$244 Find Cheap Flights from Boise to Spain

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 Spain departing on 5/10. 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

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Cheap Flights from Boise to Spain

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Madrid
Madrid2 stops$482
Málaga
Málaga2 stops$1,227
Valencia
Valencia2 stops$507
Bilbao
Bilbao2 stops$484
Madrid
Madrid2 stops$482
Málaga
Málaga2 stops$1,227
Valencia
Valencia2 stops$507
Bilbao
Bilbao2 stops$484

Book Cheap Boise to Spain Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Spain 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 Spain

Thu, Feb 26 - Wed, Mar 11
American Airlines Logo
1:39 pm - 4:55 pm
BOI
-
MAD
19h 16m
2 stops
American Airlines Logo
11:25 am - 10:23 pm
MAD
-
BOI
17h 58m
1 stop
$482American Airlines
Thu, Feb 26 - Tue, Mar 3
Lufthansa Logo
2:40 pm - 10:50 pm
BOI
-
BIO
24h 10m
2 stops
Lufthansa Logo
6:45 am - 9:32 pm
BIO
-
BOI
22h 47m
2 stops
$484Lufthansa
Thu, Feb 26 - Wed, Mar 11
Iberia Logo
7:00 am - 6:15 am
BOI
-
MAD
15h 15m
1 stop
Iberia Logo
11:25 am - 12:48 pm
MAD
-
BOI
32h 23m
1 stop
$485Iberia
Wed, Feb 25 - Wed, Mar 4
American Airlines Logo
1:30 pm - 4:30 pm
BOI
-
BCN
19h 00m
2 stops
American Airlines Logo
12:30 pm - 11:38 pm
BCN
-
BOI
19h 08m
2 stops
$488American Airlines
Thu, Feb 26 - Wed, Mar 11
Delta Logo
7:30 am - 5:40 pm
BOI
-
MAD
26h 10m
2 stops
Delta Logo
10:05 am - 10:25 pm
MAD
-
BOI
19h 20m
1 stop
$496Delta
Thu, Feb 26 - Wed, Mar 11
Delta Logo
10:41 am - 3:20 pm
BOI
-
MAD
20h 39m
2 stops
Delta Logo
6:00 am - 10:07 pm
MAD
-
BOI
23h 07m
2 stops
$499Delta
Fri, Feb 27 - Fri, Mar 6
KLM Logo
10:45 am - 4:05 pm
BOI
-
MAD
21h 20m
2 stops
KLM Logo
6:00 am - 4:15 pm
MAD
-
BOI
18h 15m
2 stops
$505KLM
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
12:16 pm - 11:50 am
BOI
-
VLC
39h 34m
2 stops
United Airlines Logo
6:00 am - 11:38 pm
VLC
-
BOI
25h 38m
2 stops
$507United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
5:00 am - 9:15 am
BOI
-
MAD
20h 15m
2 stops
United Airlines Logo
1:45 pm - 9:32 pm
MAD
-
BOI
39h 47m
2 stops
$517United Airlines
Sat, Apr 11 - Wed, Apr 22
Iberia Logo
6:44 am - 11:15 pm
BOI
-
BIO
32h 31m
2 stops
Iberia Logo
9:35 pm - 9:07 pm
BIO
-
BOI
31h 32m
2 stops
$619Iberia
Booking Insights

KAYAK's insights & trends for Boise to Spain flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Spain, 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 Spain is February, when tickets cost $504 (return) on average. On the other hand, the most expensive months are June and January, when the average cost of round-trip tickets is $1,501 and $1,292 respectively.

How far in advance should I book a flight from Boise to Spain?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boise to Spain, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boise to Spain, you should book around 2 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$244
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly with an average 21% increase in price.
Flight from Boise to Bilbao

FAQs - booking Spain flights

  • How does KAYAK find such low prices on flights from Boise to Spain?

    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 Spain.

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

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

    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 from Boise to Spain with an airline and back with another airline.

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

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

Reviews of the top 5 airlines serving from Boise to Spain

 
Need help choosing which airline to fly with from Boise to Spain? 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 8127 reviews
8.5Crew
8.1Boarding
7.8Entertainment
7.9Comfort
7.2Food
Airline reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

10.0 ExcellentDr. Simon, Jan 2026
LAX - JFK
Read more Delta reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

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.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

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.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

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!

The service was great. However the lounge only gets passing grade

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

My flight to London from Philadelphia was cancelled due to weather.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

The pilot was professional and very good. The flight crew, very young and often looked flustered and overwhelmed. The seats were among the most uncomfortable in the air. The boarding somewhat chaotic. The price reasonable. Overall it was an average budget airline experience...although Iberia is not a budget airline. I fear if Iberia doesn't up it's game customers like us will go elsewhere.

Bad weather Excelent pilot Spoke British 😆on time seats small ad expected in a discount airline

It wasn’t great because the third-party from Kayak there was just no information about how to check in with Vueling. And the purchase of the ticket from under pricer just made everything really difficult. I’m unlikely to use Kayak again for these reasons.

It was fine, older plane with limited entertainment, otherwise fine.

the seats were bad and uncomfortable and the food was not tasty.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

It was budget airline Veuling, even though we booked Iberia.

The staff was very nice and helpful. Some of the best crew I have met.

Bad experience. The seat room are very tight. The food is not good and the breakfast has no hot drink.

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

Information on your arrival and departure airports