$663 Cheap Flights from Southampton (SOU) to Las Vegas (LAS)

View $663 flight on Mon, Mar 2, 2026Opens in a new window

Popular airlines from Southampton (SOU) to Harry Reid Intl. Airport (LAS)

Find available prices by choosing your travel dates.

Cheap Flights from Southampton to Las Vegas (SOU-LAS)

Prices were available within the past 7 days and start at $663 for one-way flights and $1,060 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Feb 7 - Mon, Feb 23
SOU
Southampton
LAS
Las Vegas
$1,060 Roundtrip, found 4 days ago
$1,060
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Feb 7 from Southampton to Las Vegas, returning Mon, Feb 23, priced at $1,060 found 4 days ago
Virgin Atlantic
Sat, Feb 7 - Mon, Feb 23
SOU
Southampton
LAS
Las Vegas
$1,060 Roundtrip, found 4 days ago
$1,060
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Sat, Feb 7 from Southampton to Las Vegas, returning Mon, Feb 23, priced at $1,060 found 4 days ago
Delta
Sat, Feb 7 - Mon, Feb 23
SOU
Southampton
LAS
Las Vegas
$1,070 Roundtrip, found 4 days ago
$1,070
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Feb 7 from Southampton to Las Vegas, returning Mon, Feb 23, priced at $1,070 found 4 days ago
Delta
Sat, Feb 7 - Mon, Feb 23
SOU
Southampton
LAS
Las Vegas
$1,086 Roundtrip, found 4 days ago
$1,086
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Feb 7 from Southampton to Las Vegas, returning Mon, Feb 23, priced at $1,086 found 4 days ago
Delta
Sat, Feb 7 - Mon, Feb 23
SOU
Southampton
LAS
Las Vegas
$1,096 Roundtrip, found 4 days ago
$1,096
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Feb 7 from Southampton to Las Vegas, returning Mon, Feb 23, priced at $1,096 found 4 days ago
Aer Lingus
Sat, May 10 - Wed, May 14
SOU
Southampton
LAS
Las Vegas
$1,106 Roundtrip, found 2 hours ago
$1,106
Roundtrip
found 2 hours ago
Select Aer Lingus flight, departing Sat, May 10 from Southampton to Las Vegas, returning Wed, May 14, priced at $1,106 found 2 hours ago
Delta
Sat, Feb 7 - Mon, Feb 23
SOU
Southampton
LAS
Las Vegas
$1,107 Roundtrip, found 4 days ago
$1,107
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Feb 7 from Southampton to Las Vegas, returning Mon, Feb 23, priced at $1,107 found 4 days ago
KLM
Sat, Feb 7 - Mon, Feb 23
SOU
Southampton
LAS
Las Vegas
$1,113 Roundtrip, found 4 days ago
$1,113
Roundtrip
found 4 days ago
Select KLM flight, departing Sat, Feb 7 from Southampton to Las Vegas, returning Mon, Feb 23, priced at $1,113 found 4 days ago
Virgin Atlantic
Sat, Feb 7 - Mon, Feb 23
SOU
Southampton
LAS
Las Vegas
$1,115 Roundtrip, found 4 days ago
$1,115
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Sat, Feb 7 from Southampton to Las Vegas, returning Mon, Feb 23, priced at $1,115 found 4 days ago
Loganair
Sat, Feb 7 - Mon, Feb 23
SOU
Southampton
LAS
Las Vegas
$1,170 Roundtrip, found 4 days ago
$1,170
Roundtrip
found 4 days ago
Select Loganair flight, departing Sat, Feb 7 from Southampton to Las Vegas, returning Mon, Feb 23, priced at $1,170 found 4 days ago
Flights from Southampton (SOU) to Las Vegas (LAS)
Origin airport
Southampton
Destination airport
Harry Reid Intl.
Roundtrip price
$1,059
Distance
5209 mi

Southampton to Las Vegas Flights

The cheapest times to fly from Southampton to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Southampton to Las Vegas are during the month of February. You can find some of the cheapest flights from Southampton to Las Vegas with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Southampton to Las Vegas

Sunday is one of the best days to book for cheap flights from Southampton to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Southampton to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Southampton to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $663 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Southampton to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Southampton to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Southampton Airport (SOU) to Harry Reid Intl. Airport (LAS) cost?
Discover the latest flight deals from SOU to LAS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SOU to LAS?
The cheapest flights from SOU to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Southampton Airport (SOU) to Harry Reid Intl. Airport (LAS)?
You can’t take a direct flight to Harry Reid Intl. Airport (LAS) from Southampton (SOU). However, you can easily reach Las Vegas without any layovers by leaving from Heathrow Airport (LHR).
What is the cheapest airline that flies from SOU to LAS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SOU to LAS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Southampton Airport (SOU) to Harry Reid Intl. Airport (LAS)?
You’ll need to take a flight with a layover when traveling from Southampton Airport (SOU) to Harry Reid Intl. Airport (LAS). Direct flights don’t operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SOU to LAS?
You’ll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Southampton Airport (SOU) to Harry Reid Intl. Airport (LAS)?
To avoid possible delays on the Southampton Airport (SOU) to Harry Reid Intl. Airport (LAS) route, aim to fly before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Southampton Airport (SOU) to Harry Reid Intl. Airport (LAS) last-minute?
Waiting until just before your trip to book a flight from SOU to LAS generally means paying more. While you may find some last-minute offers, they’re not always guaranteed. Allow some flexibility in your schedule to boost your chances of snagging a bargain.
Is it cheaper to book a SOU to LAS flight and hotel package?
Compared with arranging flights and hotels separately, booking a SOU to LAS flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place takes the hassle out of planning your trip. Just pick your flights and choose from our wide range of hotels, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Southampton Airport (SOU) to Harry Reid Intl. Airport (LAS)?
Typically, you’re able to reschedule or cancel your SOU to LAS flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline’s guidelines and fees on flight changes, or if you’d like further details, head to our Customer Service portal.

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*Available to One Key members.