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BOS - BIO

$467 Find cheap flights from Boston to Bilbao

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Bilbao departing on 9/22. 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
0 bags
Sat 6/29
Sat 7/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Bilbao.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Bilbao.
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Boston to Bilbao (BOS-BIO)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Bilbao 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 and deals for you by selecting your travel dates.
Choose your dates
4:40 pm - 8:30 amBOS-BIO
9h 50m1 stop
6:45 am - 3:05 pmBIO-BOS
14h 20m1 stop
$467American Airlines
Find Deal
Sun, Sep 22 - Thu, Oct 3
12:24 pm - 12:55 pmBOS-BIO
18h 31m2 stops
6:45 am - 3:05 pmBIO-BOS
14h 20m1 stop
$472American Airlines
Find Deal
Sun, Sep 22 - Thu, Oct 3
10:55 pm - 5:00 pmBOS-BIO
12h 05m1 stop
9:35 pm - 3:05 pmBIO-BOS
23h 30m1 stop
$477Iberia
Find Deal
Sun, Sep 22 - Tue, Oct 1
10:55 pm - 11:00 pmBOS-BIO
18h 05m1 stop
7:55 pm - 9:10 pmBIO-BOS
31h 15m1 stop
$521Iberia
Find Deal
Sun, Aug 18 - Tue, Aug 27
8:05 pm - 6:15 pmBOS-BIO
16h 10m2 stops
7:00 pm - 4:00 pmBIO-BOS
27h 00m1 stop
$643Lufthansa
Find Deal
Sun, Aug 18 - Tue, Aug 27
10:55 pm - 11:00 pmBOS-BIO
18h 05m1 stop
11:00 pm - 9:10 pmBIO-BOS
28h 10m1 stop
$696Vueling
Find Deal
Thu, Sep 12 - Sun, Sep 15
5:15 pm - 9:55 amBOS-BIO
10h 40m1 stop
7:10 am - 8:04 pmBIO-BOS
18h 54m2 stops
$728Delta
Find Deal
Tue, Jul 30 - Tue, Aug 20
10:55 pm - 11:00 pmBOS-BIO
18h 05m1 stop
7:10 am - 9:10 pmBIO-BOS
20h 00m1 stop
$794Vueling
Find Deal
Mon, Sep 9 - Fri, Sep 13
10:00 pm - 6:15 pmBOS-BIO
14h 15m1 stop
6:35 pm - 5:50 pmBIO-BOS
29h 15m1 stop
$818Lufthansa
Find Deal
Wed, Jul 10 - Mon, Jul 15
1:29 pm - 9:55 amBOS-BIO
14h 26m2 stops
7:10 am - 3:05 pmBIO-BOS
13h 55m1 stop
$1,151Delta
Find Deal
Fri, Jun 14 - Mon, Jun 24

Flights from Boston to Bilbao - Travel Insights & Trends

Get data-powered insights and trends into flights from Boston to Bilbao to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boston to Bilbao?

The average price of all flights from Boston to Bilbao clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Bilbao on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Boston to Bilbao. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Boston to Bilbao?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Boston to Bilbao, 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 from Boston to Bilbao is January, where tickets cost $601 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,198 and $1,071 respectively.

How far in advance should I book a flight from Boston to Bilbao?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Boston to Bilbao, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Boston to Bilbao, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 61 days before departure.

Which airlines provide the cheapest flights from Boston to Bilbao?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Boston to Bilbao found by KAYAK users in the last 72 hours was for $467 on American Airlines, followed by Iberia ($477). One-way flight deals have also been found from as low as $1,574 on Azores Airlines and from $1,907 on TAP AIR PORTUGAL.

Good to know

Low season

February

High season

September

Cheapest flight

$467
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Boston to Bilbao

When to book flights from Boston to Bilbao

Are your dates flexible? Find out the best times to travel from Boston to Bilbao based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Bilbao

  • What is the cheapest flight from Boston to Bilbao?

    In the last 3 days, the lowest price for a flight from Boston to Bilbao was $1,574 for a one-way ticket and $467 for a round-trip.

  • Do I need a passport to fly between Boston and Bilbao?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Bilbao.

  • Which airports will I be using when flying from Boston to Bilbao?

    Boston airport is called Boston Logan Intl and the only airport in Bilbao is Bilbao.

  • Which aircraft models fly most regularly from Boston to Bilbao?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Bilbao?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Boston and Bilbao, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Bilbao, Delta or Air France?

    The two airlines most popular with KAYAK users for flights from Boston to Bilbao are Delta and Air France. With an average price for the route of $876 and an overall rating of 8.0, Delta is the most popular choice. Air France is also a great choice for the route, with an average price of $912 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Boston to Bilbao?

    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 from Boston to Bilbao.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Bilbao?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from 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 from Boston to Bilbao?

    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 Bilbao with an airline and back to Boston with another airline. Booking your flights between Boston and BIO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Bilbao?

    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 Bilbao from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Boston to Bilbao

 
See real verified KAYAK customer reviews for airlines flying from Boston to Bilbao. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Bilbao? 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 10457 reviews
8.6Crew
8.2Boarding
8.0Entertainment
7.9Comfort
7.4Food
Airline reviews

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

10.0 ExcellentAnonymous, May 2024MSP - YVR
Read more about Delta reviews

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

Iberia was great. American airlines was late for no reason ans with no explanatiom or apologies. We were on the runway for at least 40 minutes before taking off once we finally boarded

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Seriously, not displaying departure gate until very last minute is awful. Specially when you have to take an elevator and then transport to go to the sub-terminal. That’s awful in such a busy airport as Heathrow. And I cannot choose seat on this flight because it’s run by British Airways, even entering locator code.

The absolute worst. Our flight from Madrid to Charlotte was delayed nearly 2hrs which cost us to miss our connecting flight. The only availability was to either separate my party of four (two being children) several other locations to reach our final destination. The other was drop us off at entirely different location we never intended on going. Thus resulting in us driving a rental 2 hrs to our original final destination. On top of that the flight from Madrid was uncomfortable and some staff were extremely rude.

delayed delayed delayed. was supposed to have a 2 hour layover and very nearly missed my connection.

Despite a bumpy flight the pilot was great. The rest of the crew on the other hand couldn’t care less if a passenger would colapse and die. Horrible service, robot like, lifeless…

Pretty fair for the price of the plane ticket. Food was poorly, but overall was a ok experience for a super long flight.

Good. Madrid to SFO was way better than ARN to Madrid. Mercifully, the seats to Madrid didn't recline. So although there was no leg room, your knees didn't get crushed

Overall was good except for the seat which, for an 8 hour intercontinental flight, was uncorfortable. For that kind of flight seats should have more space, even for economy seats.

Needed more info on connecting flight. Late flight made very short connection. Lost luggage that we still do not have!

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

Good food, prompt and timely flight, good on-board personnel

Thankful for 2-4-2 economy seating. Food was ok. Free beer & wine in economy was nice. Served hot dinner, mud- flight snack and pre-arrival ham sandwich. Seat with pillow & blanket. Reasonable movie options. Overall, a good experience. IBERIA APP is terrible terrible terrible.... needs to get upgraded to equivalent of TAP Airlines App. No option to bid or request an upgrade. Very disappointing.

My luggage did not get to my Miami destination/home. I am waiting for it 24 hours later.

The only comment I have is why do you sell snacks on board? They should be free. When we take domestic flights here in US, our snacks are free. Also, please communicate with me in English. I received so many emails way before my flight that were in Spanish that I had to ask my son to interpret for me. You should be WELL AWARE if the customers you are communicating speak the language, it does mean that we speak and understand Spanish because we are traveling to Spain, NOT NECESSARILY! Thank you!

Flight was delayed by well over an hour. Communication was terrible.

The whole flight was coughing and farting all the way. It was impossible to breathe. If people are traveling sick they should either not be allowed to fly or made wear masks

I will never fly vueling. 1h30 delayed, connexion missed with the crew closing the boarding in front of us. 40 people missed the Barcelona-Orly connexion. hours waiting for rebooking and hotel.. inadmissible

3 hr flight from Barcelona to Gran Canaria. Ŵent according to plan No issues with staff oŕ flight. Many people includiñg us could not get luggage self checķ in termìnals to work. Had to wait in check in line.

The communication about the delay could have been better before and during the flight. Also, this online form could have less bugs. It is almost impossible to type in this window.

Boarding was very poor as the flight was initially delayed. We were told the flight would be at 21:40. We were with our 10 month baby who was sleeping. I received an email from Kayak which said the flight was now due to take off at 21:04. When we checked the screens at Gatwick we were told the gate was closed. The lack of communication was extremely poor and we had to run with our baby and there were many other passengers, including elderly people, also running to the gate. When we got to the gate, the staff had no reasons for the poor communication.

I didn't get the wheelchair assistance I'd requested and my flight was on the tarmac, which was extremely painful for me. If this airline isn't for me, that's fine. The crew was fantastic and friendly ab

It was a short flight but the seat was very straight. I didn’t need any service, but wifi was not available. In resume, a normal service. Nice, the punctuality. Thanks

You have couple of KG's grace on checked luggage

Last time bucking this company if I would know I wouldn’t do it, they made me lose my flight

Nous sommes parties de Copenhague avec plus de 2h de retard. L'avion n'a pas pu atterrir à Paris et après avoir encore perdu du temps en vol, a atterri à Bruxelles. Une navette devait nous prendre en charge pour nous ramener à Paris mais personne ne nous a renseignés, on a tourné en rond dans l'aéroport durant plus de 2h, sans trouver de solution pour rentrer (pas de train, pas de voiture de location...). Nous avons fini par monter dans un car affrété par une autre compagnie et qui nous a déposés à CDG. Ensuite il fallu prendre un Uber (il était plus de 2h du matin) pour rentrer, qui a couté presque 90 €. Donc non, je ne suis pas satisfaite des services de la compagnie Vueling.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Boston Logan is a crummy airport - signage is terrible or lacking in areas. Boarding seemed to be a free for all and with all the different airlines speaking, you couldn't tell who was supposed to be where and when. Plain and simple, airlines should board from the back of the plane to the front. Also someone was sitting in my seat. By the time that was figured out, I had to place my overhead behind me which made de-planing more difficult. Logan is not Lufthansa's fault so that is not on them, Boarding is on them! Still, overall it was a Good Experience flying with Lufthansa. This is not my first flight with them...

Overall, the flight was comfortable without any serious issues. Transit through Frankfurt airport was a little confusing, but not too difficult if you follow the signs

There was a screaming child behind our seats. This prevented us from getting any sleep during the night.

There was a screaming child just behind our seats. This prevented us from getting any sleep during the night!!

Staff disappeared after dinner service until breakfast, no help with beds, no help running to our gate to catch connection cause flight was late, our luggage didn’t make it, took over 24 hours to get luggage to hotel, no compensation!!

Everything was good except food. I believe there is room for improvement

Houston to Porto flight delayed landing made us miss our connection. Tried to get on standby for the next flight and even though the lady knew we wouldn’t be able to get on it and she sent us down there. We sat there three hours and then we’re told there’s no way you’re getting on this flight. So we had to go to customer service and ended up having to spend the night in Frankfurt and missed a whole day of our vacation in Porto

my flight was at 3:45 after that they delayed to 4:40 I have transit from Chicago to Frankfurt and Frankfurt to vina airport from vina to Erbil buy the Time I come to Frankfort my other flight left me I have to stay at airport all day with my 5 kids ask for help no one help me I spent at airport almost $450 just for food was horrible flight ever I call and ask for hotel from united customer service they been telling me we can’t provide any hotel I need some refund or fixed my flight when I return to America need some one respond my email

Book cheap flights from Boston to Bilbao

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Bilbao found on KAYAK in the last 72 hours.
7/21Sun
1 stopAzores Airlines
19h 25mBOS-BIO
$1,574
7/21Sun
2 stopsAzores Airlines
18h 10mBOS-BIO
$1,635
11/2Sat
2 stopsAzores Airlines
14h 35mBOS-BIO
$1,676
11/2Sat
1 stopTAP AIR PORTUGAL
17h 45mBOS-BIO
$1,907
7/21Sun
3 stopsUnited Airlines
26h 50mBOS-BIO
$4,157
8/25Sun
3 stops
45h 15mBOS-BIO
$8,629
7/21Sun
2 stopsCathay Pacific
53h 10mBOS-BIO
$8,733
11/2Sat
3 stops
46h 50mBOS-BIO
$29,648

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Boston - Bilbao Flights

Departure:

Boston (BOS)United States

Destination:

Bilbao (BIO)Spain

Return flight deals:

Bilbao - Boston

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