$298 Cheap Flights from Las Vegas (LAS) to London (LHR)

View $298 flight on Sun, Mar 8, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $298 for one-way flights and $444 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$444 Roundtrip, found 2 hours ago
$444
Roundtrip
found 2 hours ago
Select Iberia flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $444 found 2 hours ago
Air Canada
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$444 Roundtrip, found 2 hours ago
$444
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $444 found 2 hours ago
Delta
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$444 Roundtrip, found 2 hours ago
$444
Roundtrip
found 2 hours ago
Select Delta flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $444 found 2 hours ago
American Airlines
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$444 Roundtrip, found 2 hours ago
$444
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $444 found 2 hours ago
Virgin Atlantic
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$444 Roundtrip, found 2 hours ago
$444
Roundtrip
found 2 hours ago
Select Virgin Atlantic flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $444 found 2 hours ago
British Airways
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$448 Roundtrip, found 2 hours ago
$448
Roundtrip
found 2 hours ago
Select British Airways flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $448 found 2 hours ago
American Airlines
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$454 Roundtrip, found 2 hours ago
$454
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $454 found 2 hours ago
United
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$458 Roundtrip, found 2 hours ago
$458
Roundtrip
found 2 hours ago
Select United flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $458 found 2 hours ago
KLM
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$496 Roundtrip, found 2 hours ago
$496
Roundtrip
found 2 hours ago
Select KLM flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $496 found 2 hours ago
Air France
Sun, Oct 19 - Tue, Nov 4
LAS
Las Vegas
LHR
London
$496 Roundtrip, found 2 hours ago
$496
Roundtrip
found 2 hours ago
Select Air France flight, departing Sun, Oct 19 from Las Vegas to London, returning Tue, Nov 4, priced at $496 found 2 hours ago

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

October is typically the cheapest month to fly

From $455 - $1,126 per traveler.

Graph displaying average flight prices per month

Alternative airports near London

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

Select flight to Gatwick LGW. Cheapest option available. Average driving time to city center is 52 minutes. Flights from $588
LGW
Gatwick
Cheapest
Average driving time to city center52 min
Flights from $588
Select flight to London City LCY. Closest option available. Average driving time to city center is 21 minutes. Flights from $762
LCY
London City
Closest
Average driving time to city center21 min
Flights from $762
Flights from Las Vegas (LAS) to London (LHR)
Origin airport
Harry Reid Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, Alaska Airlines, 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
$443
Distance
5216 mi
Average flight time
17 hours 57 mins

Las Vegas to London Flights

The cheapest times to fly from Las Vegas to London

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

 

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

Sunday is one of the best days to book for cheap flights from Las Vegas to London: 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 Las Vegas to London

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 Las Vegas to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $298 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 Las Vegas to London 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 Las Vegas to London 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 Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR) cost?
Score cheap return flights from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR) starting at $522. Book a seat and start your adventure. 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 British Airways flight leaving LAS on August 18 2025 and touching down at LHR. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from LAS to LHR?
The cheapest flights from LAS to LHR 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 Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR)?
You can fly directly from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR) on a British Airways flight.
What is the cheapest airline that flies from LAS to LHR?
Travel from LAS to LHR with American Airlines. This carrier currently offers the cheapest one-way fare on this route, starting from $438. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LAS on October 14 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR)?
Every day on average, 2 nonstop flights take off from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR). Choose the departure that best suits your travel plans.
What are the most popular departure times for flights from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR)?
Flights between LAS and LHR are busiest at 8 PM. If you want a more relaxed atmosphere and possibly cheaper fares, choose a time outside the usual busy windows.
What day of the week has the most flights from LAS to LHR?
Sunday offers the most flights from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR). Consider traveling on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR)?
Harry Reid Intl. Airport (LAS)'s first flight to Heathrow Airport (LHR) is at approximately 6:20PM UTC-8. With a travel duration of 10h 5m, you'll arrive at around 12:25PM UTC+0.
How long does it take to fly from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR)?
Flights from LAS to LHR have an average travel time of 9 hours and 58 minutes. The distance between these two airports is 5,200 mi.
What airline has the least delays from LAS to LHR?
Delta Air Lines has the best performance for on-time direct flights from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR), with an on-time score of 93%. Use the Expedia App to look up your flight status before you go and get immediate updates about any trip changes.
What is the best time to fly from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR)?
Choose a flight from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR) that leaves before 3 PM to reduce the likelihood of delays. Later departures have a 22% higher chance of being canceled, on average.**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 London from Harry Reid Intl. Airport (LAS)?
You can arrive at Heathrow Airport (LHR) or Gatwick Airport (LGW) when you travel to London on a direct flight from Harry Reid Intl. Airport (LAS).
Is it cheaper to buy a plane ticket from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR) last-minute?
Holding off until just before your departure to book a flight from LAS to LHR generally means paying more. While you may come across some last-minute offers, they're not always guaranteed. Keep your travel plans flexible for a better chance of getting a bargain.
Is it cheaper to book a LAS to LHR flight and hotel package?
Compared with arranging flights and hotels separately, booking a LAS to LHR flight and hotel package with Expedia could result in significant savings. What's more, having it all in one place takes the hassle out of planning your trip. Simply pick your flights and choose from our wide range of stays, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to Heathrow Airport (LHR)?
Typically, it's possible to reschedule or cancel your LAS to LHR flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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London nearby Airports

London

Las Vegas to Gatwick
$521.11
Las Vegas to London City
$605.01
Las Vegas to Stansted
$2,131.51
*Available to One Key members.