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Cheap flights from Boston to Madrid, Spain from C$ 442

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 24/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MAD
30 May — 6 Jun1
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 30 April 2026.

Sun 4/1011:50 p.m.
BOS
-
MAD
1 stop10h 25m
LEVEL
Sun 18/107:05 a.m.
MAD
-
BOS
1 stop21h 00m
LEVEL
Deal found 25/4C$ 740
Wed 30/911:00 p.m.
BOS
-
MAD
1 stop10h 00m
LEVEL
Wed 14/106:40 a.m.
MAD
-
BOS
1 stop20h 35m
LEVEL
Deal found 27/4C$ 777
Tue 22/95:30 p.m.
BOS
-
MAD
Nonstop6h 50m
KLM
Thu 8/102:35 p.m.
MAD
-
BOS
Nonstop8h 05m
KLM
Deal found 27/4C$ 788
Sun 9/811:35 p.m.
BOS
-
MAD
1 stop14h 05m
LEVEL
Wed 19/86:40 a.m.
MAD
-
BOS
1 stop20h 25m
LEVEL
Deal found 27/4C$ 791
Tue 22/91:00 p.m.
BOS
-
MAD
1 stop10h 35m
British Airways
Thu 8/105:30 p.m.
MAD
-
BOS
Nonstop8h 20m
British Airways
Deal found 29/4C$ 795
Tue 29/91:00 p.m.
BOS
-
MAD
1 stop11h 30m
Multiple Airlines
Tue 6/104:20 p.m.
MAD
-
BOS
1 stop11h 59m
Multiple Airlines
Deal found 27/4C$ 796
Wed 23/95:30 p.m.
BOS
-
MAD
Nonstop6h 50m
Delta
Wed 7/109:50 a.m.
MAD
-
BOS
1 stop21h 08m
Delta
Deal found 25/4C$ 802
Sat 19/98:45 p.m.
BOS
-
MAD
1 stop31h 10m
Delta
Tue 29/92:35 p.m.
MAD
-
BOS
Nonstop8h 00m
Delta
Deal found 28/4C$ 803
Mon 28/95:30 p.m.
BOS
-
MAD
Nonstop6h 50m
KLM
Sun 11/102:35 p.m.
MAD
-
BOS
Nonstop8h 05m
KLM
Deal found 27/4C$ 805
Wed 23/95:40 p.m.
BOS
-
MAD
Nonstop7h 10m
Finnair
Sun 27/91:50 p.m.
MAD
-
BOS
Nonstop8h 20m
Finnair
Deal found 27/4C$ 806
Sun 4/109:55 a.m.
BOS
-
MAD
1 stop18h 00m
Delta
Tue 20/1012:45 p.m.
MAD
-
BOS
1 stop15h 41m
Delta
Deal found 29/4C$ 809
Thu 17/97:00 a.m.
BOS
-
MAD
1 stop20h 55m
Delta
Thu 24/92:35 p.m.
MAD
-
BOS
Nonstop8h 00m
Delta
Deal found 28/4C$ 813

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 30 April 2026.

Round-trip from

C$ 740

One-way from

C$ 442

Popular in

December

Cheapest in

October

Average price

C$ 888

Good one-way deal

C$ 336 or less
LEVEL
  • LEVEL
  • 4/10-18/10
  • 2 total stops
  • 31h 25m total
  • Boston to Madrid
Search Deals
Delta
  • Delta
  • 24/10
  • 1 total stop
  • 30h 15m total
  • Boston to Madrid
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 0 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way 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 30 April 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

Mon 14/9

8:28 p.m.-9:00 a.m.

1 stop30h 32m

Madrid Barajas

Wed 14/10

12:45 p.m.-9:50 a.m.

1 stop27h 05m

C$ 833

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Mon 14/9

8:28 p.m.-9:00 a.m.

1 stop30h 32m

Madrid Barajas

Mon 5/10

12:45 p.m.-9:50 a.m.

1 stop27h 05m

C$ 835
Quickest round-trip

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 12/8

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

Nonstop6h 55m

Madrid Barajas

Wed 26/8

2:35 p.m.-4:31 p.m.

Nonstop7h 56m

C$ 863

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Thu 28/5

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

1 stop30h 00m

Madrid Barajas

Thu 4/6

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

2 stops30h 27m

C$ 958

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 10/5

7:27 p.m.-8:05 a.m.

1 stop30h 38m

Madrid Barajas

Mon 6/7

1:30 p.m.-5:42 p.m.

2 stops34h 12m

C$ 959

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Fri 11/9

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

1 stop30h 00m

Madrid Barajas

Sat 19/12

1:35 p.m.-4:25 p.m.

2 stops32h 50m

C$ 967

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Mon 31/8

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

Nonstop6h 55m

Madrid Barajas

Mon 7/9

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

Nonstop8h 00m

C$ 993

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 30/8

5:45 p.m.-12:15 p.m.

1 stop12h 30m

Madrid Barajas

Sun 6/9

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

Nonstop8h 00m

C$ 1,000

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 15/7

5:04 p.m.-9:35 a.m.

1 stop10h 31m

Madrid Barajas

Mon 20/7

1:50 p.m.-4:10 p.m.

Nonstop8h 20m

C$ 1,007

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sat 30/5

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

Nonstop7h 10m

Madrid Barajas

Thu 4/6

4:20 p.m.-11:01 p.m.

1 stop12h 41m

C$ 1,021

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/4

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?

To ensure you get the cheapest price possible for a flight from Boston to Madrid, you should look to book at least 75 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, October is the cheapest month in which you can book a flight from Boston to Madrid (average of C$ 632). Flying from Boston to Madrid in December is currently the most expensive (average of C$ 1,099). 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 30 April 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.

How much does it cost to fly round-trip from Boston to Madrid?

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 30 April 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
3,204 reviews
Check prices

Overall

7.0

Food

6.4

Crew

7.7

Entertainment

6.6

Boarding

7.2

Comfort

6.7

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
3,204 reviews
Iberia
7.0
Good
3,204 reviews
Check prices

Overall

7.0

Food

6.4

Crew

7.7

Entertainment

6.6

Boarding

7.2

Comfort

6.7

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 9 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 6h 55m.

  • 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 KLM fly from Boston to Madrid in about 6h 55m. The time it takes to get you to your destination can typically vary by up to 2h 20m. 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$ 427, 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: American Airlines (87%), Aer Lingus (87%), Finnair (87%).

  • What are the cheapest flights from Boston to Madrid?

    While on average a flight from Boston to Madrid is generally C$ 340, our data shows the cheapest flight currently is C$ 336. When looking at the most popular route, (Boston Logan Intl - Madrid Barajas), you can expect to pay C$ 1,137 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, October is the cheapest month in which you can book a flight from Boston to Madrid (average of C$ 632). Flying from Boston to Madrid in December is currently the most expensive (average of C$ 1,099). 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 30 April 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 427AverageC$ 570FlexibilityNo cancel feeOn-time77%
Search Iberia flights

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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.

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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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