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Cheap flights from Boise to Portugal from $349

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 Portugal departing on 2/25. 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 Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:20 am - 9:50 pm
BOI
-
LIS
31h 30m
2 stops
Multiple Airlines Logo
8:20 am - 9:18 pm
LIS
-
BOI
19h 58m
2 stops
$453Multiple Airlines
mié., feb. 4 - mié., feb. 11
Multiple Airlines Logo
7:00 am - 3:25 pm
BOI
-
LIS
25h 25m
2 stops
Multiple Airlines Logo
4:10 pm - 10:22 pm
LIS
-
BOI
37h 12m
2 stops
$454Multiple Airlines
mar., feb. 24 - jue., mar. 5
United Airlines Logo
6:10 am - 8:10 am
BOI
-
LIS
19h 00m
2 stops
United Airlines Logo
10:15 am - 10:57 pm
LIS
-
BOI
19h 42m
2 stops
$462United Airlines
mar., feb. 3 - mar., feb. 10
Iberia Logo
1:53 pm - 8:05 pm
BOI
-
LIS
23h 12m
2 stops
Iberia Logo
8:45 pm - 9:07 pm
LIS
-
BOI
31h 22m
2 stops
$479Iberia
mar., abr. 14 - mar., abr. 28
United Airlines Logo
10:49 am - 11:30 pm
BOI
-
LIS
30h 41m
2 stops
United Airlines Logo
6:15 am - 9:54 am
LIS
-
BOI
34h 39m
2 stops
$492United Airlines
lun., mar. 23 - mié., abr. 1
United Airlines Logo
6:55 pm - 11:30 pm
BOI
-
LIS
22h 35m
2 stops
United Airlines Logo
6:15 am - 9:54 am
LIS
-
BOI
34h 39m
2 stops
$501United Airlines
sáb., mar. 21 - mié., abr. 1
United Airlines Logo
5:29 pm - 10:45 pm
BOI
-
LIS
22h 16m
2 stops
United Airlines Logo
6:15 am - 9:54 am
LIS
-
BOI
34h 39m
2 stops
$504United Airlines
sáb., abr. 18 - sáb., abr. 25
United Airlines Logo
5:24 pm - 9:20 am
BOI
-
LIS
56h 56m
2 stops
United Airlines Logo
6:10 am - 10:12 am
LIS
-
BOI
35h 02m
2 stops
$505United Airlines
lun., feb. 16 - lun., feb. 23
Delta Logo
9:00 am - 8:00 am
BOI
-
LIS
41h 00m
2 stops
Delta Logo
5:00 am - 9:01 pm
LIS
-
BOI
23h 01m
2 stops
$506Delta
dom., mar. 22 - jue., abr. 2
Delta Logo
9:00 am - 8:00 am
BOI
-
LIS
41h 00m
2 stops
Delta Logo
5:00 am - 10:04 pm
LIS
-
BOI
24h 04m
2 stops
$507Delta
dom., mar. 22 - mar., mar. 31

Iberia flights from Boise to Portugal

Our best Iberia deals on Boise to Portugal flight tickets
Iberia
Apr 14
BOI1:53 pmBoise Air Term. Gowen Fld
23h 12m
2 stops
LIS8:05 pmLisbon Humberto Delgado
Apr 28
LIS8:45 pmLisbon Humberto Delgado
31h 22m
2 stops
BOI9:07 pmBoise Air Term. Gowen Fld
$479
Iberia
May 2
BOI1:53 pmBoise Air Term. Gowen Fld
19h 12m
2 stops
LIS4:05 pmLisbon Humberto Delgado
May 11
LIS8:45 pmLisbon Humberto Delgado
31h 22m
2 stops
BOI9:07 pmBoise Air Term. Gowen Fld
$644

Delta flights from Boise to Portugal

Our best Delta deals on Boise to Portugal flight tickets
Delta
Mar 22
BOI9:00 amBoise Air Term. Gowen Fld
41h 00m
2 stops
LIS8:00 amLisbon Humberto Delgado
Apr 2
LIS5:00 amLisbon Humberto Delgado
23h 01m
2 stops
BOI9:01 pmBoise Air Term. Gowen Fld
$506
Delta
Mar 22
BOI9:00 amBoise Air Term. Gowen Fld
41h 00m
2 stops
LIS8:00 amLisbon Humberto Delgado
Mar 31
LIS5:00 amLisbon Humberto Delgado
24h 04m
2 stops
BOI10:04 pmBoise Air Term. Gowen Fld
$507
Delta
Mar 23
BOI5:30 amBoise Air Term. Gowen Fld
27h 40m
2 stops
LIS3:10 pmLisbon Humberto Delgado
Mar 31
LIS5:00 amLisbon Humberto Delgado
23h 01m
2 stops
BOI9:01 pmBoise Air Term. Gowen Fld
$590

momondo Fare Finder

 
Customize your flight search to find flights from Boise to Portugal 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 enero 21, 2026.
Use the filters below to find and compare flights from Boise to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mié. 2/4

7:20 am-9:50 pm

2 stops31h 30m

Lisbon Humberto Delgado

mié. 2/11

8:20 am-9:18 pm

2 stops19h 58m

$453

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mar. 2/24

7:00 am-3:25 pm

2 stops25h 25m

Lisbon Humberto Delgado

jue. 3/5

4:10 pm-10:22 pm

2 stops37h 12m

$454

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mar. 2/3

6:10 am-8:10 am

2 stops19h 00m

Lisbon Humberto Delgado

mar. 2/10

10:15 am-10:57 pm

2 stops19h 42m

$462

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

mar. 4/14

1:53 pm-8:05 pm

2 stops23h 12m

Lisbon Humberto Delgado

mar. 4/28

8:45 pm-9:07 pm

2 stops31h 22m

$479

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

lun. 3/23

10:49 am-11:30 pm

2 stops30h 41m

Lisbon Humberto Delgado

mié. 4/1

6:15 am-9:54 am

2 stops34h 39m

$492

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

sáb. 3/21

6:55 pm-11:30 pm

2 stops22h 35m

Lisbon Humberto Delgado

mié. 4/1

6:15 am-9:54 am

2 stops34h 39m

$501

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

sáb. 4/18

5:29 pm-10:45 pm

2 stops22h 16m

Lisbon Humberto Delgado

sáb. 4/25

6:15 am-9:54 am

2 stops34h 39m

$504

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

lun. 2/16

5:24 pm-9:20 am

2 stops56h 56m

Lisbon Humberto Delgado

lun. 2/23

6:10 am-10:12 am

2 stops35h 02m

$505

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

dom. 3/22

9:00 am-8:00 am

2 stops41h 00m

Lisbon Humberto Delgado

jue. 4/2

5:00 am-9:01 pm

2 stops23h 01m

$506

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

dom. 3/22

9:00 am-8:00 am

2 stops41h 00m

Lisbon Humberto Delgado

mar. 3/31

5:00 am-10:04 pm

2 stops24h 04m

$507

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 Portugal from

How to get the cheapest flight ticket from Boise to Portugal

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 Portugal?

The cheapest month to fly to Portugal from Boise is in November. Flight prices, which tend to average around $642, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Portugal from Boise during February instead. Flights to Portugal in February, while not as cheap as those in November, still average around $684.

Cheap Boise to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Portugal

Fastest flight time

14h 42m

Direct flights

None
The fastest flight from Boise to Portugal takes 14h 42m
There are no direct flights from Boise to Portugal. There are no popular flight routes from Boise to Portugal.
Search flight deals

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Portugal?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Portugal are updated daily.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Portugal?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Portugal?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Boise to Portugal

Compare and see reviews for airlines that fly from Boise to Portugal with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $549Free CancellationRating
7.9
8,087 reviews
Search Delta flights
United AirlinesPriceFrom $601Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
Air CanadaPriceFrom $602Free CancellationRating
7.1
10,646 reviews
Search Air Canada flights
American AirlinesPriceFrom $621Free CancellationRating
7.2
11,173 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Portugal?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boise to Portugal. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boise to Portugal with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Portugal from Boise with this policy.

How can momondo help me find flights from Boise to Portugal?

momondo helps you find the best flight between Boise and Portugal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Portugal, momondo offers a useful price alert feature which will track prices for flights to Portugal from Boise and alert you when they change.

An easier way to manage your Portugal trip

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