$206 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 2/5. 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
$337
Overall average: $440
LEVEL
Mon 3/2Mon 3/9
BCN - BOS • Non-stop
Cheapest one-way
$206
Typical prices: $215-$391
LEVEL
Thu 2/5
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 • 26% 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

Mon, Mar 2 - Mon, Mar 9
LEVEL Logo
6:10 pm - 8:55 pm
BCN
-
BOS
8h 45mnonstop
LEVEL Logo
11:40 pm - 11:55 am
BOS
-
BCN
7h 15mnonstop
$337LEVEL
Sat, Feb 7 - Mon, Feb 23
LEVEL Logo
6:10 pm - 8:55 pm
BCN
-
BOS
8h 45mnonstop
LEVEL Logo
10:40 pm - 11:55 am
BOS
-
BCN
7h 15mnonstop
$338LEVEL
Mon, Feb 16 - Mon, Mar 2
Finnair Logo
6:45 am - 7:50 pm
BIO
-
BOS
19h 05m
1 stop
Finnair Logo
9:20 pm - 11:15 pm
BOS
-
BIO
19h 55m
1 stop
$380Finnair
Mon, Feb 16 - Mon, Mar 2
Finnair Logo
6:45 am - 7:50 pm
BIO
-
BOS
19h 05m
1 stop
Finnair Logo
9:20 pm - 11:15 pm
BOS
-
BIO
19h 55m
1 stop
$382Finnair
Thu, Feb 5 - Thu, Feb 19
Iberia Logo
2:40 pm - 8:55 pm
AGP
-
BOS
12h 15m
1 stop
Iberia Logo
10:40 pm - 12:30 am
BOS
-
AGP
19h 50m
1 stop
$397Iberia
Thu, Feb 5 - Thu, Feb 19
Iberia Logo
9:25 am - 8:55 pm
AGP
-
BOS
17h 30m
1 stop
Iberia Logo
10:40 pm - 12:30 am
BOS
-
AGP
19h 50m
1 stop
$398Iberia
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
9:10 am - 7:50 pm
ALC
-
BOS
16h 40m
1 stop
American Airlines Logo
9:20 pm - 1:10 pm
BOS
-
ALC
9h 50m
1 stop
$401American Airlines
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
9:10 am - 7:50 pm
ALC
-
BOS
16h 40m
1 stop
American Airlines Logo
9:20 pm - 1:10 pm
BOS
-
ALC
9h 50m
1 stop
$402American Airlines
Wed, Mar 18 - Wed, Mar 25
TAP AIR PORTUGAL Logo
7:40 am - 3:35 pm
MAD
-
BOS
12h 55m
1 stop
TAP AIR PORTUGAL Logo
7:05 pm - 11:30 pm
BOS
-
MAD
23h 25m
1 stop
$498TAP AIR PORTUGAL
Thu, Feb 12 - Tue, Feb 17
TAP AIR PORTUGAL Logo
2:15 pm - 2:35 pm
LPA
-
BOS
29h 20m
1 stop
TAP AIR PORTUGAL Logo
6:05 pm - 1:20 pm
BOS
-
LPA
14h 15m
1 stop
$505TAP AIR PORTUGAL
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 $496. Also in the last 3 days, Barcelona was the most budget-friendly place to find a flight to Boston with one-way tickets at $206 and $337 round-trip.

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 $386.

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 $403 one-way - $504 round-trip, from Madrid $526 one-way - $773 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$206
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 20% 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 $496. Also in the last 3 days, Barcelona was the most budget-friendly place to find a flight to Boston with one-way tickets at $206 and $337 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 $625. The cheapest price found on KAYAK in the last 2 weeks cost $318 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 $600. On the other hand, the most expensive day to fly is Monday, where prices are $793 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 $538 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 $536, from Madrid $1,097
  • 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 8073 reviews
7.8Entertainment
8.1Boarding
7.2Food
7.9Comfort
8.5Crew
Airline reviews

My requested wheelchair never appeared. So many entertainment choices yet, I found little of interest and no internet option to search on my own. Both were minor issues.

10.0 ExcellentMichael, Jan 2026
HND - DTW
Read more Delta reviews

My requested wheelchair never appeared. So many entertainment choices yet, I found little of interest and no internet option to search on my own. Both were minor issues.

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Inexperienced boarding crew allowed too many bags on to a full flight and delayed takeoff causing a missed connection and unplanned overnight stay. There was a hotel at the airport but Delta would not pay for it offering only to shuttle me to an area hotel. Never even offerred so much as an apology by anyone working for Delta.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

The seats weren’t reclining even though it wasn’t as exit seat

It was good because we traveled without luggage, carry on only.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

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.

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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