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Find cheap flights from Idaho to Lisbon from $823

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Lisbon departing on 10/27. 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
Tue 6/4
Tue 6/11

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In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

September

Cheapest flight

$823
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Boise to Lisbon

FAQs for booking flights from Idaho to Lisbon

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

    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 Lisbon.

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

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

    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 Lisbon 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 Lisbon?

    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 Lisbon 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 Lisbon?

Find which airlines fly direct from Idaho to Humberto Delgado, which days they fly and book direct flights.

Nonstop departures

Idaho to Lisbon Humberto Delgado

Monday

ANA, Aegean Airlines, Aer Lingus, +75 more

ANA, Aegean Airlines, +76 more

Tuesday

ANA, Aegean Airlines, Aer Lingus, +70 more

ANA, Aegean Airlines, +71 more

Wednesday

ANA, Aegean Airlines, Aer Lingus, +76 more

ANA, Aegean Airlines, +77 more

Thursday

ANA, Aegean Airlines, Aer Lingus, +71 more

ANA, Aegean Airlines, +72 more

Friday

ANA, Aegean Airlines, Aer Lingus, +76 more

ANA, Aegean Airlines, +77 more

Saturday

ANA, Aegean Airlines, Aer Lingus, +74 more

ANA, Aegean Airlines, +75 more

Sunday

ANA, Aegean Airlines, Aer Lingus, +72 more

ANA, Aegean Airlines, +73 more

See more direct flights

Nonstop returns

Lisbon Humberto Delgado to Idaho

Monday

ANA, Aegean Airlines, Aer Lingus, +75 more

ANA, Aegean Airlines, +76 more

Tuesday

ANA, Aegean Airlines, Aer Lingus, +70 more

ANA, Aegean Airlines, +71 more

Wednesday

ANA, Aegean Airlines, Aer Lingus, +76 more

ANA, Aegean Airlines, +77 more

Thursday

ANA, Aegean Airlines, Aer Lingus, +71 more

ANA, Aegean Airlines, +72 more

Friday

ANA, Aegean Airlines, Aer Lingus, +76 more

ANA, Aegean Airlines, +77 more

Saturday

ANA, Aegean Airlines, Aer Lingus, +74 more

ANA, Aegean Airlines, +75 more

Sunday

ANA, Aegean Airlines, Aer Lingus, +72 more

ANA, Aegean Airlines, +73 more

See more direct flights
See more direct flights

Book cheap flights from Idaho to Lisbon

Recent round-trip flight deals

10/27Sun
2 stopsAmerican Airlines
22h 36mBOI-LIS
11/12Tue
2 stopsAmerican Airlines
19h 22mLIS-BOI
$823
9/11Wed
2 stopsAir Canada
21h 20mBOI-LIS
9/18Wed
2 stopsAir Canada
37h 40mLIS-BOI
$874
8/29Thu
2 stopsAir Canada
21h 20mBOI-LIS
9/10Tue
2 stopsAir Canada
37h 40mLIS-BOI
$924
7/22Mon
2 stopsUnited Airlines
30h 15mBOI-LIS
10/5Sat
2 stopsUnited Airlines
23h 08mLIS-BOI
$957
7/22Mon
2 stopsAir Canada
21h 15mBOI-LIS
10/5Sat
2 stopsAir Canada
39h 34mLIS-BOI
$978
7/22Mon
2 stopsUnited Airlines
22h 25mBOI-LIS
10/5Sat
2 stopsUnited Airlines
21h 10mLIS-BOI
$995
6/1Sat
2 stopsAir France
46h 27mBOI-LIS
6/12Wed
2 stopsAir France
34h 11mLIS-BOI
$1,095
7/22Mon
3 stops
30h 15mBOI-LIS
10/5Sat
2 stops
40h 40mLIS-BOI
$1,123
6/1Sat
2 stopsDelta
20h 24mBOI-LIS
6/8Sat
2 stopsDelta
25h 19mLIS-BOI
$1,231
6/20Thu
2 stopsDelta
20h 45mGEG-LIS
6/26Wed
2 stopsDelta
42h 07mLIS-GEG
$1,429

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Recent one-way flight deals

8/22Thu
2 stops
18h 15mBOI-LIS
$975
8/22Thu
3 stopsAir Canada
17h 35mBOI-LIS
$1,357

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Flights to Lisbon

Destination:

Lisbon (LIS)Portugal

Cabin classes:

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