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$421+ Cheap flights from Porto (OPO) 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAS
Jul 30 — Aug 61
Thu 7/30
Thu 8/6
1 adult, Economy
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Cheap flight deals from Porto to Las Vegas

Cheapest flights from Porto to Las Vegas
Explore the most affordable flight options available from Porto to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2026.

This Air Transat deal was found by Cheapflights users on 6/27. 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.
Fri 7/241:30 pm
OPO
-
LAS
1 stop16h 52m
Air Transat
Mon 8/249:45 am
LAS
-
OPO
1 stop18h 00m
Air Transat
Deal found 6/27$677
This Air Transat deal was found by Cheapflights users on 6/27. 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.
Sat 7/251:30 pm
OPO
-
LAS
1 stop16h 52m
Air Transat
Tue 8/2511:20 pm
LAS
-
OPO
1 stop28h 35m
Air Transat
Deal found 6/27$722
This Rumbo deal was found by Cheapflights users on 6/29. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/241:30 pm
OPO
-
LAS
1 stop16h 52m
Air Transat
Tue 9/811:20 pm
LAS
-
OPO
1 stop28h 35m
Air Transat
Deal found 6/29$753
This Kiwi.com deal was found by Cheapflights users on 6/27. 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.
Mon 9/710:25 pm
OPO
-
LAS
2 stops31h 57m
Multiple Airlines
Wed 9/307:20 pm
LAS
-
OPO
1 stop15h 10m
Multiple Airlines
Deal found 6/27$780
This SmartFares deal was found by Cheapflights users on 6/26. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/101:30 pm
OPO
-
LAS
1 stop16h 52m
Air Transat
Sat 7/2511:20 pm
LAS
-
OPO
1 stop28h 25m
Air Transat
Deal found 6/26$787
This Gotogate deal was found by Cheapflights users on 6/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/101:30 pm
OPO
-
LAS
1 stop16h 52m
Air Transat
Mon 8/249:45 am
LAS
-
OPO
1 stop18h 00m
Air Transat
Deal found 6/28$793
This Gotogate deal was found by Cheapflights users on 6/27. 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 7/101:30 pm
OPO
-
LAS
1 stop27h 17m
Air Transat
Thu 7/2311:20 pm
LAS
-
OPO
1 stop28h 25m
Air Transat
Deal found 6/27$798
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/91:30 pm
OPO
-
LAS
1 stop16h 52m
Multiple Airlines
Sat 7/259:42 pm
LAS
-
OPO
2 stops51h 18m
Multiple Airlines
Deal found 6/26$803
This Kiwi.com deal was found by Cheapflights users on 6/26. 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.
Fri 7/101:30 pm
OPO
-
LAS
1 stop16h 52m
Multiple Airlines
Sat 7/259:42 pm
LAS
-
OPO
2 stops51h 18m
Multiple Airlines
Deal found 6/26$806
This Air Transat deal was found by Cheapflights users on 6/27. 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.
Fri 7/241:30 pm
OPO
-
LAS
1 stop16h 52m
Air Transat
Sun 8/2311:20 pm
LAS
-
OPO
1 stop28h 25m
Air Transat
Deal found 6/27$842
This Kiwi.com deal was found by Cheapflights users on 6/27. 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.
Fri 7/241:30 pm
OPO
-
LAS
1 stop16h 52m
Multiple Airlines
Mon 8/2411:57 am
LAS
-
OPO
2 stops25h 48m
Multiple Airlines
Deal found 6/27$855

Find flight deals from Porto to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$677
(Air Transat)

One-way from

$421
(Trip.com)

Popular in

May

Cheapest in

March

Average price

$945
Provider with most accurate pricing for Porto-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto-Las Vegas Harry Reid Intl flights.
Search Deals
From Porto to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Porto to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto 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 June 30, 2026.
Use the filters below to find and compare flights from Porto 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 8/24

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Tue 9/8

11:20 pm-11:55 am

1 stop28h 35m

$753

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 9/20

5:00 am-7:26 pm

2 stops22h 26m

Las Vegas Harry Reid Intl

Sat 9/26

5:50 pm-10:00 pm

1 stop20h 10m

$938

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 8/24

8:00 pm-6:35 pm

1 stop30h 35m

Las Vegas Harry Reid Intl

Tue 9/8

8:25 pm-3:30 pm

1 stop35h 05m

$940

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 9/21

11:25 am-12:28 am

2 stops21h 03m

Las Vegas Harry Reid Intl

Sun 9/27

7:05 am-10:25 am

1 stop19h 20m

$942

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 9/20

12:25 pm-12:28 am

1 stop20h 03m

Las Vegas Harry Reid Intl

Sat 9/26

11:38 pm-10:25 am

1 stop26h 47m

$958
Quickest round-trip

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 12/3

6:00 am-2:35 pm

1 stop16h 35m

Las Vegas Harry Reid Intl

Mon 12/7

10:00 am-9:30 am

1 stop15h 30m

$961

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 10/7

6:00 am-4:20 pm

1 stop18h 20m

Las Vegas Harry Reid Intl

Sun 10/11

7:00 am-9:45 am

1 stop18h 45m

$963
Cheapest one-way

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 7/9

1:30 pm-10:22 pm

1 stop16h 52m

$433

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Tue 7/7

10:30 pm-10:22 pm

3 stops31h 52m

$576

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sat 7/11

1:30 pm-10:22 pm

1 stop16h 52m

$626

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/26

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Porto to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Las Vegas in June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Porto-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Porto 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.

Related info for your journey

Find useful and relevant information for your journey from Porto to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like Air Transat, Delta, and KLM fly from Porto to Las Vegas in about 16h 52m. The time it takes to get you to your destination can typically vary by up to 13h 43m. There are 5352 mi between Porto and Las Vegas. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Porto 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.

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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