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Cheap flights from Portugal to Las Vegas from $339

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 4/24. 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
8:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:45 pm - 8:05 am
LAS
-
OPO
24h 20m
1 stop
$581Air Transat
Thu, Mar 26 - Thu, Apr 9
Air Transat Logo
8:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:45 pm - 8:05 am
LAS
-
OPO
24h 20m
1 stop
$586Air Transat
Thu, Mar 26 - Thu, Apr 9
Air Transat Logo
8:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:45 pm - 8:05 am
LAS
-
OPO
24h 20m
1 stop
$588Air Transat
Thu, Mar 26 - Thu, Apr 9
Air Transat Logo
8:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:45 pm - 8:05 am
LAS
-
OPO
24h 20m
1 stop
$590Air Transat
Thu, Mar 26 - Thu, Apr 9
Air Transat Logo
8:50 am - 11:42 am
OPO
-
LAS
33h 52m
1 stop
Air Transat Logo
11:45 pm - 8:05 am
LAS
-
OPO
24h 20m
1 stop
$648Air Transat
Thu, Mar 26 - Thu, Apr 9
Air Transat Logo
8:35 am - 9:02 pm
LIS
-
LAS
20h 27m
1 stop
Air Transat Logo
12:40 pm - 6:45 am
LAS
-
LIS
35h 05m
1 stop
$652Air Transat
Sun, Mar 8 - Mon, Mar 23
Air Transat Logo
8:35 am - 9:02 pm
LIS
-
LAS
20h 27m
1 stop
Air Transat Logo
12:40 pm - 6:45 am
LAS
-
LIS
35h 05m
1 stop
$656Air Transat
Sun, Mar 8 - Mon, Mar 23
Air Transat Logo
8:35 am - 9:02 pm
LIS
-
LAS
20h 27m
1 stop
Air Transat Logo
12:40 pm - 6:45 am
LAS
-
LIS
35h 05m
1 stop
$663Air Transat
Sun, Mar 8 - Mon, Mar 23
Multiple Airlines Logo
10:40 am - 10:12 pm
LIS
-
LAS
18h 32m
1 stop
Multiple Airlines Logo
12:40 pm - 10:55 am
LAS
-
LIS
15h 15m
1 stop
$691Multiple Airlines
Sun, Mar 8 - Mon, Mar 23
KLM Logo
5:00 am - 6:35 pm
OPO
-
LAS
21h 35m
1 stop
KLM Logo
8:25 pm - 6:20 pm
LAS
-
OPO
13h 55m
1 stop
$867KLM
Mon, May 4 - Wed, May 13

KLM flights from Portugal to Las Vegas

Our best KLM deals on Portugal to Las Vegas flight tickets
KLM
May 4
OPO5:00 amPorto
21h 35m
1 stop
LAS6:35 pmLas Vegas Harry Reid Intl
May 13
LAS8:25 pmLas Vegas Harry Reid Intl
13h 55m
1 stop
OPO6:20 pmPorto
$867
KLM
May 4
OPO7:00 pmPorto
31h 35m
1 stop
LAS6:35 pmLas Vegas Harry Reid Intl
May 13
LAS8:25 pmLas Vegas Harry Reid Intl
30h 15m
1 stop
OPO10:40 amPorto
$869
KLM
May 4
OPO5:00 amPorto
21h 35m
1 stop
LAS6:35 pmLas Vegas Harry Reid Intl
May 13
LAS8:25 pmLas Vegas Harry Reid Intl
13h 55m
1 stop
OPO6:20 pmPorto
$871

Delta flights from Portugal to Las Vegas

Our best Delta deals on Portugal to Las Vegas flight tickets
Delta
May 4
OPO5:00 amPorto
22h 52m
2 stops
LAS7:52 pmLas Vegas Harry Reid Intl
May 13
LAS8:25 pmLas Vegas Harry Reid Intl
17h 50m
1 stop
OPO10:15 pmPorto
$870
Delta
May 4
OPO5:00 amPorto
22h 52m
2 stops
LAS7:52 pmLas Vegas Harry Reid Intl
May 13
LAS1:30 pmLas Vegas Harry Reid Intl
20h 50m
2 stops
OPO6:20 pmPorto
$874
Delta
May 4
OPO5:00 amPorto
22h 52m
2 stops
LAS7:52 pmLas Vegas Harry Reid Intl
May 13
LAS1:30 pmLas Vegas Harry Reid Intl
20h 50m
2 stops
OPO6:20 pmPorto
$875

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 February 12, 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

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 3/26

8:50 am-10:42 pm

1 stop20h 52m

Las Vegas Harry Reid Intl

Thu 4/9

11:45 pm-8:05 am

1 stop24h 20m

$581

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 3/26

8:50 am-10:42 pm

1 stop20h 52m

Las Vegas Harry Reid Intl

Thu 4/9

11:45 pm-8:05 am

1 stop24h 20m

$586

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 3/26

8:50 am-10:42 pm

1 stop20h 52m

Las Vegas Harry Reid Intl

Thu 4/9

11:45 pm-8:05 am

1 stop24h 20m

$588

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 3/26

8:50 am-10:42 pm

1 stop20h 52m

Las Vegas Harry Reid Intl

Thu 4/9

11:45 pm-8:05 am

1 stop24h 20m

$590

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 3/26

8:50 am-11:42 am

1 stop33h 52m

Las Vegas Harry Reid Intl

Thu 4/9

11:45 pm-8:05 am

1 stop24h 20m

$648

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 3/8

8:35 am-9:02 pm

1 stop20h 27m

Las Vegas Harry Reid Intl

Mon 3/23

12:40 pm-6:45 am

1 stop35h 05m

$652

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 3/8

8:35 am-9:02 pm

1 stop20h 27m

Las Vegas Harry Reid Intl

Mon 3/23

12:40 pm-6:45 am

1 stop35h 05m

$656

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 3/8

8:35 am-9:02 pm

1 stop20h 27m

Las Vegas Harry Reid Intl

Mon 3/23

12:40 pm-6:45 am

1 stop35h 05m

$663

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 3/8

10:40 am-10:12 pm

1 stop18h 32m

Las Vegas Harry Reid Intl

Mon 3/23

12:40 pm-10:55 am

1 stop15h 15m

$691

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

5:00 am-6:35 pm

1 stop21h 35m

Las Vegas Harry Reid Intl

Wed 5/13

8:25 pm-6:20 pm

1 stop13h 55m

$867

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 $775. The month of February is another great option to travel to Las Vegas, with average flight prices from Portugal averaging around $885.

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 $960 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 $741 on momondo.

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

You could potentially save up to 33% 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

20h 27m

Direct flights

None
The fastest flight from Portugal to Las Vegas takes 20h 27m
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
DeltaPriceFrom $714Free CancellationRating
7.9
8,177 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
Henderson
Paradise
Mesquite
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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