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Find cheap flights from Idaho to Barcelona from $429

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Barcelona departing on 5/30. 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
0 bags
Sun 6/9
Sun 6/16

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In the last 7 days travelers have searched 43,895,468 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

June

Cheapest flight

$429
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 47% increase in price.
Flight from Boise to Barcelona

FAQs for booking Idaho to Barcelona flights

  • How does KAYAK find such low prices on flights from Idaho 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 Idaho to Barcelona.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Barcelona from Idaho 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 Idaho 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 Idaho with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho 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 Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Idaho to Barcelona?

Find which airlines fly direct from Idaho to Barcelona-El Prat, which days they fly and book direct flights.

Nonstop departures

Idaho to Barcelona-El Prat

Monday

ANA, AccesRail, Aegean Airlines, +97 more

ANA, AccesRail, +98 more

Tuesday

ANA, AccesRail, Aegean Airlines, +92 more

ANA, AccesRail, +93 more

Wednesday

ANA, AccesRail, Aegean Airlines, +95 more

ANA, AccesRail, +96 more

Thursday

ANA, AccesRail, Aegean Airlines, +101 more

ANA, AccesRail, +102 more

Friday

ANA, AccesRail, Aegean Airlines, +96 more

ANA, AccesRail, +97 more

Saturday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Sunday

ANA, AccesRail, Aegean Airlines, +102 more

ANA, AccesRail, +103 more

See more direct flights

Nonstop returns

Barcelona-El Prat to Idaho

Monday

ANA, AccesRail, Aegean Airlines, +97 more

ANA, AccesRail, +98 more

Tuesday

ANA, AccesRail, Aegean Airlines, +92 more

ANA, AccesRail, +93 more

Wednesday

ANA, AccesRail, Aegean Airlines, +95 more

ANA, AccesRail, +96 more

Thursday

ANA, AccesRail, Aegean Airlines, +101 more

ANA, AccesRail, +102 more

Friday

ANA, AccesRail, Aegean Airlines, +96 more

ANA, AccesRail, +97 more

Saturday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Sunday

ANA, AccesRail, Aegean Airlines, +102 more

ANA, AccesRail, +103 more

See more direct flights
See more direct flights

Book cheap flights from Idaho to Barcelona

Recent round-trip flight deals

8/11Sun
1 stop
23h 05mBOI-BCN
8/21Wed
2 stops
41h 58mBCN-BOI
$691
8/11Sun
2 stopsUnited Airlines
23h 40mBOI-BCN
8/21Wed
2 stopsUnited Airlines
35h 40mBCN-BOI
$696
8/11Sun
2 stops
30h 37mBOI-BCN
8/21Wed
2 stops
41h 58mBCN-BOI
$709
10/29Tue
2 stopsAmerican Airlines
21h 00mBOI-BCN
11/7Thu
2 stopsAmerican Airlines
29h 27mBCN-BOI
$732
10/16Wed
2 stopsITA Airways
24h 25mBOI-BCN
10/23Wed
2 stopsITA Airways
23h 37mBCN-BOI
$800
10/13Sun
2 stopsAmerican Airlines
22h 44mBOI-BCN
10/23Wed
2 stopsAmerican Airlines
20h 54mBCN-BOI
$832
7/22Mon
2 stopsDelta
16h 35mGEG-BCN
8/14Wed
1 stopDelta
33h 03mBCN-GEG
$869
9/19Thu
2 stopsAir Canada
32h 25mBOI-BCN
10/4Fri
2 stopsAir Canada
40h 59mBCN-BOI
$882
7/22Mon
2 stopsDelta
16h 35mGEG-BCN
8/8Thu
2 stopsDelta
19h 52mBCN-GEG
$893
10/13Sun
3 stopsAir Canada
19h 25mBOI-BCN
10/23Wed
3 stopsAir Canada
29h 32mBCN-BOI
$901

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/30Thu
3 stops
42h 05mBOI-BCN
$429
10/12Sat
2 stopsWestJet
22h 45mBOI-BCN
$482
9/10Tue
3 stops
30h 21mBOI-BCN
$518
5/30Thu
2 stops
53h 37mBOI-BCN
$547
5/30Thu
2 stops
29h 37mBOI-BCN
$571
9/12Thu
2 stopsWestJet
22h 25mBOI-BCN
$618
10/12Sat
1 stopUnited Airlines
34h 50mBOI-BCN
$786
10/12Sat
3 stopsAir Canada
19h 25mBOI-BCN
$828
5/29Wed
1 stopUnited Airlines
16h 11mBOI-BCN
$960
6/6Thu
2 stopsIcelandair
37h 25mBOI-BCN
$2,447

Search by stops

Search by airline

Search by price

Flights to Barcelona

Destination:

Barcelona (BCN)Spain

Return flight deals:

Barcelona - Idaho

Cabin classes: