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Lisbon

$369+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIS
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
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 June 18, 2025.

Round-trip from

$634
(Gotogate)

One-way from

$369
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,453
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. 15% potential increase in price ($196 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 18, 2025.

This Gotogate deal was found by Cheapflights users on 6/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:35 amBOI - LIS
2 stops39h 45mAir Canada
Sun 12/711:00 amLIS - BOI
2 stops53h 59mAir Canada
Deal found 6/17$634
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Sun 10/266:15 amBOI - LIS
2 stops22h 00mUnited Airlines
Mon 11/105:00 amLIS - BOI
2 stops24h 45mUnited Airlines
Deal found 6/16$652
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Sat 10/185:56 pmJAC - LIS
2 stops34h 09mUnited Airlines
Mon 11/35:00 amLIS - JAC
2 stops22h 37mUnited Airlines
Deal found 6/16$660
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 9/247:23 amGEG - LIS
2 stops17h 57mUnited Airlines
Tue 10/710:25 amLIS - GEG
2 stops20h 50mUnited Airlines
Deal found 6/16$769
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:25 amGEG - LIS
1 stop21h 20mMultiple Airlines
Fri 9/1910:10 pmLIS - GEG
2 stops47h 46mMultiple Airlines
Deal found 6/16$888
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:21 amGEG - LIS
2 stops36h 59mAir Canada
Sat 9/1312:55 pmLIS - GEG
2 stops31h 41mAir Canada
Deal found 6/16$1,022
This Iberia deal was found by Cheapflights users on 6/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:00 amGEG - LIS
2 stops41h 45mIberia
Tue 9/308:45 pmLIS - GEG
2 stops47h 01mIberia
Deal found 6/17$1,059
This Air Canada deal was found by Cheapflights users on 6/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/279:52 amBOI - LIS
2 stops18h 13mMultiple Airlines
Fri 9/1211:25 amLIS - BOI
3 stops29h 27mMultiple Airlines
Deal found 6/16$1,108
This AranGrant deal was found by Cheapflights users on 6/16. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/810:42 amBOI - LIS
2 stops19h 58mLufthansa
Thu 7/246:15 amLIS - BOI
2 stops23h 37mLufthansa
Deal found 6/16$1,970

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 June 18, 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

Tue 12/2

10:35 am-9:20 am

2 stops39h 45m

Lisbon Humberto Delgado

Sun 12/7

11:00 am-9:59 am

2 stops53h 59m

$634

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sun 10/26

6:15 am-10:15 am

2 stops22h 00m

Lisbon Humberto Delgado

Mon 11/10

5:00 am-10:45 pm

2 stops24h 45m

$652

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

Sat 10/18

5:56 pm-11:05 am

2 stops34h 09m

Lisbon Humberto Delgado

Mon 11/3

5:00 am-8:37 pm

2 stops22h 37m

$660

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Wed 9/24

7:23 am-9:20 am

2 stops17h 57m

Lisbon Humberto Delgado

Tue 10/7

10:25 am-11:15 pm

2 stops20h 50m

$769

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Fri 9/12

6:25 am-11:45 am

1 stop21h 20m

Lisbon Humberto Delgado

Fri 9/19

10:10 pm-1:56 pm

2 stops47h 46m

$888

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Thu 9/4

11:21 am-8:20 am

2 stops36h 59m

Lisbon Humberto Delgado

Sat 9/13

12:55 pm-12:36 pm

2 stops31h 41m

$1,022

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Mon 9/1

6:00 am-7:45 am

2 stops41h 45m

Lisbon Humberto Delgado

Tue 9/30

8:45 pm-11:46 am

2 stops47h 01m

$1,059

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 8/27

9:52 am-11:05 am

2 stops18h 13m

Lisbon Humberto Delgado

Fri 9/12

11:25 am-9:52 am

3 stops29h 27m

$1,108

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 7/8

10:42 am-1:40 pm

2 stops19h 58m

Lisbon Humberto Delgado

Thu 7/24

6:15 am-10:52 pm

2 stops23h 37m

$1,970

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Fri 8/15

9:55 am-6:25 pm

2 stops24h 30m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 15 results
1
2

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 $1,135). 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 June 18, 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.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated June 18, 2025.
Peruse reviews from past customers who have flown with United Airlines, Air Canada and Iberia from Idaho to Lisbon to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,809 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.0

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,809 reviews
United Airlines
7.4
Good
8,809 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.0

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,572 reviews
United Airlines
7.4
Good
8,809 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.0

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
2,778 reviews
United Airlines
7.4
Good
8,809 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.0

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,158 reviews
United Airlines
7.4
Good
8,809 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.0

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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 $1,135). 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 Idaho?

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

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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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$601Average$1,000FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$613Average$1,094FlexibilityNo cancel feeOn-time71%
DeltaCheapest$654Average$1,203FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$701Average$1,181FlexibilityNo cancel feeOn-time67%

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