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Cheap flights from Portsmouth to Las Vegas from £730

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 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAS
8 Jun — 15 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Las Vegas

Enter your travel dates to find the best prices.

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 9 May 2026.

Wed 17/606:45
SOU
-
LAS
2 stops19h 50m
Multiple Airlines
Wed 24/620:25
LAS
-
SOU
2 stops16h 20m
Multiple Airlines
Deal found 5/5£857
Fri 14/806:45
SOU
-
LAS
1 stop14h 45m
Multiple Airlines
Fri 21/816:20
LAS
-
SOU
1 stop11h 40m
Multiple Airlines
Deal found 9/5£932
Wed 17/609:05
SOU
-
LAS
1 stop17h 30m
Virgin Atlantic
Wed 24/620:25
LAS
-
SOU
1 stop28h 10m
Virgin Atlantic
Deal found 5/5£944
Wed 17/609:05
SOU
-
LAS
1 stop17h 30m
KLM
Wed 24/607:05
LAS
-
SOU
2 stops17h 30m
KLM
Deal found 5/5£948
Fri 26/606:45
SOU
-
LAS
2 stops19h 50m
Multiple Airlines
Tue 30/615:45
LAS
-
SOU
1 stop18h 00m
Multiple Airlines
Deal found 7/5£952
Fri 13/1112:35
SOU
-
LAS
2 stops38h 15m
British Airways
Tue 17/1120:55
LAS
-
SOU
2 stops28h 50m
British Airways
Deal found 8/5£979

Find 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 9 May 2026.

Round-trip from

£857

One-way from

£730

Popular in

July

Cheapest in

January

Average price

£658
17/6-24/6
  • 17/6-24/6
  • 4 total stops
  • 36h 10m total
  • Portsmouth to Las Vegas
Search Deals
British Airways
  • British Airways
  • 23/10
  • 2 total stops
  • 21h 15m total
  • Portsmouth to Las Vegas
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£43 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 9 May 2026.
Use the filters below to find and compare flights from Portsmouth to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Wed 17/6

06:45-18:35

2 stops19h 50m

Las Vegas Harry Reid Intl

Wed 24/6

20:25-20:45

2 stops16h 20m

£857

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Fri 26/6

09:20-00:29

2 stops23h 09m

Las Vegas Harry Reid Intl

Tue 30/6

15:38-16:50

2 stops17h 12m

£973

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Thu 6/8

06:50-14:55

2 stops16h 05m

Las Vegas Harry Reid Intl

Mon 10/8

22:10-08:25

2 stops26h 15m

£1,000

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Fri 7/8

06:50-20:00

2 stops21h 10m

Las Vegas Harry Reid Intl

Mon 10/8

22:10-08:25

2 stops26h 15m

£1,000

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Fri 14/8

12:20-15:35

2 stops35h 15m

Las Vegas Harry Reid Intl

Fri 21/8

16:20-12:00

1 stop11h 40m

£1,050

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Sat 11/7

06:45-20:00

2 stops21h 15m

Las Vegas Harry Reid Intl

Sat 25/7

22:10-08:25

2 stops26h 15m

£1,211
Fastest return journey

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Thu 6/8

09:15-18:35

1 stop17h 20m

Las Vegas Harry Reid Intl

Tue 11/8

20:25-17:35

1 stop13h 10m

£1,372

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Sat 8/8

09:15-20:21

2 stops19h 06m

Las Vegas Harry Reid Intl

Tue 11/8

05:50-08:45

2 stops18h 55m

£1,376

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Fri 29/5

08:55-20:00

2 stops19h 05m

Las Vegas Harry Reid Intl

Fri 5/6

22:10-14:30

2 stops32h 20m

£1,379
Cheapest one-way

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

Fri 23/10

06:45-20:00

2 stops21h 15m

£730

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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 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 9 May 2026.

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.

Weekly flight availability from Portsmouth to Las Vegas

Explore weekly flight availability from Portsmouth to Las Vegas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 9 May 2026.

The most flights from P0R to LAS are scheduled on a Monday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

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.

  • How long is the flight from Portsmouth to Las Vegas?

    Departing from Portsmouth to Las Vegas will take you 16h 05m. The distance between Portsmouth and Las Vegas is about 5206 mi.

  • 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 Air France (88%), Delta (88%) and Virgin Atlantic (88%).

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

    While on average a flight from Portsmouth to Las Vegas is generally £1,223, our data shows the cheapest flight currently is £531. When looking at the most popular route, (Southampton Eastleigh - Las Vegas Harry Reid Intl), you can expect to pay £964 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.

See more FAQs

Travelling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Furnace Creek
Henderson

Browse thousands of different options on Cheapflights for your next trip

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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 9 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest£325Average£632FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapest£360Average£772FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£384Average£545FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapest£403Average£485FlexibilityNo cancel feeOn-time60%
Search WestJet flights
LufthansaCheapest£405Average£553FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
JetBlueCheapest£428Average£573FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
DeltaCheapest£432Average£693FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
IcelandairCheapest£439Average£507FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapest£456Average£570FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£460Average£643FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Portsmouth to Las Vegas via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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