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Cheap flights from Idaho to Lisbon from $353

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 10/6. 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.
United Airlines Logo
5:00 am - 9:50 am
GEG
-
LIS
20h 50m
2 stops
United Airlines Logo
1:00 pm - 9:09 pm
LIS
-
GEG
40h 09m
2 stops
$726United Airlines
Mon, Nov 16 - Thu, Nov 19
United Airlines Logo
7:00 am - 10:15 am
BOI
-
LIS
20h 15m
2 stops
United Airlines Logo
1:00 pm - 9:15 pm
LIS
-
BOI
39h 15m
2 stops
$727United Airlines
Mon, Nov 2 - Thu, Nov 5
American Airlines Logo
3:05 pm - 5:40 pm
GEG
-
LIS
18h 35m
2 stops
American Airlines Logo
6:30 am - 8:55 pm
LIS
-
GEG
22h 25m
2 stops
$727American Airlines
Wed, Nov 4 - Wed, Nov 11
United Airlines Logo
7:00 am - 10:15 am
BOI
-
LIS
20h 15m
2 stops
United Airlines Logo
11:55 am - 11:05 pm
LIS
-
BOI
18h 10m
2 stops
$743United Airlines
Mon, Nov 16 - Thu, Nov 19
Multiple Airlines Logo
10:39 am - 11:00 am
BOI
-
LIS
17h 21m
3 stops
Multiple Airlines Logo
11:20 am - 9:43 am
LIS
-
BOI
29h 23m
2 stops
$754Multiple Airlines
Tue, Nov 3 - Wed, Nov 11
Scandinavian Airlines Logo
12:42 pm - 11:15 pm
BOI
-
LIS
27h 33m
2 stops
Scandinavian Airlines Logo
10:55 pm - 8:18 pm
LIS
-
BOI
28h 23m
2 stops
$769Scandinavian Airlines
Tue, Sep 8 - Sat, Sep 19
United Airlines Logo
5:00 am - 9:20 am
BOI
-
LIS
21h 20m
2 stops
United Airlines Logo
1:00 pm - 11:05 pm
LIS
-
BOI
40h 05m
2 stops
$782United Airlines
Tue, Oct 20 - Fri, Oct 30
Scandinavian Airlines Logo
10:23 am - 11:15 pm
BOI
-
LIS
29h 52m
2 stops
Scandinavian Airlines Logo
10:55 pm - 8:18 pm
LIS
-
BOI
28h 23m
2 stops
$789Scandinavian Airlines
Tue, Sep 8 - Sat, Sep 19
Multiple Airlines Logo
10:37 am - 11:05 am
BOI
-
LIS
17h 28m
3 stops
Multiple Airlines Logo
1:00 pm - 1:30 pm
LIS
-
BOI
30h 30m
2 stops
$792Multiple Airlines
Tue, Oct 20 - Fri, Oct 30
Delta Logo
9:27 am - 2:55 pm
GEG
-
LIS
21h 28m
2 stops
Delta Logo
5:35 am - 11:06 pm
LIS
-
GEG
25h 31m
2 stops
$947Delta
Tue, Jul 14 - Wed, Jul 29

United Airlines flights from Idaho to Lisbon

Our best United Airlines deals on Idaho to Lisbon flight tickets
United Airlines
Nov 16
GEG5:00 amSpokane
20h 50m
2 stops
LIS9:50 amLisbon Humberto Delgado
Nov 19
LIS1:00 pmLisbon Humberto Delgado
40h 09m
2 stops
GEG9:09 pmSpokane
$726
United Airlines
Nov 2
BOI7:00 amBoise Air Term. Gowen Fld
20h 15m
2 stops
LIS10:15 amLisbon Humberto Delgado
Nov 5
LIS1:00 pmLisbon Humberto Delgado
39h 15m
2 stops
BOI9:15 pmBoise Air Term. Gowen Fld
$727
United Airlines
Nov 16
BOI7:00 amBoise Air Term. Gowen Fld
20h 15m
2 stops
LIS10:15 amLisbon Humberto Delgado
Nov 19
LIS11:55 amLisbon Humberto Delgado
18h 10m
2 stops
BOI11:05 pmBoise Air Term. Gowen Fld
$743

Scandinavian Airlines flights from Idaho to Lisbon

Our best Scandinavian Airlines deals on Idaho to Lisbon flight tickets
Scandinavian Airlines
Sep 8
BOI12:42 pmBoise Air Term. Gowen Fld
27h 33m
2 stops
LIS11:15 pmLisbon Humberto Delgado
Sep 19
LIS10:55 pmLisbon Humberto Delgado
28h 23m
2 stops
BOI8:18 pmBoise Air Term. Gowen Fld
$769
Scandinavian Airlines
Sep 8
BOI10:23 amBoise Air Term. Gowen Fld
29h 52m
2 stops
LIS11:15 pmLisbon Humberto Delgado
Sep 19
LIS10:55 pmLisbon Humberto Delgado
28h 23m
2 stops
BOI8:18 pmBoise Air Term. Gowen Fld
$789
Scandinavian Airlines
Sep 8
BOI3:30 pmBoise Air Term. Gowen Fld
24h 45m
2 stops
LIS11:15 pmLisbon Humberto Delgado
Sep 19
LIS10:55 pmLisbon Humberto Delgado
30h 30m
2 stops
BOI10:25 pmBoise Air Term. Gowen Fld
$889

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 May 26, 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

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Mon 11/16

5:00 am-9:50 am

2 stops20h 50m

Lisbon Humberto Delgado

Thu 11/19

1:00 pm-9:09 pm

2 stops40h 09m

$726

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 11/2

7:00 am-10:15 am

2 stops20h 15m

Lisbon Humberto Delgado

Thu 11/5

1:00 pm-9:15 pm

2 stops39h 15m

$727

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Wed 11/4

3:05 pm-5:40 pm

2 stops18h 35m

Lisbon Humberto Delgado

Wed 11/11

6:30 am-8:55 pm

2 stops22h 25m

$727
Quickest round-trip

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 11/16

7:00 am-10:15 am

2 stops20h 15m

Lisbon Humberto Delgado

Thu 11/19

11:55 am-11:05 pm

2 stops18h 10m

$743

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 11/3

10:39 am-11:00 am

3 stops17h 21m

Lisbon Humberto Delgado

Wed 11/11

11:20 am-9:43 am

2 stops29h 23m

$754

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 9/8

12:42 pm-11:15 pm

2 stops27h 33m

Lisbon Humberto Delgado

Sat 9/19

10:55 pm-8:18 pm

2 stops28h 23m

$769

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 10/20

5:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Fri 10/30

1:00 pm-11:05 pm

2 stops40h 05m

$782

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 9/8

10:23 am-11:15 pm

2 stops29h 52m

Lisbon Humberto Delgado

Sat 9/19

10:55 pm-8:18 pm

2 stops28h 23m

$789

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 10/20

10:37 am-11:05 am

3 stops17h 28m

Lisbon Humberto Delgado

Fri 10/30

1:00 pm-1:30 pm

2 stops30h 30m

$792

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Tue 7/14

9:27 am-2:55 pm

2 stops21h 28m

Lisbon Humberto Delgado

Wed 7/29

5:35 am-11:06 pm

2 stops25h 31m

$947

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 month to fly to Lisbon?

In general, January is the cheapest month to fly from Idaho 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 January, then departing from Idaho during the month February is also very affordable. Most momondo users find prices during this month for around $467.

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

14h 31m

Direct flights

None
The fastest flight from Idaho to Lisbon takes 14h 31m
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
8,425 reviews
Search Delta flights
United AirlinesPriceFrom $601Free CancellationRating
7.4
9,749 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
Estoril
Peniche
Setúbal
Evora
Oeiras
Sesimbra
Leiria
Figueira da Foz
Zambujeira do Mar
Batalha
Óbidos
Tomar
Comporta
Sines
Torres Vedras
Costa da Caparica

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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