BOI - BCN

$357 Find Cheap Flights from Boise to Barcelona

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 Barcelona 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

KAYAK searches hundreds of travel sites at once for deals on flights to Barcelona-El Prat Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Barcelona, 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 Barcelona, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$785
Typical prices: $1,141-$761
Iberia
Sun 9/20Tue 10/13
BOI - BCN • 1 stop
Cheapest one-way
$357
Typical prices: $440-$547
American Airlines
Mon 10/12
BOI - BCN • 2 stops
Top airlines
Cheapest • from $785 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boise and Barcelona. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $839 (round-trip)
Shortest trip • 13h 24m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 50% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Barcelona!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Barcelona (BOI-BCN)

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

Sun, Sep 20 - Tue, Oct 13
Iberia Logo
6:44 am - 10:10 am
BOI
-
BCN
19h 26m
1 stop
Iberia Logo
9:30 pm - 9:05 pm
BCN
-
BOI
31h 35m
2 stops
$785Iberia
Sun, Sep 20 - Tue, Oct 13
Air Canada Logo
6:30 am - 9:20 am
BOI
-
BCN
18h 50m
2 stops
Air Canada Logo
12:15 pm - 9:31 pm
BCN
-
BOI
41h 16m
2 stops
$792Air Canada
Mon, Sep 21 - Fri, Oct 2
United Airlines Logo
8:15 am - 2:20 pm
BOI
-
BCN
22h 05m
1 stop
United Airlines Logo
3:15 pm - 11:06 pm
BCN
-
BOI
15h 51m
1 stop
$804United Airlines
Sun, Sep 20 - Fri, Oct 2
United Airlines Logo
7:01 pm - 2:20 pm
BOI
-
BCN
35h 19m
1 stop
United Airlines Logo
3:15 pm - 11:06 pm
BCN
-
BOI
15h 51m
1 stop
$809United Airlines
Tue, Sep 22 - Tue, Oct 6
United Airlines Logo
7:01 pm - 2:20 pm
BOI
-
BCN
35h 19m
1 stop
United Airlines Logo
3:15 pm - 3:31 pm
BCN
-
BOI
32h 16m
2 stops
$814United Airlines
Sat, Sep 19 - Fri, Oct 2
Air Canada Logo
5:44 pm - 9:20 am
BOI
-
BCN
31h 36m
2 stops
Air Canada Logo
1:15 pm - 1:25 pm
BCN
-
BOI
32h 10m
2 stops
$832Air Canada
Mon, Aug 10 - Fri, Aug 21
American Airlines Logo
12:17 pm - 2:25 pm
BOI
-
BCN
18h 08m
2 stops
American Airlines Logo
10:45 am - 10:20 pm
BCN
-
BOI
19h 35m
1 stop
$833American Airlines
Sun, Aug 9 - Thu, Aug 20
American Airlines Logo
12:17 pm - 10:10 am
BOI
-
BCN
13h 53m
1 stop
American Airlines Logo
10:45 am - 10:20 pm
BCN
-
BOI
19h 35m
1 stop
$837American Airlines
Sun, Sep 27 - Fri, Oct 9
Delta Logo
4:05 pm - 5:10 pm
BOI
-
BCN
17h 05m
2 stops
Delta Logo
1:20 pm - 8:17 pm
BCN
-
BOI
14h 57m
1 stop
$838Delta
Wed, Sep 30 - Tue, Oct 13
United Airlines Logo
10:37 am - 3:35 pm
BOI
-
BCN
20h 58m
2 stops
United Airlines Logo
3:15 pm - 3:31 pm
BCN
-
BOI
32h 16m
2 stops
$840United Airlines
Booking Insights

KAYAK's insights & trends for Boise to Barcelona flights

Get data-powered insights and trends into flights from Boise to Barcelona 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 Barcelona-El Prat Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boise to Barcelona-El Prat Airport departing in September.

What is the cheapest month to fly from Boise to Barcelona-El Prat Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Barcelona-El Prat Airport, 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 Barcelona-El Prat Airport is February, where tickets cost $484 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,726 and $1,269 respectively.

Good to know

Low seasonJanuary
Cheapest flight$357
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Boise to Barcelona

When to book flights from Boise to Barcelona

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

  • What is the cheapest flight from Boise to Barcelona-El Prat Airport?

    In the last 3 days, the lowest price for a flight from Boise to Barcelona-El Prat Airport was $357 for a one-way ticket and $785 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boise and on arrival in Barcelona.

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

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

  • Which airline alliances offer flights from Boise to Barcelona?

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

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

    The two airlines most popular with KAYAK users for flights from Boise to Barcelona are Delta and United Airlines. With an average price for the route of $999 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 $811 and an overall rating of 7.4.

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

    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 Barcelona.

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

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

    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 Barcelona with an airline and back to Boise with another airline. Booking your flights between Boise and BCN 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 Barcelona?

    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 Barcelona 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 5 airlines serving from Boise to Barcelona

 
See real verified KAYAK customer reviews for airlines flying from Boise to Barcelona. 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 Barcelona? 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 8439 reviews
7.2Food
8.5Crew
7.9Comfort
7.8Entertainment
8.1Boarding
Airline reviews

Everything was great. The only issue is unfixable. Seats are too small. 😁🤪

10.0 ExcellentAnonymous, Apr 2026
ATL - AMS
Read more Delta reviews

Everything was great. The only issue is unfixable. Seats are too small. 😁🤪

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

Landed without a gate ready. Plane is extremely old and dirty.

All the amenities was wonderful, if they could keep their prices that low. I'd fly with them all the time.

Very old plane with no inflight entertainment. I purchased the internet pass and it was nearly unusable.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Flight itself excellent, but delayed so missed connection & got to destination 2 hrs later

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

My bags were misplaced!!! Im in a foreign country with no bags

On time departure and early arrival. Flight attendant very nice.

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

The staff was nice. I appreciated that I was able to take an earlier flight, even though it was last minute. The boarding process felt rather chaotic.

Overall a good experience, however Wifi was not working on the flight.

For a 4 1/2 hour international flight all we got was 1 small pack of cookies and a drink. You had to watch movies on your own devise.

Airlines should be prohibited from using the seats they get away with.

My flight got delayed a total of five times. And the boarding gate changed four times. most of the time the platform was not up-to-date with the changes taking place. The most discouraging part of the entire trip by far.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Returned home with a blood clot from flight homes and the uncomfortable aircraft I was on.

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

Flight home was delayed multiple times, did not get home until 2am

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

My original flight was cancelled and then rebooked four hours later on a recovery flight, but I was checked in as stanby and had no seats so as a family of four we were concerned about not being seated altogether. Our flight then got delayed by another 1.5 hours and when seats were assigned at the gate, three of the four of us were together and we could get my wife closer, they offered no assistance.

I bought a ticket from Kayak. When I got to the airport, the was no ticket. I had to pay 5X to get to my destination. No response received from Kayak. I will NEVER use them again.

My wallet was stolen while I was sleeping on the plane.

Good boarding but extremely cold temperature in both flights (60 F!).

The whole plane smelled and felt old. The seats were very uncomfortable. Multiple delays. Extra fees.

Service was good , communication and emails were in Spanish though I booked in English , end up figuring it out but also flight was partnered with air maroc and I had to call them to check on not Iberea doesn’t make sense

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 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.

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

Information on your arrival and departure airports