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Cheap flights from Boise to Lisbon from $324

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 1/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boise to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:10 am - 8:10 am
BOI
-
LIS
19h 00m2 stops
United Airlines Logo
11:20 am - 7:51 pm
LIS
-
BOI
39h 31m2 stops
$495United Airlines
Fri, Jan 23 - Fri, Jan 30
Air Canada Logo
6:10 am - 9:20 am
BOI
-
LIS
20h 10m2 stops
Air Canada Logo
11:20 am - 1:35 pm
LIS
-
BOI
33h 15m2 stops
$497Air Canada
Fri, Jan 23 - Fri, Jan 30
United Airlines Logo
8:15 am - 8:10 am
BOI
-
LIS
16h 55m2 stops
United Airlines Logo
5:00 am - 9:52 pm
LIS
-
BOI
23h 52m2 stops
$499United Airlines
Fri, Jan 23 - Tue, Jan 27
Delta Logo
5:30 am - 10:45 am
BOI
-
LIS
22h 15m2 stops
Delta Logo
5:00 am - 4:15 pm
LIS
-
BOI
18h 15m2 stops
$500Delta
Sat, Apr 11 - Tue, Apr 21
Delta Logo
9:15 am - 3:10 pm
BOI
-
LIS
22h 55m2 stops
Delta Logo
5:00 am - 6:28 pm
LIS
-
BOI
20h 28m2 stops
$501Delta
Fri, Jan 23 - Tue, Jan 27
Delta Logo
1:51 pm - 6:45 pm
BOI
-
LIS
21h 54m2 stops
Delta Logo
5:00 am - 9:25 pm
LIS
-
BOI
23h 25m2 stops
$505Delta
Sat, Apr 18 - Thu, Apr 30
Delta Logo
11:36 pm - 8:00 am
BOI
-
LIS
25h 24m2 stops
Delta Logo
5:35 am - 9:25 pm
LIS
-
BOI
22h 50m2 stops
$507Delta
Wed, Apr 15 - Mon, Apr 27
Delta Logo
11:36 pm - 8:00 am
BOI
-
LIS
25h 24m2 stops
Delta Logo
12:45 pm - 11:57 pm
LIS
-
BOI
18h 12m2 stops
$511Delta
Mon, Apr 20 - Fri, May 1
Delta Logo
1:51 pm - 6:45 pm
BOI
-
LIS
21h 54m2 stops
Delta Logo
5:35 am - 9:25 pm
LIS
-
BOI
22h 50m2 stops
$512Delta
Sat, Apr 18 - Tue, Apr 28
Delta Logo
4:40 pm - 5:50 pm
BOI
-
LIS
18h 10m2 stops
Delta Logo
10:00 am - 10:10 pm
LIS
-
BOI
19h 10m2 stops
$515Delta
Tue, Apr 7 - Fri, Apr 17

United Airlines flights from Boise to Lisbon

Our best United Airlines deals on Boise to Lisbon flight tickets
United Airlines
Jan 23
BOI6:10 amBoise Air Term. Gowen Fld
19h 00m
2 stops
LIS8:10 amLisbon Humberto Delgado
Jan 30
LIS11:20 amLisbon Humberto Delgado
39h 31m
2 stops
BOI7:51 pmBoise Air Term. Gowen Fld
$495
Find similar
United Airlines
Jan 23
BOI8:15 amBoise Air Term. Gowen Fld
16h 55m
2 stops
LIS8:10 amLisbon Humberto Delgado
Jan 27
LIS5:00 amLisbon Humberto Delgado
23h 52m
2 stops
BOI9:52 pmBoise Air Term. Gowen Fld
$499
Find similar
United Airlines
Apr 22
BOI5:29 pmBoise Air Term. Gowen Fld
32h 51m
2 stops
LIS9:20 amLisbon Humberto Delgado
May 13
LIS11:25 amLisbon Humberto Delgado
31h 37m
2 stops
BOI12:02 pmBoise Air Term. Gowen Fld
$570
Find similar

Air Canada flights from Boise to Lisbon

Our best Air Canada deals on Boise to Lisbon flight tickets
Air Canada
Jan 23
BOI6:10 amBoise Air Term. Gowen Fld
20h 10m
2 stops
LIS9:20 amLisbon Humberto Delgado
Jan 30
LIS11:20 amLisbon Humberto Delgado
33h 15m
2 stops
BOI1:35 pmBoise Air Term. Gowen Fld
$497
Find similar
Air Canada
Jan 15
BOI6:10 amBoise Air Term. Gowen Fld
20h 10m
2 stops
LIS9:20 amLisbon Humberto Delgado
Jan 21
LIS11:20 amLisbon Humberto Delgado
42h 37m
2 stops
BOI10:57 pmBoise Air Term. Gowen Fld
$609
Find similar
Air Canada
Mar 31
BOI6:15 amBoise Air Term. Gowen Fld
20h 05m
2 stops
LIS9:20 amLisbon Humberto Delgado
Apr 9
LIS1:00 pmLisbon Humberto Delgado
39h 22m
2 stops
BOI9:22 pmBoise Air Term. Gowen Fld
$653
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 December 28, 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

Fri 1/23

6:10 am-8:10 am

2 stops19h 00m

Lisbon Humberto Delgado

Fri 1/30

11:20 am-7:51 pm

2 stops39h 31m

$495

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Fri 1/23

6:10 am-9:20 am

2 stops20h 10m

Lisbon Humberto Delgado

Fri 1/30

11:20 am-1:35 pm

2 stops33h 15m

$497

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Fri 1/23

8:15 am-8:10 am

2 stops16h 55m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-9:52 pm

2 stops23h 52m

$499

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sat 4/11

5:30 am-10:45 am

2 stops22h 15m

Lisbon Humberto Delgado

Tue 4/21

5:00 am-4:15 pm

2 stops18h 15m

$500

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Fri 1/23

9:15 am-3:10 pm

2 stops22h 55m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-6:28 pm

2 stops20h 28m

$501

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sat 4/18

1:51 pm-6:45 pm

2 stops21h 54m

Lisbon Humberto Delgado

Thu 4/30

5:00 am-9:25 pm

2 stops23h 25m

$505

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 4/15

11:36 pm-8:00 am

2 stops25h 24m

Lisbon Humberto Delgado

Mon 4/27

5:35 am-9:25 pm

2 stops22h 50m

$507

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 4/20

11:36 pm-8:00 am

2 stops25h 24m

Lisbon Humberto Delgado

Fri 5/1

12:45 pm-11:57 pm

2 stops18h 12m

$511

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sat 4/18

1:51 pm-6:45 pm

2 stops21h 54m

Lisbon Humberto Delgado

Tue 4/28

5:35 am-9:25 pm

2 stops22h 50m

$512

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 4/7

4:40 pm-5:50 pm

2 stops18h 10m

Lisbon Humberto Delgado

Fri 4/17

10:00 am-10:10 pm

2 stops19h 10m

$515

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 $642. If you are unable to visit Lisbon during the month of November, then departing from Boise during the month March is also very affordable. Most momondo users find prices during this month for around $656.

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

Fastest flight time

17h 25m

Direct flights

None
The fastest flight from Boise to Lisbon takes 17h 25m
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 17h 25m.

  • 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
9,114 reviews
Search United Airlines flights
Air CanadaPriceFrom $602Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
American AirlinesPriceFrom $621Free CancellationRating
7.2
11,071 reviews
Search American Airlines flights
DeltaPriceFrom $654Free CancellationRating
7.9
8,016 reviews
Search Delta flights

Traveling to a place near Lisbon?

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

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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