$252 Find Cheap Flights from Spain to Boston - Compare and Save

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 10/17. 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

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

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, Sep 10 - Sun, Sep 20
LEVEL Logo
6:30 pm - 9:05 pmBCN  Barcelona-El Prat-BOS Boston Logan Intl
8h 35mnonstop
LEVEL Logo
11:35 pm - 12:40 pmBOS  Boston Logan Intl-BCN Barcelona-El Prat
7h 05mnonstop
$473LEVEL
Thu, Sep 10 - Thu, Sep 24
LEVEL Logo
6:30 pm - 9:05 pmBCN  Barcelona-El Prat-BOS Boston Logan Intl
8h 35mnonstop
LEVEL Logo
10:55 pm - 12:00 pmBOS  Boston Logan Intl-BCN Barcelona-El Prat
7h 05mnonstop
$473LEVEL
Wed, Oct 14 - Mon, Oct 19
Iberia Logo
6:35 am - 9:05 pmAGP  Malaga-BOS Boston Logan Intl
20h 30m1 stop Barcelona-El Prat
Iberia Logo
5:40 pm - 12:45 pmBOS  Boston Logan Intl-AGP Malaga
13h 05m1 stop Madrid Barajas
$480Iberia
Thu, Oct 15 - Thu, Oct 22
TAP AIR PORTUGAL Logo
3:00 pm - 8:20 pmBCN  Barcelona-El Prat-BOS Boston Logan Intl
11h 20m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:05 pm - 9:50 pmBOS  Boston Logan Intl-BCN Barcelona-El Prat
21h 45m1 stop Lisbon Humberto Delgado
$485TAP AIR PORTUGAL
Fri, Nov 20 - Sat, Nov 28
TAP AIR PORTUGAL Logo
6:45 am - 7:55 pmBCN  Barcelona-El Prat-BOS Boston Logan Intl
19h 10m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:00 pm - 10:05 amBOS  Boston Logan Intl-BCN Barcelona-El Prat
10h 05m1 stop Lisbon Humberto Delgado
$486TAP AIR PORTUGAL
Wed, Sep 9 - Tue, Sep 15
Aer Lingus Logo
12:40 pm - 6:50 pmAGP  Malaga-BOS Boston Logan Intl
12h 10m1 stop Dublin
Aer Lingus Logo
5:25 pm - 11:30 amBOS  Boston Logan Intl-AGP Malaga
12h 05m1 stop Dublin
$486Aer Lingus
Thu, Sep 10 - Wed, Sep 16
Iberia Logo
8:55 am - 9:05 pmBIO  Bilbao-BOS Boston Logan Intl
18h 10m1 stop Barcelona-El Prat
Iberia Logo
10:55 pm - 4:35 pmBOS  Boston Logan Intl-BIO Bilbao
11h 40m1 stop Barcelona-El Prat
$493Iberia
Thu, Sep 10 - Mon, Sep 21
Multiple Airlines Logo
7:20 am - 9:05 pmVLC  Valencia-BOS Boston Logan Intl
19h 45m1 stop Barcelona-El Prat
Multiple Airlines Logo
5:40 pm - 9:05 amBOS  Boston Logan Intl-VLC Valencia
9h 25m1 stop Madrid Barajas
$494Multiple Airlines
Thu, Sep 10 - Mon, Sep 21
Multiple Airlines Logo
7:20 am - 9:05 pmVLC  Valencia-BOS Boston Logan Intl
19h 45m1 stop Barcelona-El Prat
Multiple Airlines Logo
5:40 pm - 9:05 amBOS  Boston Logan Intl-VLC Valencia
9h 25m1 stop Madrid Barajas
$494Multiple Airlines
Fri, Sep 25 - Fri, Oct 2
Aer Lingus Logo
12:40 pm - 6:50 pmAGP  Malaga-BOS Boston Logan Intl
12h 10m1 stop Dublin
Aer Lingus Logo
5:25 pm - 11:30 amBOS  Boston Logan Intl-AGP Malaga
12h 05m1 stop Dublin
$596Aer Lingus
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 5 days.

In the last 5 days, the cheapest flight deal to Boston was found on the route from Seville, at $473 return. The most popular connection is from Barcelona to Boston and KAYAK users have found round-trip deals for as low as $473 in the last 5 days.

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.

A flight to Boston costs $730 on average. The cheapest price found on KAYAK in the last 2 weeks cost $350 and departed from Madrid. The most popular routes on KAYAK are Barcelona to Boston which costs $694 on average, and Madrid to Boston, which costs $892 on average.

See prices from:

What is the cheapest day to fly to Boston?

The average price of all round-trip flights to Boston clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Boston is Thursday where round-trip tickets can be as cheap as $624. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $887 on average.

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 round-trip 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 February, where tickets cost $504 on average for return flights. On the other hand, the most expensive months are June and August, where the average cost of tickets from Spain is $724 and $715 respectively. For one-way flights, the best month to travel is April with an average price of $441.

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

The average price for all round-trip flights to Boston depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Boston is generally in the morning, when round-trip flights cost $725 on average. The most expensive time of day to fly to Boston is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $839.

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 $606 round-trip, from Madrid $664 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 4 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low season

February

Cheapest flight

$252
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Seville 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 
LAURELFlew with Iberia-Jun 2026
DO NOT SIT IN A SEAT IN FRONT OF AN EXIT ROW.
ErikFlew with Vueling-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-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?

    In the last 5 days, the cheapest flight deal to Boston was found on the route from Seville, at $473 return. The most popular connection is from Barcelona to Boston and KAYAK users have found round-trip deals for as low as $473 in the last 5 days.

  • 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 $730. The cheapest price found on KAYAK in the last 2 weeks cost $350 and departed from Madrid Barajas Airport.

  • 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.

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 $943, from Barcelona-El Prat $1,074
  • 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.
7.8
KLMOverall score based on 1557 reviews
7.8Boarding
7.7Comfort
8.4Crew
7.2Entertainment
7.3Food
Airline reviews

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

10.0 ExcellentEmily, Jul 2026
Read more KLM reviews

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

Flight lead was a gentleman with silver hair and he went out of his way to shake hands and interact with each passenger seated in business class. A medical emergency took place during our flight and he handled it with perfect poise and professionalism. He was gracious and confidently competent. Just what you want from a leader,

Boarding took less than 20 minutes total. They offered free snacks and drinks soon after cruising. They offered more refreshments an hour before landing. This was a 3 hour flight. I haven’t seen this post-COVID. I will be flying KLM more often. The cabin was clean and flight attendants were very nice.

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Seats were nice and comfy. Crew was polite and attentive. Business class is awesome and worth the money.

It was operated by Delta. Boarding took a long time. How difficult can it be? Overall decent trip. Liked the Salt Lake City airport. Better option than Chicago for transfers.

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

My experience with Delta started with my luggage being found ripped open with items missing. The baggage office told me to bring the bag, and I wanted them to see how I found it. The agent refused, so I carried my bag into the office myself. The agent was nice enough to fix the zipper and gave me a red card with a number to call. I followed the steps; first one department, then the baggage department took over. This took more than two hours on the phone. The return flight was okay. The flight lead was checking her meals and then asked if we wanted anything before departure. However, throughout the flight, I had to ask for things because she was reading her book;which I have no issue with if she had been more attentive. At the end of the flight, the pilot appeared annoyed with the flight lead for not following his instructions regarding a meal he had requested; a chicken sandwichand said, "I asked for that for the flight." On the positive side, my work event in Vegas went well, and now I'm home relaxing.

Awful. There was an unexpected delay of nearly three hours because there were not enough flight attendants. I understand this is likely due to FAA regulations; but in that case, Delta should coordinate with smaller airports such as RDU to have extra flight attendants on the ground and "on call". In addition, this was the second 2-hour+ delay to Boston on this route in one week.

It was strange that the flight attendant was so adamant about having phones turned to airplane mode that he was calling out names from networks shown and waiting until they were all gone. I've never experienced that before, and after already working through an hour+ delay, it felt tone deaf. I take dozens of flights per year and have never experienced anything similar.

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

This flight was originally delayed by ~45 minutes; which is fine. However, there were additional delays due to late offboarding of the prior flight, unclear issues with the boarding process, delays on the tarmac, and exceptionally long taxiing. None of these issues were communicated proactively. Additionally, the flight had exceptionally rough turbulence, which led to a very uncomfortable flight and no traditional beverage service. Again, this is understandable, but it was not communicated up-front by the flight team.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

If you cant travel Delta One, Comfort Class is the next best thing!

Arrived early, comfortable seats (Comfort+). Mediocre food, poor wifi (intermittent).

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

My flight yesterday evening was delayed 3.5 hours with no water or food service. Poor experience

Flight was delayed. But my finances flight with JetBlue a week before same route was extra delayed and then cancelled at 2am when his flight was suppose to take off at 7pm was never provided a hotel or anything. Came back to airport and his rescheduled flight was cancelled again for 2 days later. Was told since it was a weather issue they don’t do refunds. But that’s a lie because I booked him on another airline at the same time and they were able to take off perfectly fine

Separated a pair of family members(father and teenage daughter) on all legs of the flight that were booked together, just to create an upsell. Food was horrible and only catered to vegetarians and gluten free crowd. I’d rather give more of my money to another straight shooting airline.

A nightmare. Scheduled flight delayed 2 hours then cancelled because pilot timed out . Unable to find another pilot. Really?! Weather certainly a factor, but JetBlue seemed totally unprepared for the chaos that ensued when flight routes were cancelled. More cancelled flights, finally many of us who had been bumped from other flights were allowed to board a Boston bound plane around 3:00am, delay after delay, sat on tarmac for another half hour while pilot dealt with weight distribution issues (?), arrived in Boston 4:30. Crew were wonderful- same attendants all day and night and they were exhausted. Fortunately for me and my son that Boston was our final destination, not so lucky for many who missed connecting flights.

The flight was delayed 14 hours and communication was very poor. No one seemed to know what was happening and the gate agent was trying to help people for several flights. She was by herself trying to help 100s of people.

For whatever reason, I could not check in online. Kept getting the "It's not you it's us" message. Even when we tried the kiosk at the airport - same results. The check-in person had a very difficult time getting our boarding passes together despite the fact that we could show confirmation on the jetblue website. After a very long time we finally got boarding passes. The only other issue is, my vegetarian meal featured chicken.

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

This was the first flight I've taken since pre-pandemic. I was pleased with how orderly the boarding and disembarking went. The seats were comfortable. I loved that there was no "first class'. The attendants and passengers I met were all very friendly and welcoming.

Boarding was extremely slow and disorganized. Onboard crew was unfriendly.

There was a screen but no earphones that could use the older input so I could listen to anything.

The flight from Madrid to Boston was awful. Without prior warning, I was seated in the row in front of an exit row where my seat did not recline. The person in front of me reclined, reducing my already tiny space further. This was the WORST flight I've ever had.

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!

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.

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.

Even in the premium economy, I found the seats incredibly uncomfortable. I hated that booking through Kayak, it wasn't clear that it was a Level flight, not Iberia. Everything felt cheaply made and not at all worth the airfare we paid.

I wish they could put the pre-tsa check on the tickets or global entry.

We upgraded to Business class paying approx. $1,300. Despite the upgrade, we were still required to pay an additional €70 for a checked bag. Furthermore, we were informed that another €70 would have been charged for our carry-on bag, as it was 3kg over the limit. To avoid this, we had to move clothing from the carry-on into the checked bag, which was both inconvenient and frustrating. Given the significant amount paid for the Business Class upgrade, we found this treatment to be quite appalling and disappointing. We expected a higher level of service and consideration for our luggage, and this experience did not meet those expectations.

8+ hour flight with no tvs working and no usb port working to charge ones own devices was brutal (traveled with 2 small kids)… yikes

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Everett
Warwick
Hampton
Wells
Middletown
Waltham
Plymouth
South Portland
Brookline
Revere
Concord
Gloucester
Woburn
York Beach
Burlington
West Yarmouth
Danvers
Braintree
Somerville

Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston