$257 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 4/21. 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

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Wed, Apr 22 - Tue, Apr 28
JetBlue Logo
1:30 pm - 3:35 pm
MAD
-
BOS
8h 05mnonstop
JetBlue Logo
10:35 pm - 11:30 am
BOS
-
MAD
6h 55mnonstop
$401JetBlue
Mon, Apr 20 - Wed, Apr 29
LEVEL Logo
6:30 pm - 9:05 pm
BCN
-
BOS
8h 35mnonstop
LEVEL Logo
10:50 pm - 12:10 pm
BOS
-
BCN
7h 20mnonstop
$407LEVEL
Mon, Apr 6 - Tue, Apr 21
Iberia Logo
6:30 pm - 9:05 pm
BCN
-
BOS
8h 35mnonstop
Iberia Logo
10:50 pm - 12:10 pm
BOS
-
BCN
7h 20mnonstop
$419Iberia
Mon, Apr 6 - Tue, Apr 21
Iberia Logo
6:30 pm - 9:05 pm
BCN
-
BOS
8h 35mnonstop
Iberia Logo
10:50 pm - 12:10 pm
BOS
-
BCN
7h 20mnonstop
$420Iberia
Mon, Apr 13 - Tue, Apr 28
TAP AIR PORTUGAL Logo
3:00 pm - 8:20 pm
BCN
-
BOS
11h 20m
1 stop
TAP AIR PORTUGAL Logo
6:05 pm - 2:00 pm
BOS
-
BCN
13h 55m
1 stop
$424TAP AIR PORTUGAL
Mon, Apr 13 - Tue, Apr 28
TAP AIR PORTUGAL Logo
11:25 am - 8:20 pm
BCN
-
BOS
14h 55m
1 stop
TAP AIR PORTUGAL Logo
6:05 pm - 2:00 pm
BOS
-
BCN
13h 55m
1 stop
$438TAP AIR PORTUGAL
Mon, Apr 20 - Mon, Apr 27
Finnair Logo
5:30 pm - 7:50 pm
MAD
-
BOS
8h 20mnonstop
Finnair Logo
9:20 pm - 10:30 am
BOS
-
MAD
7h 10mnonstop
$455Finnair
Mon, Apr 20 - Wed, Apr 29
Finnair Logo
5:30 pm - 7:50 pm
MAD
-
BOS
8h 20mnonstop
Finnair Logo
5:40 pm - 6:50 am
BOS
-
MAD
7h 10mnonstop
$457Finnair
Tue, Mar 17 - Tue, Apr 7
American Airlines Logo
12:50 pm - 5:10 pm
AGP
-
BOS
33h 20m
1 stop
American Airlines Logo
8:10 pm - 11:40 am
BOS
-
AGP
33h 30m
1 stop
$499American Airlines
Thu, Apr 9 - Thu, Apr 23
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
$500American Airlines
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 $401. Also in the last 3 days, Barcelona was the most budget-friendly place to find a flight to Boston with one-way tickets at $257 and $401 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 $553. The cheapest price found on KAYAK in the last 2 weeks cost $221 and departed from Barcelona-El Prat Airport. The most popular routes on KAYAK are Barcelona to Boston which costs $709 on average, and Madrid to Boston, which costs $620 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 $464 on average for one-way flights. On the other hand, the most expensive months are July and December, where the average cost of tickets from Spain is $862 and $725 respectively. For return trips, the best month to travel is May with an average price of $564.

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 $302 one-way - $296 round-trip, from Madrid $343 one-way - $541 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 71 days before departure.

Good to know

Low seasonFebruary
Cheapest flight$257
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 19% 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 $401. Also in the last 3 days, Barcelona was the most budget-friendly place to find a flight to Boston with one-way tickets at $257 and $401 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 $553. The cheapest price found on KAYAK in the last 2 weeks cost $221 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 $603. On the other hand, the most expensive day to fly is Monday, where prices are $845 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 morning, when flights cost $773 on average. The most expensive time of day to fly to Boston is generally in the evening, which is peak travel time and where the average cost of a ticket is $793.

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 $910, from Barcelona-El Prat $1,033
  • 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 8242 reviews
7.8Entertainment
7.2Food
8.5Crew
8.1Boarding
7.9Comfort
Airline reviews

alike schedule and times it’s very good for me, I will stay wad delta for ever

10.0 Excellentomar, Feb 2026
RAK - ATL
Read more Delta reviews

alike schedule and times it’s very good for me, I will stay wad delta for ever

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

First time flying Business with Tap, I think it was a very good experience. It beats many domestic US carriers, the food options were really great, authentic Portuguese food, wines & deserts. Next time will do the free 24-48 hour stopover in Lisbon or Porto for sure.

Delayed departure Madrid to Lisboa and my luggage no arrived

The cabin crew were curt, not with me, but observed with other passengers. They were unduly rude and it was unprovoked and when they realized they were wrong, they made no attempt to apologize for their own confusion.

I was disappointed of the crew, not friendly and attentive. Delay one way for fuel leakage and the plane is so hot. Not that great all around but I’m glad I experienced it so now know better.

Poor. Our flight was delayed and they told me I would be fine to make my connection in Lisbon, I missed it. Then they told me my bag would be automatically loaded onto my new flight to rome. It wasn’t. It’s been 4 days and I still don’t have it.

Flew Business class and did not like anything, flight attendants were rude and not helpful. Food was of poor quality and I did not eat meals.

I like the price. I dislike the website where I wanted to ask questions about the unusual high prices of the luggage fees. I called the toll free number from the United States and I cannot get through. You should test your own toll free website for info and you will know what I am writing about.

Very long line at the gate, moved slowly. I had expected that boarding a flagship A330neo would be with a jetway directly at the gate, and not a long bus ride to the airplane.

The layover was only one hour and a huge line for passport control. If I didn’t cut the line and argue was every single official, I would’ve spent the night in this one. Obviously.TAP AIR people. do not take into account.this problem with their flight scheduling, which is extremely frustrating. Poor food choices, on the pasta was offered, they ran out of chicken right away. All the sodas and water poured in a tiny 70 mL cups, which is not enough to keep hydrated on the long flight. I had to ask for 34 cups at a time. Flight attendant seemed to be tired and overworked.

I am not very tall, and had a difficult time getting my carry-on placed in the overhead bin while passengers were behind me waiting to get to their seats. After struggling with the luggage, I turned it around, and left it, knowing it was not properly placed, but believing there was adequate room for it in the bin. When the flight attendant came through the cabin, she asked whose bag it was, and scolded me for not positioning it correctly. She turned it around and moved on. I thought that her approach was totally unprofessional, calling out a passenger in that manner.

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

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.

Traveling to a place near Boston?

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

Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston