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Cheap flights from Las Vegas to Portugal from $272

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Portugal departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Las Vegas to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:30 am - 8:10 am
LAS
-
LIS
23h 40m
2 stops
United Airlines Logo
11:20 am - 9:40 am
LIS
-
LAS
30h 20m
2 stops
$452United Airlines
Sun, Feb 1 - Tue, Feb 17
British Airways Logo
3:55 pm - 10:05 am
LAS
-
LIS
34h 10m
2 stops
British Airways Logo
6:45 pm - 8:00 pm
LIS
-
LAS
33h 15m
1 stop
$455British Airways
Tue, Apr 14 - Mon, Apr 20
United Airlines Logo
8:41 am - 10:15 am
LAS
-
LIS
17h 34m
1 stop
United Airlines Logo
10:15 am - 8:15 pm
LIS
-
LAS
17h 00m
1 stop
$457United Airlines
Wed, Mar 4 - Tue, Mar 10
British Airways Logo
8:20 am - 2:30 pm
LAS
-
LIS
22h 10m
2 stops
British Airways Logo
5:10 pm - 5:22 pm
LIS
-
LAS
32h 12m
2 stops
$458British Airways
Tue, Apr 14 - Mon, Apr 20
United Airlines Logo
8:41 am - 10:15 am
LAS
-
LIS
17h 34m
1 stop
United Airlines Logo
10:15 am - 12:58 am
LIS
-
LAS
21h 43m
2 stops
$462United Airlines
Wed, Mar 4 - Tue, Mar 10
British Airways Logo
9:22 am - 2:10 pm
LAS
-
LIS
20h 48m
2 stops
British Airways Logo
6:45 pm - 8:00 pm
LIS
-
LAS
33h 15m
1 stop
$464British Airways
Wed, Apr 15 - Mon, Apr 20
United Airlines Logo
9:56 am - 8:10 am
LAS
-
LIS
14h 14m
1 stop
United Airlines Logo
10:15 am - 8:12 pm
LIS
-
LAS
17h 57m
1 stop
$472United Airlines
Mon, Feb 2 - Tue, Feb 17
SWISS Logo
7:00 pm - 11:25 pm
LAS
-
LIS
20h 25m
1 stop
SWISS Logo
12:05 pm - 4:25 pm
LIS
-
LAS
36h 20m
1 stop
$474SWISS
Tue, Apr 14 - Mon, Apr 20
KLM Logo
1:20 pm - 9:35 am
LAS
-
FNC
37h 15m
2 stops
KLM Logo
10:25 am - 3:15 pm
FNC
-
LAS
35h 50m
1 stop
$492KLM
Mon, Mar 9 - Mon, Mar 16
KLM Logo
11:38 am - 9:35 am
LAS
-
FNC
38h 57m
2 stops
KLM Logo
10:25 am - 7:37 pm
FNC
-
LAS
40h 12m
2 stops
$498KLM
Mon, Mar 9 - Mon, Mar 16

British Airways flights from Las Vegas to Portugal

Our best British Airways deals on Las Vegas to Portugal flight tickets
British Airways
Apr 14
LAS3:55 pmLas Vegas Harry Reid Intl
34h 10m
2 stops
LIS10:05 amLisbon Humberto Delgado
Apr 20
LIS6:45 pmLisbon Humberto Delgado
33h 15m
1 stop
LAS8:00 pmLas Vegas Harry Reid Intl
$455
British Airways
Apr 14
LAS8:20 amLas Vegas Harry Reid Intl
22h 10m
2 stops
LIS2:30 pmLisbon Humberto Delgado
Apr 20
LIS5:10 pmLisbon Humberto Delgado
32h 12m
2 stops
LAS5:22 pmLas Vegas Harry Reid Intl
$458
British Airways
Apr 15
LAS9:22 amLas Vegas Harry Reid Intl
20h 48m
2 stops
LIS2:10 pmLisbon Humberto Delgado
Apr 20
LIS6:45 pmLisbon Humberto Delgado
33h 15m
1 stop
LAS8:00 pmLas Vegas Harry Reid Intl
$464

Lufthansa flights from Las Vegas to Portugal

Our best Lufthansa deals on Las Vegas to Portugal flight tickets
Lufthansa
Apr 23
LAS10:40 pmLas Vegas Harry Reid Intl
25h 40m
1 stop
LIS8:20 amLisbon Humberto Delgado
May 7
LIS1:00 pmLisbon Humberto Delgado
30h 04m
1 stop
LAS11:04 amLas Vegas Harry Reid Intl
$554
Lufthansa
Mar 25
LAS2:50 pmLas Vegas Harry Reid Intl
17h 00m
1 stop
LIS2:50 pmLisbon Humberto Delgado
Apr 1
LIS7:25 amLisbon Humberto Delgado
19h 16m
2 stops
LAS6:41 pmLas Vegas Harry Reid Intl
$574
Lufthansa
Mar 25
LAS2:50 pmLas Vegas Harry Reid Intl
17h 00m
1 stop
LIS2:50 pmLisbon Humberto Delgado
Apr 8
LIS7:25 amLisbon Humberto Delgado
20h 21m
2 stops
LAS7:46 pmLas Vegas Harry Reid Intl
$630

momondo Fare Finder

 
Customize your flight search to find flights from Las Vegas 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 January 18, 2026.
Use the filters below to find and compare flights from Las Vegas to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Sun 2/1

12:30 am-8:10 am

2 stops23h 40m

Lisbon Humberto Delgado

Tue 2/17

11:20 am-9:40 am

2 stops30h 20m

$452

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Tue 4/14

3:55 pm-10:05 am

2 stops34h 10m

Lisbon Humberto Delgado

Mon 4/20

6:45 pm-8:00 pm

1 stop33h 15m

$455

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Wed 3/4

8:41 am-10:15 am

1 stop17h 34m

Lisbon Humberto Delgado

Tue 3/10

10:15 am-8:15 pm

1 stop17h 00m

$457

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Tue 4/14

8:20 am-2:30 pm

2 stops22h 10m

Lisbon Humberto Delgado

Mon 4/20

5:10 pm-5:22 pm

2 stops32h 12m

$458

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Wed 3/4

8:41 am-10:15 am

1 stop17h 34m

Lisbon Humberto Delgado

Tue 3/10

10:15 am-12:58 am

2 stops21h 43m

$462

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Wed 4/15

9:22 am-2:10 pm

2 stops20h 48m

Lisbon Humberto Delgado

Mon 4/20

6:45 pm-8:00 pm

1 stop33h 15m

$464

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Mon 2/2

9:56 am-8:10 am

1 stop14h 14m

Lisbon Humberto Delgado

Tue 2/17

10:15 am-8:12 pm

1 stop17h 57m

$472

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Tue 4/14

7:00 pm-11:25 pm

1 stop20h 25m

Lisbon Humberto Delgado

Mon 4/20

12:05 pm-4:25 pm

1 stop36h 20m

$474

Las VegasFunchal

LAS - FNC

LASFNC

Las Vegas Harry Reid Intl

Mon 3/9

1:20 pm-9:35 am

2 stops37h 15m

Funchal Madeira

Mon 3/16

10:25 am-3:15 pm

1 stop35h 50m

$492

Las VegasFunchal

LAS - FNC

LASFNC

Las Vegas Harry Reid Intl

Mon 3/9

11:38 am-9:35 am

2 stops38h 57m

Funchal Madeira

Mon 3/16

10:25 am-7:37 pm

2 stops40h 12m

$498

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 Las Vegas 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 Las Vegas is in December. Flight prices, which tend to average around $705, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of December, then book flights to Portugal from Las Vegas during November instead. Flights to Portugal in November, while not as cheap as those in December, still average around $752.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $950 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Las Vegas for as low as $680 on momondo.

Can stopping save me money on Las Vegas to Portugal flights?

You could potentially save up to 37% on your flight if you consider stops on a Las Vegas to Portugal flight.

Cheap Las Vegas to Portugal flight deals and tips

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

Fastest flight time

14h 14m

Direct flights

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

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Portugal?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Portugal are refreshed on a daily basis.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Portugal?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl 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 Las Vegas Harry Reid Intl Airport to Portugal.

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

    The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Las Vegas to Portugal

Compare and see reviews for airlines that fly from Las Vegas to Portugal with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $504Free CancellationRating
7.9
8,075 reviews
Search Delta flights
British AirwaysPriceFrom $505Free CancellationRating
6.7
7,689 reviews
Search British Airways flights
Air CanadaPriceFrom $576Free CancellationRating
7.1
10,635 reviews
Search Air Canada flights
United AirlinesPriceFrom $594Free CancellationRating
7.4
9,176 reviews
Search United Airlines flights
Air TransatPriceFrom $613Free CancellationRating
7.7
497 reviews
Search Air Transat flights
Porter AirlinesPriceFrom $645Free CancellationRating
8.0
411 reviews
Search Porter Airlines flights
American AirlinesPriceFrom $925Free CancellationRating
7.2
11,159 reviews
Search American Airlines flights

Why use momondo?

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

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

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

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

How can momondo help me find flights from Las Vegas to Portugal?

Once you have performed a search for Las Vegas to Portugal 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 Las Vegas to Portugal right now. Can momondo alert me if prices change?

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

An easier way to manage your Portugal trip

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Find better results for your trip to Portugal

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