BOI - BCN

$359 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 4/11. 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 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
$475
Typical prices: $483-$642
Finnair
Fri 2/20Fri 2/27
BOI - BCN • 1 stop
Cheapest one-way
$359
Multiple Airlines
Sat 4/11
BOI - BCN • 2 stops
Top airlines
American Airlines
Cheapest • from $484 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 51% price drop
March
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 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

Fri, Feb 20 - Fri, Feb 27
Finnair Logo
7:00 am - 8:50 am
BOI
-
BCN
17h 50m1 stop
Finnair Logo
10:40 am - 10:36 pm
BCN
-
BOI
19h 56m1 stop
$475Finnair
Fri, Feb 20 - Fri, Feb 27
Iberia Logo
7:00 am - 1:40 pm
BOI
-
BCN
22h 40m2 stops
Iberia Logo
10:40 am - 10:22 pm
BCN
-
BOI
19h 42m1 stop
$482Iberia
Fri, Feb 20 - Fri, Feb 27
American Airlines Logo
7:00 am - 8:50 am
BOI
-
BCN
17h 50m1 stop
American Airlines Logo
10:40 am - 10:22 pm
BCN
-
BOI
19h 42m1 stop
$484American Airlines
Fri, Feb 20 - Fri, Feb 27
Finnair Logo
7:00 am - 8:50 am
BOI
-
BCN
17h 50m1 stop
Finnair Logo
10:40 am - 10:36 pm
BCN
-
BOI
19h 56m1 stop
$485Finnair
Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
1:58 pm - 4:30 pm
BOI
-
BCN
18h 32m2 stops
Multiple Airlines Logo
10:40 am - 11:42 pm
BCN
-
BOI
21h 02m2 stops
$486Multiple Airlines
Mon, Mar 9 - Mon, Mar 16
Delta Logo
5:50 am - 7:00 am
BOI
-
BCN
18h 10m2 stops
Delta Logo
9:15 am - 9:55 am
BCN
-
BOI
31h 40m2 stops
$489Delta
Fri, Feb 20 - Fri, Feb 27
Delta Logo
5:50 am - 8:00 am
BOI
-
BCN
18h 10m2 stops
Delta Logo
10:55 am - 10:45 pm
BCN
-
BOI
19h 50m2 stops
$490Delta
Sun, Feb 15 - Sun, Feb 22
United Airlines Logo
5:00 am - 9:35 am
BOI
-
BCN
20h 35m2 stops
United Airlines Logo
10:30 am - 10:12 am
BCN
-
BOI
31h 42m2 stops
$493United Airlines
Mon, Mar 9 - Mon, Mar 16
Delta Logo
9:00 am - 3:00 pm
BOI
-
BCN
23h 00m2 stops
Delta Logo
9:45 am - 12:53 pm
BCN
-
BOI
34h 08m1 stop
$495Delta
Sat, Feb 28 - Sat, Mar 7
Multiple Airlines Logo
5:24 pm - 9:35 am
BOI
-
BCN
32h 11m2 stops
Multiple Airlines Logo
3:35 pm - 8:29 pm
BCN
-
BOI
60h 54m2 stops
$496Multiple 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 February.

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 January, where the average cost of round-trip tickets is $1,501 and $1,292 respectively.

Good to know

Low seasonDecember
Cheapest flight$359
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly and prices are also 17% 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 $359 for a one-way ticket and $475 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 Finnair?

    The two airlines most popular with KAYAK users for flights from Boise to Barcelona are Delta and Finnair. With an average price for the route of $935 and an overall rating of 7.9, Delta is the most popular choice. Finnair is also a great choice for the route, with an average price of $972 and an overall rating of 7.6.

  • 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 8023 reviews
8.5Crew
7.8Entertainment
7.2Food
7.9Comfort
8.1Boarding
Airline reviews

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

10.0 ExcellentAnonymous, Dec 2025
DCA - SEA
Read more Delta reviews

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

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.

A 12 hour flight during the day with one real meal service - are you kidding? Also the breakfast was one of the worst and not what was listed

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Aircraft was noisy, old and never dimmed the lights on a night flight even on business class! I flew 17 times on United and probably another 40 on other airlines United USA /Europe flights were the worst to include luggage delayed once going to europe and once coming back

Check how old the airframe is, some older ones have inoperable seat back entertainment or power.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

United is an incompetent airline. They parked the plane on the tarmac for an hour after arriving because they “didn’t have a gate available” it was actually some sort of lie because as we de planed there were approximately 9 open and manned and empty gates that we walked past. Many people on the flight missed connections for the hour long sit on the tarmac. Utterly baffling and incompetent behavior from United flight ops.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

The flight was very smooth and the meal in business class was great.

The captain brought my 6 year old son into the cockpit and allowed him to ask questions, sit in the captain’s chair and talk about all the gears and levers. Made the trip very special for him.

I take this flight about 6-8 times per year. It is convenient and saves an hour or two by skipping PDX, SEA, PHX, or ORD (but it takes longer to get bags to the carousel than Alaska Airlines). I wish the food service were better (but they might cut back on it because it is a red-eye). The WifI seems to go down about an hour out of Anchorage, and then comes back about an hour later...so be warned if this is an issue for you.

Better service. No food options, but we did get drinks and a cookie.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Flight cancellations, delays, mass confusion and disorganization! That’s Air Canada for you, nothing new. I would have chosen a different airline if it were an option, and Air Canada continues to prove they don’t care about their customers.

everything was fine. but paying for 1 piece of check-in luggage and denying passengers to board with carry-on luggage which by air line's standards does not fit is not acceptable. when one travels for a longer time one needs to have some essentials

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

Our biggest complaint about Air Canada is that if you don’t like your seat during check-in, there’s a fee to move elsewhere. On our flight from YUL to FFL, we were charged to change seats—just regular seats. What’s maddening is that the plane wasn’t even full; there were even a few people sleeping in the middle row sections (entire rows, completely empty), using them as beds. In my opinion, charging passengers for seat changes is a cash grab by Air Canada. They are definitely not the airline they were back in the day. I suppose they need to gouge the consumer now that they pay their attendants while on ground. One out of 10.

Nothing specific. Cabin temperature was too high for some reason.

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

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

Information on your arrival and departure airports