$275 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 6/25. 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

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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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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

Wed, Sep 9 - Sun, Sep 13
LEVEL Logo
6:35 am - 9:05 pm
ALC
-
BOS
20h 30m
1 stop
LEVEL Logo
11:35 pm - 9:45 am
BOS
-
ALC
28h 10m
1 stop
$349LEVEL
Thu, Sep 24 - Sun, Oct 4
LEVEL Logo
2:35 pm - 9:05 pm
AGP
-
BOS
12h 30m
1 stop
LEVEL Logo
11:35 pm - 1:25 am
BOS
-
AGP
19h 50m
1 stop
$361LEVEL
Wed, Oct 7 - Wed, Oct 14
Multiple Airlines Logo
1:55 pm - 9:05 pm
PMI
-
BOS
13h 10m
1 stop
Multiple Airlines Logo
10:55 pm - 6:30 pm
BOS
-
PMI
13h 35m
1 stop
$376Multiple Airlines
Tue, Sep 1 - Wed, Sep 30
Multiple Airlines Logo
7:35 pm - 9:05 pm
BIO
-
BOS
31h 30m
1 stop
Multiple Airlines Logo
10:55 pm - 2:05 pm
BOS
-
BIO
33h 10m
1 stop
$417Multiple Airlines
Wed, Oct 14 - Sun, Oct 18
Iberia Logo
7:00 am - 9:05 pm
IBZ
-
BOS
20h 05m
1 stop
Iberia Logo
11:35 pm - 11:40 pm
BOS
-
IBZ
18h 05m
1 stop
$423Iberia
Thu, Sep 10 - Wed, Sep 16
Iberia Logo
6:35 am - 9:05 pm
ALC
-
BOS
20h 30m
1 stop
Iberia Logo
9:05 pm - 1:05 pm
BOS
-
ALC
10h 00m
1 stop
$429Iberia
Thu, Sep 17 - Mon, Sep 21
American Airlines Logo
9:40 am - 4:10 pm
VLC
-
BOS
12h 30m
1 stop
American Airlines Logo
5:40 pm - 9:05 am
BOS
-
VLC
9h 25m
1 stop
$467American Airlines
Thu, Sep 17 - Mon, Sep 21
American Airlines Logo
9:40 am - 4:10 pm
VLC
-
BOS
12h 30m
1 stop
American Airlines Logo
5:40 pm - 9:05 am
BOS
-
VLC
9h 25m
1 stop
$468American Airlines
Thu, Sep 10 - Wed, Sep 16
British Airways Logo
9:15 am - 4:10 pm
ALC
-
BOS
12h 55m
1 stop
British Airways Logo
11:35 am - 8:40 am
BOS
-
ALC
15h 05m
2 stops
$472British Airways
Thu, Jul 9 - Thu, Jul 23
British Airways Logo
2:45 pm - 10:35 pm
VLC
-
BOS
13h 50m
1 stop
British Airways Logo
5:40 pm - 9:05 am
BOS
-
VLC
9h 25m
1 stop
$477British Airways
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 Granada, at $349 return. The most popular connection is from Madrid to Boston and KAYAK users have found round-trip deals for as low as $618 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 $697 on average. The cheapest price found on KAYAK in the last 2 weeks cost $296 and departed from Barcelona-El Prat Airport. The most popular routes on KAYAK are Barcelona to Boston which costs $675 on average, and Madrid to Boston, which costs $830 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 $607. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $923 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 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 November, where tickets cost $551 on average for return flights. On the other hand, the most expensive months are August and June, where the average cost of tickets from Spain is $775 and $766 respectively. For one-way flights, the best month to travel is September with an average price of $474.

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 $766 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 $816.

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 $610 round-trip, from Madrid $674 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 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$275
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Granada 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?

    In the last 5 days, the cheapest flight deal to Boston was found on the route from Granada, at $349 return. The most popular connection is from Madrid to Boston and KAYAK users have found round-trip deals for as low as $618 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 $697. The cheapest price found on KAYAK in the last 2 weeks cost $296 and departed from Barcelona-El Prat 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 Barcelona-El Prat $849, from Madrid $923
  • 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 8394 reviews
8.5Crew
7.8Entertainment
7.8Comfort
7.2Food
8.1Boarding
Airline reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

4.0 OkayMichelle, Jun 2026
ATL - PIT
Read more Delta reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

The seats were really comfortable. Flight crew were friendly with passengers. Overall was a great flight.

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

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Great crew, flight on time, luggage pick up a breeze

Was on time, normal boarding. The worst flight attendents and service I ever seen,, can't believe Delta can have such service. Bathroom was dirty and no toilet paper, paper towels and used toilet paper all over the floor, when I tried to tell flight attendant she didn't even let me to finish and turn around. Very rude. Wi fi didn't work.

Connection flights should be spaced out farther because too close I missed my connection.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

The crew was excellent. What I did not enjoy was the food. I have taken many international flights and this was on the low end. Otherwise the trip was fine.

The passport control process in Lisbon ranks as a 1 on a 1 to 5 scale. Terrible. In line 2 hours and still missed our first flight. Next day, 1.5 hours but we made the flight. The Business Class food was poor. Unidentifiable. Not tasty at all. Unacceptable in BC. Attendants were adequate. Flight left late and arrived late. After this trip, we will not be flying TAP nor will we be connecting through Lisbon.

On both flights, TAP Air Portugal messed up the seating choices that I paid for. They acknowledged that I had purchased seating, that they were errant in ensuring my choices, but told me nothing could be done about it. When I asked to be refunded, I was directed to "talk to someone from Air Portugal" Mon-Friday, and then I was dismissed. No help, no phone number provided to me. I was very annoyed both times and feel cheated.

Business class seats aren't comfortable. Food was not good.

Didn't make announcements during boarding, flight attendant seemed annoyed when I asked for water. Too many hours between flights. Confusing check in at the Lisbon airport.

Delayed at the beginning and the end and almost missed our connection

The food left a lot to be desired. The crew was great

The crew was great. There was a big guy sitting next to me who was hanging over my side of the armrest the entire time. Maybe some information about "Be considerate of your neighbors, this is tight space, be kind". The breakfast sandwich was not appealing at all.

No difference between business class and normal same seat everything same, waste of money

Kayak let me choose these flights on TAP but then after 2 months, cancelled my flights because they didn't think 90 minutes was enough time for the connection. I notice that neither flight was actually cancelled. Just my reservation. Why let me go through all of that effort to find the right flights for us, only to cancel it from underneath us 2 months later leaving us scrambling to find an alternative?

Worst flight I ever experienced, what was supposed to a 7 hour flight ended being 13 hours on a plane with no ac and the worst cabin I have ever seen. Never again.

Excellent plane, 787. Very good seat and additional stuff they provide. Good food. Very good staff.

Excellent except WiFi is a Must on Biz class 10 hour flight ! Didn’t work entire flight. SW doesn’t do that.

Excellent crew, food and service. Boarding via bus is always a pain but overall really good

Stewardess was not attentive at all asked for a bottle of water never came by 15 minutes later I asked her she said that she forgot there was only 12 people in first class and two stewardess unacceptable I ordered the fish was the last person to order. They said that they did not have any had to have a different item pasta at the inside of it because I was diabetic. Worst experience I ever had will never travel this airline again.

Very nice staff, terrible food, not very comfortable premium economy.

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

Traveling to a place near Boston?

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Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston