$245 Find Cheap Flights from Spain to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boston departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Boston
These are the airlines KAYAK users have selected most often from within our search results for flights to Boston
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Everything you should know

Cheapest round-trip
$381
Overall average: $577
TAP AIR PORTUGAL
Thu 1/15Fri 2/6
AGP - BOS • 1 stop
Cheapest non-stop
$412
Typical prices: $265-$427
Iberia
Thu 1/29Sat 2/7
BCN - BOS • Non-stop
Our travelers' advice
AI-powered summary based on content written by KAYAK users. AI can make mistakes.
Ensure Iberia isn't using a subcontracted airline.
Avoid excess weight fees on Vueling; they can be high.
User tips
User tips
User tips
User tips
Top routes
BCN-BOS
Cheapest
MAD-BOS
Most popular
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 28% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Spain to Boston

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Spain to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Spain to Boston

Thu, Jan 15 - Fri, Feb 6
TAP AIR PORTUGAL Logo
6:00 am - 8:10 pm
AGP
-
BOS
20h 10m1 stop
TAP AIR PORTUGAL Logo
10:45 pm - 11:15 pm
BOS
-
AGP
18h 30m1 stop
$381TAP AIR PORTUGAL
Fri, Jan 16 - Wed, Jan 21
TAP AIR PORTUGAL Logo
6:30 am - 8:10 pm
SVQ
-
BOS
19h 40m1 stop
TAP AIR PORTUGAL Logo
6:05 pm - 2:40 pm
BOS
-
SVQ
14h 35m1 stop
$383TAP AIR PORTUGAL
Thu, Jan 22 - Fri, Feb 6
TAP AIR PORTUGAL Logo
6:00 am - 2:35 pm
AGP
-
BOS
14h 35m1 stop
TAP AIR PORTUGAL Logo
6:05 pm - 11:15 pm
BOS
-
AGP
23h 10m1 stop
$383TAP AIR PORTUGAL
Sun, Jan 25 - Tue, Feb 3
Iberia Logo
6:10 pm - 8:55 pm
BCN
-
BOS
8h 45mnonstop
Iberia Logo
10:40 pm - 11:55 am
BOS
-
BCN
7h 15mnonstop
$412Iberia
Sun, Jan 25 - Mon, Feb 2
Iberia Logo
6:10 pm - 8:55 pm
BCN
-
BOS
8h 45mnonstop
Iberia Logo
10:40 pm - 11:55 am
BOS
-
BCN
7h 15mnonstop
$413Iberia
Thu, Jan 15 - Mon, Jan 19
LEVEL Logo
6:10 pm - 8:55 pm
BCN
-
BOS
8h 45mnonstop
LEVEL Logo
10:40 pm - 11:55 am
BOS
-
BCN
7h 15mnonstop
$431LEVEL
Thu, Jan 15 - Thu, Jan 29
American Airlines Logo
9:15 am - 7:50 pm
BIO
-
BOS
16h 35m1 stop
American Airlines Logo
12:16 pm - 8:30 am
BOS
-
BIO
14h 14m2 stops
$470American Airlines
Mon, Jan 26 - Tue, Feb 3
Finnair Logo
12:10 pm - 10:56 pm
MAD
-
BOS
16h 46m1 stop
Finnair Logo
4:45 pm - 5:45 am
BOS
-
MAD
7h 00mnonstop
$489Finnair
Thu, Jan 22 - Tue, Jan 27
American Airlines Logo
9:10 am - 3:15 pm
ALC
-
BOS
12h 05m1 stop
American Airlines Logo
12:16 pm - 8:35 am
BOS
-
ALC
14h 19m2 stops
$495American Airlines
Thu, Jan 15 - Wed, Jan 28
Finnair Logo
6:45 am - 10:56 pm
BIO
-
BOS
22h 11m2 stops
Finnair Logo
9:20 pm - 11:15 pm
BOS
-
BIO
19h 55m1 stop
$496Finnair
Booking Insights

KAYAK's insights & trends for flights to Boston

Get data-powered insights and trends for flights to Boston to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Boston?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The flight route Madrid to Boston was the most popular route on KAYAK over the last 3 days. A return flight could be found for $482. Also in the last 3 days, Barcelona was the most budget-friendly place to find a flight to Boston with one-way tickets at $245 and $381 round-trip.

How much is a flight to Boston?

The average and cheapest price for all round-trip flights to Boston from each origin found by users searching on KAYAK in the last month.

On average, a flight to Boston costs $556. The cheapest price found on KAYAK in the last 2 weeks cost $152 and departed from Barcelona-El Prat Airport. The most popular routes on KAYAK are Barcelona to Boston which costs $588 on average, and Madrid to Boston, which costs $972 on average.

See prices from:

What is the cheapest month to fly to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Boston is September, where tickets cost $459 on average for one-way flights. On the other hand, the most expensive months are July and January, where the average cost of tickets from Spain is $895 and $779 respectively. For return trips, the best month to travel is February with an average price of $363.

What is a good deal for flights to Boston?

If you’re looking for cheap airfare to Boston, 25% of our users found tickets to Boston for the following prices or less: From Barcelona-El Prat Airport $280 one-way - $483 round-trip, from Madrid $407 one-way - $557 round-trip.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 54 days before departure.

Good to know

Low seasonFebruary
Cheapest flight$245
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Barcelona-El Prat to Boston

Flights from Spain to Boston: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Spain to Boston 
ErikFlew with Vueling
BCN
-
BOS
Jul 2024
Check in online if you must fly this airline. Avoid excess weight (up to $250 per bag!). Better yet - fly another carrier. Single worst flying experience of my life. And I easily fly 150,000 miles every year with all types of carriers.
CassidyFlew with Iberia
BCN
-
BOS
May 2024
Check to make sure the airline you are booking through is not subcontracting it out to a janky airline to cut costs.

FAQs - booking Boston flights

  • What is the cheapest flight to Boston?

    The flight route Madrid to Boston was the most popular route on KAYAK over the last 3 days. A return flight could be found for $482. Also in the last 3 days, Barcelona was the most budget-friendly place to find a flight to Boston with one-way tickets at $245 and $381 round-trip.

  • How far is Boston Logan Intl Airport from central Boston?

    Boston Logan Intl Airport is 3 miles from the center of Boston.

  • What is the name of Boston’s airport?

    All flights to Boston land at Boston Logan Intl Airport. The airport code is BOS,and it can also be referred to as Boston Logan, General Edward Lawrence Logan Intl, or Logan Intl.

  • How much is a flight to Boston?

    On average, a flight to Boston costs $556. The cheapest price found on KAYAK in the last 2 weeks cost $152 and departed from Barcelona-El Prat Airport.

  • What is the cheapest day to fly to Boston?

    Based on KAYAK data, the cheapest day to fly to Boston is Thursday where tickets can be as cheap as $603. On the other hand, the most expensive day to fly is Monday, where prices are $761 on average.

  • How does KAYAK find such low prices on flights to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Boston?

    The cheapest time of day to fly to Boston is generally in the afternoon, when flights cost $491 on average. The most expensive time of day to fly to Boston is generally in the morning, which is peak travel time and where the average cost of a ticket is $783.

Top tips for finding cheap flights to Boston

  • Looking for cheap airfare to Boston? 25% of our users found round-trip tickets to Boston for the following prices or less: From Madrid $592, from Barcelona-El Prat $695
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boston flight deals.

Reviews of the top 4 airlines serving from Spain to Boston

 
See real verified KAYAK customer reviews for airlines flying to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Spain to Boston. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8013 reviews
8.5Crew
7.9Comfort
7.9Entertainment
7.3Food
8.1Boarding
Airline reviews

The food is terrible. The staff is wonderful. Comfort is good.

10.0 ExcellentRonda, Dec 2025
JAX - JFK
Read more Delta reviews

The food is terrible. The staff is wonderful. Comfort is good.

For some reason, I couldn't choose my seat. The airline gave me a seat when I got there. Not happy about that. Otherwise, everything else was great!

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The boarding process was not good. From check-in, there was only one desk for check-in, which made for a very long line. I asked to print out my boarding pass for the next leg of my trip, also via Aer Lingus, and they said they couldn't. I was unable to do this on the app or online, either. Many fellow passengers I spoke to had the same issue. Because the plane was delayed taking off by 90 minutes, everyone had to quickly go to a desk for their next boarding pass which was chaos. Overall it wasn't a smooth or happy experience.

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

A more organized boarding experience and better food would have made the experience better.

why can't planes be boarded from back to front?? everything was great otherwise

We flew into Barcelona and the plane was so cramped and very uncomfortable and dirty. But we flew out of Madrid and that plane was much better. Would fly Iberia again.

For what we are willing to pay for international air travel, our experience was very good. We had no problem checking in, we had very little wait time at the AA counter in Madrid, and the staff in Madrid were very helpful. The flight crew was helpful and courteous, the plane was on the newer side, and our assigned seats were together without us needing to purchase them. The flight took off on time and arrived early. Overall, it was a pleasant experience or as much as could be expected in economy for almost 10 hours.

Boarding was easy, the flight left on time and even landed 20 minutes early. The food was plentiful and really good! The crew was kind & helpful. Overall it was an exceptional experience!

The flight was safe, confortable and convenient. Thank you. I hope to come back soon!

temperature was too cold there should be free blankets, seat are very uncomfortable, entertainment is limited.

Basic service for a decent price, all amenities are à la cart

The plane needs upgrading, the seats are uncomfortable, we are a family of three and they split us and did nothing to group us together, and the food is horrible compared to other airlines bu

Horrible almost missed my flight because my 1st flight was delayed. Airline crew is so unprofessional. The people on the plane do whatever they want kids running screaming. Will never fly this airline again Suitcases never arrived

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Everything you need to know for your flight to Boston

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