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Cheap flights from Boston to Madrid, Spain from C$ 417

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MAD
27 Aug — 3 Sep1
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 28 July 2026.

Sun 11/107:38 a.m.
BOS
-
MAD
2 stops17h 12m
United Airlines
Mon 19/1012:45 p.m.
MAD
-
BOS
2 stops26h 59m
United Airlines
Deal found 28/7C$ 941
Tue 15/99:50 p.m.
BOS
-
MAD
1 stop37h 10m
Turkish Airlines
Sat 24/106:30 p.m.
MAD
-
BOS
1 stop30h 35m
Turkish Airlines
Deal found 27/7C$ 945
Wed 19/85:25 p.m.
BOS
-
MAD
Nonstop6h 55m
Delta
Wed 26/89:50 a.m.
MAD
-
BOS
1 stop15h 45m
Delta
Deal found 27/7C$ 946
Thu 10/95:30 p.m.
BOS
-
MAD
Nonstop6h 50m
Delta
Sun 20/92:35 p.m.
MAD
-
BOS
Nonstop8h 00m
Delta
Deal found 28/7C$ 948
Mon 7/95:30 p.m.
BOS
-
MAD
Nonstop6h 50m
Delta
Wed 16/92:35 p.m.
MAD
-
BOS
Nonstop8h 00m
Delta
Deal found 28/7C$ 949
Mon 10/85:05 p.m.
BOS
-
MAD
1 stop11h 40m
ITA Airways
Thu 20/85:55 a.m.
MAD
-
BOS
1 stop13h 45m
ITA Airways
Deal found 27/7C$ 951
Tue 18/81:34 p.m.
BOS
-
MAD
1 stop14h 21m
Delta
Mon 24/89:50 a.m.
MAD
-
BOS
1 stop15h 45m
Delta
Deal found 28/7C$ 952
Sun 6/98:55 a.m.
BOS
-
MAD
1 stop21h 20m
Delta
Mon 14/92:35 p.m.
MAD
-
BOS
Nonstop8h 00m
Delta
Deal found 28/7C$ 953
Thu 20/85:25 p.m.
BOS
-
MAD
Nonstop6h 55m
Delta
Mon 31/82:35 p.m.
MAD
-
BOS
Nonstop7h 56m
Delta
Deal found 28/7C$ 955
Mon 10/87:10 p.m.
BOS
-
MAD
1 stop14h 25m
Delta
Thu 20/82:35 p.m.
MAD
-
BOS
Nonstop7h 56m
Delta
Deal found 27/7C$ 958
Sun 23/85:25 p.m.
BOS
-
MAD
Nonstop6h 55m
Delta
Fri 4/912:45 p.m.
MAD
-
BOS
1 stop12h 30m
Delta
Deal found 26/7C$ 959

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 28 July 2026.

Round-trip from

C$ 941

One-way from

C$ 417

Popular in

June

Cheapest in

January

Average price

C$ 1,093
United Airlines
  • United Airlines
  • 11/10-19/10
  • 4 total stops
  • 44h 11m total
  • Boston to Madrid
Search Deals
Delta
  • Delta
  • 18/8
  • Nonstop
  • 6h 55m total
  • Boston to Madrid
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 28 July 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 16/8

10:15 a.m.-12:15 p.m.

1 stop20h 00m

Madrid Barajas

Sat 22/8

9:50 a.m.-1:25 a.m.

1 stop21h 35m

C$ 958

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Thu 10/9

9:45 p.m.-3:35 p.m.

1 stop11h 50m

Madrid Barajas

Mon 14/9

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

Nonstop8h 00m

C$ 973

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 15/9

9:20 a.m.-9:55 a.m.

1 stop18h 35m

Madrid Barajas

Sat 19/9

12:45 p.m.-11:10 p.m.

1 stop16h 25m

C$ 973

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 13/9

5:10 p.m.-11:20 a.m.

1 stop12h 10m

Madrid Barajas

Mon 12/10

2:35 p.m.-4:40 p.m.

Nonstop8h 05m

C$ 973

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Thu 10/9

5:10 p.m.-3:35 p.m.

1 stop16h 25m

Madrid Barajas

Tue 15/9

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

Nonstop8h 00m

C$ 982

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 23/9

9:33 a.m.-9:35 a.m.

2 stops18h 02m

Madrid Barajas

Sun 4/10

11:15 a.m.-12:43 p.m.

2 stops31h 28m

C$ 983
Quickest round-trip

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Tue 13/10

5:35 p.m.-6:20 a.m.

Nonstop6h 45m

Madrid Barajas

Tue 27/10

7:00 a.m.-2:25 p.m.

1 stop12h 25m

C$ 984

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Wed 19/8

5:45 a.m.-6:50 a.m.

1 stop19h 05m

Madrid Barajas

Tue 25/8

12:45 p.m.-7:28 p.m.

2 stops36h 43m

C$ 984

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 16/8

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

1 stop30h 00m

Madrid Barajas

Sun 30/8

11:15 a.m.-9:59 p.m.

2 stops16h 44m

C$ 1,018

BostonMadrid

BOS - MAD

BOSMAD

Boston Logan Intl

Sun 23/8

7:05 a.m.-6:50 a.m.

2 stops17h 45m

Madrid Barajas

Sun 30/8

11:15 a.m.-11:59 p.m.

1 stop18h 44m

C$ 1,046

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

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

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 65 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, January is the cheapest month in which you can book a flight from Boston to Madrid (average of C$ 738). Flying from Boston to Madrid in June is currently the most expensive (average of C$ 1,189). 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 28 July 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?

Airfare is typical for this route at the moment.

Boston to Madrid flights typically cost between C$ 855 and C$ 1,227 in October.
The cheapest round-trip price found within the last 5 days was C$ 941 on United Airlines (11 Oct-19 Oct).

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 28 July 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
3,258 reviews
Check prices

Crew

7.7

Boarding

7.1

Overall

7.0

Comfort

6.7

Food

6.3

Entertainment

6.6

Reviews

1 / 20
2.0
Mediocre

T,Jun 2026

JFK - MAD

I wasn’t able to go we tried cancelling through agency 6 weeks ago to a severe illness. I paid for trip insurance through Underpricer. And guess what. I got nothing. What a scam. The person my daughter who was supposed to accompany me on a father daughter trip. 7 weeks later is still unable to travel. She is careless by for her mother who had a stroke and is still in a rehab facility. Underpricer has been absent unable to understand the gravity. I provided medical documents and current status. What a disgusting world we live in. My daughter’s mother may not survive another 2 months. But do you air Underpricer care. No. We didn’t cancel frivolously. We had a real medical catastrophe. I paid extra for exactly this kind of issue and have gotten nothing. I may never use Kayak again. You represent your affiliates. I am truly disheartened. Timothy Carey.
Iberia
7.0
Good
3,258 reviews
Iberia
7.0
Good
3,258 reviews
Check prices

Crew

7.7

Boarding

7.1

Overall

7.0

Comfort

6.7

Food

6.3

Entertainment

6.6

Reviews

1 / 20
2.0
Mediocre

T,Jun 2026

JFK - MAD

I wasn’t able to go we tried cancelling through agency 6 weeks ago to a severe illness. I paid for trip insurance through Underpricer. And guess what. I got nothing. What a scam. The person my daughter who was supposed to accompany me on a father daughter trip. 7 weeks later is still unable to travel. She is careless by for her mother who had a stroke and is still in a rehab facility. Underpricer has been absent unable to understand the gravity. I provided medical documents and current status. What a disgusting world we live in. My daughter’s mother may not survive another 2 months. But do you air Underpricer care. No. We didn’t cancel frivolously. We had a real medical catastrophe. I paid extra for exactly this kind of issue and have gotten nothing. I may never use Kayak again. You represent your affiliates. I am truly disheartened. Timothy Carey.

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 11 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 17 times in the past calendar month.

  • How long is the flight from Boston to Madrid?

    Airlines like Delta, Virgin Atlantic, and KLM fly from Boston to Madrid in about 6h 45m. The time it takes to get you to your destination can typically vary by up to 11h 50m. 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$ 440, 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 52% 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 (90%), Aer Lingus (90%), Finnair (90%).

  • 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, January is the cheapest month in which you can book a flight from Boston to Madrid (average of C$ 738). Flying from Boston to Madrid in June is currently the most expensive (average of C$ 1,189). 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 28 July 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 440AverageC$ 587FlexibilityNo 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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