Las Vegas

$398+ Cheap flights from Portugal to Las Vegas (LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — LAS
May 1 — May 81
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Cheap flight deals from Portugal to Las Vegas

Cheapest flights from Portugal to Las Vegas
Explore the most affordable flight options available from Portugal to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.

This FlightHub deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:35 am
LIS
-
LAS
1 stop18h 42m
Air Transat
Thu 10/19:45 am
LAS
-
LIS
1 stop15h 50m
Air Transat
Deal found 3/28$684
This Gotogate deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2111:35 am
LIS
-
LAS
1 stop18h 42m
Air Transat
Fri 7/2411:15 pm
LAS
-
LIS
1 stop26h 20m
Air Transat
Deal found 3/30$750
This Gotogate deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:30 pm
OPO
-
LAS
1 stop30h 12m
Air Transat
Wed 6/312:45 pm
LAS
-
OPO
1 stop15h 00m
Air Transat
Deal found 3/31$787
This Gotogate deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:30 pm
OPO
-
LAS
1 stop16h 47m
Air Transat
Thu 9/2411:15 pm
LAS
-
OPO
1 stop28h 30m
Air Transat
Deal found 3/30$863
This Ticket deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:00 am
LIS
-
LAS
1 stop21h 35m
Multiple Airlines
Mon 5/115:50 pm
LAS
-
LIS
1 stop16h 00m
Multiple Airlines
Deal found 3/29$863
This KLM deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:00 am
OPO
-
LAS
1 stop21h 35m
KLM
Sat 5/305:50 pm
LAS
-
OPO
1 stop20h 10m
KLM
Deal found 3/28$899
This KLM deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:00 pm
OPO
-
LAS
1 stop31h 35m
KLM
Wed 5/135:50 pm
LAS
-
OPO
1 stop20h 10m
KLM
Deal found 3/29$901
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:00 am
OPO
-
LAS
2 stops21h 28m
Delta
Wed 5/135:50 pm
LAS
-
OPO
1 stop20h 10m
Delta
Deal found 3/28$904
This KLM deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:45 pm
LIS
-
LAS
1 stop30h 50m
Multiple Airlines
Wed 5/135:50 pm
LAS
-
LIS
1 stop16h 00m
Multiple Airlines
Deal found 3/30$909
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:00 am
LIS
-
LAS
2 stops21h 28m
Delta
Mon 5/115:50 pm
LAS
-
LIS
1 stop16h 00m
Delta
Deal found 3/30$911
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:00 am
LIS
-
LAS
2 stops21h 28m
Delta
Wed 5/135:50 pm
LAS
-
LIS
1 stop16h 00m
Delta
Deal found 3/28$912
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2211:55 am
LIS
-
LAS
2 stops20h 28m
Delta
Mon 6/15:50 pm
LAS
-
LIS
1 stop16h 00m
Delta
Deal found 3/28$913

Find flight deals from Portugal to Las Vegas

Keep the following information in mind while searching for Portugal to Las Vegas flight deals. Data was last updated April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$684
(FlightHub)

One-way from

$398
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$915
Provider with most accurate pricing for Lisbon Humberto Delgado-Las Vegas Harry Reid Intl flight deals.
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Las Vegas Harry Reid Intl flights.
From Portugal to Las Vegas Harry Reid Intl
One-way flight from Portugal to Las Vegas Harry Reid Intl
Highest demand for flights based on searches. 0% potential increase in price ($6 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 1, 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 5/18

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Wed 6/3

12:45 pm-11:45 am

1 stop15h 00m

$840

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

5:50 pm-10:00 pm

1 stop20h 10m

$903

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 4/26

3:35 pm-6:35 pm

1 stop35h 00m

Las Vegas Harry Reid Intl

Mon 5/11

5:50 pm-5:50 pm

1 stop16h 00m

$906

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Fri 5/22

7:45 pm-6:35 pm

1 stop30h 50m

Las Vegas Harry Reid Intl

Mon 6/1

5:50 pm-5:50 pm

1 stop16h 00m

$909

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/18

5:00 am-6:53 pm

2 stops21h 53m

Las Vegas Harry Reid Intl

Wed 6/3

1:30 pm-3:30 pm

2 stops18h 00m

$911

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 4/26

5:00 am-6:06 pm

2 stops21h 06m

Las Vegas Harry Reid Intl

Mon 5/11

5:50 pm-5:50 pm

1 stop16h 00m

$911

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sat 4/11

5:35 am-4:51 pm

2 stops19h 16m

Las Vegas Harry Reid Intl

Tue 4/14

10:25 am-2:55 pm

2 stops20h 30m

$919
Quickest round-trip

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 5/4

11:55 am-6:35 pm

1 stop14h 40m

Las Vegas Harry Reid Intl

Wed 5/13

5:50 pm-10:25 pm

1 stop20h 35m

$927

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

5:00 am-6:28 pm

2 stops21h 28m

Las Vegas Harry Reid Intl

Wed 5/13

11:40 am-3:30 pm

2 stops19h 50m

$929

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Fri 5/22

11:55 am-12:23 am

2 stops20h 28m

Las Vegas Harry Reid Intl

Mon 6/1

6:20 am-10:55 am

2 stops20h 35m

$938

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 31 resultsSorted by cheapest first
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Best time to book a flight from Portugal to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Portugal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Las Vegas

What is the cheapest month to book a flight from Portugal to Las Vegas?

Currently, July is the cheapest month in which you can book a flight from Portugal to Las Vegas (average of $393). Flying from Portugal to Las Vegas in January is currently the most expensive (average of $773). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated April 1, 2026.
Get a feel of what it's like to fly with Delta from Portugal to Las Vegas by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Portugal to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Las Vegas from Portugal?

    Las Vegas Harry Reid Intl (LAS) is the airport you will fly into if you book a flight from Portugal to Las Vegas. It is only a 6.2 mi journey from Harry Reid Intl (LAS) to Las Vegas’s city center.

  • How long is the flight from Portugal to Las Vegas?

    Air Transat, KLM, and Delta can get you from Portugal to Las Vegas in just under 18h 42m. Your travel time can differ by up to 2h 53m. The distance from Portugal to Las Vegas is about 5437 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Portugal to Las Vegas one-way?

    The cheapest airlines for a one-way flight from Portugal to Las Vegas are Air Transat ($394), American Airlines ($565), and Iberia ($584).

  • Can I find deals for flights from Portugal to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Portugal to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portugal to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Las Vegas.

  • Can I find deals for business class flights from Portugal to Las Vegas?

    Yes. Cheapflights offers flight deals from Portugal to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portugal to Las Vegas?

    Currently, July is the cheapest month in which you can book a flight from Portugal to Las Vegas (average of $393). Flying from Portugal to Las Vegas in January is currently the most expensive (average of $773). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Mesquite
Henderson
North Las Vegas
Kingman
Winchester
Boulder City
Needles
Sunrise Manor

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Top airline flying from Portugal to Las Vegas

Discover the top airline that operate flights from Portugal to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$714Average$893FlexibilityNo cancel feeOn-timeN/A

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