Find flights
When to book
FAQs & Tips
Deals

Find cheap flights from Idaho to Spain from $377

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho to Spain departing on 9/21. 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
Sat 7/6
Sat 7/13

Search hundreds of travel sites at once for deals on flights to Spain

In the last 7 days travelers have searched 43,995,393 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Good to know

Low season

January

High season

June

Cheapest flight

$377
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 37% increase in price.
Flight from Boise to Barcelona

FAQs for booking flights from Idaho to Spain

  • How does KAYAK find such low prices on flights from Idaho to Spain?

    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 Spain.

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

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

    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 Spain 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 Spain?

    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 Spain from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Idaho to Spain

Recent round-trip flight deals

11/12Tue
2 stops
39h 20mBOI-BCN
11/19Tue
2 stops
35h 43mBCN-BOI
$586
11/17Sun
2 stopsAmerican Airlines
23h 11mBOI-BCN
11/27Wed
2 stopsAmerican Airlines
31h 08mBCN-BOI
$623
11/12Tue
3 stopsAir Canada
20h 45mBOI-BCN
11/19Tue
3 stopsAir Canada
31h 59mBCN-BOI
$632
11/12Tue
2 stopsUnited Airlines
33h 37mBOI-BCN
11/22Fri
2 stopsUnited Airlines
21h 51mBCN-BOI
$637
11/12Tue
2 stopsDelta
25h 30mBOI-BCN
11/22Fri
2 stopsDelta
31h 42mBCN-BOI
$641
11/14Thu
3 stopsAir Canada
18h 25mBOI-MAD
11/22Fri
3 stopsAir Canada
31h 59mMAD-BOI
$663
10/13Sun
2 stopsUnited Airlines
19h 20mBOI-BCN
10/23Wed
2 stopsUnited Airlines
33h 02mBCN-BOI
$667
11/14Thu
2 stopsDelta
24h 05mBOI-MAD
11/22Fri
2 stopsDelta
31h 42mMAD-BOI
$679
11/13Wed
2 stopsAir France
20h 45mBOI-AGP
11/20Wed
2 stopsAir France
36h 02mAGP-BOI
$705
6/19Wed
2 stopsAir France
18h 05mBOI-BCN
7/2Tue
2 stopsAir France
22h 20mBCN-BOI
$1,090

Search by stops

Search by airline

Search by price

Recent one-way flight deals

9/21Sat
2 stops
37h 11mBOI-BCN
$377
10/7Mon
2 stopsAir France
19h 20mJAC-BCN
$520
10/12Sat
2 stopsDelta
31h 00mJAC-BCN
$526
9/21Sat
3 stops
31h 11mBOI-BCN
$541
10/6Sun
2 stopsDelta
31h 15mJAC-BCN
$548
10/10Thu
2 stopsUnited Airlines
18h 00mJAC-BCN
$570
10/11Fri
2 stopsUnited Airlines
21h 45mJAC-BCN
$576
11/12Tue
3 stopsAir Canada
35h 06mBOI-BCN
$603
6/11Tue
2 stopsKLM
19h 03mBOI-MAD
$607
9/12Thu
3 stopsAir Canada
19h 25mBOI-BCN
$653

Search by stops

Search by airline

Search by price

Last minute flights from Idaho to Spain

Last minute flight, train and bus deals

6/10Mon
multi-stopDelta
20h 15mGEG-MAD
6/17Mon
multi-stopDelta
19h 47mMAD-GEG
$1,001
6/10Mon
multi-stopDelta
20h 15mGEG-MAD
6/17Mon
multi-stopDelta
22h 02mMAD-GEG
$1,005
6/7Fri
multi-stopUnited Airlines
25h 15mGEG-BCN
6/16Sun
multi-stopUnited Airlines
18h 32mBCN-GEG
$1,122
6/9Sun
multi-stop
41h 57mBOI-BCN
6/14Fri
multi-stop
52h 23mBCN-BOI
$1,297
6/9Sun
multi-stop
43h 51mBOI-BCN
6/14Fri
multi-stop
38h 18mBCN-BOI
$1,347
6/7Fri
multi-stop
24h 41mGEG-BCN
6/16Sun
multi-stop
34h 29mBCN-GEG
$1,536
6/7Fri
multi-stopUnited Airlines
27h 46mGEG-BCN
6/16Sun
multi-stopUnited Airlines
18h 32mBCN-GEG
$1,562
6/9Sun
multi-stop
34h 24mBOI-BCN
6/14Fri
multi-stop
20h 16mBCN-BOI
$1,903
6/10Mon
multi-stopAmerican Airlines
15h 55mGEG-MAD
6/17Mon
multi-stopAmerican Airlines
17h 56mMAD-GEG
$1,914
6/9Sun
multi-stopLufthansa
20h 13mBOI-BCN
6/14Fri
multi-stopLufthansa
15h 47mBCN-BOI
$2,399

Search by stops

Search by airline

Search by price

Flights to Spain

Return flight deals:

Spain - Idaho

Cabin classes: