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$418+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAS
Sep 9 — Sep 161
Wed 9/9
Wed 9/16
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 August 10, 2026.

This Rumbo deal was found by Cheapflights users on 8/10. 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.
Thu 9/31:30 pm -
1 stop16h 52m
Wed 9/1612:45 pm -
1 stop15h 10m
Deal found 8/10$648
This Gotogate deal was found by Cheapflights users on 8/6. 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 -
1 stop16h 52m
Wed 9/2312:45 pm -
1 stop15h 10m
Deal found 8/6$766
This Mytrip deal was found by Cheapflights users on 8/7. 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.
Sat 9/263:30 pm -
3 stops34h 20m
Thu 10/15:15 pm -
3 stops35h 50m
Deal found 8/7$874
This Mytrip deal was found by Cheapflights users on 8/8. 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 9/107:10 pm -
3 stops35h 13m
Wed 9/2312:10 pm -
2 stops25h 50m
Deal found 8/8$927
This Mytrip deal was found by Cheapflights users on 8/7. 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.
Wed 10/78:10 pm -
2 stops27h 05m
Thu 10/1510:43 am -
3 stops24h 02m
Deal found 8/7$929

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 August 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$648
(Rumbo)

One-way from

$418
(Kiwi.com)

Popular in

May

Cheapest in

October

Average price

$1,114
Provider with most accurate pricing for Porto-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Porto-Las Vegas Harry Reid Intl flights.
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From Porto to Las Vegas Harry Reid Intl
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One-way flight from Porto to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 6% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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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 August 10, 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 Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Thu 9/10

7:10 pm-10:23 pm

3 stops35h 13m

Las Vegas Harry Reid Intl

Wed 9/23

12:10 pm-10:00 pm

2 stops25h 50m

$927

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Fri 9/18

9:30 pm-8:07 am

2 stops42h 37m

Las Vegas Harry Reid Intl

Wed 9/23

12:45 pm-11:55 am

1 stop15h 10m

$947

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Sun 9/20

5:00 am-6:35 pm

1 stop21h 35m

Las Vegas Harry Reid Intl

Sat 9/26

5:50 pm-10:00 pm

1 stop20h 10m

$965

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Fri 9/18

5:00 am-7:34 pm

2 stops22h 34m

Las Vegas Harry Reid Intl

Wed 9/23

12:22 pm-3:25 pm

2 stops19h 03m

$970

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Sun 9/20

5:00 am-6:00 pm

2 stops21h 00m

Las Vegas Harry Reid Intl

Sat 9/26

6:00 am-8:30 am

2 stops18h 30m

$970

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Sun 9/27

5:00 am-7:26 pm

2 stops22h 26m

Las Vegas Harry Reid Intl

Sat 10/3

1:22 pm-3:30 pm

2 stops18h 08m

$972

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Mon 9/21

5:00 am-7:53 pm

2 stops22h 53m

Las Vegas Harry Reid Intl

Sun 9/27

8:25 pm-10:15 pm

1 stop17h 50m

$974

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Fri 9/18

5:55 am-4:26 pm

2 stops18h 31m

Las Vegas Harry Reid Intl

Mon 9/21

5:50 pm-10:00 pm

1 stop20h 10m

$975
Quickest round-trip

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Mon 9/21

7:00 am-3:35 pm

1 stop16h 35m

Las Vegas Harry Reid Intl

Sun 9/27

8:25 pm-7:05 pm

1 stop14h 40m

$976
Cheapest one-way

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Mon 10/12

9:45 pm-3:15 pm

2 stops25h 30m

$482

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

Showing 1-10 of 16 resultsSorted by cheapest first
1
2
  • 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.

Cheapflights Insights

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

How much does it cost to fly round-trip from Porto to Las Vegas?

Airfare is below average for this route at the moment.

Porto to Las Vegas flights typically cost between $962 and $1,358 in September.
The cheapest round-trip price found within the last 5 days was $648 on Air Transat (Sep 3-Sep 16).

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 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 . There are 5352 mi between Porto and Las Vegas.

  • 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
Henderson
Mesquite
Kingman
North Las Vegas
Winchester
Boulder City
Needles
Sunrise Manor

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Alternative routes for Porto to Las Vegas

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