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Find cheap flights from Idaho to Portugal from $763

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 Portugal departing on 10/6. 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 5/26
Sun 6/2

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In the last 7 days travelers have searched 44,335,567 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$763
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from Spokane to Lisbon

FAQs for booking flights from Idaho to Portugal

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

    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 Portugal.

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

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

    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 Portugal 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 Portugal?

    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 Portugal 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 Portugal

Recent round-trip flight deals

9/11Wed
2 stopsUnited Airlines
20h 30mBOI-LIS
9/18Wed
2 stopsUnited Airlines
35h 40mLIS-BOI
$988
7/14Sun
2 stopsAir Canada
34h 27mBOI-LIS
7/22Mon
2 stopsAir Canada
53h 22mLIS-BOI
$1,098
9/1Sun
2 stops
18h 55mGEG-LIS
9/29Sun
2 stops
34h 15mLIS-GEG
$1,179
7/2Tue
2 stopsDelta
22h 15mGEG-LIS
7/9Tue
2 stopsDelta
19h 18mLIS-GEG
$1,203
9/11Wed
2 stops
18h 15mBOI-LIS
9/18Wed
3 stops
29h 28mLIS-BOI
$1,251
6/1Sat
2 stopsLufthansa
40h 20mBOI-LIS
6/12Wed
2 stopsLufthansa
18h 40mLIS-BOI
$1,277
7/2Tue
2 stopsDelta
20h 50mGEG-LIS
7/13Sat
2 stopsDelta
19h 18mLIS-GEG
$1,373
6/1Sat
2 stopsLufthansa
40h 20mBOI-LIS
6/8Sat
2 stopsLufthansa
37h 52mLIS-BOI
$1,411
7/13Sat
2 stopsAmerican Airlines
25h 06mBOI-LIS
7/22Mon
2 stopsAmerican Airlines
20h 39mLIS-BOI
$1,677
9/11Wed
2 stopsAmerican Airlines
18h 55mGEG-LIS
9/25Wed
2 stopsAmerican Airlines
21h 53mLIS-GEG
$2,388

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Recent one-way flight deals

10/6Sun
2 stopsIberia
24h 35mGEG-LIS
$763
5/1Wed
2 stops
27h 41mGEG-LIS
$810
8/22Thu
2 stops
25h 56mBOI-LIS
$909
8/22Thu
3 stopsAir Canada
17h 35mBOI-LIS
$1,227
5/1Wed
3 stops
20h 02mGEG-LIS
$1,360
10/6Sun
3 stopsUnited Airlines
21h 15mGEG-LIS
$4,627

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Last minute flights from Idaho to Portugal

Last minute flight, train and bus deals

4/30Tue
multi-stop
32h 45mGEG-LIS
5/2Thu
multi-stop
23h 50mLIS-GEG
$3,650

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Flights to Portugal

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