Find flights
When to book
FAQs & Tips
Direct Flights
Deals

LIS

$505 Find cheap flights from Idaho to Lisbon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Lisbon departing on 6/29. 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 6/15
Sat 6/22

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

In the last 7 days travelers have searched 42,211,976 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

September

Cheapest flight

$505
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 1% increase in price.
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
23h 55mBOI-LIS
11/12Tue
2 stopsAmerican Airlines
19h 22mLIS-BOI
$944
10/27Sun
2 stopsUnited Airlines
19h 25mBOI-LIS
11/12Tue
2 stopsUnited Airlines
18h 07mLIS-BOI
$945
6/25Tue
2 stopsDelta
21h 42mBOI-LIS
7/17Wed
2 stopsDelta
18h 25mLIS-BOI
$1,023
6/24Mon
2 stopsDelta
22h 48mBOI-LIS
7/17Wed
2 stopsDelta
18h 30mLIS-BOI
$1,040
7/8Mon
2 stopsAir Canada
32h 40mGEG-LIS
7/19Fri
2 stopsAir Canada
38h 57mLIS-GEG
$1,062
8/18Sun
2 stopsFinnair
33h 05mBOI-LIS
8/29Thu
2 stopsFinnair
21h 56mLIS-BOI
$1,114
8/19Mon
2 stopsAir Canada
19h 20mBOI-LIS
8/30Fri
2 stopsAir Canada
32h 59mLIS-BOI
$1,115
8/22Thu
2 stops
18h 15mBOI-LIS
9/3Tue
3 stops
29h 28mLIS-BOI
$1,124
8/18Sun
3 stops
17h 50mBOI-LIS
9/3Tue
2 stops
28h 03mLIS-BOI
$1,127
8/18Sun
2 stopsFinnair
33h 05mBOI-LIS
9/1Sun
2 stopsFinnair
35h 56mLIS-BOI
$1,346

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/29Sat
3 stops
48h 32mBOI-LIS
$505
8/30Fri
3 stops
23h 55mBOI-LIS
$687
8/22Thu
2 stops
25h 56mBOI-LIS
$794
6/29Sat
2 stops
27h 05mBOI-LIS
$806
8/30Fri
2 stopsLufthansa
16h 55mBOI-LIS
$970
8/22Thu
3 stopsAir Canada
17h 35mBOI-LIS
$981

Search by stops

Search by airline

Search by price

Flights to Lisbon

Destination:

Lisbon (LIS)Portugal

Cabin classes:

Browse destinations: