BOI - MAD

$480 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 3/11. 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 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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Everything you should know

Cheapest round-trip
$489
Overall average: $700
Multiple Airlines
Sat 2/14Sat 2/21
BOI - MAD • 1 stop
Cheapest one-way
$480
Typical prices: $366-$529
American Airlines
Wed 3/11
BOI - MAD • 2 stops
When to travel
November
Cheapest • 31% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Madrid!
Flight Deals
Booking Insights
Flight 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, Feb 14 - Sat, Feb 21
Multiple Airlines Logo
7:00 am - 6:15 am
BOI
-
MAD
15h 15m1 stop
Multiple Airlines Logo
12:40 pm - 10:36 pm
MAD
-
BOI
17h 56m1 stop
$489Multiple Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
6:40 am - 9:15 am
BOI
-
MAD
18h 35m2 stops
United Airlines Logo
11:15 am - 7:51 pm
MAD
-
BOI
40h 36m2 stops
$498United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
6:40 am - 8:00 am
BOI
-
MAD
17h 20m2 stops
United Airlines Logo
11:15 am - 7:51 pm
MAD
-
BOI
40h 36m2 stops
$502United Airlines
Sat, Feb 14 - Sat, Feb 21
Multiple Airlines Logo
7:00 am - 6:15 am
BOI
-
MAD
15h 15m1 stop
Multiple Airlines Logo
10:00 am - 10:36 pm
MAD
-
BOI
20h 36m2 stops
$593Multiple Airlines
Sat, Feb 14 - Sat, Feb 21
Delta Logo
5:20 am - 4:05 pm
BOI
-
MAD
26h 45m2 stops
Delta Logo
6:00 am - 8:55 pm
MAD
-
BOI
22h 55m2 stops
$602Delta
Sat, Mar 21 - Tue, Mar 24
Multiple Airlines Logo
1:48 pm - 8:05 am
BOI
-
MAD
35h 17m1 stop
Multiple Airlines Logo
6:00 am - 6:43 pm
MAD
-
BOI
19h 43m2 stops
$660Multiple Airlines
Fri, Jan 9 - Fri, Jan 23
Multiple Airlines Logo
11:35 am - 11:55 am
BOI
-
MAD
16h 20m2 stops
Multiple Airlines Logo
12:55 am - 1:08 pm
MAD
-
BOI
20h 13m1 stop
$685Multiple Airlines
Fri, Jan 2 - Mon, Jan 12
Multiple Airlines Logo
7:32 am - 8:50 am
BOI
-
MAD
17h 18m1 stop
Multiple Airlines Logo
12:55 am - 1:08 pm
MAD
-
BOI
20h 13m1 stop
$689Multiple Airlines
Fri, Jan 2 - Tue, Jan 13
Multiple Airlines Logo
7:32 am - 8:50 am
BOI
-
MAD
17h 18m1 stop
Multiple Airlines Logo
4:25 pm - 1:08 pm
MAD
-
BOI
28h 43m2 stops
$693Multiple Airlines
Wed, Feb 4 - Sat, Feb 7
Iberia Logo
7:20 am - 4:55 pm
BOI
-
MAD
25h 35m2 stops
Iberia Logo
12:55 am - 1:08 pm
MAD
-
BOI
20h 13m1 stop
$713Iberia
Booking Insights

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.

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 November, where tickets cost $590 (return) on average. On the other hand, the most expensive months are May and April, where the average cost of round-trip tickets is $1,189 and $1,147 respectively.

Good to know

Low seasonJanuary
Cheapest flight$480
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 3% increase in price.
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 $480 for a one-way ticket and $485 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Boise and Madrid, with Star Alliance 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 $776 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 $673 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.
7.9
DeltaOverall score based on 8021 reviews
7.9Comfort
8.5Crew
7.9Entertainment
8.1Boarding
7.3Food
Airline reviews

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

2.0 MediocreGina, Dec 2025
DTW - ELM
Read more Delta reviews

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Very turbulent trip made it pretty bearable, plus the lack of refreshments served and the lack of any air conditioning before takeoff which took an hour or more.

Flight was late - I was downgraded from first class to coach

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

Not great. Booked Extra seats and got nothing extra at all. It’s basically a big budget airline.

The pilot greased the landing and the crew was fantastic.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

delayed due to weather. Could not communicate with family since the wifi was broken

Experience was good, however I had a delay due to weather happening and had to re purchase a seat on a new plane for a higher price (could be my own issue and misunderstanding) but other than that situation. First time flyer (by myself) was terrific!! The last from ORD to ALO didn't have wifi, but it was only 45 minutes so I'm sure that was part of the reason. Overall my experience was great! Next time I will remember to buy tickets with longer layovers. The delays really saved my overall anxiety. :)

Flight was delayed 17 hours due to aircraft issues. American did provide hotel, transportation and meals, 3 hours past boarding time, but it took us another hour to get the vouchers.

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

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

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.

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.

Excellent. Thanks to United Star Alliance, since economy was overbooked, I’m grateful to have been upgraded to Business Class.

Good plane, excellent food, crew and entertainment. Seats in business could use an upgrade

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.

Flight was OK. Waiting for luggage in Madrid for 55 minutes, unacceptable

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

Information on your arrival and departure airports