BOI - BIO

$485 Find Cheap Flights from Boise 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 Boise to Bilbao departing on 2/1. 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 Bilbao

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Bilbao, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Bilbao, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$467
Lufthansa
Sun 2/1Thu 2/26
BOI - BIO • 2 stops
Cheapest one-way
$809
Multiple Airlines
Wed 12/10
BOI - BIO • 3 stops
Start a new search
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We hope you love your trip to Bilbao!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Bilbao (BOI-BIO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Bilbao

Sun, Feb 1 - Thu, Feb 26
Lufthansa Logo
8:15 am - 6:05 pm
BOI
-
BIO
25h 50m2 stops
Lufthansa Logo
6:45 am - 9:32 pm
BIO
-
BOI
22h 47m2 stops
$467Lufthansa
Sat, Jan 31 - Thu, Feb 26
Lufthansa Logo
10:28 am - 11:20 pm
BOI
-
BIO
28h 52m2 stops
Lufthansa Logo
6:45 am - 9:32 pm
BIO
-
BOI
22h 47m2 stops
$471Lufthansa
Sat, Jan 31 - Thu, Feb 26
KLM Logo
1:40 pm - 5:20 pm
BOI
-
BIO
19h 40m2 stops
KLM Logo
6:50 am - 4:15 pm
BIO
-
BOI
17h 25m2 stops
$485KLM
Thu, Jan 29 - Tue, Feb 24
United Airlines Logo
9:48 am - 9:55 pm
BOI
-
BIO
28h 07m2 stops
United Airlines Logo
6:45 am - 11:23 pm
BIO
-
BOI
24h 38m2 stops
$486United Airlines
Sat, Jan 31 - Mon, Feb 23
United Airlines Logo
8:15 am - 12:50 pm
BOI
-
BIO
20h 35m2 stops
United Airlines Logo
12:50 pm - 11:17 am
BIO
-
BOI
30h 27m2 stops
$487United Airlines
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
7:05 pm - 11:20 pm
BOI
-
BIO
20h 15m2 stops
United Airlines Logo
11:35 am - 9:23 pm
BIO
-
BOI
41h 48m2 stops
$488United Airlines
Mon, Feb 2 - Thu, Feb 26
Delta Logo
5:20 am - 5:20 pm
BOI
-
BIO
28h 00m2 stops
Delta Logo
7:25 am - 8:55 pm
BIO
-
BOI
21h 30m2 stops
$490Delta
Mon, Feb 2 - Tue, Feb 24
Delta Logo
9:15 am - 5:20 pm
BOI
-
BIO
24h 05m2 stops
Delta Logo
7:25 am - 4:15 pm
BIO
-
BOI
16h 50m2 stops
$491Delta
Mon, Feb 2 - Sat, Feb 28
United Airlines Logo
10:48 am - 4:40 pm
BOI
-
BIO
21h 52m2 stops
United Airlines Logo
6:45 am - 11:38 pm
BIO
-
BOI
24h 53m2 stops
$498United Airlines
Mon, Jan 19 - Mon, Jan 26
United Airlines Logo
8:15 am - 4:40 pm
BOI
-
BIO
24h 25m2 stops
United Airlines Logo
11:35 am - 10:57 pm
BIO
-
BOI
43h 22m2 stops
$860United Airlines
Booking Insights

KAYAK's insights & trends for Boise to Bilbao flights

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

Which airlines fly non-stop between Boise and Bilbao?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Boise to Bilbao.

There are 3 airlines that fly nonstop from Boise to Bilbao. They are: Delta, KLM and United Airlines. The cheapest price of all airlines flying this route was found with United Airlines at $570 for a round-trip flight. On average, the best prices for this route can be found at United Airlines.

Good to know

Low seasonNovember
Cheapest flight$467
Best time to beat the crowds with an average 46% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from Boise to Bilbao

When to book flights from Boise to Bilbao

Are your dates flexible? Find out the best times to travel from Boise 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 Boise to Bilbao

  • What is the cheapest flight from Boise to Bilbao?

    In the last 3 days, the lowest price for a flight from Boise to Bilbao was $809 for a one-way ticket and $467 for a round-trip.

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

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

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

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

  • Which airline alliances offer flights from Boise to Bilbao?

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

  • Which is the best airline for flights from Boise to Bilbao, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Boise to Bilbao are Delta and KLM. With an average price for the route of $1,317 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $1,317 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from Boise 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 Boise to Bilbao.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Boise 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 Boise 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 Boise with another airline. Booking your flights between Boise 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 Boise 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 Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Boise to Bilbao

 
See real verified KAYAK customer reviews for airlines flying from Boise 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 Boise 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.
7.9
DeltaOverall score based on 8013 reviews
7.9Comfort
8.5Crew
8.1Boarding
7.3Food
7.9Entertainment
Airline reviews

The food is terrible. The staff is wonderful. Comfort is good.

10.0 ExcellentRonda, Dec 2025
JAX - JFK
Read more Delta reviews

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight and crew were great. United didn't inform crew of immigration process which was disappointing!

Everything you need to know for your flight from Boise to Bilbao

Information on your arrival and departure airports