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Lisbon

$331+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIS
Jul 10 — Jul 171
Fri 7/10
Fri 7/17
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 June 10, 2026.

This United Airlines deal was found by Cheapflights users on 6/7. 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.
Mon 12/77:00 am
BOI
-
LIS
2 stops20h 15m
United Airlines
Thu 12/101:00 pm
LIS
-
BOI
2 stops39h 16m
United Airlines
Deal found 6/7$727
This Expedia deal was found by Cheapflights users on 6/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:15 pm
BOI
-
LIS
2 stops18h 25m
KLM
Sun 11/153:35 pm
LIS
-
BOI
2 stops32h 14m
KLM
Deal found 6/8$771
This United Airlines deal was found by Cheapflights users on 6/6. 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 11/15:22 pm
BOI
-
LIS
2 stops31h 48m
United Airlines
Sat 11/141:00 pm
LIS
-
BOI
2 stops41h 59m
United Airlines
Deal found 6/6$777
This United Airlines deal was found by Cheapflights users on 6/8. 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 12/277:00 am
BOI
-
LIS
2 stops21h 00m
United Airlines
Sat 1/91:00 pm
LIS
-
BOI
2 stops39h 16m
United Airlines
Deal found 6/8$847
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 10/1510:38 am
BOI
-
LIS
2 stops21h 17m
Delta
Sat 10/245:00 am
LIS
-
BOI
2 stops22h 17m
Delta
Deal found 6/8$897
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Thu 10/85:00 am
BOI
-
LIS
2 stops21h 20m
United Airlines
Thu 10/155:05 am
LIS
-
BOI
2 stops19h 38m
United Airlines
Deal found 6/7$902
This Delta deal was found by Cheapflights users on 6/5. 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 7/2712:20 pm
BOI
-
LIS
2 stops22h 30m
Delta
Tue 8/115:00 am
LIS
-
BOI
2 stops20h 48m
Delta
Deal found 6/5$939
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:05 pm
BOI
-
LIS
2 stops57h 00m
Air Canada
Fri 9/2511:25 am
LIS
-
BOI
2 stops29h 08m
Air Canada
Deal found 6/8$945
This Finnair deal was found by Cheapflights users on 6/9. 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 8/253:16 pm
BOI
-
LIS
2 stops19h 39m
Multiple Airlines
Mon 9/74:35 pm
LIS
-
BOI
2 stops36h 36m
Multiple Airlines
Deal found 6/9$946
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 9/85:00 am
BOI
-
LIS
2 stops21h 20m
United Airlines
Sat 9/1911:25 am
LIS
-
BOI
2 stops41h 12m
United Airlines
Deal found 6/7$966
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 9/115:40 pm
BOI
-
LIS
2 stops31h 40m
United Airlines
Fri 9/2511:25 am
LIS
-
BOI
2 stops42h 33m
United Airlines
Deal found 6/9$977
This Air France deal was found by Cheapflights users on 6/9. 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.
Tue 9/152:50 pm
BOI
-
LIS
2 stops17h 05m
Air France
Sat 9/265:35 am
LIS
-
BOI
2 stops16h 37m
Air France
Deal found 6/9$983

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 June 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$727
(United Airlines)

One-way from

$331
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$916
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. 38% potential increase in price ($632 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 19% potential price decrease ($167 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 10, 2026.
Use the filters below to find and compare flights from Boise to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sun 11/8

5:00 am-10:15 am

2 stops22h 15m

Lisbon Humberto Delgado

Tue 11/10

1:00 pm-4:49 pm

2 stops34h 49m

$727

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 12/7

6:55 pm-8:10 am

2 stops30h 15m

Lisbon Humberto Delgado

Thu 12/10

1:00 pm-5:55 pm

2 stops35h 55m

$727

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sun 11/1

5:22 pm-8:10 am

2 stops31h 48m

Lisbon Humberto Delgado

Sat 11/14

1:00 pm-11:59 pm

2 stops41h 59m

$777

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Thu 10/15

12:42 pm-5:50 pm

2 stops22h 08m

Lisbon Humberto Delgado

Sat 10/24

5:00 am-8:17 pm

2 stops22h 17m

$897
Quickest round-trip

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Thu 10/8

5:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Thu 10/15

5:05 am-5:43 pm

2 stops19h 38m

$902

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 7/27

12:20 pm-5:50 pm

2 stops22h 30m

Lisbon Humberto Delgado

Tue 8/11

5:00 am-6:48 pm

2 stops20h 48m

$939

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 9/8

5:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Sat 9/19

11:25 am-9:37 pm

2 stops41h 12m

$966
Cheapest one-way

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sun 11/8

4:09 pm-5:45 pm

2 stops18h 36m

$331

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Fri 8/28

5:44 pm-11:05 am

2 stops58h 21m

$483

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Thu 7/9

3:10 pm-6:10 pm

2 stops20h 00m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 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

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 June 10, 2026.
Get a feel of what it's like to fly with Delta and United 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
8,396 reviews

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,396 reviews
Delta
7.9
Good
8,396 reviews

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,804 reviews
Delta
7.9
Good
8,396 reviews

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 $727, United Airlines can have you in Lisbon from Boise in 22h 15m. The distance from Boise to Lisbon is about 5150 mi.

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

    Cheapflights users have booked flights from Boise to Lisbon round-trip from $549. Another airline that can offer you cheap pricing is United Airlines. You may be able to fly from Boise to Lisbon for 46% 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.

See more FAQs

Traveling to a place near Lisbon?

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

Browse thousands of different options on Cheapflights for your next trip

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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

Top 2 airlines flying from Boise to Lisbon

Discover the top 2 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 June 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$549Average$771FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$601Average$900FlexibilityNo cancel feeOn-time69%

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