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$470+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAS
Jun 9 — Jun 161
Tue 6/9
Tue 6/16
1 adult, Economy
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1. Tell us where you want to go

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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 May 10, 2026.

This Gotogate deal was found by Cheapflights users on 5/5. 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.
Sat 6/201:30 pm
OPO
-
LAS
1 stop27h 17m
Air Transat
Fri 7/39:45 am
LAS
-
OPO
1 stop18h 00m
Air Transat
Deal found 5/5$773
This Trip.com deal was found by Cheapflights users on 5/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:30 pm
OPO
-
LAS
1 stop27h 17m
Air Transat
Wed 7/1511:15 pm
LAS
-
OPO
1 stop28h 30m
Air Transat
Deal found 5/6$900
This Trip.com deal was found by Cheapflights users on 5/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:25 am
OPO
-
LAS
3 stops36h 05m
Multiple Airlines
Thu 9/108:30 am
LAS
-
OPO
2 stops19h 15m
Multiple Airlines
Deal found 5/10$901
This Delta deal was found by Cheapflights users on 5/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:00 am
OPO
-
LAS
1 stop21h 35m
Delta
Sat 5/305:50 pm
LAS
-
OPO
1 stop20h 10m
Delta
Deal found 5/6$934
This KLM deal was found by Cheapflights users on 5/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:10 pm
OPO
-
LAS
1 stop31h 25m
KLM
Sat 5/305:50 pm
LAS
-
OPO
1 stop20h 10m
KLM
Deal found 5/7$935
This Air France deal was found by Cheapflights users on 5/5. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1511:25 am
OPO
-
LAS
1 stop15h 10m
Multiple Airlines
Sat 5/305:50 pm
LAS
-
OPO
1 stop20h 10m
Multiple Airlines
Deal found 5/5$936
This Expedia deal was found by Cheapflights users on 5/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:40 pm
OPO
-
LAS
2 stops31h 58m
Multiple Airlines
Tue 11/107:00 am
LAS
-
OPO
2 stops16h 40m
Multiple Airlines
Deal found 5/5$937
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1511:25 am
OPO
-
LAS
1 stop15h 10m
Delta
Sat 5/305:50 pm
LAS
-
OPO
1 stop20h 10m
Delta
Deal found 5/7$939
This Air France deal was found by Cheapflights users on 5/9. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:00 am
OPO
-
LAS
1 stop21h 35m
Multiple Airlines
Mon 6/15:50 pm
LAS
-
OPO
1 stop20h 10m
Multiple Airlines
Deal found 5/9$940

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 May 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$773
(Gotogate)

One-way from

$470
(Kiwi.com)

Popular in

November

Cheapest in

October

Average price

$915
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
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 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 - LAS

OPOLAS

Porto

Wed 5/20

11:45 am-6:35 pm

1 stop14h 50m

Las Vegas Harry Reid Intl

Sat 5/30

5:50 pm-10:00 pm

1 stop20h 10m

$938

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Tue 6/9

7:00 pm-6:35 pm

1 stop31h 35m

Las Vegas Harry Reid Intl

Tue 6/23

8:25 pm-10:40 am

1 stop30h 15m

$940

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 5/20

11:45 am-6:35 pm

1 stop14h 50m

Las Vegas Harry Reid Intl

Sat 5/30

6:05 am-10:20 am

2 stops20h 15m

$943

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Tue 6/9

5:00 am-7:59 pm

2 stops22h 59m

Las Vegas Harry Reid Intl

Tue 6/23

7:05 am-10:30 am

1 stop19h 25m

$947
Quickest round-trip

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 11/5

6:00 am-2:35 pm

1 stop16h 35m

Las Vegas Harry Reid Intl

Tue 11/10

10:00 am-9:30 am

1 stop15h 30m

$988

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Tue 9/1

12:15 pm-10:24 pm

1 stop18h 09m

Las Vegas Harry Reid Intl

Thu 9/10

11:25 pm-7:10 am

1 stop23h 45m

$988

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/24

6:00 am-8:07 pm

2 stops22h 07m

Las Vegas Harry Reid Intl

Mon 9/28

7:41 pm-9:45 am

2 stops30h 04m

$992

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 9/2

6:00 am-4:20 pm

1 stop18h 20m

Las Vegas Harry Reid Intl

Fri 9/11

6:00 am-6:50 am

2 stops16h 50m

$994
Cheapest one-way

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 6/1

10:40 pm-12:32 am

3 stops57h 52m

$470
Quickest one-way

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 7/19

8:25 am-10:17 pm

2 stops21h 52m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 16 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 May.
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.

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?

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 KLM and Delta fly from Porto to Las Vegas in about 14h 50m. 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
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