HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lisbon

$689+ Cheap flights from Boise (BOI) to Lisbon (LIS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIS
mar. 8 — mar. 151
sáb. 3/8
sáb. 3/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise to Lisbon with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Boise Air Term. Gowen Fld to Lisbon Humberto Delgado are usually found in March or February, booked 15 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap 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 marzo 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$700
(American Airlines)

Popular in

June

Cheapest in

March

Average price

$788
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
Highest demand for flights based on searches. 18% potential increase in price ($251 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find 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 marzo 3, 2025.

This United deal was found by Cheapflights users on 3/3. 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.
dom. 11/232:11 pmBOI - LIS
2 stops37h 04mUnited Airlines
sáb. 12/1311:00 amLIS - BOI
2 stops53h 43mUnited Airlines
Deal found 3/3$689
This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/241:36 pmBOI - LIS
2 stops19h 19mAmerican Airlines
mié. 4/911:00 amLIS - BOI
2 stops19h 34mAmerican Airlines
Deal found 3/2$700
This Finnair deal was found by Cheapflights users on 3/3. 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. 4/217:05 amBOI - LIS
2 stops33h 05mFinnair
mié. 4/307:20 amLIS - BOI
2 stops21h 51mFinnair
Deal found 3/3$826
This Justfly.com deal was found by Cheapflights users on 3/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/911:00 amBOI - LIS
2 stops39h 20mAir Canada
mié. 4/1611:25 amLIS - BOI
2 stops40h 57mAir Canada
Deal found 3/3$853
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/2410:11 amBOI - LIS
1 stop19h 24mMultiple Airlines
mié. 4/99:15 pmLIS - BOI
2 stops46h 08mMultiple Airlines
Deal found 3/2$881
This Lufthansa deal was found by Cheapflights users on 3/2. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/910:36 amBOI - LIS
2 stops21h 49mLufthansa
mié. 4/166:45 amLIS - BOI
2 stops21h 37mLufthansa
Deal found 3/2$936
This Scandinavian Airlines deal was found by Cheapflights users on 3/2. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/411:00 amBOI - LIS
3 stops28h 05mScandinavian Airlines
lun. 8/187:15 amLIS - BOI
2 stops19h 05mScandinavian Airlines
Deal found 3/2$1,168

Find flights from Boise to Lisbon within your budget

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 marzo 3, 2025.

Fly from

Boise

Fly to

Lisbon

Route

Depart

Return

Price

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

lun. 3/24

1:36 pm-2:55 pm

2 stops19h 19m

Lisbon Humberto Delgado

mié. 4/9

11:00 am-11:34 pm

2 stops19h 34m

$700

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

jue. 3/27

6:56 pm-11:30 pm

2 stops22h 34m

Lisbon Humberto Delgado

jue. 4/10

11:25 am-9:22 pm

2 stops40h 57m

$772

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

lun. 4/21

7:05 am-11:10 pm

2 stops33h 05m

Lisbon Humberto Delgado

mié. 4/30

7:20 am-10:11 pm

2 stops21h 51m

$826

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mié. 4/9

11:00 am-9:20 am

2 stops39h 20m

Lisbon Humberto Delgado

mié. 4/16

11:25 am-9:22 pm

2 stops40h 57m

$853

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

lun. 3/24

10:11 am-11:35 am

1 stop19h 24m

Lisbon Humberto Delgado

mié. 4/9

9:15 pm-12:23 pm

2 stops46h 08m

$881

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mié. 4/9

10:36 am-3:25 pm

2 stops21h 49m

Lisbon Humberto Delgado

mié. 4/16

6:45 am-9:22 pm

2 stops21h 37m

$936

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

lun. 8/4

11:00 am-10:05 pm

3 stops28h 05m

Lisbon Humberto Delgado

lun. 8/18

7:15 am-7:20 pm

2 stops19h 05m

$1,168

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

vie. 3/14

6:00 am-8:40 am

2 stops44h 40m

$1,052

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*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.

Travel insights for flights from Boise to Lisbon

Get recent, data-driven insights about flights from Boise to Lisbon including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Boise to Lisbon?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Lisbon. Price data was last updated on February 28, 2025.

The price you pay for your flight from Boise to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 14 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Boise to Lisbon (average of $612). Flying from Boise to Lisbon in June is currently the most expensive (average of $1,230). 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 BOI to LIS?

Find hourly flight availability from Boise 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 marzo 3, 2025.

It’s optimal to fly from Boise to Lisbon in the afternoon. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the evening.

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 marzo 3, 2025.
Finnair
7.6
Good
1,271 reviews

Comfort

7.4

Overall

7.6

Boarding

7.7

Food

6.7

Entertainment

6.9

Crew

8.1

Reviews

1 / 20

2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

Finnair
7.6
Good
1,271 reviews
Finnair
7.6
Good
1,271 reviews

Comfort

7.4

Overall

7.6

Boarding

7.7

Food

6.7

Entertainment

6.9

Crew

8.1

Reviews

1 / 20

2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

United Airlines
7.4
Good
8,679 reviews
Finnair
7.6
Good
1,271 reviews

Comfort

7.4

Overall

7.6

Boarding

7.7

Food

6.7

Entertainment

6.9

Crew

8.1

Reviews

1 / 20

2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

Scandinavian Airlines
7.3
Good
1,314 reviews
Finnair
7.6
Good
1,271 reviews

Comfort

7.4

Overall

7.6

Boarding

7.7

Food

6.7

Entertainment

6.9

Crew

8.1

Reviews

1 / 20

2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,271 reviews

Comfort

7.4

Overall

7.6

Boarding

7.7

Food

6.7

Entertainment

6.9

Crew

8.1

Reviews

1 / 20

2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

Air Canada
7.0
Good
8,829 reviews
Finnair
7.6
Good
1,271 reviews

Comfort

7.4

Overall

7.6

Boarding

7.7

Food

6.7

Entertainment

6.9

Crew

8.1

Reviews

1 / 20

2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

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.

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

    Cheapflights users have booked flights from Boise to Lisbon round-trip from $700. Other airlines that can offer you cheap pricing are United Airlines, from $772, and Finnair, from $826. You may be able to fly from Boise to Lisbon for 35% 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, January is the cheapest month in which you can book a flight from Boise to Lisbon (average of $612). Flying from Boise to Lisbon in June is currently the most expensive (average of $1,230). 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 Boise?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Jackson to Lisbon flights
Spokane to Faro flights

Top 6 airlines flying from Boise to Lisbon

Discover the top 6 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 marzo 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$621Average$1,089FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$654Average$1,042FlexibilityNo cancel feeOn-time77%
DeltaCheapest$654Average$1,194FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$701Average$1,191FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$726Average$1,180FlexibilityNo cancel feeOn-time69%
KLMCheapest$814Average$1,038FlexibilityNo cancel feeOn-time75%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.