BOI - MAD

$367 Find Cheap Flights from Boise to Madrid

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 Madrid departing on 8/18. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Madrid

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Madrid, 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 Madrid, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Boise to Madrid (BOI-MAD)

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

Sat, Sep 20 - Wed, Oct 15
Air Canada Logo
12:27 pm - 6:40 amBOI-MAD
58h 13m2 stops
Air Canada Logo
12:45 pm - 6:47 pmMAD-BOI
38h 02m2 stops
$570Air Canada
Find Deal
Mon, Sep 22 - Wed, Oct 15
Air Canada Logo
5:00 am - 8:20 amBOI-MAD
19h 20m2 stops
Air Canada Logo
12:45 pm - 6:47 pmMAD-BOI
38h 02m2 stops
$571Air Canada
Find Deal
Tue, Sep 23 - Wed, Oct 15
Air Canada Logo
2:42 pm - 8:20 amBOI-MAD
33h 38m2 stops
Air Canada Logo
12:45 pm - 6:47 pmMAD-BOI
38h 02m2 stops
$576Air Canada
Find Deal
Sat, Sep 20 - Tue, Oct 14
Air Canada Logo
12:27 pm - 6:40 amBOI-MAD
58h 13m2 stops
Air Canada Logo
12:30 pm - 1:33 pmMAD-BOI
33h 03m2 stops
$577Air Canada
Find Deal
Sat, Aug 2 - Thu, Oct 2
Delta Logo
1:29 pm - 9:35 amBOI-MAD
36h 06m1 stop
Delta Logo
10:05 am - 11:52 pmMAD-BOI
21h 47m2 stops
$578Delta
Find Deal
Sat, Aug 2 - Tue, Sep 30
Iberia Logo
3:35 pm - 9:05 amBOI-MAD
33h 30m1 stop
Iberia Logo
8:30 am - 9:48 pmMAD-BOI
21h 18m2 stops
$588Iberia
Find Deal
Sat, Aug 2 - Thu, Oct 2
Delta Logo
6:00 pm - 9:35 amBOI-MAD
31h 35m2 stops
Delta Logo
12:40 pm - 11:59 pmMAD-BOI
19h 19m2 stops
$592Delta
Find Deal
Sat, Sep 20 - Tue, Oct 14
Iberia Logo
1:38 pm - 9:05 amBOI-MAD
35h 27m1 stop
Iberia Logo
12:40 pm - 10:15 pmMAD-BOI
17h 35m1 stop
$593Iberia
Find Deal
Tue, Sep 23 - Fri, Oct 10
United Airlines Logo
5:00 am - 8:20 amBOI-MAD
19h 20m2 stops
United Airlines Logo
11:15 am - 9:52 amMAD-BOI
30h 37m2 stops
$598United Airlines
Find Deal
Sat, Sep 20 - Fri, Oct 10
United Airlines Logo
5:39 pm - 8:05 amBOI-MAD
30h 26m2 stops
United Airlines Logo
11:15 am - 9:52 amMAD-BOI
30h 37m2 stops
$603United Airlines
Find Deal
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KAYAK's insights & trends for Boise to Madrid flights

Get data-powered insights and trends into flights from Boise to Madrid 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 Madrid?

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Madrid, 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 Madrid is January, where tickets cost $643 (return) on average. On the other hand, the most expensive months are May and July, where the average cost of round-trip tickets is $1,187 and $1,169 respectively.

Good to know

Low seasonJanuary
High seasonNovember
Cheapest flight$367
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 26% lower on average.
Flight from Boise to Madrid

When to book flights from Boise to Madrid

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

  • What is the cheapest flight from Boise to Madrid?

    In the last 3 days, the lowest price for a flight from Boise to Madrid was $367 for a one-way ticket and $570 for a round-trip.

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

    Yes

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

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

  • Which airline alliances offer flights from Boise to Madrid?

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

  • Which is the best airline for flights from Boise to Madrid, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Boise to Madrid are Delta and United Airlines. With an average price for the route of $1,005 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $667 and an overall rating of 7.4.

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

    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 Madrid.

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

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

    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 Madrid with an airline and back to Boise with another airline. Booking your flights between Boise and MAD 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 Madrid?

    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 Madrid 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 4 airlines serving from Boise to Madrid

 
See real verified KAYAK customer reviews for airlines flying from Boise to Madrid. 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 Madrid? 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.
8.0
DeltaOverall score based on 7956 reviews
8.5Crew
8.2Boarding
7.9Entertainment
7.9Comfort
7.3Food
Airline reviews

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

4.0 OkayAnonymous, Jul 2025ATL - ROC
Read more Delta reviews

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

this crew didn't care much. bumping carts into seats more times than i care to remember

Very late arrival at PWM. Late jet getting to ATL. Equipment problem with aircraft - could not get enough water onto plane., Another delay getting FAA approval for flight with bottled H2O. Not the crew’s problem.

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

At first, we were on the runway for about an hour, literally. The Captain did explain that the Control Tower just had a change shift (sounds like an unrealistic excuse) and then that we had to change a runway. A regular economy seat is made for 12 yo twiggy. I understand Delta wants to push for an upgrade, but after sitting in a Comfort seat and in First class. I would say First class is not worthy of my money. The landing was delayed because of the weather in NYC, I don't hold that against Delta, of course. The Captain did alert us to that upon takeoff in Vegas and again as we reached NY.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

Great. Very smooth. Plenty of information. However, wish they would give out a menu in advance of making a dinner choice like other international airlines. The flight attendant says chicken or pasta and there are details about ingredients or spices requiring the passenger to ask which requires the flight attendant to answer many times. So easy to solve this problem. P

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

The food should improve! And The flight should leave on time and not make the traveler wait.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Flight was delayed again and again ultimately almost three hours getting us to our location at close to midnight by the time we got in and out of airport to destination. I had taken time off work to enjoy an evening at destination and that was now wasted

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

Delayed and missed connections on leaving the states and returning Planes were old and small- very uncomfortable. Meals were good but very infrequent service for even water/drinks. No explanations for 3+ hour delay

Boarding on the buses isn’t efficient. Overall, it was great.

BEWARE!!! Iberia changes your seats at random. I paid for a window seat and they changed it to one in the middle aisle resting against the bathroom- can’t lean back + hear every flush. This on a 11 hour flight.. There were families that were broken up with separate seats all over the plane. Lots of upset passengers showing their seat confirmation to the besieged and helpless airline steward. Also, the gluten free meal was tasteless.

Iberia airlines was late on every flight I had. It was very difficult to communicate in English with iberia airlines and airport employees.

ground crew and check-in was pathetic - insisted on charging me for luggage even though the ticket said it was already included. They also accidentally sent my luggage through without a luggage tag and had to retrieve it. Generally, it was like a bad movie.

The app on phone and the online check in is not good, it would not give me the option of Spain or Madrid City in the drop down menu and I couldn't move forward with online check in.

Well my luggage was damaged and they lost the plastic cover. I need to file a claim and I would like for someone to follow up with me on this. Thanks.

Not having to check carry on bags when plane wasn’t full. (The told us it was)

Service and food were excellent, could have been more info in English.

I was in business class for the 8 hour flight where: 1. The WiFi did not work 2. The entertainment system did not work 3. We were told there were no hot drinks for the entire flight

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

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