Las Vegas

$500+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — LAS
Jun 15 — Jun 221
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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 May 16, 2026.

This Air Transat deal was found by Cheapflights users on 5/16. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:35 am
LIS
-
LAS
1 stop35h 07m
Air Transat
Wed 11/1111:05 pm
LAS
-
LIS
1 stop23h 40m
Air Transat
Deal found 5/16$701
This Air Transat deal was found by Cheapflights users on 5/16. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:35 am
LIS
-
LAS
1 stop35h 07m
Air Transat
Tue 11/1011:05 pm
LAS
-
LIS
1 stop23h 40m
Air Transat
Deal found 5/16$724
This Trip.com deal was found by Cheapflights users on 5/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:35 am
LIS
-
LAS
2 stops42h 40m
Multiple Airlines
Sat 11/78:00 am
LAS
-
LIS
3 stops39h 45m
Multiple Airlines
Deal found 5/14$765
This Trip.com deal was found by Cheapflights users on 5/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/146:10 am
LIS
-
LAS
2 stops23h 30m
WestJet
Thu 6/184:35 pm
LAS
-
LIS
2 stops22h 00m
WestJet
Deal found 5/15$783
This Gotogate deal was found by Cheapflights users on 5/14. 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 7/611:35 am
LIS
-
LAS
1 stop18h 42m
Air Transat
Wed 7/2211:15 pm
LAS
-
LIS
1 stop26h 20m
Air Transat
Deal found 5/14$820
This Rumbo deal was found by Cheapflights users on 5/12. 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 7/211:35 am
LIS
-
LAS
1 stop18h 42m
Air Transat
Wed 7/1511:15 pm
LAS
-
LIS
1 stop26h 20m
Air Transat
Deal found 5/12$822
This Mytrip deal was found by Cheapflights users on 5/15. 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.
Fri 6/1211:35 am
LIS
-
LAS
1 stop18h 42m
Air Transat
Fri 6/2611:15 pm
LAS
-
LIS
1 stop26h 20m
Air Transat
Deal found 5/15$843
This Air Transat deal was found by Cheapflights users on 5/16. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:00 am
LIS
-
LAS
1 stop20h 02m
Air Transat
Wed 11/412:40 pm
LAS
-
LIS
1 stop34h 05m
Air Transat
Deal found 5/16$846
This Trip.com deal was found by Cheapflights users on 5/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:10 am
LIS
-
LAS
2 stops44h 25m
WestJet
Thu 6/181:20 pm
LAS
-
LIS
3 stops25h 15m
WestJet
Deal found 5/14$847
This Gotogate deal was found by Cheapflights users on 5/15. 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 7/1011:35 am
LIS
-
LAS
1 stop29h 12m
Air Transat
Thu 7/239:45 am
LAS
-
LIS
1 stop15h 50m
Air Transat
Deal found 5/15$854
This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Tue 10/2711:35 am
LIS
-
LAS
1 stop17h 27m
Multiple Airlines
Mon 11/91:10 pm
LAS
-
LIS
1 stop13h 55m
Multiple Airlines
Deal found 5/16$855
This Mytrip deal was found by Cheapflights users on 5/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/21:30 pm
OPO
-
LAS
1 stop16h 47m
Air Transat
Wed 7/1511:15 pm
LAS
-
OPO
1 stop28h 30m
Air Transat
Deal found 5/12$858

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 May 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$701
(Air Transat)

One-way from

$500
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$1,050
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
High demand for flights, 2% potential price rise
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in May 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 May 16, 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

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

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 9/21

5:00 am-7:58 pm

2 stops22h 58m

Las Vegas Harry Reid Intl

Sun 9/27

6:00 am-10:25 am

2 stops20h 25m

$962

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Fri 9/25

11:55 am-6:35 pm

1 stop14h 40m

Las Vegas Harry Reid Intl

Thu 10/1

1:05 pm-5:50 pm

2 stops20h 45m

$966

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 6/14

5:55 am-12:03 am

3 stops26h 08m

Las Vegas Harry Reid Intl

Thu 6/18

1:20 pm-10:35 pm

3 stops25h 15m

$968

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Tue 8/25

5:00 am-6:56 pm

2 stops21h 56m

Las Vegas Harry Reid Intl

Thu 9/3

7:05 am-10:30 am

1 stop19h 25m

$973

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Mon 9/28

5:35 am-3:35 pm

1 stop18h 00m

Las Vegas Harry Reid Intl

Thu 10/8

1:50 pm-5:50 pm

2 stops20h 00m

$979

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 9/20

12:25 pm-9:56 pm

1 stop17h 31m

Las Vegas Harry Reid Intl

Sat 9/26

5:50 pm-10:00 pm

1 stop20h 10m

$982

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 9/21

12:15 pm-12:02 am

1 stop19h 47m

Las Vegas Harry Reid Intl

Sun 9/27

11:30 am-10:25 am

1 stop14h 55m

$983

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Sun 11/1

11:15 am-11:55 pm

2 stops20h 40m

Las Vegas Harry Reid Intl

Sat 11/7

8:55 am-9:00 am

2 stops16h 05m

$995

LisbonLas Vegas

LIS - LAS

LISLAS

Lisbon Humberto Delgado

Thu 11/5

5:00 am-2:35 pm

1 stop17h 35m

Las Vegas Harry Reid Intl

Mon 11/9

8:35 am-10:15 am

1 stop17h 40m

$997

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

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

How far ahead should I book a flight from Portugal to Las Vegas?

The price you pay for your flight from Portugal to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 59 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Portugal to Las Vegas (average of $235). Flying from Portugal to Las Vegas in June is currently the most expensive (average of $858). 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 May 16, 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

Comfort

7.8

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Crew

8.5

Comfort

7.8

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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?

    Delta can get you from Portugal to Las Vegas in just under 21h 46m. 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 ($394), American Airlines ($565), and British Airways ($580).

  • 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, November is the cheapest month in which you can book a flight from Portugal to Las Vegas (average of $235). Flying from Portugal to Las Vegas in June is currently the most expensive (average of $858). 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
North Las Vegas
Henderson
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 May 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$748Average$915FlexibilityNo cancel feeOn-timeN/A

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