Las Vegas

$365+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — LAS
Mar 15 — Mar 221
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portugal to Las Vegas with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 13, 2026.

This Mytrip deal was found by Cheapflights users on 2/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:50 am
OPO
-
LAS
1 stop20h 52m
Air Transat
Thu 4/911:45 pm
LAS
-
OPO
1 stop24h 20m
Air Transat
Deal found 2/10$581
This Rumbo deal was found by Cheapflights users on 2/12. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:50 am
OPO
-
LAS
1 stop20h 52m
Air Transat
Thu 4/2311:05 pm
LAS
-
OPO
1 stop25h 00m
Air Transat
Deal found 2/12$638
This Rumbo deal was found by Cheapflights users on 2/10. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/88:35 am
LIS
-
LAS
1 stop20h 27m
Air Transat
Mon 3/2312:40 pm
LAS
-
LIS
1 stop35h 05m
Air Transat
Deal found 2/10$656
This BusinessClass deal was found by Cheapflights users on 2/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:35 am
LIS
-
LAS
1 stop32h 07m
Air Transat
Thu 10/89:45 am
LAS
-
LIS
1 stop15h 50m
Air Transat
Deal found 2/13$666
This Gotogate deal was found by Cheapflights users on 2/10. 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.
Sun 4/59:35 am
LIS
-
LAS
1 stop20h 27m
Air Transat
Mon 4/2011:05 pm
LAS
-
LIS
1 stop24h 40m
Air Transat
Deal found 2/10$724
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:40 am
LIS
-
LAS
1 stop19h 22m
Multiple Airlines
Tue 4/2111:49 pm
LAS
-
LIS
2 stops29h 51m
Multiple Airlines
Deal found 2/10$732
This Gotogate deal was found by Cheapflights users on 2/12. 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.
Fri 2/209:00 am
LIS
-
LAS
1 stop21h 02m
Air Transat
Fri 3/611:05 pm
LAS
-
LIS
1 stop23h 40m
Air Transat
Deal found 2/12$740
This Rumbo deal was found by Cheapflights users on 2/13. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/279:00 am
LIS
-
LAS
1 stop20h 02m
Air Transat
Fri 4/1011:05 pm
LAS
-
LIS
1 stop24h 40m
Air Transat
Deal found 2/13$756
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:50 am
OPO
-
LAS
1 stop20h 22m
Multiple Airlines
Thu 4/911:59 pm
LAS
-
OPO
2 stops24h 06m
Multiple Airlines
Deal found 2/10$768
This Mytrip deal was found by Cheapflights users on 2/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:50 am
OPO
-
LAS
1 stop20h 52m
Multiple Airlines
Thu 4/232:07 pm
LAS
-
OPO
3 stops22h 18m
Multiple Airlines
Deal found 2/13$783
This Mytrip deal was found by Cheapflights users on 2/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:30 am
LIS
-
LAS
3 stops34h 49m
Multiple Airlines
Fri 4/244:50 pm
LAS
-
LIS
2 stops32h 30m
Multiple Airlines
Deal found 2/11$800
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/59:35 am
LIS
-
LAS
1 stop20h 37m
Multiple Airlines
Mon 4/202:07 pm
LAS
-
LIS
2 stops41h 28m
Multiple Airlines
Deal found 2/10$808

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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$581
(Mytrip)

One-way from

$365
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$885
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 ($8 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in February 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 February 13, 2026.
Use the filters below to find and compare flights from Portugal to Las Vegas that are best for you.

Fly from

Portugal

Fly to

Las Vegas

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 4/9

9:50 am-10:42 pm

1 stop20h 52m

Las Vegas Harry Reid Intl

Thu 4/23

11:05 pm-8:05 am

1 stop25h 00m

$638

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

11:05 pm-6:45 am

1 stop24h 40m

$768

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 4/9

9:50 am-10:42 pm

1 stop20h 52m

Las Vegas Harry Reid Intl

Thu 4/23

2:07 pm-8:25 pm

3 stops22h 18m

$783

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 4/20

11:50 am-10:12 pm

1 stop18h 22m

Las Vegas Harry Reid Intl

Thu 4/23

10:25 pm-6:30 pm

2 stops36h 05m

$800

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sat 8/1

1:30 pm-8:47 am

1 stop27h 17m

Las Vegas Harry Reid Intl

Tue 8/11

11:15 pm-11:45 am

1 stop28h 30m

$829

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Tue 4/14

9:30 am-12:19 pm

3 stops34h 49m

Las Vegas Harry Reid Intl

Fri 4/24

6:43 pm-1:50 pm

3 stops35h 07m

$833

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Fri 2/27

9:00 am-10:12 pm

1 stop21h 12m

Las Vegas Harry Reid Intl

Mon 3/2

7:00 am-11:25 am

2 stops44h 25m

$840

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

7:00 pm-6:35 pm

1 stop31h 35m

Las Vegas Harry Reid Intl

Wed 5/13

8:25 pm-10:40 am

1 stop30h 15m

$869

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Fri 4/24

7:45 pm-6:35 pm

1 stop30h 50m

Las Vegas Harry Reid Intl

Tue 5/5

8:25 pm-2:35 pm

1 stop34h 10m

$877

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 23 results
1
2
3

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, February is the cheapest month in which you can book a flight from Portugal to Las Vegas (average of $496). Flying from Portugal to Las Vegas in December is currently the most expensive (average of $792). 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 February 13, 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.

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

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.

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

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 can get you from Portugal to Las Vegas in just under 20h 52m. Your travel time can differ by up to . The distance from Portugal to Las Vegas is about 5352 mi.

  • 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 ($392), British Airways ($562), and Aer Lingus ($592).

  • 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, February is the cheapest month in which you can book a flight from Portugal to Las Vegas (average of $496). Flying from Portugal to Las Vegas in December is currently the most expensive (average of $792). 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
Henderson
North Las Vegas
Mesquite
Kingman
Winchester
Boulder City
Needles
Sunrise Manor

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portugal to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.

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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$714Average$830FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.