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Cheap flights from Boise to Lisbon from $331

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 11/18. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boise to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
6:20 am - 10:40 amBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
21h 20m2 stops San Francisco Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
11:20 am - 11:06 pmLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
42h 46m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$721Air Canada
Mon, Jan 11 - Fri, Jan 15
Air France Logo
5:15 am - 9:00 amBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
20h 45m2 stops Minneapolis St Paul Boston Logan Intl
Air France Logo
5:30 am - 5:58 pmLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
19h 28m2 stops Paris Charles de Gaulle Salt Lake City
$738Air France
Tue, Nov 10 - Fri, Nov 20
United Airlines Logo
9:40 am - 8:10 amBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
15h 30m2 stops Denver Intl Newark
United Airlines Logo
10:15 am - 9:16 pmLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
18h 01m2 stops Newark Denver Intl
$742United Airlines
Sun, Feb 7 - Tue, Feb 9
Finnair Logo
7:02 am - 3:50 pmBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
25h 48m2 stops Dallas/Fort Worth Helsinki-Vantaa
Finnair Logo
10:40 pm - 10:29 pmLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
30h 49m2 stops Helsinki-Vantaa Dallas/Fort Worth
$798Finnair
Mon, Sep 28 - Wed, Oct 14
American Airlines Logo
1:27 pm - 2:50 pmBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
18h 23m2 stops Chicago O'Hare Intl London Heathrow
American Airlines Logo
6:45 pm - 11:29 amLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
23h 44m2 stops Madrid Barajas Dallas/Fort Worth
$806American Airlines
Sun, Nov 1 - Sat, Nov 7
United Airlines Logo
6:20 am - 10:40 amBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
21h 20m2 stops San Francisco Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
11:20 am - 9:42 pmLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
41h 22m2 stops Toronto Pearson Intl Denver Intl
$815United Airlines
Mon, Dec 14 - Tue, Dec 29
Delta Logo
8:25 am - 2:55 pmBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
23h 30m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle
Delta Logo
5:35 am - 10:08 pmLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
23h 33m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl
$907Delta
Thu, Oct 15 - Sat, Oct 24
Delta Logo
12:17 pm - 5:50 pmBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
22h 33m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle
Delta Logo
5:00 am - 6:39 pmLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
20h 39m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
$949Delta
Sun, Sep 20 - Sun, Sep 27
Delta Logo
10:34 am - 5:50 pmBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
24h 16m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle
Delta Logo
5:00 am - 11:59 pmLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
25h 59m2 stops Amsterdam Schiphol Minneapolis St Paul
$999Delta
Tue, Sep 8 - Mon, Sep 14
United Airlines Logo
5:00 am - 8:20 amBOI  Boise Air Term. Gowen Fld-LIS Lisbon Humberto Delgado
20h 20m2 stops Denver Intl Newark
United Airlines Logo
5:05 am - 9:35 amLIS  Lisbon Humberto Delgado-BOI Boise Air Term. Gowen Fld
35h 30m2 stops Frankfurt am Main Denver Intl
$1,075United Airlines
Thu, Sep 10 - Sun, Sep 20

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United Airlines flights from Boise to Lisbon

Our best United Airlines deals on Boise to Lisbon flight tickets
United Airlines
Feb 7
BOI9:40 amBoise Air Term. Gowen Fld
15h 30m
2 stops
LIS8:10 amLisbon Humberto Delgado
Feb 9
LIS10:15 amLisbon Humberto Delgado
18h 01m
2 stops
BOI9:16 pmBoise Air Term. Gowen Fld
$742
United Airlines
Dec 14
BOI6:20 amBoise Air Term. Gowen Fld
21h 20m
2 stops
LIS10:40 amLisbon Humberto Delgado
Dec 29
LIS11:20 amLisbon Humberto Delgado
41h 22m
2 stops
BOI9:42 pmBoise Air Term. Gowen Fld
$815
United Airlines
Sep 10
BOI5:00 amBoise Air Term. Gowen Fld
20h 20m
2 stops
LIS8:20 amLisbon Humberto Delgado
Sep 20
LIS5:05 amLisbon Humberto Delgado
35h 30m
2 stops
BOI9:35 amBoise Air Term. Gowen Fld
$1,075

Air Canada flights from Boise to Lisbon

Our best Air Canada deals on Boise to Lisbon flight tickets
Air Canada
Jan 11
BOI6:20 amBoise Air Term. Gowen Fld
21h 20m
2 stops
LIS10:40 amLisbon Humberto Delgado
Jan 15
LIS11:20 amLisbon Humberto Delgado
42h 46m
2 stops
BOI11:06 pmBoise Air Term. Gowen Fld
$721
Air Canada
Nov 10
BOI6:30 amBoise Air Term. Gowen Fld
19h 50m
3 stops
LIS9:20 amLisbon Humberto Delgado
Nov 20
LIS11:20 amLisbon Humberto Delgado
31h 10m
3 stops
BOI11:30 amBoise Air Term. Gowen Fld
$943
Air Canada
Oct 15
BOI10:30 amBoise Air Term. Gowen Fld
17h 35m
3 stops
LIS11:05 amLisbon Humberto Delgado
Oct 24
LIS1:00 pmLisbon Humberto Delgado
27h 52m
3 stops
BOI9:52 amBoise Air Term. Gowen Fld
$1,208

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 August 12, 2026.
Use the filters below to find and compare flights from Boise to Lisbon that are best for you.

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Depart

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Price

Cheapest round-trip

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Mon 1/11

6:20 am-10:40 am

2 stops21h 20m

Lisbon Humberto Delgado

Fri 1/15

11:20 am-11:06 pm

2 stops42h 46m

$721

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Tue 11/10

5:15 am-9:00 am

2 stops20h 45m

Lisbon Humberto Delgado

Fri 11/20

5:30 am-5:58 pm

2 stops19h 28m

$738
Quickest round-trip

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Sun 2/7

9:40 am-8:10 am

2 stops15h 30m

Lisbon Humberto Delgado

Tue 2/9

10:15 am-9:16 pm

2 stops18h 01m

$742

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Mon 9/28

7:02 am-3:50 pm

2 stops25h 48m

Lisbon Humberto Delgado

Wed 10/14

10:40 pm-10:29 pm

2 stops30h 49m

$798

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Sun 11/1

1:27 pm-2:50 pm

2 stops18h 23m

Lisbon Humberto Delgado

Sat 11/7

6:45 pm-11:29 am

2 stops23h 44m

$806

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Mon 12/14

6:20 am-10:40 am

2 stops21h 20m

Lisbon Humberto Delgado

Tue 12/29

11:20 am-9:42 pm

2 stops41h 22m

$815

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Thu 10/15

8:25 am-2:55 pm

2 stops23h 30m

Lisbon Humberto Delgado

Sat 10/24

5:35 am-10:08 pm

2 stops23h 33m

$907

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Sun 9/20

12:17 pm-5:50 pm

2 stops22h 33m

Lisbon Humberto Delgado

Sun 9/27

5:00 am-6:39 pm

2 stops20h 39m

$949

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Tue 9/8

10:34 am-5:50 pm

2 stops24h 16m

Lisbon Humberto Delgado

Mon 9/14

5:00 am-11:59 pm

2 stops25h 59m

$999

BoiseLisbon

BOI Boise Air Term. Gowen Fld - LIS Lisbon Humberto Delgado

BOILIS

Boise Air Term. Gowen Fld

Thu 9/10

5:00 am-8:20 am

2 stops20h 20m

Lisbon Humberto Delgado

Sun 9/20

5:05 am-9:35 am

2 stops35h 30m

$1,075

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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, July 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 $0. If you are unable to visit Lisbon during the month of July, then departing from Boise during the month January is also very affordable. Most momondo users find prices during this month for around $0.

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

18h 49m

Direct flights

None
The fastest flight from Boise to Lisbon takes 18h 49m
There are no direct flights from Boise to Lisbon. There are no popular flight routes from Boise to Lisbon.
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Frequently asked questions about flying from Boise to Lisbon

  • 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 18h 49m.

  • 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 $467Free CancellationRating
7.4
10,111 reviews
Search United Airlines flights
DeltaPriceFrom $549Free CancellationRating
7.8
8,505 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
Figueira da Foz
Setúbal
Nazaré
Estoril
Evora
Ericeira
Peniche
Óbidos
Tomar
Batalha
Leiria
Oeiras
Sesimbra
Zambujeira do Mar
Torres Vedras
Comporta
Sines
Caldas da Rainha

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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