$140 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 8/30. 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

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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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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

Mon, Nov 24 - Sun, Nov 30
Iberia Logo
6:10 pm - 8:55 pmBCN-BOS
8h 45mnonstop
Iberia Logo
10:40 pm - 11:55 amBOS-BCN
7h 15mnonstop
$367Iberia
Find Deal
Tue, Oct 7 - Thu, Oct 16
TAP AIR PORTUGAL Logo
10:40 pm - 2:20 pmBCN-BOS
21h 40m1 stop
TAP AIR PORTUGAL Logo
10:25 pm - 9:50 pmBOS-BCN
17h 25m1 stop
$369TAP AIR PORTUGAL
Find Deal
Thu, Oct 16 - Thu, Oct 23
TAP AIR PORTUGAL Logo
8:10 pm - 2:20 pmBCN-BOS
24h 10m1 stop
TAP AIR PORTUGAL Logo
10:25 pm - 7:20 pmBOS-BCN
14h 55m1 stop
$373TAP AIR PORTUGAL
Find Deal
Thu, Sep 4 - Sun, Sep 7
Vueling Logo
6:30 pm - 9:15 pmBCN-BOS
8h 45mnonstop
Vueling Logo
11:00 pm - 12:15 pmBOS-BCN
7h 15mnonstop
$377Vueling
Find Deal
Thu, Oct 2 - Sun, Oct 5
Vueling Logo
6:30 pm - 9:15 pmBCN-BOS
8h 45mnonstop
Vueling Logo
11:55 pm - 1:10 pmBOS-BCN
7h 15mnonstop
$406Vueling
Find Deal
Wed, Oct 29 - Wed, Nov 5
Iberia Logo
12:30 pm - 4:15 pmMAD-BOS
8h 45mnonstop
Iberia Logo
10:00 pm - 2:15 pmBOS-MAD
10h 15m1 stop
$420Iberia
Find Deal
Sat, Oct 4 - Sun, Oct 26
Delta Logo
10:20 am - 4:30 pmMAD-BOS
12h 10m1 stop
Delta Logo
9:20 pm - 5:00 pmBOS-MAD
14h 40m1 stop
$426Delta
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Fri, Oct 10 - Mon, Oct 20
Delta Logo
10:20 am - 4:30 pmMAD-BOS
12h 10m1 stop
Delta Logo
9:55 am - 7:50 amBOS-MAD
15h 55m1 stop
$430Delta
Find Deal
Mon, Sep 1 - Sat, Sep 13
Finnair Logo
6:30 pm - 9:15 pmBCN-BOS
8h 45mnonstop
Finnair Logo
11:00 pm - 12:15 pmBOS-BCN
7h 15mnonstop
$493Finnair
Find Deal
Sun, Aug 31 - Mon, Sep 15
Finnair Logo
6:30 pm - 9:15 pmBCN-BOS
8h 45mnonstop
Finnair Logo
11:00 pm - 12:15 pmBOS-BCN
7h 15mnonstop
$516Finnair
Find Deal
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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.

In the last 3 days, the cheapest flight deal to Boston was found on the route from Barcelona, at $367 return. The most popular connection is from Madrid to Boston and KAYAK users have found round-trip deals for as low as $378 in the last 3 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 $541 on average. The cheapest price found on KAYAK in the last 2 weeks cost $163 and departed from Barcelona-El Prat Airport. The most popular routes on KAYAK are Barcelona to Boston which costs $580 on average, and Madrid to Boston, which costs $790 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 January, where tickets cost $323 on average for return flights. On the other hand, the most expensive months are June and July, where the average cost of tickets from Spain is $612 and $603 respectively. For one-way flights, the best month to travel is January with an average price of $426.

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 $466 round-trip, from Madrid $696 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 8 weeks before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.


Good to know

Low seasonFebruary
High seasonAugust
Cheapest flight$140
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Barcelona-El Prat to Boston

FAQs - booking Boston flights

  • What is the cheapest flight to Boston?

    In the last 3 days, the cheapest flight deal to Boston was found on the route from Barcelona, at $367 return. The most popular connection is from Madrid to Boston and KAYAK users have found round-trip deals for as low as $378 in the last 3 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 $541. The cheapest price found on KAYAK in the last 2 weeks cost $163 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 Tuesday where round-trip tickets can be as cheap as $568. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $729 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 round-trip flights cost $485 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 $777.

  • How many direct flights to Boston are there each week?

    Each week there are around 3,720 direct flights from within Spain to Boston. The most common day for departures is Friday, with 15% of flights taking off on this day.

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 $484, from Madrid $1,141
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boston flight deals.

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.
8.0
DeltaOverall score based on 7950 reviews
7.9Entertainment
7.3Food
8.2Boarding
7.9Comfort
8.5Crew
Airline reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

10.0 ExcellentHartaj, Jun 2025EWR - RDU
Read more Delta reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Boarding was tough as we had to take a bus out to the plane and walk up a lot of stairs. Difficult with heavy carry-ons that said I got an entire empty row of seats, which was excellent for an international flight. Food was very mediocre but happy with the comfort so not complaining.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

Delta is better for short flights and very low need for customer service. Avoid for longer flights

My luggage got lost and until today there is no solution to the problem. It's still missing

I am writing to demand an immediate refund and compensation for the absolutely unacceptable experience I endured with VUELING this week. On Monday, my flight was canceled, and despite this, I have yet to receive any refund. I was then taken to a hotel in a terrible location, where no food or even water was provided. The next day, I was rebooked on another flight, for which I had to personally cover an additional €50 in transportation costs—only to have that flight canceled as well. After waiting 10 hours, only 10 of us were offered alternative accommodations, while the rest were left stranded. We were forced to remain in this situation until Thursday without a single explanation or proper assistance. During this entire ordeal, we were only provided with breakfast and dinner, while being charged extra for drinks. This level of treatment is completely unacceptable. I expect an immediate refund for the cancelled flights and full compensation for the inconvenience, additional expenses, and the significant distress caused.

Only food for sale. Did not even offer water. No entertainment

Checking was efficient and quick. Adequate luggage space. Food for purchase only at high prices

Nothing. There was no flight. They cancelled the flight with no replacement about 9 hours before takeoff.

The flight was canceled at the last minute. Alternative flight was booked after 6 hours wait in Malaga airport.

Boarding with some sense and communication. It was a total free-for-all everyone coming all at once, no organisation of row numbers or priority.

Horrible, flight cancelled and had to come back the next day

Terrible. For clarity - this was the Level flight to Boston. Not Vueling. Would urge customers to avoid this airline. Gate agent was singularly unhelpful. He was argumentative, rude and went out of his way to ensure that every penny was collected for the baggage (which we realized given how early we were for flight we could have saved hundreds of dollars if we checked in on app). No onboard entertainment or WiFi. Half of the front section was empty because the seats did not work! Plane was falling apart.

No complimentary snacks, but I think that’s a standard in the USA. There were loud drunk Germans sitting in front of us.

Terrible flight attendant attitude. Average 3-star hotel employee has better hospitality skills. Business class seats are literally a joke. TAP executives should ride business class in other airlines to develop some rudimentary sense of what business class is.

I’ve never had worse food in business class ever!

Checked bG chstgr was extremely high. Over $120. It was s bsit and switch knowing an international passenger would have t9 check a bag.

Checkin was very slow, we had checked in online and hoping we could do a bag drop at the airport. However everyone with checked bags had to queue up and it took over 40mins. Our advice arrive extra early or you will be rushing to the gate.

On time, politeness, food okay but entertneiment mediocre with only old movie and the so called new we’re 2 or 3…

Very pleasant flight, crew was very nice. The flight was really smooth, big plane. The seats are kind of close together, so comfort was just OK. The boarding process on the way back to New York was a little chaotic. It took a long time.There were no announcements, no loudspeaker just one staff yelling out of instructions and a lot of people crowding in before their term to board. So that could really be improved a lot.

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

Awful. I told them to cancel my return flight and they didn’t then charged me +$800 days before the flight for a biz class upgrade bid. When I called to confirm cancellation and get refund on buz class upgrade they said I had to go thru orbitz and it was too late. Scammers. Beware.

Little leg room in business. I am tall and could use more.

Was a cheap flight and it got me to Portugal on time. For economy there was ample leg room and the flight attendants were pleasant and helpful.

You get what you pay for. In general I like the service and flight attendants.

Excellent! Outstanding customer service, the best service I have received. Food was served, dinner, snacks, beverages, crew was there to greet you. 10/10

Charging $300 to be able to pick a seat next to your wife was nothing less than extortion.

My carry-on bag was taken from me when I boarded. It was checked through to London at no charge. It took a big of shuffling, but I was glad not to need to mind it until baggage claim.

Great to have power available for every seat in Premium Economy. I do wish the WiFi was less expensive. It was 23-24 Euros for the flight for one device. And there were times it was unavailable.

I’m very mad because I paid an extra $105 to change seats to an exit row with more leg room. The app clearly showed a gap in between the seats in the row I changed my seat to and I paid for it. When I boarded the plane, it wasn’t an exit row seat and no more room than my original seat. I feel like I was ripped off $105.

The crew on AA international flights in my experience are generally lazy, rude, and inefficient. These guys did not disappoint.

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

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

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