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Cheap flights from Portsmouth to Las Vegas from £725

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAS
4 Apr — 11 Apr1
1 adult

Cheap flight deals from Portsmouth to Las Vegas

Keep the following information in mind while searching for Portsmouth to Las Vegas flight deals. Data was last updated 30 March 2025.

Round-trip from

£725

Popular in

August

Cheapest in

February

Average price

£784
Virgin Atlantic
  • Virgin Atlantic
  • 10/5-17/5
  • 4 total stops
  • 39h 45m total
  • Portsmouth to Las Vegas
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£52 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Portsmouth to Las Vegas

Cheapest flights from Portsmouth to Las Vegas
Explore the most affordable flight options available from Portsmouth to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 March 2025.

Sat 10/509:20SOU - LAS
2 stops22h 05mVirgin Atlantic
Sat 17/507:05LAS - SOU
2 stops17h 40mVirgin Atlantic
Deal found 29/3£725
Sat 10/518:05SOU - LAS
3 stops35h 25mMultiple Airlines
Sat 17/507:10LAS - SOU
3 stops28h 20mMultiple Airlines
Deal found 29/3£762
Sat 10/509:20SOU - LAS
2 stops22h 58mKLM
Sat 17/516:05LAS - SOU
1 stop32h 40mKLM
Deal found 29/3£857

Cheapflights Fare Finder

Customise your flight search to find flights from Portsmouth 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 858,174 searches. Data last updated 30 March 2025.
Use the filters below to find and compare flights from Portsmouth to Las Vegas that are best for you.

Fly from

Portsmouth

Fly to

Las Vegas

Route

Depart

Return

Price

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Sat 10/5

09:20-23:25

2 stops22h 05m

Las Vegas Harry Reid Intl

Sat 17/5

07:05-08:45

2 stops17h 40m

£725

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Sat 10/5

18:05-21:30

3 stops35h 25m

Las Vegas Harry Reid Intl

Sat 17/5

07:10-19:30

3 stops28h 20m

£762

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Sat 10/5

09:20-00:18

2 stops22h 58m

Las Vegas Harry Reid Intl

Sat 17/5

16:05-08:45

1 stop32h 40m

£857

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Fri 6/6

09:20-18:35

1 stop17h 15m

£1,446

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Fri 6/6

09:20-00:11

2 stops22h 51m

£1,451

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Best time to book a flight from Portsmouth to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Portsmouth with our price prediction graph.
Estimated return 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 Portsmouth to Las Vegas

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

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Las Vegas (average of £689). Flying from Portsmouth to Las Vegas in July is currently the most expensive (average of £1,020). 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.

What is the cheapest time of day to fly from P0R to LAS?

Find hourly flight availability from Portsmouth to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Las Vegas as you normally would.

What is the cheapest day to fly from Portsmouth to Las Vegas?

Use this chart to determine the cheapest time to fly return from Portsmouth to Las Vegas. Price data was last updated on 30 June 2024.

Travellers seeking maximum savings on their Portsmouth to Las Vegas flight should consider departing on Saturday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 3.0 - 20.0 inches per month. February is typically the wettest month, when rainfall can reach 20.0 mm. May is typically the driest time to visit Las Vegas when rainfall is around 3.0 mm.

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 34.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

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 30 March 2025.
See what other customers who have flown with Delta, KLM and Virgin Atlantic from Portsmouth to Las Vegas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,897 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

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
7,897 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

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
1,321 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

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
Virgin Atlantic
7.4
Good
635 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

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 Portsmouth 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 airport do you fly into for flights to Las Vegas from Portsmouth?

    Las Vegas Harry Reid Intl (LAS), located 6.2 mi from the city center, is the airport you fly into when you book flights from Portsmouth to Las Vegas. 18 airlines have flights to Harry Reid Intl from Portsmouth on a regular basis. Booking flights from Portsmouth to Las Vegas Harry Reid Intl should not be difficult; the airport handles an average of 0 inbound flights from Portsmouth per day.

  • What are the most reliable airlines from Portsmouth to Las Vegas?

    The top 3 most reliable airlines when flying from Portsmouth to Las Vegas are KLM (88%), Air France (88%) and Delta (88%).

  • What are the cheapest flights from Portsmouth to Las Vegas?

    While on average a flight from Portsmouth to Las Vegas is generally £1,925, our data shows the cheapest flight currently is £596. When looking at the most popular route, (Southampton Eastleigh - Las Vegas Harry Reid Intl), you can expect to pay £669 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth 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 Portsmouth to Las Vegas?

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to Las Vegas (average of £689). Flying from Portsmouth to Las Vegas in July is currently the most expensive (average of £1,020). 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

Travelling to a place near Portsmouth?

Book flights to Portsmouth if you plan to visit one of these locations
Kingman
Henderson
Primm
Paradise

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Top 10 airlines flying from Portsmouth to Las Vegas

Discover the top 10 airlines that operate flights from Portsmouth to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 30 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£253Average£399FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Air TransatCheapest£346Average£604FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapest£407Average£467FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapest£450Average£655FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£450Average£671FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£466Average£717FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£469Average£639FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£493Average£618FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£496Average£734FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapest£496Average£628FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Portsmouth to Las Vegas?

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Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Las Vegas?

Cheapflights helps you find that perfect flight to Las Vegas from Portsmouth by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Portsmouth to Las Vegas with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portsmouth to Las Vegas, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Portsmouth to Las Vegas become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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