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Lisbon

$349+ Cheap flights from Boise (BOI) 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
feb. 25 — mar. 41
mié. 2/25
mié. 3/4
1 adult, Economy
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Cheap flight deals from Boise to Lisbon

Cheapest flights from Boise to Lisbon
Explore the most affordable flight options available from Boise to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 26, 2026.

This Delta deal was found by Cheapflights users on 1/26. 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.
mar. 4/143:44 pm
BOI
-
LIS
2 stops19h 06m
Delta
mar. 4/285:00 am
LIS
-
BOI
2 stops25h 00m
Delta
Deal found 1/26$501
This United Airlines deal was found by Cheapflights users on 1/25. 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. 3/235:31 pm
BOI
-
LIS
2 stops23h 59m
United Airlines
jue. 4/27:25 am
LIS
-
BOI
2 stops20h 50m
United Airlines
Deal found 1/25$503
This Finnair deal was found by Cheapflights users on 1/24. 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. 4/286:44 am
BOI
-
LIS
2 stops26h 06m
Finnair
mar. 5/54:35 pm
LIS
-
BOI
2 stops37h 03m
Finnair
Deal found 1/24$505
This Finnair deal was found by Cheapflights users on 1/25. 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.
lun. 2/237:00 am
BOI
-
LIS
2 stops33h 25m
Finnair
dom. 3/84:10 pm
LIS
-
BOI
2 stops36h 13m
Finnair
Deal found 1/25$514
This KAYAK deal was found by Cheapflights users on 1/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/242:40 pm
BOI
-
LIS
2 stops26h 10m
Lufthansa
jue. 4/25:05 am
LIS
-
BOI
2 stops23h 17m
Lufthansa
Deal found 1/25$515
This KLM deal was found by Cheapflights users on 1/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/1010:39 am
BOI
-
LIS
2 stops21h 31m
Multiple Airlines
mar. 2/174:50 pm
LIS
-
BOI
2 stops30h 25m
Multiple Airlines
Deal found 1/23$567
This United Airlines deal was found by Cheapflights users on 1/26. 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.
sáb. 5/22:33 pm
BOI
-
LIS
2 stops36h 57m
United Airlines
jue. 5/1411:25 am
LIS
-
BOI
2 stops42h 20m
United Airlines
Deal found 1/26$577
This Air France deal was found by Cheapflights users on 1/25. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/1310:38 am
BOI
-
LIS
2 stops17h 37m
Air France
jue. 10/295:30 am
LIS
-
BOI
2 stops23h 38m
Air France
Deal found 1/25$588
This Delta deal was found by Cheapflights users on 1/25. 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.
dom. 3/2211:30 pm
BOI
-
LIS
2 stops26h 30m
Delta
jue. 4/25:00 am
LIS
-
BOI
2 stops24h 04m
Delta
Deal found 1/25$590
This Delta deal was found by Cheapflights users on 1/25. 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.
dom. 3/2211:30 pm
BOI
-
LIS
2 stops26h 30m
Delta
mar. 3/315:00 am
LIS
-
BOI
2 stops24h 04m
Delta
Deal found 1/25$592
This United Airlines deal was found by Cheapflights users on 1/25. 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.
sáb. 5/25:29 pm
BOI
-
LIS
2 stops34h 01m
United Airlines
vie. 5/156:15 am
LIS
-
BOI
2 stops34h 39m
United Airlines
Deal found 1/25$593
This United Airlines deal was found by Cheapflights users on 1/25. 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.
mié. 3/117:47 am
BOI
-
LIS
2 stops25h 03m
United Airlines
mié. 3/185:00 am
LIS
-
BOI
2 stops24h 57m
United Airlines
Deal found 1/25$602

Find flight deals from Boise to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$501
(Delta)

One-way from

$349
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$945
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Lisbon Humberto Delgado flights.
Search Deals
From Boise Air Term. Gowen Fld to Lisbon Humberto Delgado
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($311 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($143 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise 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 enero 26, 2026.
Use the filters below to find and compare flights from Boise to Lisbon that are best for you.

Fly from

Boise

Fly to

Lisbon

Route

Depart

Return

Price

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mar. 4/14

10:36 am-5:50 pm

2 stops24h 14m

Lisbon Humberto Delgado

mar. 4/28

5:00 am-10:59 pm

2 stops24h 59m

$501

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

lun. 3/23

5:31 pm-11:30 pm

2 stops23h 59m

Lisbon Humberto Delgado

jue. 4/2

7:25 am-9:15 pm

2 stops20h 50m

$503

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

lun. 2/23

7:00 am-11:25 pm

2 stops33h 25m

Lisbon Humberto Delgado

dom. 3/8

4:10 pm-10:23 pm

2 stops36h 13m

$514

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mar. 2/10

10:39 am-3:10 pm

2 stops21h 31m

Lisbon Humberto Delgado

mar. 2/17

4:50 pm-4:15 pm

2 stops30h 25m

$567

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

lun. 3/23

11:30 pm-8:00 am

2 stops26h 30m

Lisbon Humberto Delgado

mié. 4/1

5:00 am-10:04 pm

2 stops24h 04m

$590

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

dom. 3/22

11:30 pm-8:00 am

2 stops26h 30m

Lisbon Humberto Delgado

mar. 3/31

5:00 am-10:04 pm

2 stops24h 04m

$592

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mar. 3/24

2:40 pm-10:50 pm

2 stops26h 10m

Lisbon Humberto Delgado

mié. 4/1

6:15 am-9:22 pm

2 stops22h 07m

$604

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mié. 4/22

6:44 am-3:50 pm

2 stops26h 06m

Lisbon Humberto Delgado

mié. 5/13

7:20 am-10:38 pm

2 stops22h 18m

$616

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

sáb. 3/14

10:49 am-3:00 pm

2 stops22h 11m

$349

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mié. 2/25

2:40 pm-10:15 am

2 stops36h 35m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 15 results
1
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Compare providers for flights from Boise to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Lisbon in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Lisbon flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Boise 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 Boise to Lisbon

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

Currently, February is the cheapest month in which you can book a flight from Boise to Lisbon (average of $484). Flying from Boise to Lisbon in June is currently the most expensive (average of $1,028). 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.

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

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 enero 26, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Boise to Lisbon by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,112 reviews

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,112 reviews
Delta
7.9
Good
8,112 reviews

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,199 reviews
Delta
7.9
Good
8,112 reviews

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,189 reviews
Delta
7.9
Good
8,112 reviews

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,656 reviews
Delta
7.9
Good
8,112 reviews

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • How long is the flight from Boise to Lisbon?

    For as low as $503, Delta can have you in Lisbon from Boise in 23h 59m. The distance from Boise to Lisbon is about 5150 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Boise to Lisbon round-trip?

    Cheapflights users have booked flights from Boise to Lisbon round-trip from $601. Other airlines that can offer you cheap pricing are Air Canada, from $602, and Delta, from $654. You may be able to fly from Boise to Lisbon for 45% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise 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 Boise to Lisbon?

    Currently, February is the cheapest month in which you can book a flight from Boise to Lisbon (average of $484). Flying from Boise to Lisbon in June is currently the most expensive (average of $1,028). 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
Fátima
Oeiras
Ericeira
Beja
Costa da Caparica
Torres Vedras
Nazaré
Sesimbra
Colares

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Alternative routes for Boise to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
Spokane to Lisbon flights
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Spokane to Faro flights

Top 4 airlines flying from Boise to Lisbon

Discover the top 4 airlines that operate flights from Boise 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 enero 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$601Average$944FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$602Average$1,135FlexibilityNo cancel feeOn-time67%
DeltaCheapest$654Average$1,209FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$659Average$1,248FlexibilityNo cancel feeOn-time71%

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