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Cheap flights from Portugal to Las Vegas from $500

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 10/20. 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

Enter your travel dates to find the best prices.
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
11:15 pm - 11:55 am
LAS
-
OPO
28h 40m
1 stop
$648Air Transat
Mon, Jun 22 - Tue, Jul 7
Air Transat Logo
8:35 am - 12:42 pm
LIS
-
LAS
35h 07m
1 stop
Air Transat Logo
12:40 pm - 6:45 am
LAS
-
LIS
34h 05m
1 stop
$701Air Transat
Sun, Nov 1 - Wed, Nov 4
Air Transat Logo
8:35 am - 12:42 pm
LIS
-
LAS
35h 07m
1 stop
Air Transat Logo
11:05 pm - 6:45 am
LAS
-
LIS
23h 40m
1 stop
$724Air Transat
Sun, Nov 1 - Tue, Nov 10
WestJet Logo
6:10 am - 9:40 pm
LIS
-
LAS
23h 30m
2 stops
WestJet Logo
4:35 pm - 10:35 pm
LAS
-
LIS
22h 00m
2 stops
$783WestJet
Sun, Jun 14 - Thu, Jun 18
WestJet Logo
6:15 am - 12:30 pm
LIS
-
LAS
38h 15m
2 stops
WestJet Logo
4:35 pm - 9:45 pm
LAS
-
LIS
21h 10m
2 stops
$818WestJet
Mon, Jun 8 - Sun, Jun 21
Multiple Airlines Logo
10:55 am - 5:15 pm
LIS
-
LAS
38h 20m
2 stops
Multiple Airlines Logo
8:30 am - 5:55 am
LAS
-
LIS
37h 25m
3 stops
$839Multiple Airlines
Fri, Jun 5 - Fri, Jun 19
Multiple Airlines Logo
1:30 pm - 8:47 am
OPO
-
LAS
27h 17m
1 stop
Multiple Airlines Logo
1:43 pm - 6:50 am
LAS
-
OPO
33h 07m
2 stops
$900Multiple Airlines
Fri, Jul 10 - Thu, Jul 23
KLM Logo
7:10 pm - 6:35 pm
OPO
-
LAS
31h 25m
1 stop
KLM Logo
6:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$952KLM
Thu, Oct 22 - Mon, Oct 26
Delta Logo
5:00 am - 6:46 pm
OPO
-
LAS
21h 46m
2 stops
Delta Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$957Delta
Sun, Sep 20 - Sat, Sep 26
Delta Logo
5:00 am - 6:46 pm
OPO
-
LAS
21h 46m
2 stops
Delta Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$958Delta
Sun, Sep 20 - Sat, Sep 26

Air Transat flights from Portugal to Las Vegas

Our best Air Transat deals on Portugal to Las Vegas flight tickets
Air Transat
Jun 22
OPO1:30 pmPorto
30h 12m
1 stop
LAS11:42 amLas Vegas Harry Reid Intl
Jul 7
LAS11:15 pmLas Vegas Harry Reid Intl
28h 40m
1 stop
OPO11:55 amPorto
$648
Air Transat
Nov 1
LIS8:35 amLisbon Humberto Delgado
35h 07m
1 stop
LAS12:42 pmLas Vegas Harry Reid Intl
Nov 4
LAS12:40 pmLas Vegas Harry Reid Intl
34h 05m
1 stop
LIS6:45 amLisbon Humberto Delgado
$701
Air Transat
Nov 1
LIS8:35 amLisbon Humberto Delgado
35h 07m
1 stop
LAS12:42 pmLas Vegas Harry Reid Intl
Nov 10
LAS11:05 pmLas Vegas Harry Reid Intl
23h 40m
1 stop
LIS6:45 amLisbon Humberto Delgado
$724

United Airlines flights from Portugal to Las Vegas

Our best United Airlines deals on Portugal to Las Vegas flight tickets
United Airlines
Jun 12
OPO6:00 amPorto
26h 21m
2 stops
LAS12:21 amLas Vegas Harry Reid Intl
Jun 14
LAS9:56 amLas Vegas Harry Reid Intl
12h 59m
1 stop
OPO6:55 amPorto
$988
United Airlines
Jun 1
LIS7:25 amLisbon Humberto Delgado
16h 55m
1 stop
LAS4:20 pmLas Vegas Harry Reid Intl
Jun 7
LAS6:00 amLas Vegas Harry Reid Intl
18h 20m
2 stops
LIS8:20 amLisbon Humberto Delgado
$990
United Airlines
Jun 1
LIS5:05 amLisbon Humberto Delgado
20h 27m
2 stops
LAS5:32 pmLas Vegas Harry Reid Intl
Jun 6
LAS12:36 amLas Vegas Harry Reid Intl
23h 44m
2 stops
LIS8:20 amLisbon Humberto Delgado
$996

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 May 19, 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

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 6/22

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Tue 7/7

11:15 pm-11:55 am

1 stop28h 40m

$648

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 11/1

8:35 am-12:42 pm

1 stop35h 07m

Las Vegas Harry Reid Intl

Wed 11/4

12:40 pm-6:45 am

1 stop34h 05m

$701

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 11/1

8:35 am-12:42 pm

1 stop35h 07m

Las Vegas Harry Reid Intl

Tue 11/10

11:05 pm-6:45 am

1 stop23h 40m

$724

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 6/14

6:10 am-9:40 pm

2 stops23h 30m

Las Vegas Harry Reid Intl

Thu 6/18

4:35 pm-10:35 pm

2 stops22h 00m

$783

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 6/8

6:15 am-12:30 pm

2 stops38h 15m

Las Vegas Harry Reid Intl

Sun 6/21

4:35 pm-9:45 pm

2 stops21h 10m

$818

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Fri 6/5

10:55 am-5:15 pm

2 stops38h 20m

Las Vegas Harry Reid Intl

Fri 6/19

8:30 am-5:55 am

3 stops37h 25m

$839

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 7/10

1:30 pm-8:47 am

1 stop27h 17m

Las Vegas Harry Reid Intl

Thu 7/23

1:43 pm-6:50 am

2 stops33h 07m

$900

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 10/22

7:10 pm-6:35 pm

1 stop31h 25m

Las Vegas Harry Reid Intl

Mon 10/26

6:50 pm-10:00 pm

1 stop20h 10m

$952
Quickest round-trip

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 9/20

5:00 am-6:46 pm

2 stops21h 46m

Las Vegas Harry Reid Intl

Sat 9/26

5:50 pm-10:00 pm

1 stop20h 10m

$957

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 9/20

5:00 am-6:46 pm

2 stops21h 46m

Las Vegas Harry Reid Intl

Sat 9/26

5:50 pm-10:00 pm

1 stop20h 10m

$958

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 $988 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 $758 on momondo.

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

You could potentially save up to 2% 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 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
DeltaPriceFrom $748Free CancellationRating
7.9
8,455 reviews
Search Delta 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
Paradise
Henderson
North Las Vegas
Mesquite
Kingman
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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