$356 Find Cheap Flights from Boise to Spain - Compare and Save

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 10/12. 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
Madrid1 stop$604
Málaga
Málaga2 stops$780
Valencia
Valencia2 stops$917
Bilbao
Bilbao2 stops$741
Madrid
Madrid1 stop$604
Málaga
Málaga2 stops$780
Valencia
Valencia2 stops$917
Bilbao
Bilbao2 stops$741

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

Sun, Oct 18 - Sat, Oct 24
Virgin Atlantic Logo
1:43 pm - 12:15 pm
BOI
-
MAD
14h 32m
1 stop
Virgin Atlantic Logo
12:45 pm - 11:55 pm
MAD
-
BOI
19h 10m
2 stops
$604Virgin Atlantic
Sun, Oct 18 - Sat, Oct 24
Virgin Atlantic Logo
1:43 pm - 12:50 pm
BOI
-
BCN
15h 07m
1 stop
Virgin Atlantic Logo
11:00 am - 10:03 pm
BCN
-
BOI
19h 03m
2 stops
$699Virgin Atlantic
Tue, Sep 29 - Tue, Oct 13
United Airlines Logo
6:25 am - 5:55 pm
BOI
-
BIO
27h 30m
2 stops
United Airlines Logo
6:50 am - 5:43 pm
BIO
-
BOI
18h 53m
2 stops
$741United Airlines
Tue, Sep 29 - Tue, Oct 13
United Airlines Logo
6:25 am - 5:55 pm
BOI
-
BIO
27h 30m
2 stops
United Airlines Logo
6:50 am - 5:43 pm
BIO
-
BOI
18h 53m
2 stops
$742United Airlines
Wed, Nov 18 - Thu, Nov 26
United Airlines Logo
6:59 pm - 11:05 pm
BOI
-
BIO
20h 06m
2 stops
United Airlines Logo
7:25 am - 9:19 pm
BIO
-
BOI
21h 54m
2 stops
$743United Airlines
Wed, Nov 18 - Thu, Nov 26
United Airlines Logo
6:59 pm - 11:05 pm
BOI
-
BIO
20h 06m
2 stops
United Airlines Logo
7:25 am - 9:19 pm
BIO
-
BOI
21h 54m
2 stops
$744United Airlines
Wed, Nov 18 - Fri, Nov 27
Delta Logo
10:38 am - 5:25 pm
BOI
-
BIO
22h 47m
2 stops
Delta Logo
7:10 am - 4:49 pm
BIO
-
BOI
17h 39m
2 stops
$747Delta
Sun, Oct 18 - Wed, Oct 28
American Airlines Logo
2:57 pm - 6:25 pm
BOI
-
BCN
19h 28m
2 stops
American Airlines Logo
10:40 am - 10:17 pm
BCN
-
BOI
18h 37m
1 stop
$765American Airlines
Thu, Sep 24 - Wed, Sep 30
Delta Logo
3:28 pm - 6:40 pm
BOI
-
AGP
19h 12m
2 stops
Delta Logo
5:25 pm - 10:59 pm
AGP
-
BOI
37h 34m
2 stops
$780Delta
Wed, Jul 22 - Wed, Jul 29
Air Canada Logo
8:25 am - 5:30 pm
BOI
-
VLC
25h 05m
3 stops
Air Canada Logo
6:00 am - 11:32 am
VLC
-
BOI
37h 32m
3 stops
$1,289Air Canada
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 $467 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,000 and $712 respectively.

Good to know

Low seasonJanuary
Cheapest flight$356
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Boise to Madrid

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.
7.8
DeltaOverall score based on 8455 reviews
7.8Comfort
7.8Entertainment
8.1Boarding
8.5Crew
7.2Food
Airline reviews

It was as good as it could be. Flying is not a pleasant experience these days.

8.0 ExcellentMark, Jun 2026
LAX - ORD
Read more Delta reviews

It was as good as it could be. Flying is not a pleasant experience these days.

The plane was old and thus the seats were not good. No cushion left whatsoever, and it all was a bit worn out.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

I'm a tall guy and even the seats with more leg room were not as comfortable as I had hoped.

Overall, aside from the baggage issue, it was as good as one expects.

My husband is very tall and we generally fly Delta Comfort. We used our companion benefit, and our seats were coach and extremely uncomfortable........ horrid even

I specifically picked out right side aisle seats because my left knee sometimes needs to be stretched. But my experience this trip was that the seats were shuffled and I lost those assigned seats, resulting in me having to sit in a much less desirable position for my comfort.

Other airlines were canceling flights but Delta got us home. Crew was friendly and professional. It would have been nice to have had a little more notice about the delays because we had already arrived at the airport when the first of several delays were communicated but I understand that storm forecasting isn’t simple and we were grateful that Delta didn’t just cancel the flight.

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

On time departure and early arrival. Kind and professional service from flight crew

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

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

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

The best airline I have ever travel , really good customer service, attention and service !!

United Airlines was fantastic, however, UnderPricer was a nightmare. I got to the airport 4 hours before my flight. We are moving to New Zealand so had quite a bit of baggage (16 checked items) and so wanted to have plenty of time to get everything taken care of properly. When I went to check in they (United) could only find a ticket for me. The 5 tickets for my children were never officially ticketed. I called Underpricer and they told me it was United's fault and United told me that Underpricer just needs to reissue the tickets, but they refused to. I asked the Underpricer agent to transfer me to his supervisor as I was not getting the help I needed. He told me the supervisor was busy but that he would call me back in 30 minutes. 30 minutes came and went with no phone call. After an hour I called Underpricer back but they would not let me talk to the person I had talked to before, just told me that he was talking with the supervisor and technical support. I called again an hour later, was told the same thing. I tried again later, with only about 30 minutes until my flight was scheduled to leave (meaning I had been at the airport for more than 3 hours with my 5 children trying to get ticketed and board the flight). Also, my husband had moved to New Zealand 3 months prior, I haven't seen him in 3 months, my children hadn't seen their dad in 3 months, we were all extremely eager to get on that flight and get to New Zealand. The situation with the tickets did not get resolved until after it was too late to check our luggage and board our flight. We were devastated. My 11 year old son was in tears at not being able to be on his way to see his dad. Thankfully we were rebooked for the next evening, but that night it felt devastating. We'd been at the airport for 4 hours waiting. My in-laws waited with me and then helped me reload all our baggage and took us home to stay with them for the night. On the newly booked flights we could not sit together - my children were spread throughout the plane. So, even though I had paid extra to select our seats after buying my seats from Underpricer only two of us were able to sit together (thankful that my 11 year old wasn't all by himself, but not happy that my 14 & 16 year old daughters were seated by strangers). I really feel that Underpricer should refund me what I paid for the seating ($120 USD). It was a very frustrating situation and I plan on never using Kayak or Underpricer ever again.

I flew Delta last week and United Airlines is a poor substitute mechanical problems with the plane and shitty food among other things made my travel experience what’s become to be expected from United no way is it ever worth the money they make us pay

No in flight entertainment, gate employees were very quick and impatient, plane was uncomfortable

One the best cabin crew team we have ever had (I have flown globally for more than 2 million miles), food was good and wines choices were great.⁰

Because I bought my ticket from Underpricer, I could not check in online. I could only check in at the airport and that was deeply frustrating because I had to arrive very early. The flight also departed 45 min late and passengers were given no explanations about why we were delayed. I was worried I would miss my connecting flight. Once on board, however, the flight was fine.

I’m sure Business Class would be excellent. I feel like I got what I paid for. Overall it was good and well worth it. I would do it again.

Boarding: Boarding was a bit of a mess. Our tickets indicated "BC" for Business Class, but we and many others were confused as that was not indicated anywhere in the airport, so we didn't know when we're supposed to board. The airplane: The airplane was nice. However, we sat near the back of the business class cabin and the flight attendants and passengers from other cabins would constantly move the curtain (which was very loud), preventing me from fallling asleep on my 8 hour flight. The flight crew: Amazing, generally. However, they nearly forgot to serve breakfast to me. The flight food: I was able to select my meal for dinner, which was really good. Breakfast was a bit of a mess, however. The crew forgot to serve me breakfast until the last minute. Very little was available by the time they remembered. The entertainment: Paltry, underwhelming, and dated. Not one new movie was available. Bottom line: For the money, you might want to consider other options for your international business class flights.

We arrived 4 hours early and still almost missed the flight because they weren’t able to access one of the boarding tickets. They then sent hour bags late and we were all of our without clothing and eventually had to take an expensive cab back and forth to the airport as they wouldn’t deliver the bag which arrived late at night that day and we would have to wait until noon the began day (messing up a second day of plans). Also, all the food has dairy or pork. No vegan or even vegetarian option in the flight—even for purchase.

The flight delay in Dallas created a domino effect that impacted all of the connecting flights. It also increased the number of connections. I missed my flight from Casablanca to Marrakech because of the tight turnaround when landing in Casablanca. . CMN airport was understaffed. Only one person could help while other employees were just watching him. It was an extremely frustrating situation. People were crying and slamming their palms on the counter when speaking to the customer service provider, Allabough (man’s name?). Allabough couldn’t change my flight in the system. simultaneously, I was on the call with America. Airlines customer service rep named Solomon that said he couldn’t change it either. So, I took a ONYA voyages train to from Casablanca to Marrakech to get there on Friday June 26. This was unpredictable trip.

No entertainment yatem in flight at seat 51H. Would not shut down either leaving a self moving and openin and changing menus with changes in colors,images brightness levels sort of the type when you get sleep deprivation and image overload when being tortured during an interrogation. 8 hours worth of it. Unable to place backpack underneath seat on that chair. One female stewardess was excellent as she gave up her carryon's space for my backpack but the rest of the iberia crew were very sharp an chtting during the whole flight. The plane did not have hot water so nobody had coffee nor tea. The plane was not up to par to be flying.

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

Flight was delayed due to a steering issue with plane. The delay caused me to miss the connecting flight. The delay caused me to spend an extra 21 hours in airports and flights to get to my destination. The plane issue obviously should have been found and fixed before we even boarded. Ridiculous.

entertainment choices, i.e. movie selection not very good. Also, I asked Iberia if an hour flight connection time in madrid was enough for a European flight and they said yes. It wasn't. We made our flight because our ongoing flight was delayed due to airport congestion.

I got food poisoning - lasted 4 days after starting medications - someone should check with food delivery.

Staff was very attentive! Food was good for premium economy airplane food. Clearly an older plane - seat back had to be pulled up manually after being reclined.

Everything ok, but it was a lot of turbulence during the flight.

There was a terrible delay upon arrival in Barcelona. The plane had to park a great distance from the terminal, and only one bus was available to make the ~15 minutes each way trip, meaning it was ~ 45 minutes after we landed that I finally entered the terminal.

Arrived at our connection to find out all 4 of our seats were moved in different parts of the aircraft. Traveling with two small children, this was not going to work. We spoke with the gate attendant and she was not helpful and downright rude. They could only “accommodate” having 2 seats together and this was an international flight. We will not be traveling with air Canada again unless there are absolutely no other options.

Checked bag- one should be free for overseas flights. Seats were extremely uncomfortable. Will probably not fly Canada Air again.

Our flight was cancelled half hour before boarding. We then had to spend hours on the phone to get a much longer re-route through Munich with an extra 10 hours of trip time. It caused us to miss a full day of long awaited vacation. We are extremely disappointed.

Long fight… The staff is very friendly and the meal provided was nice.

The flight crew was extremely accommodating, finding a place for my guitar. Thank you so much! Departure time, however it was delayed almost an hour because the plane was not at our gate on time. We did make up most of that timing flight, however, but it is always annoying to be delayed for that length of time. I was looking forward to the, but, honestly, it was really bad. Overall, however, my first experience with Canada was really good and I would recommend you. Thx.

Il faisait chaud. Il y avait pas de tv. On m'a changé mon siège et je n' ai pas été encore remboursé. On m'a mis à côté porte d'urgence donc je ne pouvais pas mettre bagage au sol face à mon siège

Flight was almost 30 min late. Food was terrible and such tiny portions!! Passengers were hungry. Entertainment system is fine.

The flight was operated by level, who had a sister’s check in procedure (2 hours) due to understaffing and a computer malfunction. While 3 agents stood at the business check in, with a total of maybe one actual customer there at a time, a huge line formed at economy check in with only 1 agent staffing the check in. Then, my luggage was lost - a guitar case with contents inside valued at 3,000 USD. The computer system of LEVEL could not locate my bag and had no record of it, and IBERIA (with whom I purchased my ticket and the checked bag) refused to help. It was a disastrous experience and I will never book Iberia again

Not bad but they lost 2 of my bags when I got to Florence

Couldn’t get boarding passes online, delayed an hour, and smallest amount of space on board I’ve ever encountered for such a long flight.

In general, I've had excellent experiences with Iberia flights and will continue to use them. In this last flight there were two things that didn't go right. I didn't get the kosher meal I had pre-requested when I had checked in on-line. Things worked out OK as we ended up eating the fish and vegetarian choices, which were really good. The other issue was that some movies for me and my wife started fine but after 8-12 minutes the content just switched to something else. The flight attendant reset our entertainment systems, but the problem persisted. We ended up choosing other movies/TV shows that did work fine.

Awful. They didn't even show concern that her connecting flight( Dallas to Mardrid) was gone/missing. I don't understand how that is even possible. Rudest answer from one of the crew was that American Airlines sold the tickets to somebody else. My daughter was not in the list.

The flight was canceled on a Thursday last minute. I lost thousands of dollars in hotels and car rental

Excellent lie flat seat for premium economy! Great staff. Bad food . Not so great entertainment. My bag didn’t make it either.

Really like the idea experience on this airline I will use again

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.

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

Information on your arrival and departure airports