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Lisbon

$416+ Cheap flights from Idaho to Lisbon (LIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIS
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Idaho to Lisbon

Keep the following information in mind while searching for Idaho to Lisbon flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$499
(Finnair)

One-way from

$416
(Iberia)

Popular in

June

Cheapest in

November

Average price

$668
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Lisbon Humberto Delgado flights.
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From Idaho to Lisbon Humberto Delgado
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One-way flight from Idaho to Lisbon Humberto Delgado
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Highest demand for flights based on searches. 19% potential increase in price ($247 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Idaho to Lisbon

Cheapest flights from Idaho to Lisbon
Explore the most affordable flight options available from Idaho to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:20 amBOI - LIS
2 stops23h 00mDelta
Wed 12/105:00 amLIS - BOI
2 stops18h 02mDelta
Deal found 11/2$500
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amGEG - LIS
2 stops18h 00mDelta
Sun 12/711:25 amLIS - GEG
2 stops40h 45mDelta
Deal found 11/2$501
This Finnair deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:44 amBOI - LIS
2 stops19h 21mMultiple Airlines
Tue 12/1611:05 amLIS - BOI
2 stops18h 20mMultiple Airlines
Deal found 11/2$510
This American Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:25 amGEG - LIS
2 stops18h 30mMultiple Airlines
Wed 12/1711:05 amLIS - GEG
2 stops21h 19mMultiple Airlines
Deal found 11/1$597
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:00 amJAC - LIS
2 stops25h 10mDelta
Wed 12/311:25 amLIS - JAC
2 stops41h 04mDelta
Deal found 11/2$599
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:50 pmJAC - LIS
2 stops38h 20mDelta
Wed 12/311:25 amLIS - JAC
2 stops41h 04mDelta
Deal found 11/2$604
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:57 pmJAC - LIS
2 stops38h 38mDelta
Wed 12/311:25 amLIS - JAC
2 stops41h 04mDelta
Deal found 11/2$605
This Finnair deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:44 amBOI - LIS
2 stops19h 21mMultiple Airlines
Wed 1/144:10 pmLIS - BOI
2 stops34h 15mMultiple Airlines
Deal found 11/2$629
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/225:50 pmJAC - LIS
2 stops57h 45mDelta
Wed 12/311:25 amLIS - JAC
2 stops41h 04mDelta
Deal found 11/2$711
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:50 pmJAC - LIS
2 stops56h 05mDelta
Wed 12/311:25 amLIS - JAC
2 stops41h 04mDelta
Deal found 11/2$752
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:00 amJAC - LIS
2 stops25h 10mDelta
Tue 12/211:25 amLIS - JAC
2 stops41h 04mDelta
Deal found 11/2$754
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:50 pmJAC - LIS
2 stops38h 20mDelta
Tue 12/211:25 amLIS - JAC
2 stops41h 04mDelta
Deal found 11/2$759

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Idaho to Lisbon that are best for you.

Fly from

Idaho

Fly to

Lisbon

Route

Depart

Return

Price

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sat 1/24

7:20 am-9:05 am

2 stops18h 45m

Lisbon Humberto Delgado

Mon 2/2

4:10 pm-7:25 pm

2 stops34h 15m

$499

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

Fri 1/16

7:20 am-5:30 pm

2 stops27h 10m

Lisbon Humberto Delgado

Tue 1/20

11:25 am-12:00 pm

2 stops55h 35m

$500

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 12/2

7:30 am-11:20 am

2 stops20h 50m

Lisbon Humberto Delgado

Wed 12/10

5:00 am-6:51 pm

2 stops20h 51m

$500

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Tue 1/27

11:22 am-3:10 pm

2 stops19h 48m

Lisbon Humberto Delgado

Wed 2/4

5:00 am-7:59 pm

2 stops22h 59m

$500

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Tue 12/2

6:00 am-8:00 am

2 stops18h 00m

Lisbon Humberto Delgado

Mon 12/8

3:30 pm-2:55 pm

2 stops31h 25m

$501

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Wed 12/3

6:00 am-8:00 am

2 stops18h 00m

Lisbon Humberto Delgado

Sun 12/7

11:25 am-8:56 pm

2 stops41h 31m

$501

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 12/8

6:44 am-9:05 am

2 stops19h 21m

Lisbon Humberto Delgado

Tue 12/16

11:05 am-10:25 pm

2 stops18h 20m

$510

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 12/8

9:00 am-9:00 am

2 stops17h 00m

Lisbon Humberto Delgado

Tue 12/16

10:00 am-12:42 am

2 stops21h 42m

$510

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Wed 12/3

6:25 am-8:55 am

2 stops18h 30m

Lisbon Humberto Delgado

Wed 12/17

11:05 am-12:24 am

2 stops21h 19m

$597

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

Tue 11/25

7:00 am-3:10 pm

2 stops25h 10m

Lisbon Humberto Delgado

Wed 12/3

11:25 am-9:29 pm

2 stops41h 04m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 32 results
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Best time to book a flight from Idaho to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Lisbon

What is the cheapest month to book a flight from Idaho to Lisbon?

Currently, December is the cheapest month in which you can book a flight from Idaho to Lisbon (average of $567). Flying from Idaho to Lisbon in June is currently the most expensive (average of $1,104). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ID to LIS?

Find hourly flight availability from Idaho to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 47% on flights from Idaho to Lisbon by exploring options for tickets in the afternoon.

How much does it cost to fly round-trip from Idaho to Lisbon?

Related info for your journey

Find useful and relevant information for your journey from Idaho to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Lisbon from Idaho?

    Lisbon Humberto Delgado (LIS), located 4.2 mi from the city center, is the airport you fly into when you book flights from Idaho to Lisbon.

  • How long is the flight from Idaho to Lisbon?

    For as low as $500, Delta can have you in Lisbon from Idaho in 27h 10m. Airlines will cover a distance of 4932 mi.

  • What are the most popular routes from Idaho to Lisbon?

    The most popular route from Idaho to Lisbon is Boise Air Term. Gowen Fld - Lisbon Humberto Delgado. You may also consider Spokane - Lisbon Humberto Delgado or Jackson Hole - Lisbon Humberto Delgado.

  • Can I find deals for flights from Idaho to Lisbon that include hotel bookings?

    Yes. In addition to deals on Idaho to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Lisbon.

  • Can I find deals for business class flights from Idaho to Lisbon?

    Yes. Cheapflights offers flight deals from Idaho to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Lisbon?

    Currently, December is the cheapest month in which you can book a flight from Idaho to Lisbon (average of $567). Flying from Idaho to Lisbon in June is currently the most expensive (average of $1,104). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Oeiras
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
Beja
Sesimbra
Colares

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Alternative routes for Idaho to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Idaho to Lisbon

Discover the top 4 airlines that operate flights from Idaho to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$601Average$953FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$602Average$1,181FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$621Average$1,248FlexibilityNo cancel feeOn-time71%
DeltaCheapest$654Average$1,227FlexibilityNo cancel feeOn-timeN/A

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