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Cheap flights from Portsmouth to Las Vegas from £468

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAS
23 נוב' — 30 נוב'1
1 adult
1 adult, Economy, 0 bags

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 24 אוקטובר 2025.

Round-trip from

£468

Popular in

February

Cheapest in

September

Average price

£677
Virgin Atlantic
  • Virgin Atlantic
  • 4/12-9/12
  • 3 total stops
  • 27h 57m total
  • Portsmouth to Las Vegas
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£270 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£78 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find 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 24 אוקטובר 2025.

ה' 4/1208:50SOU - LAS
1 stop13h 25mVirgin Atlantic
ג' 9/1209:38LAS - SOU
2 stops14h 32mVirgin Atlantic
Deal found 23/10£468
ו' 5/1217:30SOU - LAS
1 stop28h 45mVirgin Atlantic
ו' 12/1207:25LAS - SOU
2 stops17h 25mVirgin Atlantic
Deal found 21/10£523
ש' 6/1209:25SOU - LAS
2 stops20h 48mVirgin Atlantic
ש' 13/1207:25LAS - SOU
2 stops17h 25mVirgin Atlantic
Deal found 22/10£524
ו' 5/1208:40SOU - LAS
2 stops23h 40mDelta
ו' 12/1207:25LAS - SOU
2 stops17h 25mDelta
Deal found 21/10£526
ש' 6/1209:30SOU - LAS
1 stop16h 20mAer Lingus
ש' 13/1219:35LAS - SOU
1 stop16h 05mAer Lingus
Deal found 22/10£610
ד' 31/1217:30SOU - LAS
1 stop28h 45mDelta
ג' 6/116:05LAS - SOU
1 stop16h 55mDelta
Deal found 21/10£634
ד' 31/1217:30SOU - LAS
1 stop28h 45mDelta
ב' 5/119:30LAS - SOU
2 stops52h 55mDelta
Deal found 21/10£649
ו' 7/1108:40SOU - LAS
2 stops39h 28mVirgin Atlantic
ה' 13/1109:33LAS - SOU
2 stops14h 32mVirgin Atlantic
Deal found 23/10£658

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 24 אוקטובר 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

ה' 4/12

08:50-14:15

1 stop13h 25m

Las Vegas Harry Reid Intl

ג' 9/12

09:38-08:10

2 stops14h 32m

£468

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

ש' 6/12

09:25-22:13

2 stops20h 48m

Las Vegas Harry Reid Intl

ש' 13/12

16:05-08:10

1 stop32h 05m

£528

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

ג' 10/3

08:40-15:15

1 stop13h 35m

Las Vegas Harry Reid Intl

ד' 18/3

11:30-17:25

2 stops22h 55m

£564

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

ה' 26/3

08:50-22:05

2 stops20h 15m

Las Vegas Harry Reid Intl

ב' 30/3

20:25-17:00

1 stop12h 35m

£568

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

א' 8/3

09:30-21:05

2 stops19h 35m

Las Vegas Harry Reid Intl

ג' 17/3

00:35-17:25

2 stops33h 50m

£576

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

ה' 26/3

18:05-19:43

2 stops32h 38m

Las Vegas Harry Reid Intl

א' 29/3

00:45-08:50

2 stops24h 05m

£579

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

ג' 13/1

12:25-17:50

1 stop13h 25m

£532

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

ג' 3/2

12:25-17:50

1 stop13h 25m

£532

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

ב' 2/2

20:10-17:50

1 stop29h 40m

£537

SouthamptonLas Vegas

SOU - LAS

SOULAS

Southampton Eastleigh

א' 18/1

20:25-17:50

2 stops53h 25m

£557

Flights are sorted by cheapest return flights first.

Deals found on 22/10

Showing 1-10 of 16 results
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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, November is the cheapest month in which you can book a flight from Portsmouth to Las Vegas (average of £298). Flying from Portsmouth to Las Vegas in June is currently the most expensive (average of £546). 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 24 אוקטובר 2025.

A simple way to save on the total cost of your ticket is to fly from Portsmouth to Las Vegas at midday. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the evening.

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 16 December 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 evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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. 19 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 13h 25m. The distance between Portsmouth and Las Vegas is about 5206 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 (65%), Air France (65%) and Delta (65%).

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

    While on average a flight from Portsmouth to Las Vegas is generally £1,203, our data shows the cheapest flight currently is £337. When looking at the most popular route, (Southampton Eastleigh - Las Vegas Harry Reid Intl), you can expect to pay £468 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, November is the cheapest month in which you can book a flight from Portsmouth to Las Vegas (average of £298). Flying from Portsmouth to Las Vegas in June is currently the most expensive (average of £546). 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 Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Kingman
Henderson
Paradise

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 24 אוקטובר 2025.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£313Average£418FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Air TransatCheapest£332Average£586FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapest£389Average£500FlexibilityNo cancel feeOn-time60%
Search WestJet flights
JetBlueCheapest£441Average£572FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£447Average£608FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapest£449Average£594FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£458Average£574FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£472Average£630FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
DeltaCheapest£480Average£801FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FinnairCheapest£492Average£634FlexibilityNo cancel feeOn-time76%
Search Finnair 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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