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Cheap flights from Boise to Lisbon from $296

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Lisbon departing on 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
6:35 am - 9:20 amBOI-LIS
19h 45m2 stops
Air Canada Logo
11:00 am - 11:44 pmLIS-BOI
43h 44m2 stops
$538Air Canada
Find Deal
Tue, Dec 2 - Wed, Dec 10
United Airlines Logo
6:35 am - 9:20 amBOI-LIS
19h 45m2 stops
United Airlines Logo
11:00 am - 11:44 pmLIS-BOI
43h 44m2 stops
$539United Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10
United Airlines Logo
8:15 am - 8:10 amBOI-LIS
16h 55m2 stops
United Airlines Logo
5:00 am - 7:43 pmLIS-BOI
21h 43m2 stops
$546United Airlines
Find Deal
Mon, Dec 8 - Tue, Dec 16
United Airlines Logo
8:25 am - 10:15 amBOI-LIS
18h 50m2 stops
United Airlines Logo
11:20 am - 11:39 amLIS-BOI
31h 19m2 stops
$553United Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 18
Delta Logo
9:00 am - 9:00 amBOI-LIS
17h 00m2 stops
Delta Logo
10:00 am - 12:35 amLIS-BOI
21h 35m2 stops
$576Delta
Find Deal
Tue, Nov 4 - Tue, Nov 18
Scandinavian Airlines Logo
3:54 pm - 8:55 amBOI-LIS
34h 01m2 stops
Scandinavian Airlines Logo
7:05 am - 10:05 pmLIS-BOI
22h 00m2 stops
$599Scandinavian Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
Delta Logo
11:42 am - 5:30 pmBOI-LIS
22h 48m2 stops
Delta Logo
5:00 am - 10:22 pmLIS-BOI
24h 22m2 stops
$615Delta
Find Deal
Fri, Nov 14 - Fri, Nov 21
Scandinavian Airlines Logo
3:54 pm - 8:55 amBOI-LIS
34h 01m2 stops
Scandinavian Airlines Logo
7:05 am - 10:05 pmLIS-BOI
22h 00m2 stops
$689Scandinavian Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
Air Canada Logo
8:17 am - 9:20 amBOI-LIS
18h 03m3 stops
Air Canada Logo
11:20 am - 11:39 amLIS-BOI
31h 19m3 stops
$1,244Air Canada
Find Deal
Tue, Nov 4 - Tue, Nov 18
British Airways Logo
6:00 pm - 6:05 pmBOI-LIS
17h 05m2 stops
British Airways Logo
7:15 am - 11:50 pmLIS-BOI
23h 35m2 stops
$4,871British Airways
Find Deal
Fri, Apr 10 - Tue, Apr 21

United Airlines flights from Boise to Lisbon

Our best United Airlines deals on Boise to Lisbon flight tickets
United Airlines
Dec 2
BOI6:35 amBoise Air Term. Gowen Fld
19h 45m
2 stops
LIS9:20 amLisbon Humberto Delgado
Dec 10
LIS11:00 amLisbon Humberto Delgado
43h 44m
2 stops
BOI11:44 pmBoise Air Term. Gowen Fld
$539
Find similar
United Airlines
Dec 8
BOI8:15 amBoise Air Term. Gowen Fld
16h 55m
2 stops
LIS8:10 amLisbon Humberto Delgado
Dec 16
LIS5:00 amLisbon Humberto Delgado
21h 43m
2 stops
BOI7:43 pmBoise Air Term. Gowen Fld
$546
Find similar
United Airlines
Nov 4
BOI8:25 amBoise Air Term. Gowen Fld
18h 50m
2 stops
LIS10:15 amLisbon Humberto Delgado
Nov 18
LIS11:20 amLisbon Humberto Delgado
31h 19m
2 stops
BOI11:39 amBoise Air Term. Gowen Fld
$553
Find similar

Delta flights from Boise to Lisbon

Our best Delta deals on Boise to Lisbon flight tickets
Delta
Nov 4
BOI9:00 amBoise Air Term. Gowen Fld
17h 00m
2 stops
LIS9:00 amLisbon Humberto Delgado
Nov 18
LIS10:00 amLisbon Humberto Delgado
21h 35m
2 stops
BOI12:35 amBoise Air Term. Gowen Fld
$576
Find similar
Delta
Nov 14
BOI11:42 amBoise Air Term. Gowen Fld
22h 48m
2 stops
LIS5:30 pmLisbon Humberto Delgado
Nov 21
LIS5:00 amLisbon Humberto Delgado
24h 22m
2 stops
BOI10:22 pmBoise Air Term. Gowen Fld
$615
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated October 23, 2025.
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

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 12/2

6:35 am-9:20 am

2 stops19h 45m

Lisbon Humberto Delgado

Wed 12/10

11:00 am-11:44 pm

2 stops43h 44m

$538

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 12/2

6:35 am-9:20 am

2 stops19h 45m

Lisbon Humberto Delgado

Wed 12/10

11:00 am-11:44 pm

2 stops43h 44m

$539

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 12/8

8:15 am-8:10 am

2 stops16h 55m

Lisbon Humberto Delgado

Tue 12/16

5:00 am-7:43 pm

2 stops21h 43m

$546

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 11/4

8:25 am-10:15 am

2 stops18h 50m

Lisbon Humberto Delgado

Tue 11/18

11:20 am-11:39 am

2 stops31h 19m

$553

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 11/4

9:00 am-9:00 am

2 stops17h 00m

Lisbon Humberto Delgado

Tue 11/18

10:00 am-12:35 am

2 stops21h 35m

$576

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sat 12/6

3:54 pm-8:55 am

2 stops34h 01m

Lisbon Humberto Delgado

Wed 12/10

7:05 am-10:05 pm

2 stops22h 00m

$599

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Fri 11/14

11:42 am-5:30 pm

2 stops22h 48m

Lisbon Humberto Delgado

Fri 11/21

5:00 am-10:22 pm

2 stops24h 22m

$615

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sat 12/6

3:54 pm-8:55 am

2 stops34h 01m

Lisbon Humberto Delgado

Wed 12/10

7:05 am-10:05 pm

2 stops22h 00m

$689

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 11/4

8:17 am-9:20 am

3 stops18h 03m

Lisbon Humberto Delgado

Tue 11/18

11:20 am-11:39 am

3 stops31h 19m

$1,244

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Fri 4/10

6:00 pm-6:05 pm

2 stops17h 05m

Lisbon Humberto Delgado

Tue 4/21

7:15 am-11:50 pm

2 stops23h 35m

$4,871

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Lisbon from

How to get the cheapest flight ticket from Boise to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Lisbon?

In general, November is the cheapest month to fly from Boise to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $670. If you are unable to visit Lisbon during the month of November, then departing from Boise during the month February is also very affordable. Most momondo users find prices during this month for around $704.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $1,041. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Boise to Lisbon for around $1,444.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the afternoon when flights can be purchased for as low as $1,071. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,393 on average. Flights to Lisbon from Boise in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Boise to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Lisbon according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boise to Lisbon (BOI to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Lisbon

Direct flights

None
There are no direct flights from Boise to Lisbon. There are no popular flight routes from Boise to Lisbon.
Search flight deals

  • How far is Boise Air Term. Gowen Fld to Lisbon Humberto Delgado by plane?

    The distance between Boise Air Term. Gowen Fld and Lisbon Humberto Delgado is about 5150.4 mi. In terms of flight time, this usually takes a little over 16h 55m.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Lisbon Humberto Delgado Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Lisbon Humberto Delgado Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Lisbon Humberto Delgado Airport?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Lisbon Humberto Delgado Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Lisbon Humberto Delgado Airport.

  • What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

    The travel and health documents required for your trip to Lisbon Humberto Delgado Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lisbon Humberto Delgado Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Boise to Lisbon?

Best airlines flying from Boise to Lisbon

Compare and see reviews for airlines that fly from Boise to Lisbon with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $601Free CancellationRating
7.4
8,991 reviews
Search United Airlines flights
Air CanadaPriceFrom $602Free CancellationRating
7.1
10,346 reviews
Search Air Canada flights
American AirlinesPriceFrom $621Free CancellationRating
7.2
11,028 reviews
Search American Airlines flights
DeltaPriceFrom $654Free CancellationRating
7.9
7,981 reviews
Search Delta flights

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Ericeira
Nazaré
Oeiras
Setúbal
Peniche
Estoril
Leiria
Sesimbra
Tomar
Almada
Evora
Zambujeira do Mar
Batalha
Figueira da Foz
Óbidos
Torres Vedras
Comporta
Sines

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Lisbon?

It is quick and easy to find Boise to Lisbon flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Lisbon that suits you.

Can I find flights from Boise to Lisbon with flexible booking policies on momondo?

All flight searches from Boise to Lisbon on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boise to Lisbon?

Once you have performed a search for Boise to Lisbon flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Boise to Lisbon right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Lisbon from Boise. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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