$248 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 2/25. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$386
Overall average: $535
Condor
Thu 5/14Mon 5/25
BCN - BOS • 1 stop
Cheapest non-stop
$389
Typical prices: $243-$473
Iberia
Mon 3/2Tue 3/17
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
BIO-BOS
Cheapest
MAD-BOS
Most popular
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 25% 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, May 14 - Mon, May 25
Condor Logo
8:00 am - 2:45 pm
BCN
-
BOS
12h 45m1 stop
Condor Logo
4:45 pm - 10:00 am
BOS
-
BCN
11h 15m1 stop
$386Condor
Mon, Mar 2 - Tue, Mar 17
Iberia Logo
6:10 pm - 8:55 pm
BCN
-
BOS
8h 45mnonstop
Iberia Logo
11:40 pm - 11:55 am
BOS
-
BCN
7h 15mnonstop
$389Iberia
Wed, Feb 11 - Wed, Feb 18
American Airlines Logo
9:15 am - 3:15 pm
BIO
-
BOS
12h 00m1 stop
American Airlines Logo
4:45 pm - 8:30 am
BOS
-
BIO
9h 45m1 stop
$403American Airlines
Thu, Jan 22 - Mon, Jan 26
American Airlines Logo
9:10 am - 3:15 pm
ALC
-
BOS
12h 05m1 stop
American Airlines Logo
12:16 pm - 9:00 am
BOS
-
ALC
14h 44m2 stops
$404American Airlines
Thu, Feb 5 - Thu, Feb 19
TAP AIR PORTUGAL Logo
6:05 pm - 2:35 pm
BCN
-
BOS
26h 30m1 stop
TAP AIR PORTUGAL Logo
10:45 pm - 5:15 pm
BOS
-
BCN
12h 30m1 stop
$434TAP AIR PORTUGAL
Thu, Feb 5 - Thu, Feb 19
TAP AIR PORTUGAL Logo
6:45 am - 2:35 pm
BCN
-
BOS
13h 50m1 stop
TAP AIR PORTUGAL Logo
10:45 pm - 11:45 pm
BOS
-
BCN
19h 00m1 stop
$445TAP AIR PORTUGAL
Wed, Feb 11 - Wed, Feb 18
Delta Logo
6:50 am - 1:25 pm
BIO
-
BOS
12h 35m1 stop
Delta Logo
1:45 pm - 11:30 am
BOS
-
BIO
15h 45m2 stops
$465Delta
Wed, Feb 4 - Tue, Feb 17
Delta Logo
4:25 pm - 1:25 pm
AGP
-
BOS
27h 00m1 stop
Delta Logo
10:03 am - 12:20 pm
BOS
-
AGP
20h 17m2 stops
$466Delta
Thu, Jan 22 - Wed, Feb 4
KLM Logo
6:00 am - 1:30 pm
VLC
-
BOS
13h 30m1 stop
KLM Logo
8:50 pm - 9:35 am
BOS
-
VLC
30h 45m1 stop
$470KLM
Fri, Mar 27 - Fri, Apr 10
KLM Logo
10:40 am - 7:55 pm
AGP
-
BOS
14h 15m1 stop
KLM Logo
8:25 pm - 7:40 pm
BOS
-
AGP
17h 15m1 stop
$471KLM
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 $491. Also in the last 3 days, Bilbao was the most budget-friendly place to find a flight to Boston with one-way tickets at $282 and $386 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 $617. The cheapest price found on KAYAK in the last 2 weeks cost $240 and departed from Barcelona-El Prat Airport. The most popular routes on KAYAK are Barcelona to Boston which costs $639 on average, and Madrid to Boston, which costs $894 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 $435 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 $862 and $758 respectively. For return trips, the best month to travel is February with an average price of $384.

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 $370 one-way - $504 round-trip, from Madrid $488 one-way - $497 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 seasonJanuary
Cheapest flight$282
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Bilbao 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 $491. Also in the last 3 days, Bilbao was the most budget-friendly place to find a flight to Boston with one-way tickets at $282 and $386 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 $617. The cheapest price found on KAYAK in the last 2 weeks cost $240 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 $599. On the other hand, the most expensive day to fly is Monday, where prices are $794 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 evening, when flights cost $537 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 $791.

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 Barcelona-El Prat $506, from Madrid $1,075
  • 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 8021 reviews
8.1Boarding
7.9Comfort
7.2Food
8.5Crew
7.8Entertainment
Airline reviews

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

8.0 ExcellentG, Jan 2026
ATL - FLL
Read more Delta reviews

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

The folks and flights were fantastic. I unfortunately wasn’t able to order a meal that I could eat (I’m gluten free) because I got my ticket through kayak, but they tried their best to find something to help me get through the long flight and I’ll forever remember their kindness.

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.

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

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.

Boarding, crew, food and baggage handling excellent (no bags lost, yay!). However for an 8 hour flight, there were limited entertainment options. And really would have liked to have a pillow!

The crew was super friendly and helpful. The food was quite good. An overall positive experience.

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

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