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$366+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAS
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheap 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$613
(Booking.com)

One-way from

$366
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$1,066
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. 8% potential increase in price ($96 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 March 25, 2025.

This Booking.com deal was found by Cheapflights users on 3/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/121:30 pmOPO - LAS
1 stop34h 13mAir Transat
Wed 5/289:55 amLAS - OPO
1 stop17h 50mAir Transat
Deal found 3/24$613
This Delta deal was found by Cheapflights users on 3/24. 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.
Mon 5/1211:25 amOPO - LAS
2 stops20h 53mDelta
Wed 5/281:55 pmLAS - OPO
2 stops21h 40mDelta
Deal found 3/24$736
This KLM deal was found by Cheapflights users on 3/24. 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.
Mon 5/126:30 amOPO - LAS
2 stops19h 09mKLM
Wed 5/283:15 pmLAS - OPO
1 stop35h 25mKLM
Deal found 3/24$834
This Iberia deal was found by Cheapflights users on 3/24. 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 6/412:20 pmOPO - LAS
2 stops19h 23mIberia
Wed 6/188:45 amLAS - OPO
2 stops27h 10mIberia
Deal found 3/24$845
This Trip.com deal was found by Cheapflights users on 3/24. 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.
Fri 6/277:00 amOPO - LAS
2 stops22h 58mMultiple Airlines
Wed 7/99:55 amLAS - OPO
2 stops23h 10mMultiple Airlines
Deal found 3/24$876
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/276:00 amOPO - LAS
2 stops21h 54mUnited Airlines
Wed 7/212:22 pmLAS - OPO
1 stop13h 23mUnited Airlines
Deal found 3/24$1,169
This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/278:15 amOPO - LAS
2 stops21h 52mBritish Airways
Tue 7/112:53 amLAS - OPO
2 stops22h 42mBritish Airways
Deal found 3/24$2,033

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 March 25, 2025.
Use the filters below to find and compare flights from Porto to Las Vegas that are best for you.

Fly from

Porto

Fly to

Las Vegas

Route

Depart

Return

Price

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/12

1:30 pm-3:43 pm

1 stop34h 13m

Las Vegas Harry Reid Intl

Wed 5/28

9:55 am-11:45 am

1 stop17h 50m

$613

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/12

11:25 am-12:18 am

2 stops20h 53m

Las Vegas Harry Reid Intl

Wed 5/28

1:55 pm-7:35 pm

2 stops21h 40m

$736

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/12

6:30 am-5:39 pm

2 stops19h 09m

Las Vegas Harry Reid Intl

Wed 5/28

3:15 pm-10:40 am

1 stop35h 25m

$834

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 6/4

12:20 pm-11:43 pm

2 stops19h 23m

Las Vegas Harry Reid Intl

Wed 6/18

8:45 am-7:55 pm

2 stops27h 10m

$845

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 6/27

7:00 am-9:58 pm

2 stops22h 58m

Las Vegas Harry Reid Intl

Wed 7/9

9:55 am-5:05 pm

2 stops23h 10m

$876

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 6/27

6:00 am-7:54 pm

2 stops21h 54m

Las Vegas Harry Reid Intl

Wed 7/2

12:22 pm-9:45 am

1 stop13h 23m

$1,169

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 6/27

8:15 am-10:07 pm

2 stops21h 52m

Las Vegas Harry Reid Intl

Tue 7/1

12:53 am-7:35 am

2 stops22h 42m

$2,033

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/12

8:50 pm-4:34 pm

2 stops51h 44m

$366

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/12

1:30 pm-9:58 pm

1 stop16h 28m

$394

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 6/29

6:55 pm-6:35 pm

1 stop31h 40m

$990

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 11 results
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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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

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

Currently, August is the cheapest month in which you can book a flight from Porto to Las Vegas (average of $198). Flying from Porto to Las Vegas in March is currently the most expensive (average of $269). 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.

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 March 25, 2025.
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,890 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Iberia
7.0
Good
2,645 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines flying from Porto to Las Vegas round-trip?

    Cheapflights users have booked flights from Porto to Las Vegas round-trip from $613. Other airlines that can offer you cheap pricing are Delta, from $736, and KLM, from $834. Air Transat is 38% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Porto to Las Vegas one-way?

    $394 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on KLM and United Airlines, with prices starting from $990 and $1,048, respectively.

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Porto to Las Vegas (average of $198). Flying from Porto to Las Vegas in March is currently the most expensive (average of $269). 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 Porto?

Book flights to Porto if you plan to visit one of these locations
Henderson
Paradise
North Las Vegas
Sunrise Manor
Winchester
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Primm
Mesquite
Needles
Mount Charleston
Pahrump
Boulder City

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