$565 Cheap Flights from London (LHR) to Las Vegas (LAS)

Popular airlines from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from London to Las Vegas (LHR-LAS)

Prices were available within the past 7 days and start at $565 for one-way flights and $724 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Aer Lingus
Lufthansa
Swiss International Air Lines
United
Austrian Airlines
British Airways
Air Canada
British Airways
Brussels Airlines

Find the cheapest month to fly from London (LHR) to Las Vegas (LAS)

February is typically the cheapest month to fly

From $543 - $831 per traveler.

Graph displaying average flight prices per month

Alternative airports near Las Vegas

Prices were available within the past 7 days. Prices and availability are subject to change.

Flights from London (LHR) to Las Vegas (LAS)
Origin airport
Heathrow
Destination airport
Harry Reid Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, United, Virgin Atlantic, WestJet
Roundtrip price
$724
Distance
5216 mi
Average flight time
2 hours 42 mins

London to Las Vegas Flights

The cheapest times to fly from London 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 London to Las Vegas are during the month of September. You can find some of the cheapest flights from London to Las Vegas with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from London 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 London 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 London to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $565 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 London 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 London 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 Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS) cost?
Snag cheap return flights starting at $811 from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Delta flight leaving LHR on August 18 2025 and touching down at LAS. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from LHR to LAS?
The cheapest flights from LHR 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 Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS)?
When setting off from Heathrow Airport (LHR), you can get on a nonstop flight to Harry Reid Intl. Airport (LAS) with British Airways.
What is the cheapest airline that flies from LHR to LAS?
With prices starting from $1711 for a one-way journey from LHR to LAS, British Airways is currently the cheapest carrier operating this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LHR on October 8 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS)?
With an average of 2 nonstop flights departing from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS) daily, you'll be taking off on vacation soon enough.
What are the most popular departure times for flights from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS)?
More passengers fly between LHR and LAS at 4 PM than at any other point in the day. Looking to skip the crowds? Travel outside of rush hours and you could save on your ticket as well.
What day of the week has the most flights from LHR to LAS?
If you jet off on a Wednesday, you'll get the widest range of choices for flights from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS)?
Catch the earliest flight at around 12:30PM UTC+0, departing from Heathrow Airport (LHR). You'll be flying for roughly 11h, coming in to land at Harry Reid Intl. Airport (LAS) at approximately 3:30PM UTC-8.
How long does it take to fly from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS)?
The average flight duration from LHR to LAS is 10 hours and 48 minutes, covering a total distance of 5,200 mi.
What is the best time to fly from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS)?
Select a flight from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time are on average 22% more likely to be 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.
What airports do you fly into for Las Vegas from Heathrow Airport (LHR)?
Harry Reid Intl. Airport (LAS) is the only airport in Las Vegas with direct flights from Heathrow Airport (LHR). Check out the available options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS) last-minute?
Last-minute bookings from LHR to LAS are usually more expensive. To lock in the best prices, start looking for flights well ahead of time. That said, if your travel plans are flexible, you may find a cheap ticket right before your journey.
Is it cheaper to book a LHR to LAS flight and hotel package?
Compared with arranging flights and hotels separately, booking a LHR to LAS flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place will take the stress out of planning your trip. Simply pick your flights and select from our wide range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Harry Reid Intl. Airport (LAS)?
If you booked your LHR to LAS flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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