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Cheap flights from Portugal to Las Vegas from $357

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 8/25. 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
1 adult, Economy, 0 bags

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
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
9:45 am - 11:45 am
LAS
-
OPO
18h 00m
1 stop
$677Air Transat
Fri, Jul 24 - Mon, Aug 24
Air Transat Logo
11:35 am - 10:22 pm
LIS
-
LAS
18h 47m
1 stop
Air Transat Logo
11:20 pm - 9:35 am
LAS
-
LIS
26h 15m
1 stop
$709Air Transat
Mon, Jul 20 - Tue, Aug 4
Air Transat Logo
11:35 am - 10:22 pm
LIS
-
LAS
18h 47m
1 stop
Air Transat Logo
11:20 pm - 9:35 am
LAS
-
LIS
26h 15m
1 stop
$719Air Transat
Mon, Jul 20 - Tue, Aug 4
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:55 am
LAS
-
OPO
28h 35m
1 stop
$722Air Transat
Sat, Jul 25 - Tue, Aug 25
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:55 am
LAS
-
OPO
28h 35m
1 stop
$753Air Transat
Mon, Aug 24 - Tue, Sep 8
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:55 am
LAS
-
OPO
28h 35m
1 stop
$755Air Transat
Mon, Aug 24 - Tue, Sep 8
Multiple Airlines Logo
10:25 pm - 10:22 pm
OPO
-
LAS
31h 57m
2 stops
Multiple Airlines Logo
7:20 pm - 6:30 pm
LAS
-
OPO
15h 10m
1 stop
$780Multiple Airlines
Mon, Sep 7 - Wed, Sep 30
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:55 am
LAS
-
OPO
28h 35m
1 stop
$783Air Transat
Mon, Aug 24 - Tue, Sep 8
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
9:45 am - 11:45 am
LAS
-
OPO
18h 00m
1 stop
$793Air Transat
Mon, Aug 10 - Mon, Aug 24
Multiple Airlines Logo
1:00 pm - 12:30 pm
LIS
-
LAS
31h 30m
2 stops
Multiple Airlines Logo
8:30 am - 11:05 am
LAS
-
LIS
18h 35m
2 stops
$852Multiple Airlines
Mon, Sep 14 - Sun, Sep 20

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British Airways flights from Portugal to Las Vegas

Our best British Airways deals on Portugal to Las Vegas flight tickets
British Airways
Sep 28
LIS7:10 amLisbon Humberto Delgado
20h 50m
1 stop
LAS8:00 pmLas Vegas Harry Reid Intl
Oct 8
LAS10:10 pmLas Vegas Harry Reid Intl
27h 55m
1 stop
LIS10:05 amLisbon Humberto Delgado
$1,027
British Airways
Sep 28
LIS7:10 amLisbon Humberto Delgado
20h 50m
1 stop
LAS8:00 pmLas Vegas Harry Reid Intl
Oct 8
LAS10:10 pmLas Vegas Harry Reid Intl
27h 55m
1 stop
LIS10:05 amLisbon Humberto Delgado
$1,031

Lufthansa flights from Portugal to Las Vegas

Our best Lufthansa deals on Portugal to Las Vegas flight tickets
Lufthansa
Sep 9
LIS6:45 amLisbon Humberto Delgado
17h 35m
1 stop
LAS4:20 pmLas Vegas Harry Reid Intl
Dec 17
LAS4:20 pmLas Vegas Harry Reid Intl
22h 30m
1 stop
LIS10:50 pmLisbon Humberto Delgado
$972
Lufthansa
Sep 28
LIS5:05 amLisbon Humberto Delgado
19h 15m
1 stop
LAS4:20 pmLas Vegas Harry Reid Intl
Oct 8
LAS9:47 amLas Vegas Harry Reid Intl
28h 58m
2 stops
LIS10:45 pmLisbon Humberto Delgado
$981
Lufthansa
Sep 28
LIS5:05 amLisbon Humberto Delgado
19h 15m
1 stop
LAS4:20 pmLas Vegas Harry Reid Intl
Oct 8
LAS9:47 amLas Vegas Harry Reid Intl
28h 58m
2 stops
LIS10:45 pmLisbon Humberto Delgado
$985

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 July 2, 2026.
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

Cheapest round-trip
Quickest round-trip

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 7/24

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Mon 8/24

9:45 am-11:45 am

1 stop18h 00m

$677

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 7/20

11:35 am-10:22 pm

1 stop18h 47m

Las Vegas Harry Reid Intl

Tue 8/4

11:20 pm-9:35 am

1 stop26h 15m

$709

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 7/20

11:35 am-10:22 pm

1 stop18h 47m

Las Vegas Harry Reid Intl

Tue 8/4

11:20 pm-9:35 am

1 stop26h 15m

$719

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sat 7/25

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Tue 8/25

11:20 pm-11:55 am

1 stop28h 35m

$722

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 8/24

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Tue 9/8

11:20 pm-11:55 am

1 stop28h 35m

$753

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 8/24

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Tue 9/8

11:20 pm-11:55 am

1 stop28h 35m

$755

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 9/7

10:25 pm-10:22 pm

2 stops31h 57m

Las Vegas Harry Reid Intl

Wed 9/30

7:20 pm-6:30 pm

1 stop15h 10m

$780

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 8/24

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Tue 9/8

11:20 pm-11:55 am

1 stop28h 35m

$783

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 8/10

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Mon 8/24

9:45 am-11:45 am

1 stop18h 00m

$793

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 9/14

1:00 pm-12:30 pm

2 stops31h 30m

Las Vegas Harry Reid Intl

Sun 9/20

8:30 am-11:05 am

2 stops18h 35m

$852

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 November is, on average, the cheapest month to fly to Las Vegas from Portugal, with most prices found around $235. The month of December is another great option to travel to Las Vegas, with average flight prices from Portugal averaging around $264.

How far in advance should I book a flight from Portugal 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 $1,025 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 $730 on momondo.

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

You could potentially save up to 26% 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

14h 40m

Direct flights

None
The fastest flight from Portugal to Las Vegas takes 14h 40m
There are no direct flights from Portugal to Las Vegas. There are no popular flight routes from Portugal to Las Vegas.
Search flight deals

Frequently asked questions about flying from Portugal to Las Vegas

  • 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 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.

Traveling to a place near Las Vegas?

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