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Lisbon

$328+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIS
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 septiembre 11, 2025.

Round-trip from

$505
(FlightHub)

One-way from

$328
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,159
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. 17% potential increase in price ($214 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/63:54 pmBOI - LIS
2 stops34h 01mScandinavian Airlines
mié. 12/107:05 amLIS - BOI
2 stops22h 31mScandinavian Airlines
Deal found 9/10$505
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/115:10 amGEG - LIS
2 stops20h 10mUnited Airlines
mar. 11/185:00 amLIS - GEG
2 stops23h 45mUnited Airlines
Deal found 9/11$569
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/198:20 amBOI - LIS
2 stops18h 00mUnited Airlines
lun. 11/311:20 amLIS - BOI
2 stops35h 43mUnited Airlines
Deal found 9/11$605
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/209:45 amBOI - LIS
2 stops16h 35mUnited Airlines
jue. 10/305:00 amLIS - BOI
2 stops34h 58mUnited Airlines
Deal found 9/10$617
This Finnair deal was found by Cheapflights users on 9/10. 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.
mar. 12/166:44 amBOI - LIS
2 stops19h 31mMultiple Airlines
mié. 1/144:10 pmLIS - BOI
2 stops36h 08mMultiple Airlines
Deal found 9/10$619
This Finnair deal was found by Cheapflights users on 9/11. 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.
dom. 10/197:00 amBOI - LIS
2 stops33h 05mFinnair
lun. 11/34:10 pmLIS - BOI
2 stops37h 22mFinnair
Deal found 9/11$621
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/184:00 pmBOI - LIS
2 stops34h 00mScandinavian Airlines
mié. 10/294:55 pmLIS - BOI
2 stops35h 57mScandinavian Airlines
Deal found 9/10$625
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/115:10 amGEG - LIS
2 stops19h 00mUnited Airlines
lun. 11/2410:15 amLIS - GEG
2 stops18h 30mUnited Airlines
Deal found 9/11$630
This United deal was found by Cheapflights users on 9/10. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/244:18 pmJAC - LIS
2 stops59h 02mMultiple Airlines
lun. 11/32:10 pmLIS - JAC
2 stops37h 27mMultiple Airlines
Deal found 9/10$631
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/142:39 pmBOI - LIS
2 stops24h 11mUnited Airlines
jue. 10/305:00 amLIS - BOI
2 stops34h 58mUnited Airlines
Deal found 9/10$640
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/142:39 pmBOI - LIS
2 stops24h 11mUnited Airlines
mié. 10/2911:55 amLIS - BOI
3 stops31h 49mUnited Airlines
Deal found 9/10$645
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/166:20 amBOI - LIS
2 stops18h 50mUnited Airlines
mié. 1/1411:20 amLIS - BOI
2 stops41h 03mUnited Airlines
Deal found 9/10$656

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 septiembre 11, 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

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

mar. 3/3

7:00 am-8:10 am

2 stops17h 10m

Lisbon Humberto Delgado

mar. 3/24

5:00 am-9:09 pm

2 stops23h 09m

$568

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

mar. 11/11

5:10 am-9:20 am

2 stops20h 10m

Lisbon Humberto Delgado

mar. 11/18

5:00 am-8:45 pm

2 stops23h 45m

$569

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

mar. 3/3

7:00 am-8:10 am

2 stops17h 10m

Lisbon Humberto Delgado

mar. 3/24

6:10 am-9:09 pm

3 stops21h 59m

$593

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

dom. 10/19

8:20 am-9:20 am

2 stops18h 00m

Lisbon Humberto Delgado

lun. 11/3

11:20 am-4:03 pm

2 stops35h 43m

$605

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

dom. 10/19

7:00 am-11:05 pm

2 stops33h 05m

Lisbon Humberto Delgado

lun. 11/3

4:10 pm-10:32 pm

2 stops37h 22m

$621

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

mar. 11/11

5:10 am-8:10 am

2 stops19h 00m

Lisbon Humberto Delgado

lun. 11/24

10:15 am-8:45 pm

2 stops18h 30m

$630

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

vie. 10/24

4:18 pm-10:20 am

2 stops59h 02m

Lisbon Humberto Delgado

lun. 11/3

2:10 pm-8:37 pm

2 stops37h 27m

$631

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

vie. 1/9

4:10 pm-9:20 am

2 stops57h 10m

Lisbon Humberto Delgado

sáb. 1/24

11:20 am-10:44 am

2 stops31h 24m

$637

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mar. 10/14

2:39 pm-9:50 pm

2 stops24h 11m

Lisbon Humberto Delgado

mié. 10/29

11:55 am-1:44 pm

3 stops31h 49m

$645

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

vie. 1/16

7:00 am-8:10 am

2 stops18h 10m

Lisbon Humberto Delgado

mar. 1/20

10:15 am-8:42 pm

2 stops17h 27m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 36 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, January is the cheapest month in which you can book a flight from Idaho to Lisbon (average of $612). Flying from Idaho to Lisbon in June is currently the most expensive (average of $1,127). 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 septiembre 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Lisbon as you normally would.

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 $569, United Airlines can have you in Lisbon from Idaho in 20h 10m. Airlines will cover a distance of 5022 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Idaho to Lisbon one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $330. Users have also found prices from $348 and $352 on Delta and Air Canada, respectively.

  • 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, January is the cheapest month in which you can book a flight from Idaho to Lisbon (average of $612). Flying from Idaho to Lisbon in June is currently the most expensive (average of $1,127). 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
Beja
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$601Average$951FlexibilityNo 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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