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Cheap flights from Portugal to Las Vegas from $409

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Las Vegas departing on 2/8. 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 Portugal to Las Vegas

Recent round-trip flight deals from Portugal to Las Vegas

Enter your travel dates to find the best prices.
Air Transat Logo
8:35 am - 10:02 pm
LIS
-
LAS
21h 27m1 stop
Air Transat Logo
11:05 pm - 6:45 am
LAS
-
LIS
23h 40m1 stop
$609Air Transat
Sun, Feb 8 - Mon, Feb 23
Air Transat Logo
8:35 am - 10:02 pm
LIS
-
LAS
21h 27m1 stop
Air Transat Logo
11:05 pm - 6:45 am
LAS
-
LIS
23h 40m1 stop
$610Air Transat
Sun, Feb 8 - Mon, Feb 23
Multiple Airlines Logo
7:00 am - 10:02 pm
LIS
-
LAS
23h 02m2 stops
Multiple Airlines Logo
11:05 pm - 2:50 pm
LAS
-
LIS
31h 45m2 stops
$707Multiple Airlines
Sat, Feb 7 - Sat, Feb 14
Multiple Airlines Logo
8:35 am - 10:12 pm
LIS
-
LAS
21h 37m1 stop
Multiple Airlines Logo
7:05 pm - 2:50 pm
LAS
-
LIS
59h 45m2 stops
$716Multiple Airlines
Sun, Feb 8 - Mon, Feb 23
British Airways Logo
11:05 am - 9:59 pm
LIS
-
LAS
18h 54m1 stop
British Airways Logo
6:35 pm - 9:45 pm
LAS
-
LIS
19h 10m1 stop
$724British Airways
Sun, Feb 8 - Sun, Feb 15
British Airways Logo
7:05 am - 7:45 pm
LIS
-
LAS
20h 40m2 stops
British Airways Logo
8:55 pm - 9:45 pm
LAS
-
LIS
16h 50m1 stop
$734British Airways
Sun, Feb 8 - Sun, Feb 15
American Airlines Logo
8:20 am - 9:48 pm
OPO
-
LAS
21h 28m2 stops
American Airlines Logo
8:00 am - 4:00 pm
LAS
-
OPO
24h 00m2 stops
$774American Airlines
Fri, Jan 16 - Tue, Jan 20
American Airlines Logo
8:20 am - 11:26 pm
OPO
-
LAS
23h 06m2 stops
American Airlines Logo
9:20 am - 11:45 am
LAS
-
OPO
18h 25m2 stops
$791American Airlines
Mon, May 4 - Wed, May 13
Delta Logo
11:45 am - 12:07 am
OPO
-
LAS
20h 22m2 stops
Delta Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m1 stop
$815Delta
Mon, May 4 - Wed, May 13
Delta Logo
5:00 am - 2:15 pm
OPO
-
LAS
17h 15m1 stop
Delta Logo
4:05 pm - 3:25 pm
LAS
-
OPO
15h 20m1 stop
$816Delta
Thu, Jan 22 - Thu, Feb 5

Iberia flights from Portugal to Las Vegas

Our best Iberia deals on Portugal to Las Vegas flight tickets
Iberia
Feb 7
LIS6:45 pmLisbon Humberto Delgado
23h 07m
2 stops
LAS9:52 amLas Vegas Harry Reid Intl
Feb 14
LAS7:00 amLas Vegas Harry Reid Intl
18h 05m
1 stop
LIS9:05 amLisbon Humberto Delgado
$736
Find similar
Iberia
Jan 19
LIS8:45 pmLisbon Humberto Delgado
33h 03m
2 stops
LAS9:48 pmLas Vegas Harry Reid Intl
Jan 30
LAS3:20 pmLas Vegas Harry Reid Intl
16h 45m
2 stops
LIS4:05 pmLisbon Humberto Delgado
$753
Find similar

United Airlines flights from Portugal to Las Vegas

Our best United Airlines deals on Portugal to Las Vegas flight tickets
United Airlines
Jan 11
LIS10:15 amLisbon Humberto Delgado
17h 57m
1 stop
LAS8:12 pmLas Vegas Harry Reid Intl
Jan 16
LAS9:56 amLas Vegas Harry Reid Intl
14h 14m
1 stop
LIS8:10 amLisbon Humberto Delgado
$1,022
Find similar
United Airlines
Jan 11
LIS10:15 amLisbon Humberto Delgado
18h 17m
2 stops
LAS8:32 pmLas Vegas Harry Reid Intl
Jan 16
LAS9:00 amLas Vegas Harry Reid Intl
15h 10m
2 stops
LIS8:10 amLisbon Humberto Delgado
$1,023
Find similar
United Airlines
Feb 15
OPO6:00 amPorto
16h 40m
1 stop
LAS2:40 pmLas Vegas Harry Reid Intl
Feb 28
LAS12:29 pmLas Vegas Harry Reid Intl
13h 01m
1 stop
OPO9:30 amPorto
$1,402
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to Las Vegas 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 December 26, 2025.
Use the filters below to find and compare flights from Portugal to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 2/8

8:35 am-10:02 pm

1 stop21h 27m

Las Vegas Harry Reid Intl

Mon 2/23

11:05 pm-6:45 am

1 stop23h 40m

$609

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 2/8

8:35 am-10:02 pm

1 stop21h 27m

Las Vegas Harry Reid Intl

Mon 2/23

11:05 pm-6:45 am

1 stop23h 40m

$610

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sat 2/7

7:00 am-10:02 pm

2 stops23h 02m

Las Vegas Harry Reid Intl

Sat 2/14

11:05 pm-2:50 pm

2 stops31h 45m

$707

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 2/8

8:35 am-10:12 pm

1 stop21h 37m

Las Vegas Harry Reid Intl

Mon 2/23

7:05 pm-2:50 pm

2 stops59h 45m

$716

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 2/8

11:05 am-9:59 pm

1 stop18h 54m

Las Vegas Harry Reid Intl

Sun 2/15

6:35 pm-9:45 pm

1 stop19h 10m

$724

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 2/8

7:05 am-7:45 pm

2 stops20h 40m

Las Vegas Harry Reid Intl

Sun 2/15

8:55 pm-9:45 pm

1 stop16h 50m

$734

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 1/16

8:20 am-9:48 pm

2 stops21h 28m

Las Vegas Harry Reid Intl

Tue 1/20

8:00 am-4:00 pm

2 stops24h 00m

$774

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

8:20 am-11:26 pm

2 stops23h 06m

Las Vegas Harry Reid Intl

Wed 5/13

9:20 am-11:45 am

2 stops18h 25m

$791

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

11:45 am-12:07 am

2 stops20h 22m

Las Vegas Harry Reid Intl

Wed 5/13

5:50 pm-10:00 pm

1 stop20h 10m

$815

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/22

5:00 am-2:15 pm

1 stop17h 15m

Las Vegas Harry Reid Intl

Thu 2/5

4:05 pm-3:25 pm

1 stop15h 20m

$816

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 Las Vegas from

How to get the cheapest flight ticket from Portugal to Las Vegas

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 Las Vegas?

The month of September is, on average, the cheapest month to fly to Las Vegas from Portugal, with most prices found around $771. The month of February is another great option to travel to Las Vegas, with average flight prices from Portugal averaging around $808.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Tuesday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $808. Flights from Portugal to Las Vegas on a Sunday will generally be more expensive and average around $1,105. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

How far in advance should I book a flight to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from Portugal when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $962 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Portugal for as low as $781 on momondo.

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

You could potentially save up to 40% on your flight if you consider stops on a Portugal to Las Vegas flight.

Cheap Portugal to Las Vegas flight deals and tips

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

Fastest flight time

18h 26m

Direct flights

None
The fastest flight from Portugal to Las Vegas takes 18h 26m
There are no direct flights from Portugal to Las Vegas. There are no popular flight routes from Portugal to Las Vegas.
Search flight deals

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

    Prices for flights from Portugal to Las Vegas Harry Reid Intl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portugal to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The necessary travel and health documents for your Las Vegas Harry Reid Intl Airport 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 Portugal to Las Vegas

Compare and see reviews for airlines that fly from Portugal to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $689Free CancellationRating
6.7
7,617 reviews
Search British Airways flights
DeltaPriceFrom $714Free CancellationRating
7.9
8,014 reviews
Search Delta flights
American AirlinesPriceFrom $733Free CancellationRating
7.2
11,064 reviews
Search American Airlines flights

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Henderson
Mesquite
Paradise
North Las Vegas
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Sunrise Manor
Winchester
Needles

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portugal to Las Vegas for you.

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

Yes. All flights to Las Vegas from Portugal on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Portugal to Las Vegas flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

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