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Cheap flights from Idaho to Lisbon from $330

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 10/17. 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 Idaho to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:00 am - 6:55 am
BOI
-
LIS
18h 55m
2 stops
United Airlines Logo
11:20 am - 11:41 am
LIS
-
BOI
31h 21m
2 stops
$725United Airlines
Wed, Nov 4 - Wed, Nov 11
United Airlines Logo
4:05 pm - 8:10 am
BOI
-
LIS
33h 05m
2 stops
United Airlines Logo
11:20 am - 11:59 pm
LIS
-
BOI
43h 39m
2 stops
$726United Airlines
Sun, Dec 6 - Wed, Dec 9
United Airlines Logo
6:25 am - 10:05 am
BOI
-
LIS
20h 40m
2 stops
United Airlines Logo
5:00 am - 11:59 pm
LIS
-
BOI
25h 59m
2 stops
$729United Airlines
Tue, Dec 29 - Tue, Feb 9
Iberia Logo
6:00 am - 6:05 pm
GEG
-
LIS
29h 05m
2 stops
Iberia Logo
8:45 pm - 8:55 pm
LIS
-
GEG
32h 10m
2 stops
$743Iberia
Mon, Oct 26 - Mon, Nov 2
Multiple Airlines Logo
6:30 am - 6:55 am
BOI
-
LIS
17h 25m
2 stops
Multiple Airlines Logo
11:20 am - 9:38 am
LIS
-
BOI
29h 18m
3 stops
$753Multiple Airlines
Wed, Nov 4 - Wed, Nov 11
Air Canada Logo
6:30 am - 8:55 am
BOI
-
LIS
19h 25m
3 stops
Air Canada Logo
11:20 am - 9:38 am
LIS
-
BOI
29h 18m
3 stops
$758Air Canada
Wed, Nov 4 - Wed, Nov 11
Air Canada Logo
6:20 am - 6:55 am
BOI
-
LIS
17h 35m
2 stops
Air Canada Logo
11:20 am - 7:16 pm
LIS
-
BOI
38h 56m
2 stops
$775Air Canada
Wed, Dec 2 - Sat, Dec 12
Lufthansa Logo
2:40 pm - 11:30 pm
JAC
-
LIS
50h 50m
2 stops
Lufthansa Logo
5:00 am - 9:02 pm
LIS
-
JAC
23h 02m
2 stops
$775Lufthansa
Sat, Oct 31 - Sat, Nov 7
United Airlines Logo
4:25 pm - 10:05 am
JAC
-
LIS
35h 40m
2 stops
United Airlines Logo
11:20 am - 9:02 pm
LIS
-
JAC
40h 42m
2 stops
$776United Airlines
Sat, Oct 31 - Sat, Nov 7
Multiple Airlines Logo
4:25 pm - 10:05 am
JAC
-
LIS
35h 40m
2 stops
Multiple Airlines Logo
5:00 am - 9:02 pm
LIS
-
JAC
23h 02m
2 stops
$779Multiple Airlines
Sat, Oct 31 - Sat, Nov 7

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Delta flights from Idaho to Lisbon

Our best Delta deals on Idaho to Lisbon flight tickets
Delta
Oct 15
BOI8:22 amBoise Air Term. Gowen Fld
19h 53m
2 stops
LIS11:15 amLisbon Humberto Delgado
Oct 24
LIS5:00 amLisbon Humberto Delgado
20h 33m
2 stops
BOI6:33 pmBoise Air Term. Gowen Fld
$885
Delta
Sep 2
BOI1:06 pmBoise Air Term. Gowen Fld
22h 39m
2 stops
LIS6:45 pmLisbon Humberto Delgado
Sep 8
LIS5:00 amLisbon Humberto Delgado
19h 19m
2 stops
BOI5:19 pmBoise Air Term. Gowen Fld
$943
Delta
Sep 15
BOI12:14 pmBoise Air Term. Gowen Fld
22h 36m
2 stops
LIS5:50 pmLisbon Humberto Delgado
Sep 26
LIS5:00 amLisbon Humberto Delgado
19h 19m
2 stops
BOI5:19 pmBoise Air Term. Gowen Fld
$998

United Airlines flights from Idaho to Lisbon

Our best United Airlines deals on Idaho to Lisbon flight tickets
United Airlines
Nov 4
BOI5:00 amBoise Air Term. Gowen Fld
18h 55m
2 stops
LIS6:55 amLisbon Humberto Delgado
Nov 11
LIS11:20 amLisbon Humberto Delgado
31h 21m
2 stops
BOI11:41 amBoise Air Term. Gowen Fld
$725
United Airlines
Dec 6
BOI4:05 pmBoise Air Term. Gowen Fld
33h 05m
2 stops
LIS8:10 amLisbon Humberto Delgado
Dec 9
LIS11:20 amLisbon Humberto Delgado
43h 39m
2 stops
BOI11:59 pmBoise Air Term. Gowen Fld
$726
United Airlines
Dec 29
BOI6:25 amBoise Air Term. Gowen Fld
20h 40m
2 stops
LIS10:05 amLisbon Humberto Delgado
Feb 9
LIS5:00 amLisbon Humberto Delgado
25h 59m
2 stops
BOI11:59 pmBoise Air Term. Gowen Fld
$729

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 July 14, 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 11/4

5:00 am-6:55 am

2 stops18h 55m

Lisbon Humberto Delgado

Wed 11/11

11:20 am-11:41 am

2 stops31h 21m

$725

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sun 12/6

4:05 pm-8:10 am

2 stops33h 05m

Lisbon Humberto Delgado

Wed 12/9

11:20 am-11:59 pm

2 stops43h 39m

$726
Quickest round-trip

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 12/29

6:25 am-10:05 am

2 stops20h 40m

Lisbon Humberto Delgado

Tue 2/9

5:00 am-11:59 pm

2 stops25h 59m

$729

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Mon 10/26

6:00 am-6:05 pm

2 stops29h 05m

Lisbon Humberto Delgado

Mon 11/2

8:45 pm-8:55 pm

2 stops32h 10m

$743

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 11/4

6:30 am-6:55 am

2 stops17h 25m

Lisbon Humberto Delgado

Wed 11/11

11:20 am-9:38 am

3 stops29h 18m

$753

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 11/4

6:30 am-8:55 am

3 stops19h 25m

Lisbon Humberto Delgado

Wed 11/11

11:20 am-9:38 am

3 stops29h 18m

$758

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 12/2

6:20 am-6:55 am

2 stops17h 35m

Lisbon Humberto Delgado

Sat 12/12

11:20 am-7:16 pm

2 stops38h 56m

$775

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

Sat 10/31

2:40 pm-11:30 pm

2 stops50h 50m

Lisbon Humberto Delgado

Sat 11/7

5:00 am-9:02 pm

2 stops23h 02m

$775

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

Sat 10/31

4:25 pm-10:05 am

2 stops35h 40m

Lisbon Humberto Delgado

Sat 11/7

11:20 am-9:02 pm

2 stops40h 42m

$776

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

Sat 10/31

4:25 pm-10:05 am

2 stops35h 40m

Lisbon Humberto Delgado

Sat 11/7

5:00 am-9:02 pm

2 stops23h 02m

$779

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, July 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 July, then departing from Idaho during the month January is also very affordable. Most momondo users find prices during this month for around $0.

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

15h 30m

Direct flights

None
The fastest flight from Idaho to Lisbon takes 15h 30m
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
United AirlinesPriceFrom $467Free CancellationRating
7.4
9,983 reviews
Search United Airlines flights
DeltaPriceFrom $549Free CancellationRating
7.8
8,462 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
Setúbal
Fátima
Estoril
Figueira da Foz
Evora
Nazaré
Oeiras
Leiria
Peniche
Batalha
Óbidos
Sesimbra
Zambujeira do Mar
Costa da Caparica
Tomar
Sines
Torres Vedras
Comporta

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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