BOI - BIO

$649 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 6/24. 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
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$741
Typical prices: $861-$655
Air France, KLM
Tue 9/29Tue 10/13
BOI - BIO • 2 stops
Cheapest one-way
$636
United Airlines
Wed 6/24
BOI - BIO • 2 stops
Top airlines
Cheapest • from $744 (round-trip)
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.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Tue, Sep 29 - Tue, Oct 13
Multiple Airlines Logo
1:15 pm - 5:30 pm
BOI
-
BIO
20h 15m
2 stops
Multiple Airlines Logo
6:45 am - 6:33 pm
BIO
-
BOI
19h 48m
2 stops
$741Multiple Airlines
Tue, Sep 29 - Tue, Oct 13
Multiple Airlines Logo
1:15 pm - 5:30 pm
BOI
-
BIO
20h 15m
2 stops
Multiple Airlines Logo
6:45 am - 6:33 pm
BIO
-
BOI
19h 48m
2 stops
$742Multiple Airlines
Tue, Sep 29 - Tue, Oct 13
United Airlines Logo
8:40 am - 4:00 pm
BOI
-
BIO
23h 20m
2 stops
United Airlines Logo
6:50 am - 7:13 pm
BIO
-
BOI
20h 23m
2 stops
$744United Airlines
Tue, Sep 29 - Tue, Oct 13
United Airlines Logo
5:00 am - 11:05 pm
BOI
-
BIO
34h 05m
2 stops
United Airlines Logo
7:15 am - 9:52 pm
BIO
-
BOI
22h 37m
2 stops
$757United Airlines
Mon, Sep 28 - Mon, Oct 12
Multiple Airlines Logo
6:44 am - 11:15 pm
BOI
-
BIO
32h 31m
2 stops
Multiple Airlines Logo
6:45 am - 2:02 pm
BIO
-
BOI
39h 17m
2 stops
$807Multiple Airlines
Mon, Sep 28 - Mon, Oct 12
Multiple Airlines Logo
2:55 pm - 11:15 pm
BOI
-
BIO
24h 20m
2 stops
Multiple Airlines Logo
6:45 am - 2:02 pm
BIO
-
BOI
39h 17m
2 stops
$808Multiple Airlines
Wed, Aug 5 - Wed, Aug 19
Multiple Airlines Logo
3:04 pm - 11:15 pm
BOI
-
BIO
24h 11m
2 stops
Multiple Airlines Logo
6:45 am - 11:27 am
BIO
-
BOI
36h 42m
2 stops
$817Multiple Airlines
Tue, Sep 29 - Tue, Oct 13
United Airlines Logo
2:45 pm - 11:25 pm
BOI
-
BIO
48h 40m
2 stops
United Airlines Logo
7:15 am - 5:58 pm
BIO
-
BOI
18h 43m
2 stops
$832United Airlines
Mon, Jul 6 - Fri, Jul 24
Multiple Airlines Logo
6:20 am - 11:15 pm
BOI
-
BIO
32h 55m
2 stops
Multiple Airlines Logo
6:45 am - 11:21 am
BIO
-
BOI
36h 36m
2 stops
$968Multiple Airlines
Sun, Jul 5 - Fri, Jul 24
Multiple Airlines Logo
3:06 pm - 10:05 pm
BOI
-
BIO
22h 59m
2 stops
Multiple Airlines Logo
6:45 am - 11:21 am
BIO
-
BOI
36h 36m
2 stops
$969Multiple 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.

How much is a round-trip flight from Boise to Bilbao?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boise to Bilbao departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise 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 Boise to Bilbao is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $1,317 and $1,195 respectively.

Good to know

Low seasonNovember
Cheapest flight$636
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly with an average 50% 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 $636 for a one-way ticket and $741 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 United Airlines?

    The two airlines most popular with KAYAK users for flights from Boise to Bilbao are Delta and United Airlines. With an average price for the route of $857 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $649 and an overall rating of 7.4.

  • 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 airlines flying 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 8465 reviews
7.9Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

6.0 GoodSilvestre, Apr 2026
MCO - GRU
Read more Delta reviews

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

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

Information on your arrival and departure airports