BOI - BIO

$347 Find Cheap Flights from Boise to Bilbao

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Bilbao departing on 5/5. 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 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
$567
Typical prices: $860-$1,123
Multiple Airlines
Wed 8/5Wed 8/19
BOI - BIO • 2 stops
Cheapest one-way
$347
Multiple Airlines
Tue 5/5
BOI - BIO • 3 stops
Top airlines
Iberia
Cheapest • from $651 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boise and Bilbao. You'll need at least 2 connections.
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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

Wed, Aug 5 - Wed, Aug 19
Multiple Airlines Logo
2:55 pm - 11:15 pm
BOI
-
BIO
24h 20m
2 stops
Multiple Airlines Logo
6:45 am - 12:46 pm
BIO
-
BOI
38h 01m
2 stops
$567Multiple Airlines
Wed, Aug 5 - Wed, Aug 19
Multiple Airlines Logo
2:55 pm - 11:15 pm
BOI
-
BIO
24h 20m
2 stops
Multiple Airlines Logo
6:45 am - 11:29 am
BIO
-
BOI
36h 44m
2 stops
$598Multiple Airlines
Sun, Apr 5 - Sun, Apr 12
Iberia Logo
1:39 pm - 8:30 am
BOI
-
BIO
34h 51m
2 stops
Iberia Logo
5:35 pm - 9:07 pm
BIO
-
BOI
59h 32m
2 stops
$651Iberia
Sat, Apr 4 - Sat, Apr 11
United Airlines Logo
7:11 am - 10:50 pm
BOI
-
BIO
31h 39m
2 stops
United Airlines Logo
7:15 am - 9:54 am
BIO
-
BOI
34h 39m
2 stops
$698United Airlines
Sat, Apr 4 - Sat, Apr 11
Multiple Airlines Logo
8:20 am - 6:05 pm
BOI
-
BIO
25h 45m
3 stops
Multiple Airlines Logo
6:50 am - 6:05 pm
BIO
-
BOI
19h 15m
2 stops
$1,433Multiple Airlines
Sat, Mar 21 - Sat, Mar 28
United Airlines Logo
6:55 pm - 4:40 pm
BOI
-
BIO
38h 45m
2 stops
United Airlines Logo
11:35 am - 10:35 pm
BIO
-
BOI
42h 00m
2 stops
$1,453United 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 provide the cheapest flights from Boise to Bilbao?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boise to Bilbao were found on Iberia ($651) and United Airlines ($698).

Good to know

Low seasonNovember
Cheapest flight$347
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 39% 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 $347 for a one-way ticket and $567 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 $1,267 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 8235 reviews
8.1Boarding
8.5Crew
7.2Food
7.8Entertainment
7.9Comfort
Airline reviews

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

4.0 OkayJahmes, Feb 2026
LAX - MCO
Read more Delta reviews

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.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Very Very late. Subsequent flights left an hour before ours

This is my worse experience with Delta. My colleagues and I were traveling to ICT for work. Usually we connect in Dallas, but this year we decided to book with Delta and connect in Atlanta. We were excited to fly with Delta because we hear great things and Delta is one of my top choices when choosing an airline for travel. On the connecting flights to and from Wichita/Atlanta - it felt hot and uncomfortable on the plane. The plane to ICT was smaller and older and did not have any wi-fi or entertainment. The most terrible experience was at boarding in Atlanta both times traveling to Wichita and then back to Tampa. First on our flight from ATL to ICT - the attendant scanning our boarding pass made us go back to the line when we went up to scan our passes to wait. After a few minutes, she allowed us to come back up to scan but then she asked what boarding zone we were. We told her zone 5, and since we were standing on the wrong side of the small rope partition, she made us go back to stand on the right side. There was another gentleman that came up to board and scan his pass, and she mentioned he was also on the wrong side but she let him go through. Our group had to walk back and forth for no reason, causing an unnecessary delay to board the plane. We have never experienced anything like this, especially when the boarding area was completely empty and everyone already boarded since boarding was earlier than the original boarding time. On our flight from ATL to TPA, the attendants scanning our boarding passes had us scan our passes twice, not explaining to us what was going on. They automatically started tagging our carry on bags and did not explain to us or tell us what was going on and why this was happening. Obviously we knew our bags were being forced to check in but with no reason. There was no announcement or mention and I have never had anyone force me to check in my bag before boarding the plane. We assumed the overhead bins were full but when we boarded the plane, there was a lot of empty bins and a lot of spaces to put our bags. We all were disappointed and frustrated with Delta and will be hesitant to fly Delta again or anytime soon.

Boarding and crew were fantastic, but I paid for a window seat with no window. Seat 11D on a CRJ-900 apparently does not have a window. Lesson learned.

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

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!

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Flight on time. Excellent service in Premium Economy. Great food served and cleaned up promptly. Unfortunately the climate control was malfunctioning and it was very cold and felt a bit like camping. Cold helps with sleep though so not complaining too much. Slept well. It asks to rate "entertainment". I do not like any IFE, don't shove a big screen in my face—I have my own phone if I want it. So this will always get low ratings.

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

As great a red-eye flight as red-eye flights can be.

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

Information on your arrival and departure airports