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$331+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — LAS
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Find 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 November 13, 2025.

This Rumbo deal was found by Cheapflights users on 11/13. 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.
Thu 12/258:50 amOPO - LAS
1 stop21h 12mAir Transat
Thu 1/811:05 pmLAS - OPO
1 stop24h 00mAir Transat
Deal found 11/13$649
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:50 amOPO - LAS
1 stop21h 12mMultiple Airlines
Thu 1/811:05 pmLAS - OPO
2 stops28h 45mMultiple Airlines
Deal found 11/13$775
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:35 amLIS - LAS
1 stop21h 34mMultiple Airlines
Tue 12/307:11 pmLAS - LIS
2 stops44h 19mMultiple Airlines
Deal found 11/12$839
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:00 amLIS - LAS
1 stop17h 40mUnited Airlines
Tue 12/3011:00 amLAS - LIS
2 stops15h 15mUnited Airlines
Deal found 11/11$855
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2012:35 pmOPO - LAS
2 stops18h 40mUnited Airlines
Wed 12/31:50 pmLAS - OPO
1 stop17h 35mUnited Airlines
Deal found 11/11$881
This Delta deal was found by Cheapflights users on 11/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:35 amOPO - LAS
2 stops21h 12mDelta
Wed 12/37:25 amLAS - OPO
2 stops19h 05mDelta
Deal found 11/11$883
This KLM deal was found by Cheapflights users on 11/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:30 amOPO - LAS
2 stops21h 17mMultiple Airlines
Tue 12/29:53 amLAS - OPO
2 stops16h 37mMultiple Airlines
Deal found 11/12$884
This American Airlines deal was found by Cheapflights users on 11/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:45 amLIS - LAS
2 stops19h 28mAmerican Airlines
Tue 12/306:15 amLAS - LIS
2 stops18h 50mAmerican Airlines
Deal found 11/11$887
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:30 pmOPO - LAS
1 stop31h 35mUnited Airlines
Wed 12/241:50 pmLAS - OPO
1 stop17h 35mUnited Airlines
Deal found 11/12$889
This Delta deal was found by Cheapflights users on 11/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:30 amOPO - LAS
2 stops21h 17mDelta
Tue 12/24:05 pmLAS - OPO
1 stop15h 20mDelta
Deal found 11/12$890
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amOPO - LAS
2 stops22h 10mUnited Airlines
Wed 12/241:50 pmLAS - OPO
1 stop17h 35mUnited Airlines
Deal found 11/12$892
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:30 pmOPO - LAS
2 stops53h 10mUnited Airlines
Wed 12/241:50 pmLAS - OPO
1 stop17h 35mUnited Airlines
Deal found 11/12$894

Cheap 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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$602
(Kiwi.com)

One-way from

$331
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$988
Provider with most accurate pricing for Lisbon Humberto Delgado-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Las Vegas Harry Reid Intl flights.
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From Portugal to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Portugal to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 13, 2025.
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

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 2/9

5:20 pm-8:55 pm

2 stops35h 35m

Las Vegas Harry Reid Intl

Fri 2/20

9:32 am-8:55 am

2 stops39h 23m

$696

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 1/11

4:55 pm-8:48 pm

2 stops35h 53m

Las Vegas Harry Reid Intl

Fri 1/16

9:39 am-4:05 pm

2 stops46h 26m

$721

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 5/4

11:35 am-8:50 am

1 stop29h 15m

Las Vegas Harry Reid Intl

Wed 5/13

9:55 am-9:35 am

1 stop15h 40m

$726

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 2/4

8:20 am-11:28 pm

3 stops47h 08m

Las Vegas Harry Reid Intl

Sat 2/7

7:35 pm-12:50 pm

2 stops33h 15m

$748

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Fri 2/27

9:00 am-10:02 pm

1 stop21h 02m

Las Vegas Harry Reid Intl

Tue 3/3

10:58 pm-9:55 am

2 stops26h 57m

$776

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sat 4/25

7:00 am-12:02 am

2 stops25h 02m

Las Vegas Harry Reid Intl

Sat 5/9

7:05 am-4:00 pm

2 stops24h 55m

$813

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

1:30 pm-8:50 am

1 stop27h 20m

Las Vegas Harry Reid Intl

Wed 5/13

9:55 am-11:45 am

1 stop17h 50m

$817

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 12/14

5:00 am-2:40 pm

1 stop17h 40m

Las Vegas Harry Reid Intl

Mon 12/29

12:59 am-10:15 am

2 stops25h 16m

$856

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 2/13

6:00 am-5:15 pm

2 stops19h 15m

Las Vegas Harry Reid Intl

Thu 2/19

6:22 pm-11:40 pm

2 stops21h 18m

$858

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Fri 2/27

5:00 am-5:15 pm

2 stops20h 15m

Las Vegas Harry Reid Intl

Sat 2/28

12:59 am-8:10 am

2 stops23h 11m

$860

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 24 results
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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, 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 November is currently the most expensive (average of $798). 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 November 13, 2025.
Get a feel of what it's like to fly with Delta, American Airlines, and British Airways 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.
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Crew

8.5

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.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Crew

8.5

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.
American Airlines
7.2
Good
11,050 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Crew

8.5

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.
British Airways
6.7
Okay
7,516 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Crew

8.5

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?

    Scandinavian Airlines, Air Transat, and Lufthansa can get you from Portugal to Las Vegas in just under 19h 15m. Your travel time can differ by up to 16h 20m. The distance from Portugal to Las Vegas is about 5352 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 November is currently the most expensive (average of $798). 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
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Winchester
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Sunrise Manor
Primm
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Needles
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Alternative routes for Portugal to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Portugal to Las Vegas

Discover the top 3 airlines 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$704Average$991FlexibilityNo cancel feeOn-time70%
DeltaCheapest$714Average$830FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$733Average$974FlexibilityNo cancel feeOn-time71%

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