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Cheap flights from Boston to Madrid, Spain from C$ 399

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MAD
10 Apr — 17 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Madrid

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Madrid
Explore the most affordable flight options available from Boston to Madrid. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2026.

Mon 13/46:40 p.m.
BOS
-
MAD
1 stop30h 10m
United Airlines
Wed 29/412:45 p.m.
MAD
-
BOS
2 stops27h 35m
United Airlines
Deal found 6/3C$ 597
Tue 22/95:30 p.m.
BOS
-
MAD
Nonstop6h 50m
KLM
Fri 16/102:35 p.m.
MAD
-
BOS
Nonstop8h 05m
KLM
Deal found 9/3C$ 606
Mon 13/43:28 p.m.
BOS
-
MAD
1 stop11h 32m
United Airlines
Wed 22/412:45 p.m.
MAD
-
BOS
1 stop14h 42m
United Airlines
Deal found 9/3C$ 611
Sun 12/45:09 p.m.
BOS
-
MAD
1 stop10h 26m
British Airways
Wed 22/45:30 p.m.
MAD
-
BOS
Nonstop8h 20m
British Airways
Deal found 10/3C$ 612
Wed 23/99:20 p.m.
BOS
-
MAD
Nonstop7h 10m
Finnair
Thu 15/104:20 p.m.
MAD
-
BOS
1 stop11h 59m
Finnair
Deal found 9/3C$ 614
Mon 13/49:20 p.m.
BOS
-
MAD
Nonstop7h 10m
Finnair
Wed 22/412:40 p.m.
MAD
-
BOS
1 stop17h 12m
Finnair
Deal found 11/3C$ 616
Mon 13/49:20 p.m.
BOS
-
MAD
Nonstop7h 10m
Finnair
Tue 21/412:40 p.m.
MAD
-
BOS
1 stop17h 12m
Finnair
Deal found 9/3C$ 619
Tue 14/45:45 a.m.
BOS
-
MAD
2 stops19h 05m
United Airlines
Wed 29/412:45 p.m.
MAD
-
BOS
1 stop27h 04m
United Airlines
Deal found 7/3C$ 620
Mon 20/49:05 a.m.
BOS
-
MAD
1 stop18h 50m
Virgin Atlantic
Tue 28/412:45 p.m.
MAD
-
BOS
1 stop18h 30m
Virgin Atlantic
Deal found 9/3C$ 626
Mon 13/46:40 p.m.
BOS
-
MAD
1 stop30h 10m
United Airlines
Tue 21/411:15 a.m.
MAD
-
BOS
2 stops29h 00m
United Airlines
Deal found 8/3C$ 630
Sun 20/99:45 p.m.
BOS
-
MAD
1 stop15h 30m
Delta
Tue 6/102:35 p.m.
MAD
-
BOS
Nonstop8h 05m
Delta
Deal found 7/3C$ 631

Find flight deals from Boston to Madrid

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Madrid (MAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 March 2026.

Round-trip from

C$ 592

One-way from

C$ 399

Popular in

December

Cheapest in

October

Average price

C$ 806

Good round-trip deal

C$ 650 or less
United Airlines
  • United Airlines
  • 20/4-29/4
  • 2 total stops
  • 62h 42m total
  • Boston to Madrid
Search Deals
Delta
  • Delta
  • 25/4
  • 1 total stop
  • 30h 56m total
  • Boston to Madrid
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Madrid Barajas.
Search Deals

Cheapflights 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, Cheapflights users made 629,999 searches. Data last updated 11 March 2026.
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

Cheapest round-trip

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 10/5

10:35 p.m.-11:30 a.m.

Nonstop6h 55m

Madrid Barajas

Sun 17/5

1:30 p.m.-3:35 p.m.

Nonstop8h 05m

C$ 714

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 28/4

3:35 p.m.-6:50 a.m.

1 stop9h 15m

Madrid Barajas

Mon 4/5

12:45 p.m.-6:07 p.m.

1 stop11h 22m

C$ 720

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sat 1/8

6:50 p.m.-6:50 a.m.

1 stop30h 00m

Madrid Barajas

Tue 1/9

12:45 p.m.-5:55 p.m.

2 stops35h 10m

C$ 749

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 8/4

6:00 a.m.-9:55 a.m.

1 stop21h 55m

Madrid Barajas

Wed 15/4

12:45 p.m.-10:36 p.m.

1 stop15h 51m

C$ 777

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Thu 16/4

7:00 a.m.-8:05 a.m.

2 stops19h 05m

Madrid Barajas

Mon 20/4

12:45 p.m.-1:29 p.m.

2 stops30h 44m

C$ 808

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sat 9/5

5:05 p.m.-9:55 a.m.

1 stop10h 50m

Madrid Barajas

Fri 12/6

2:35 p.m.-4:30 p.m.

Nonstop7h 55m

C$ 826

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 12/5

10:30 a.m.-9:55 a.m.

1 stop17h 25m

Madrid Barajas

Thu 28/5

2:35 p.m.-4:33 p.m.

Nonstop7h 58m

C$ 828

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 1/4

9:20 p.m.-10:30 a.m.

Nonstop7h 10m

Madrid Barajas

Wed 8/4

5:30 p.m.-7:50 p.m.

Nonstop8h 20m

C$ 839

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 10/5

5:25 p.m.-6:20 a.m.

Nonstop6h 55m

Madrid Barajas

Sun 24/5

2:35 p.m.-4:33 p.m.

Nonstop7h 58m

C$ 839

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 25/8

5:40 p.m.-11:10 a.m.

2 stops35h 30m

Madrid Barajas

Thu 3/9

12:00 p.m.-3:35 p.m.

2 stops33h 35m

C$ 857

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/3

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Boston to Madrid

Have a flexible travel schedule? Discover the best time to fly to Madrid from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Madrid

How far ahead should I book a flight from Boston to Madrid?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Madrid. Price data was last updated on 6 March 2026.

To ensure you get the cheapest price possible for a flight from Boston to Madrid, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boston to Madrid?

Currently, November is the cheapest month in which you can book a flight from Boston to Madrid (average of C$ 439). Flying from Boston to Madrid in June is currently the most expensive (average of C$ 630). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to MAD?

Find hourly flight availability from Boston to Madrid. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Madrid as you normally would.

Reviews of airlines servicing Madrid

Get insights into the airlines that provide service to Madrid. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Madrid. Reviews last updated 11 March 2026.
Read reviews from past customers who have flown Iberia from Boston to Madrid. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Iberia
7.0
Good
3,133 reviews
Check prices

Crew

7.7

Boarding

7.1

Overall

7.0

Comfort

6.8

Entertainment

6.6

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Stiphan,Nov 2025

SVQ - MAD

Ground staff in Seville are incompetent. I fly over 300K KM per year and understand rules. Had to waste time to try to get baggage checked through for entire reservation but ground crew insisted I had to claim in Madrid. Once in Madrid, Ground staff said that it should have been checked through and did recheck the baggage. Wasted time and energy. Not level of service expected when flying business class with family and 10 suitcases. And one suitcase got lost.
Iberia
7.0
Good
3,133 reviews
Iberia
7.0
Good
3,133 reviews
Check prices

Crew

7.7

Boarding

7.1

Overall

7.0

Comfort

6.8

Entertainment

6.6

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Stiphan,Nov 2025

SVQ - MAD

Ground staff in Seville are incompetent. I fly over 300K KM per year and understand rules. Had to waste time to try to get baggage checked through for entire reservation but ground crew insisted I had to claim in Madrid. Once in Madrid, Ground staff said that it should have been checked through and did recheck the baggage. Wasted time and energy. Not level of service expected when flying business class with family and 10 suitcases. And one suitcase got lost.

Related info for your journey

Find useful and relevant information for your journey from Boston to Madrid. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Boston to Madrid?

    You will need to book a flight from Boston Logan Intl to Madrid Barajas if you want to fly from Boston to Madrid. At least 1 airline has flights from Logan Intl (BOS) to Barajas (MAD) on a regular basis. There are 8 flights to Madrid from the Boston airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BOS to MAD to be around 25h 30m.

  • How popular is this Boston to Madrid flight route?

    Flights from Boston Logan Intl to Madrid Barajas have been viewed 10 times in the past calendar month.

  • How long is the flight from Boston to Madrid?

    Airlines like United Airlines and Finnair fly from Boston to Madrid in about 7h 10m. The time it takes to get you to your destination can typically vary by up to 23h 25m. Airlines will cover a distance of 5470 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Boston to Madrid round-trip?

    Currently priced at C$ 424, Iberia will fly you from Boston to Madrid and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. This flight start at 49% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Boston to Madrid?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Madrid on time: Qatar Airways (81%), American Airlines (75%), Aer Lingus (75%).

  • What are the cheapest flights from Boston to Madrid?

    While on average a flight from Boston to Madrid is generally C$ 750, our data shows the cheapest flight currently is C$ 618. When looking at the most popular route, (Boston Logan Intl - Madrid Barajas), you can expect to pay C$ 2,551 for that flight.

  • Can I find deals for flights from Boston to Madrid that include hotel bookings?

    Yes. In addition to deals on Boston to Madrid flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Madrid?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Madrid.

  • Can I find deals for business class flights from Boston to Madrid?

    Yes. Cheapflights offers flight deals from Boston to Madrid by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Madrid?

    Currently, November is the cheapest month in which you can book a flight from Boston to Madrid (average of C$ 439). Flying from Boston to Madrid in June is currently the most expensive (average of C$ 630). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Boston to Madrid

Discover the top airline that operate flights from Boston to Madrid. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 11 March 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 424AverageC$ 565FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Boston to Madrid?

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Can Cheapflights find flights from Boston to Madrid with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to Madrid flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Boston to Madrid become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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