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Cheap flights from Portugal to Las Vegas from $466

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 12/1. 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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Find the cheapest flights from Portugal to Las Vegas

Recent round-trip flight deals from Portugal to Las Vegas

Air Transat Logo
8:50 am - 10:02 pmOPO-LAS
21h 12m1 stop
Air Transat Logo
3:45 pm - 7:05 amLAS-OPO
31h 20m1 stop
$681Air Transat
Find Deal
Thu, Nov 13 - Thu, Nov 27
Air Transat Logo
8:35 am - 11:42 amLIS-LAS
35h 07m1 stop
Air Transat Logo
11:05 pm - 6:45 amLAS-LIS
23h 40m1 stop
$694Air Transat
Find Deal
Sun, Jan 11 - Fri, Jan 23
British Airways Logo
11:05 am - 9:34 pmLIS-LAS
18h 29m1 stop
British Airways Logo
2:05 pm - 2:50 pmLAS-LIS
16h 45m2 stops
$729British Airways
Find Deal
Sun, Jan 11 - Fri, Jan 23
British Airways Logo
11:05 am - 9:34 pmLIS-LAS
18h 29m1 stop
British Airways Logo
6:35 pm - 5:55 pmLAS-LIS
15h 20m1 stop
$732British Airways
Find Deal
Sun, Jan 11 - Fri, Jan 23
American Airlines Logo
11:15 am - 9:35 pmLIS-LAS
18h 20m2 stops
American Airlines Logo
8:55 pm - 9:45 pmLAS-LIS
16h 50m1 stop
$755American Airlines
Find Deal
Wed, Feb 18 - Sun, Feb 22
American Airlines Logo
11:05 am - 8:31 amLIS-LAS
29h 26m2 stops
American Airlines Logo
12:23 pm - 2:45 pmLAS-LIS
18h 22m2 stops
$756American Airlines
Find Deal
Mon, Feb 9 - Thu, Feb 19
Delta Logo
5:00 am - 2:15 pmLIS-LAS
17h 15m1 stop
Delta Logo
10:51 am - 3:10 pmLAS-LIS
20h 19m2 stops
$762Delta
Find Deal
Thu, Nov 6 - Sat, Nov 22
Delta Logo
11:25 am - 12:13 amLIS-LAS
20h 48m2 stops
Delta Logo
6:10 am - 11:20 amLAS-LIS
21h 10m2 stops
$767Delta
Find Deal
Sun, Jan 11 - Fri, Jan 23
United Airlines Logo
6:00 am - 2:40 pmOPO-LAS
16h 40m1 stop
United Airlines Logo
8:00 am - 9:30 amLAS-OPO
17h 30m2 stops
$880United Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 16
United Airlines Logo
12:35 pm - 9:15 pmOPO-LAS
16h 40m1 stop
United Airlines Logo
10:00 am - 9:30 amLAS-OPO
15h 30m1 stop
$890United Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12

KLM flights from Portugal to Las Vegas

Our best KLM deals on Portugal to Las Vegas flight tickets
KLM
Feb 10
LIS5:00 amLisbon Humberto Delgado
17h 15m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Feb 19
LAS9:25 amLas Vegas Harry Reid Intl
15h 30m
1 stop
LIS8:55 amLisbon Humberto Delgado
$766
Find similar
KLM
Oct 7
LIS7:30 pmLisbon Humberto Delgado
31h 05m
1 stop
LAS6:35 pmLas Vegas Harry Reid Intl
Oct 24
LAS10:34 amLas Vegas Harry Reid Intl
16h 26m
1 stop
LIS11:00 amLisbon Humberto Delgado
$823
Find similar
KLM
Feb 3
OPO6:05 amPorto
16h 10m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Feb 6
LAS9:35 amLas Vegas Harry Reid Intl
16h 55m
2 stops
OPO10:30 amPorto
$1,011
Find similar

Delta flights from Portugal to Las Vegas

Our best Delta deals on Portugal to Las Vegas flight tickets
Delta
Nov 6
LIS5:00 amLisbon Humberto Delgado
17h 15m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Nov 22
LAS10:51 amLas Vegas Harry Reid Intl
20h 19m
2 stops
LIS3:10 pmLisbon Humberto Delgado
$762
Find similar
Delta
Jan 11
LIS11:25 amLisbon Humberto Delgado
20h 48m
2 stops
LAS12:13 amLas Vegas Harry Reid Intl
Jan 23
LAS6:10 amLas Vegas Harry Reid Intl
21h 10m
2 stops
LIS11:20 amLisbon Humberto Delgado
$767
Find similar
Delta
Oct 31
LIS5:00 amLisbon Humberto Delgado
24h 30m
2 stops
LAS10:30 pmLas Vegas Harry Reid Intl
Nov 15
LAS10:22 amLas Vegas Harry Reid Intl
16h 58m
2 stops
LIS11:20 amLisbon Humberto Delgado
$768
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 September 25, 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

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 11/13

8:50 am-10:02 pm

1 stop21h 12m

Las Vegas Harry Reid Intl

Thu 11/27

3:45 pm-7:05 am

1 stop31h 20m

$681

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 1/11

8:35 am-11:42 am

1 stop35h 07m

Las Vegas Harry Reid Intl

Fri 1/23

11:05 pm-6:45 am

1 stop23h 40m

$694

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 1/11

11:05 am-9:34 pm

1 stop18h 29m

Las Vegas Harry Reid Intl

Fri 1/23

2:05 pm-2:50 pm

2 stops16h 45m

$729

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 1/11

11:05 am-9:34 pm

1 stop18h 29m

Las Vegas Harry Reid Intl

Fri 1/23

6:35 pm-5:55 pm

1 stop15h 20m

$732

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Wed 2/18

11:15 am-9:35 pm

2 stops18h 20m

Las Vegas Harry Reid Intl

Sun 2/22

8:55 pm-9:45 pm

1 stop16h 50m

$755

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 2/9

11:05 am-8:31 am

2 stops29h 26m

Las Vegas Harry Reid Intl

Thu 2/19

12:23 pm-2:45 pm

2 stops18h 22m

$756

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Thu 11/6

5:00 am-2:15 pm

1 stop17h 15m

Las Vegas Harry Reid Intl

Sat 11/22

10:51 am-3:10 pm

2 stops20h 19m

$762

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 1/11

11:25 am-12:13 am

2 stops20h 48m

Las Vegas Harry Reid Intl

Fri 1/23

6:10 am-11:20 am

2 stops21h 10m

$767

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 11/9

6:00 am-2:40 pm

1 stop16h 40m

Las Vegas Harry Reid Intl

Sun 11/16

8:00 am-9:30 am

2 stops17h 30m

$880

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 11/5

12:35 pm-9:15 pm

1 stop16h 40m

Las Vegas Harry Reid Intl

Wed 11/12

10:00 am-9:30 am

1 stop15h 30m

$890

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 February is, on average, the cheapest month to fly to Las Vegas from Portugal, with most prices found around $754. The month of September is another great option to travel to Las Vegas, with average flight prices from Portugal averaging around $772.

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 $926 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 $832 on momondo.

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

You could potentially save up to 36% 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

Direct flights

None
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 $706Free CancellationRating
6.7
7,399 reviews
Search British Airways flights
DeltaPriceFrom $729Free CancellationRating
7.9
7,973 reviews
Search Delta flights
United AirlinesPriceFrom $790Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
American AirlinesPriceFrom $820Free CancellationRating
7.2
10,000 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
Winchester
Sunrise Manor
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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