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Cheap flights from Idaho to Lisbon from $387

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Lisbon departing on 9/22. 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 Idaho to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:14 pm - 3:40 pm
BOI
-
LIS
18h 26m
2 stops
American Airlines Logo
6:35 am - 10:54 pm
LIS
-
BOI
23h 19m
2 stops
$781American Airlines
Wed, Apr 22 - Wed, May 6
Multiple Airlines Logo
1:29 pm - 3:45 pm
BOI
-
LIS
19h 16m
2 stops
Multiple Airlines Logo
4:35 pm - 10:38 pm
LIS
-
BOI
37h 03m
2 stops
$786Multiple Airlines
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
8:11 am - 9:05 am
BOI
-
LIS
17h 54m
2 stops
Multiple Airlines Logo
6:35 am - 10:54 pm
LIS
-
BOI
23h 19m
2 stops
$791Multiple Airlines
Wed, Apr 22 - Wed, May 6
Multiple Airlines Logo
6:00 am - 11:25 pm
BOI
-
LIS
34h 25m
2 stops
Multiple Airlines Logo
8:45 pm - 10:38 pm
LIS
-
BOI
32h 53m
2 stops
$818Multiple Airlines
Mon, May 4 - Mon, May 11
American Airlines Logo
2:14 pm - 3:45 pm
BOI
-
LIS
18h 31m
2 stops
American Airlines Logo
6:35 am - 10:38 pm
LIS
-
BOI
23h 03m
2 stops
$828American Airlines
Mon, May 4 - Tue, May 12
Multiple Airlines Logo
3:44 pm - 5:50 pm
BOI
-
LIS
19h 06m
2 stops
Multiple Airlines Logo
5:00 am - 5:09 pm
LIS
-
BOI
19h 09m
2 stops
$833Multiple Airlines
Wed, Apr 22 - Wed, May 13
KLM Logo
3:23 pm - 6:45 pm
BOI
-
LIS
20h 22m
2 stops
KLM Logo
5:00 am - 5:09 pm
LIS
-
BOI
19h 09m
2 stops
$837KLM
Wed, Apr 22 - Wed, May 13
Finnair Logo
1:29 pm - 11:25 pm
BOI
-
LIS
26h 56m
2 stops
Finnair Logo
4:35 pm - 10:54 pm
LIS
-
BOI
37h 19m
2 stops
$845Finnair
Tue, May 5 - Wed, May 13
Lufthansa Logo
2:30 pm - 11:35 pm
JAC
-
LIS
26h 05m
2 stops
Lufthansa Logo
11:25 am - 3:18 pm
LIS
-
JAC
34h 53m
2 stops
$881Lufthansa
Thu, Apr 30 - Tue, May 5
KLM Logo
2:10 pm - 6:45 pm
GEG
-
LIS
20h 35m
2 stops
KLM Logo
5:00 am - 3:31 pm
LIS
-
GEG
18h 31m
2 stops
$908KLM
Fri, Apr 24 - Sat, May 9

KLM flights from Idaho to Lisbon

Our best KLM deals on Idaho to Lisbon flight tickets
KLM
Apr 14
BOI3:44 pmBoise Air Term. Gowen Fld
20h 01m
2 stops
LIS6:45 pmLisbon Humberto Delgado
Apr 28
LIS5:00 amLisbon Humberto Delgado
22h 00m
2 stops
BOI8:00 pmBoise Air Term. Gowen Fld
$790
KLM
Apr 22
BOI3:23 pmBoise Air Term. Gowen Fld
20h 22m
2 stops
LIS6:45 pmLisbon Humberto Delgado
May 13
LIS5:00 amLisbon Humberto Delgado
19h 09m
2 stops
BOI5:09 pmBoise Air Term. Gowen Fld
$837
KLM
Apr 14
BOI3:23 pmBoise Air Term. Gowen Fld
20h 22m
2 stops
LIS6:45 pmLisbon Humberto Delgado
Apr 28
LIS9:20 amLisbon Humberto Delgado
18h 09m
2 stops
BOI8:29 pmBoise Air Term. Gowen Fld
$840

Scandinavian Airlines flights from Idaho to Lisbon

Our best Scandinavian Airlines deals on Idaho to Lisbon flight tickets
Scandinavian Airlines
Sep 8
BOI10:23 amBoise Air Term. Gowen Fld
22h 12m
2 stops
LIS3:35 pmLisbon Humberto Delgado
Sep 19
LIS4:25 pmLisbon Humberto Delgado
33h 10m
2 stops
BOI6:35 pmBoise Air Term. Gowen Fld
$1,011
Scandinavian Airlines
Sep 11
BOI12:42 pmBoise Air Term. Gowen Fld
19h 53m
2 stops
LIS3:35 pmLisbon Humberto Delgado
Sep 19
LIS4:25 pmLisbon Humberto Delgado
33h 10m
2 stops
BOI6:35 pmBoise Air Term. Gowen Fld
$1,079
Scandinavian Airlines
Sep 8
BOI12:42 pmBoise Air Term. Gowen Fld
26h 23m
3 stops
LIS10:05 pmLisbon Humberto Delgado
Sep 19
LIS7:15 amLisbon Humberto Delgado
22h 49m
2 stops
BOI11:04 pmBoise Air Term. Gowen Fld
$1,272

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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 April 11, 2026.
Use the filters below to find and compare flights from Idaho 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

Wed 4/22

2:14 pm-3:40 pm

2 stops18h 26m

Lisbon Humberto Delgado

Wed 5/6

6:35 am-10:54 pm

2 stops23h 19m

$781

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 4/27

1:29 pm-3:45 pm

2 stops19h 16m

Lisbon Humberto Delgado

Mon 5/4

4:35 pm-10:38 pm

2 stops37h 03m

$786

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 4/22

8:11 am-9:05 am

2 stops17h 54m

Lisbon Humberto Delgado

Wed 5/6

6:35 am-10:54 pm

2 stops23h 19m

$791

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 5/4

6:00 am-11:25 pm

2 stops34h 25m

Lisbon Humberto Delgado

Mon 5/11

8:45 pm-10:38 pm

2 stops32h 53m

$818

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 5/4

2:14 pm-3:45 pm

2 stops18h 31m

Lisbon Humberto Delgado

Tue 5/12

6:35 am-10:38 pm

2 stops23h 03m

$828
Quickest round-trip

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 4/22

3:44 pm-5:50 pm

2 stops19h 06m

Lisbon Humberto Delgado

Wed 5/13

5:00 am-5:09 pm

2 stops19h 09m

$833

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 4/22

3:23 pm-6:45 pm

2 stops20h 22m

Lisbon Humberto Delgado

Wed 5/13

5:00 am-5:09 pm

2 stops19h 09m

$837

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 5/5

1:29 pm-11:25 pm

2 stops26h 56m

Lisbon Humberto Delgado

Wed 5/13

4:35 pm-10:54 pm

2 stops37h 19m

$845

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

Thu 4/30

2:30 pm-11:35 pm

2 stops26h 05m

Lisbon Humberto Delgado

Tue 5/5

11:25 am-3:18 pm

2 stops34h 53m

$881

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Fri 4/24

2:10 pm-6:45 pm

2 stops20h 35m

Lisbon Humberto Delgado

Sat 5/9

5:00 am-3:31 pm

2 stops18h 31m

$908

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 Idaho 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 airline that flies from Idaho to Lisbon Humberto Delgado?

Lufthansa, Air Canada, and United Airlines are the most popular carriers operating from Idaho to Lisbon Humberto Delgado

Cheap Idaho to Lisbon flight deals and tips

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

Fastest flight time

19h 00m

Direct flights

None
The fastest flight from Idaho to Lisbon takes 19h 00m
There are no direct flights from Idaho to Lisbon. There are no popular flight routes from Idaho to Lisbon.
Search flight deals

Frequently asked questions about flying from Idaho to Lisbon

  • When did momondo last update prices for flights from Idaho to Lisbon Humberto Delgado Airport?

    Prices for flights from Idaho to Lisbon Humberto Delgado Airport refresh daily.

  • How many operators does momondo search for flights from Idaho to Lisbon Humberto Delgado Airport?

  • How old do you have to be to fly from Idaho to Lisbon Humberto Delgado Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho 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.

Best airlines flying from Idaho to Lisbon

Compare and see reviews for airlines that fly from Idaho to Lisbon with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $549Free CancellationRating
7.9
8,406 reviews
Search Delta flights
United AirlinesPriceFrom $618Free CancellationRating
7.4
9,569 reviews
Search United Airlines flights

Traveling to a place near Lisbon?

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

Why use momondo?

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

Finding the right flight to Lisbon from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Lisbon quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Lisbon from Idaho with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Lisbon from Idaho.

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

Of course. momondo tracks the price of Idaho to Lisbon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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