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Cheap flights from Portsmouth to Las Vegas

LHR — LAS
30 Oct — 6 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portsmouth to Las Vegas

Popular in

June

Cheapest in

January

Average price

£617
Highest demand for flights based on searches. 12% potential increase in price (£68 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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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?

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.

Related info for your journey

  • 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. 16 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 (78%), Air France (78%) and Delta (78%).

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

    While on average a flight from Portsmouth to Las Vegas is generally £1,499, our data shows the cheapest flight currently is £420. When looking at the most popular route, (Southampton Eastleigh - Las Vegas Harry Reid Intl), you can expect to pay £617 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
Paradise
Furnace Creek
Henderson

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Top 10 airlines flying from Portsmouth to Las Vegas

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£226Average£554FlexibilityNo cancel feeOn-time67%
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Aer LingusCheapest£365Average£783FlexibilityNo cancel feeOn-timeN/A
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WestJetCheapest£415Average£478FlexibilityNo cancel feeOn-time60%
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LufthansaCheapest£416Average£556FlexibilityNo cancel feeOn-time76%
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JetBlueCheapest£429Average£621FlexibilityNo cancel feeOn-time62%
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Alaska AirlinesCheapest£431Average£551FlexibilityNo cancel feeOn-time75%
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Virgin AtlanticCheapest£441Average£644FlexibilityNo cancel feeOn-time72%
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United AirlinesCheapest£443Average£568FlexibilityNo cancel feeOn-time69%
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DeltaCheapest£444Average£632FlexibilityNo cancel feeOn-timeN/A
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British AirwaysCheapest£461Average£701FlexibilityNo cancel feeOn-time70%
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Fly with Cheapflights

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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