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$504+ 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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAS
Sep 15 — Sep 221
Tue 9/15
Tue 9/22
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 16, 2026.

This lol.travel deal was found by Cheapflights users on 8/13. 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 lol.travel 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 8/13$752
This Mytrip deal was found by Cheapflights users on 8/12. 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.
Wed 9/168:15 pm -
2 stops29h 30m
Tue 9/295:15 pm -
2 stops18h 25m
Deal found 8/12$829
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/109:30 pm -
2 stops42h 37m
Wed 9/235:50 pm -
1 stop20h 10m
Deal found 8/13$935
This Iberia deal was found by Cheapflights users on 8/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:20 am -
2 stops20h 42m
Tue 9/223:11 pm -
2 stops16h 49m
Deal found 8/14$956
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:00 am -
1 stop21h 35m
Wed 9/235:50 pm -
1 stop20h 10m
Deal found 8/14$963
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/611:45 am -
1 stop14h 50m
Sat 9/195:50 pm -
1 stop20h 10m
Deal found 8/15$965
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:00 am -
2 stops18h 46m
Sat 9/266:00 am -
2 stops18h 30m
Deal found 8/14$968

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 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$752
(lol.travel)

One-way from

$504
(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
Search Deals
One-way flight from Porto to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 16, 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

Wed 9/16

4:50 pm-5:45 pm

3 stops32h 55m

Las Vegas Harry Reid Intl

Tue 9/29

5:15 pm-8:00 am

3 stops30h 45m

$856
Quickest round-trip

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Sun 9/6

11:45 am-6:35 pm

1 stop14h 50m

Las Vegas Harry Reid Intl

Sat 9/19

5:50 pm-10:00 pm

1 stop20h 10m

$965

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Sun 9/20

5:00 am-3:46 pm

2 stops18h 46m

Las Vegas Harry Reid Intl

Sat 9/26

6:00 am-8:30 am

2 stops18h 30m

$968

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Thu 9/10

5:00 am-7:39 pm

2 stops22h 39m

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

Mon 9/21

5:00 am-7:53 pm

2 stops22h 53m

Las Vegas Harry Reid Intl

Sun 9/27

12:22 pm-10:25 am

1 stop14h 03m

$972
Cheapest one-way
Quickest one-way

PortoLas Vegas

OPO Porto - LAS Las Vegas Harry Reid Intl

OPOLAS

Porto

Sun 1/31

7:55 pm-9:23 am

3 stops45h 28m

$504

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Sorted by cheapest first
  • 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 $752 on Air Transat (Sep 10-Sep 23).

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 Delta fly from Porto to Las Vegas in about 21h 35m. 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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