07m
1 stop
BOS12:22 p.m.Boston Logan Intl
Iberia
16 Nov
BOS3:47 p.m.Boston Logan Intl
11h 03m
1 stop
MAD8:50 a.m.Madrid Barajas
24 Nov
MAD5:05 p.m.Madrid Barajas
8h 45m
BOS7:50 p.m.Boston Logan Intl
Iberia
16 Nov
BOS3:47 p.m.Boston Logan Intl
11h 03m
1 stop
MAD8:50 a.m.Madrid Barajas
24 Nov
MAD4:25 p.m.Madrid Barajas
12h 34m
1 stop
BOS10:59 p.m.Boston Logan Intl

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 15 September 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

Mon 17/11

3:47 p.m.-8:50 a.m.

1 stop11h 03m

Madrid Barajas

Tue 25/11

1:15 p.m.-12:22 p.m.

1 stop29h 07m

C$ 483

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Mon 2/3

4:13 p.m.-8:55 a.m.

1 stop10h 42m

Madrid Barajas

Wed 25/3

7:40 a.m.-3:20 p.m.

1 stop12h 40m

C$ 504

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 28/10

5:50 p.m.-5:50 a.m.

Nonstop7h 00m

Madrid Barajas

Tue 4/11

12:30 p.m.-3:15 p.m.

Nonstop8h 45m

C$ 511

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 28/10

5:59 p.m.-8:50 a.m.

1 stop9h 51m

Madrid Barajas

Tue 4/11

12:30 p.m.-3:15 p.m.

Nonstop8h 45m

C$ 516

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 16/11

3:47 p.m.-8:50 a.m.

1 stop11h 03m

Madrid Barajas

Mon 24/11

5:05 p.m.-7:50 p.m.

Nonstop8h 45m

C$ 520

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Thu 13/11

5:10 p.m.-9:55 a.m.

1 stop10h 45m

Madrid Barajas

Fri 21/11

11:05 a.m.-6:55 p.m.

1 stop13h 50m

C$ 522

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 16/11

5:10 p.m.-9:55 a.m.

1 stop10h 45m

Madrid Barajas

Mon 24/11

10:40 a.m.-6:55 p.m.

1 stop14h 15m

C$ 523

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 12/11

6:05 p.m.-11:30 p.m.

1 stop23h 25m

Madrid Barajas

Thu 20/11

2:55 p.m.-8:10 p.m.

1 stop11h 15m

C$ 536

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 25/11

3:40 p.m.-8:00 a.m.

1 stop10h 20m

Madrid Barajas

Wed 3/12

1:35 p.m.-12:33 p.m.

2 stops28h 58m

C$ 540

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sat 6/12

6:40 p.m.-8:00 a.m.

1 stop31h 20m

Madrid Barajas

Wed 24/12

1:35 p.m.-12:43 p.m.

2 stops29h 08m

C$ 544

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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$ 749. 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$ 801.

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$ 702. 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$ 1,517.

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 afternoon. momondo users have found flights departing from Boston to Madrid in the afternoon for as low as C$ 962. 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 evening, with an average ticket price of C$ 1,250. Departure times in the evening 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$ 937 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$ 836 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 69% 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 September 2025, prices for Boston to Madrid flights are approximately 26% 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$ 646

Fastest flight time

6h 41m

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$ 646
The fastest flight from Boston to Madrid takes 6h 41m
Direct flights go from Boston to Madrid every day.
There is 1 airport near Madrid: Madrid Barajas (MAD)
  • 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$ 487Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
  • Iberia Flights From Boston to Madrid

    Iberia operates around 10 flights from Boston to Madrid every week. The average price of these flights found in the last 72 hours has been C$ 556, but momondo users have found Iberia deals from Boston to Madrid from as low as C$ 352 round-trip. Iberia has been scored 7.0/10 in 2,924 reviews.

Travelling to a place near Madrid?

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

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 15/10
Wed 22/10

Find better results for your trip to Spain

Fly your favourite airline to Madrid

Airlines are sorted and displayed according to clicks in the past 7 days on momondo