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BOS - BIO

Find cheap flights from Boston to Bilbao from $429

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Bilbao departing on 6/7. 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
Fri 6/7
Fri 6/14

Search hundreds of travel sites at once for deals on flights to Bilbao

 
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 43,968,530 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
11:05 pm - 1:40 pmBOS-BIO
32h 35m1 stop
11:25 am - 9:10 pmBIO-BOS
15h 45m1 stop
$626Vueling
Find Deal
Mon, Jun 3 - Wed, Jun 19
11:05 pm - 10:55 pmBOS-BIO
17h 50m2 stops
11:25 am - 9:10 pmBIO-BOS
15h 45m1 stop
Mon, Jun 3 - Wed, Jun 19
7:55 pm - 10:00 pmBOS-BIO
20h 05m2 stops
7:10 am - 6:00 pmBIO-BOS
16h 50m1 stop
$690Air France
Find Deal
Sat, Aug 3 - Sat, Aug 24
8:05 pm - 11:25 pmBOS-BIO
21h 20m1 stop
7:00 pm - 4:00 pmBIO-BOS
27h 00m1 stop
$722Lufthansa
Find Deal
Mon, Jul 15 - Mon, Jul 29
8:40 pm - 5:50 pmBOS-BIO
15h 10m1 stop
7:35 am - 6:25 pmBIO-BOS
16h 50m1 stop
$788Lufthansa
Find Deal
Tue, May 21 - Sun, May 26
11:05 pm - 11:00 pmBOS-BIO
17h 55m1 stop
3:55 pm - 9:10 pmBIO-BOS
11h 15m1 stop
$819Iberia
Find Deal
Mon, Jun 3 - Wed, Jun 19
1:38 pm - 8:30 amBOS-BIO
12h 52m2 stops
6:45 am - 3:05 pmBIO-BOS
14h 20m1 stop
$992American Airlines
Find Deal
Mon, Jun 3 - Wed, Jun 19
10:55 pm - 11:00 pmBOS-BIO
18h 05m1 stop
3:45 pm - 9:10 pmBIO-BOS
11h 25m1 stop
$1,012Iberia
Find Deal
Thu, Jul 25 - Wed, Jul 31
10:45 pm - 7:20 pmBOS-BIO
14h 35m1 stop
11:00 am - 7:44 amBIO-BOS
26h 44m2 stops
$1,187TAP AIR PORTUGAL
Find Deal
Sat, May 25 - Thu, May 30
10:45 pm - 11:45 amBOS-BIO
31h 00m1 stop
6:45 pm - 2:10 pmBIO-BOS
25h 25m1 stop
$1,659TAP AIR PORTUGAL
Find Deal
Tue, Jul 2 - Sat, Jul 6

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 $603 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,198 and $1,059 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 $626 on Vueling, followed by Air France ($690). One-way flight deals have also been found from as low as $638 on Lufthansa and from $694 on TAP AIR PORTUGAL.

Good to know

Low season

February

High season

September

Cheapest flight

$429
Best time to beat the crowds with an average 20% 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 $429 for a one-way ticket and $626 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, SkyTeam, and oneworld 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, Air France or American Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Bilbao are Air France and American Airlines. With an average price for the route of $1,020 and an overall rating of 7.5, Air France is the most popular choice. American Airlines is also a great choice for the route, with an average price of $804 and an overall rating of 7.3.

  • 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 10789 reviews
8.6Crew
7.9Comfort
7.4Food
8.2Boarding
8.0Entertainment
Airline reviews

West Jet has a horrible boarding process and the seats have no cushion.

4.0 OkayDouglas, May 2024MSP - YEG
Read more about Delta reviews

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

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…

No service due to turbulence. No entertainment on this type of aircraft. But nice old comfortable seats.

Les 2 vols se sont bien passés, le temps de correspondance juste mais nous sommes arrivés à temps.

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.

I like the team but I don't like the food you provided with money. I want free food and free water.

I’m hoping for WiFi included. Everything else was very good

An average flight experience. For our transatlantic portion, they provided a main meal and two snacks. However, the food was not very tasty and the drinks far too small and infrequent for such a long flight. The regrettable part of the flight was that the toilets were extremely filthy. I feel this is unacceptable.

Both flights were delayed. I lost my connection on the way back. No voucher or anything was givenx I had business ticket and no support to make it on time. I got to the door running 5 min after they close. Food really bad. Breakfast in business was worst that I what I remember in economy. Even though I have accumulated many miles, I don’t think Inwill keep buying Iberia. I am a frequent business traveler.

The food is really eco only level. Breakfast was shameful. I am considering to stop flying with Iberia. Business prices are as expensive as other companies with much better service.

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.

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

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.

I liked the regular updates and appreciated the automatic online checkin which didn’t work for our Vueling flight so I had to do this myself.

The baggage policy is pathetic. We paid for our carry-on bags online. Said if we don't remove the wheels of our carry-ons it's not considered a carry-on. We all measured our bags according to the website beforehand. We were not refunded for our bags and were obligated to buy it as checked in bags for over $70 online or $90 over the counter. First and last time I travel with this airline.

Bordón could be bettet if the company say before boarding the order of the different groups.

Checked in is easy and it was a smooth flight from LAX to Munich

There is no recline on flight from DFW to FRA. Middle eastern airways provide better recline option for the same class. FRA to Bangalore has better recline option. I bid 100$ for premium economy, my request was declined. But staff handled it without issues.

The Lufthansa part was wonderful. The short connection flight was not.

German crew were very kind. Food was okay but can be better, especially bread was not good, Garbage collection was very poor.

Awful Terrible staff poor communication Flight delayed for an hour with no apology or explanation and no help re missing connecting flight. Resulted in a 7 hour layover at Munich waiting for another connecting flight. Only 15 euros refreshment voucher given. Will not fly Lufthansa again

Both flights were late for what appeared to be the airline’s not having the planes ready. Arrived over 6 hours late.

It was a busy flight and all the crew were very helpful and gracious

Seats were not the most comfortable and food options weren’t great but overall but everything else was excellent

Already stated....flights were fine. Late luggage a disappointment and failure my Lufthansa to get my bag delivered in a timely fashion.

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.
6/7Fri
3 stops
55h 00mBOS-BIO
$429
6/7Fri
2 stops
21h 25mBOS-BIO
$449
5/24Fri
3 stops
59h 55mBOS-BIO
$453
5/24Fri
2 stops
54h 25mBOS-BIO
$505
6/7Fri
1 stopLufthansa
15h 45mBOS-BIO
$638
5/18Sat
2 stops
16h 05mBOS-BIO
$665
6/6Thu
2 stops
25h 25mBOS-BIO
$668
5/18Sat
1 stopTAP AIR PORTUGAL
19h 05mBOS-BIO
$694
5/24Fri
1 stopLufthansa
20h 45mBOS-BIO
$780
5/24Fri
1 stopTAP AIR PORTUGAL
17h 40mBOS-BIO
$3,073

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Last minute flights from Boston to Bilbao

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Boston to Bilbao that are departing in the next 10 days.
5/9Thu
multi-stop
23h 30mBOS-BIO
5/12Sun
multi-stop
16h 40mBIO-BOS
$1,056
5/9Thu
multi-stop
33h 30mBOS-BIO
5/12Sun
multi-stop
18h 25mBIO-BOS
$1,062
5/9Thu
multi-stop
19h 25mBOS-BIO
5/12Sun
multi-stop
16h 40mBIO-BOS
$1,223
5/9Thu
multi-stop
20h 05mBOS-BIO
5/12Sun
multi-stop
18h 25mBIO-BOS
$1,268
5/9Thu
multi-stop
17h 00mBOS-BIO
5/13Mon
multi-stop
24h 20mBIO-BOS
$4,402
5/9Thu
multi-stop
15h 10mBOS-BIO
5/13Mon
multi-stop
24h 20mBIO-BOS
$4,968
5/9Thu
multi-stopLufthansa
32h 00mBOS-BIO
5/13Mon
multi-stopLufthansa
22h 03mBIO-BOS
$6,894

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Boston - Bilbao Flights

Departure:

Boston (undefined)United States

Destination:

Bilbao (BIO)Spain

Return flight deals:

Bilbao - Boston

Cabin classes:

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