BOI - MAD

$557 Find Cheap Flights from Boise to Madrid

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Madrid departing on 11/18. 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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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

Tue, Nov 18 - Tue, Dec 9
Iberia Logo
7:00 am - 6:15 amBOI-MAD
15h 15m1 stop
Iberia Logo
12:40 pm - 10:25 pmMAD-BOI
17h 45m1 stop
$557Iberia
Find Deal
Tue, Nov 18 - Tue, Dec 9
 Logo
7:00 am - 8:50 amBOI-MAD
17h 50m2 stops
 Logo
12:40 pm - 10:25 pmMAD-BOI
17h 45m1 stop
Tue, Nov 18 - Mon, Dec 8
United Airlines Logo
8:25 am - 8:00 amBOI-MAD
15h 35m2 stops
United Airlines Logo
1:45 pm - 9:16 pmMAD-BOI
39h 31m2 stops
$583United Airlines
Find Deal
Sun, Nov 16 - Sat, Dec 6
Air Canada Logo
6:15 am - 8:00 amBOI-MAD
17h 45m2 stops
Air Canada Logo
1:35 pm - 9:59 amMAD-BOI
28h 24m2 stops
$607Air Canada
Find Deal
Sun, Nov 16 - Sat, Dec 6
 Logo
7:00 am - 8:50 amBOI-MAD
17h 50m2 stops
 Logo
12:40 pm - 10:21 pmMAD-BOI
17h 41m1 stop
Sat, Dec 6 - Sat, Mar 7
United Airlines Logo
7:11 pm - 8:05 amBOI-MAD
28h 54m2 stops
United Airlines Logo
6:00 am - 5:55 pmMAD-BOI
19h 55m2 stops
$618United Airlines
Find Deal
Fri, Jan 2 - Tue, Jan 13
American Airlines Logo
7:42 am - 10:20 amBOI-MAD
18h 38m2 stops
American Airlines Logo
11:00 am - 9:18 pmMAD-BOI
18h 18m2 stops
$715American Airlines
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Wed, Mar 4 - Sat, Mar 7
American Airlines Logo
1:20 pm - 4:55 pmBOI-MAD
19h 35m2 stops
American Airlines Logo
12:55 am - 11:30 amMAD-BOI
18h 35m1 stop
$851American Airlines
Find Deal
Sat, Oct 4 - Sat, Oct 11
Delta Logo
5:45 am - 7:50 amBOI-MAD
18h 05m2 stops
Delta Logo
6:00 am - 4:06 pmMAD-BOI
18h 06m2 stops
$863Delta
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Thu, Nov 20 - Mon, Nov 24
Air Canada Logo
2:31 pm - 8:00 amBOI-MAD
33h 29m3 stops
Air Canada Logo
1:35 pm - 11:39 amMAD-BOI
30h 04m3 stops
$1,093Air Canada
Find Deal

Everything you should know

Top airlines
Iberia
Cheapest • from $557 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
August
Cheapest • 27% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$557
Typical prices: $675-1279
Iberia
Tue 11/18Tue 12/9
BOI - MAD • 1 stop
Cheapest one-way
Multiple Airlines
Mon 9/15
BOI - MAD • multi-stop
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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!
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.

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 August, where tickets cost $628 (return) on average. On the other hand, the most expensive months are May and April, where the average cost of round-trip tickets is $1,187 and $1,067 respectively.

Good to know

Low seasonJanuary
Cheapest flight$557
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 24% 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 $557 for a round-trip ticket.

  • 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, Star Alliance, and SkyTeam 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 $859 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 $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.
7.9
DeltaOverall score based on 7954 reviews
8.5Crew
7.9Comfort
7.3Food
7.9Entertainment
8.2Boarding
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.

Boarding an international flight via several sets of stairs and shuttle busses to the tarmac even when multiple jet-bridges were empty at Madrid airport (the hub for Iberia) was not pleasant. I was fine, but a lot of elderly folks and families with kids were struggling. A bad way to start a flight. Business class seats were nice, although not cleaned well from the prior flight.

The flight was great; I don't see any area of improvement.

The crew were not very personable. The crew did not serve tea or coffee. The bathroom was not kept clean. Two out of the 5 toilets in the cabin weren't working.

Delayed first flight Geneva Madrid.. We didn’t miss our 2nd flight only because the 2nd flight Madrid Dallas was 1h delayed. However we did end up missing the 3rd leg Dallas Austin. Luggage didn’t show up in Dallas. So we re missing 2 suit cases. Customer service sent us to a hotel in Dallas. Only one room booked for 5!! Pretty bad experience overall. I won’t book a flight on Iberia in the future

Crew was excellent, great customer service, checked luggage took 1 hour and a half to come out at the baggage claim, the only negative thing about the flight.

Horrible experience airline crew was unprofessional. Flight was delayed. Suit cases did not arrive. Never flying iberia again

Iberia lost my bag, said they found it in another country, said they sent it to me, but never did. Went my whole trip without my stuff, but expecting it to show up because that’s what they said would happen. Their communication sucks, their website sucks, and to top it all off, their seats are small and uncomfortable. They’re bad at their jobs and they should feel bad about themselves. Do not even get me started on the flight home. AVOID!

The flight was delayed over 4 hours. Business class is just slightly upgraded economy.

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

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

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