452 € Las Vegas (LASA) to London Heathrow (LHR) Cheap Flights

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Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Las Vegas to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Las Vegas to London Heathrow? Find the lowest prices on one-way and return tickets right here.

London.452 € per passenger.Departing Tue, 20 Jan, returning Thu, 29 Jan.Return flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Las Vegas Harry Reid International on Tue, 20 Jan, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departs from London Heathrow on Thu, 29 Jan, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From 452 €, select.

London.453 € per passenger.Departing Tue, 10 Feb, returning Tue, 17 Feb.Return flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Las Vegas Harry Reid International on Tue, 10 Feb, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departs from London Heathrow on Tue, 17 Feb, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From 453 €, select.

London.468 € per passenger.Departing Tue, 14 Apr, returning Tue, 21 Apr.Return flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Las Vegas Harry Reid International on Tue, 14 Apr, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departs from London Heathrow on Tue, 21 Apr, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From 468 €, select.

London.470 € per passenger.Departing Wed, 15 Oct, returning Wed, 22 Oct.Return flight with SWISS.Outbound indirect flight with SWISS, departs from Las Vegas Harry Reid International on Wed, 15 Oct, arriving in London Heathrow.Inbound indirect flight with SWISS, departs from London Heathrow on Wed, 22 Oct, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From 470 €, select.

London.471 € per passenger.Departing Tue, 30 Sep, returning Mon, 13 Oct.Return flight with SWISS and Austrian Airlines.Outbound indirect flight with SWISS, departs from Las Vegas Harry Reid International on Tue, 30 Sep, arriving in London Heathrow.Inbound indirect flight with Austrian Airlines, departs from London Heathrow on Mon, 13 Oct, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From 471 €, select.

London.476 € per passenger.Departing Sun, 9 Nov, returning Tue, 9 Dec.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from Las Vegas Harry Reid International on Sun, 9 Nov, arriving in London Heathrow.Inbound indirect flight with Virgin Atlantic, departs from London Heathrow on Tue, 9 Dec, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From 476 €, select.

London.478 € per passenger.Departing Sun, 12 Oct, returning Wed, 3 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from Las Vegas Harry Reid International on Sun, 12 Oct, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Wed, 3 Dec, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From 478 €, select.

London.478 € per passenger.Departing Wed, 3 Dec, returning Wed, 10 Dec.Return flight with Finnair.Outbound direct flight with Finnair departs from Las Vegas Harry Reid International on Wed, 3 Dec, arriving in London Heathrow.Inbound direct flight with Finnair departs from London Heathrow on Wed, 10 Dec, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From 478 €, select.

Find the cheapest month to fly from Las Vegas to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Las Vegas to London Heathrow flights are currently cheapest in January.

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Direct flights from Las Vegas to London Heathrow

Las Vegas to London Heathrow: Alternative routes

Compare routes from Las Vegas to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Las Vegas to London: Flight information

The things to know before you go.

Cheapest flight found	452 €
Cheapest month to fly	January
Average flight time	9 hrs, 57 mins
Most popular airline	KLM
Average flights per week	53

Finding cheap flights from Las Vegas to London Heathrow: Frequently asked questions

How much are return flights from Las Vegas to London Heathrow?

The best price we found for a return flight from Las Vegas to London Heathrow is 452 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Las Vegas to London Heathrow?

9 hours and 57 minutes is the average flight time from Las Vegas to London Heathrow.

Which airlines fly direct from Las Vegas to London Heathrow?

KLM, American Airlines and British Airways fly direct from Las Vegas to London Heathrow.

How many flights are there a week from Las Vegas to London Heathrow?

As of September 2025, there are 53 flights per week flying from Las Vegas to London Heathrow.

When is the cheapest time to fly from Las Vegas to London Heathrow?

The cheapest month to fly from Las Vegas to London Heathrow is usually January.

Which upcoming date is cheapest to fly from Las Vegas to London Heathrow Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Las Vegas to London Heathrow Airport on Tuesday, 20 January 2026.

Can I get a direct flight from Las Vegas to London Heathrow Airport?

Yes – the average flight time is 9 hours and 57 minutes.

How can I find the best flight deal to London Heathrow?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Las Vegas to London Heathrow Airport (LHR): What you need to know

Planning your trip begins with working out where you'll fly out of in Las Vegas. Harry Reid Airport (formerly McCarran Airport) (LAS) is the city's main airport, so explore your options for reserving a flight from Las Vegas to London Heathrow Airport (LHR) taking off from here.
Take a direct Las Vegas to London Heathrow Airport flight and you'll be in the air for around 10 hours.
London Heathrow Airport is located in London. The city operates on the UTC+0 timezone and is seven hours ahead of Las Vegas.
The busiest route is from Harry Reid Airport (formerly McCarran Airport) (LAS) to London Heathrow Airport (LHR), with 15 direct services every week. If you want to be on your way right away, the earliest flight from LAS to LHR is the 5:05pm British Airways service. If a later start suits your schedule, the last departure is at 11:20pm with Virgin Atlantic.
For stress-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your flight from Las Vegas to LHR.
With more people on the move during high season, it's wise to get to your terminal even earlier. Two hours for domestic flights and up to four for international trips will allow for additional wait times.

Airports in Las Vegas

Harry Reid Airport (formerly McCarran Airport) (LAS)

You can find a direct flight from Las Vegas to London Heathrow Airport (LHR) departing from Harry Reid Airport (formerly McCarran Airport) (LAS).
British Airways is a well-known carrier that operates direct flights from Las Vegas to London Heathrow Airport taking off from LAS.
British Airways sees the most traveller bookings for flights from LAS to LHR.
Among carriers on this route, Virgin Atlantic has the highest rate of on-time arrivals.
Think about adding a stopover to find cheap flights from Las Vegas to LHR. Just uncheck 'Direct flights only' when browsing departures from Harry Reid Airport (formerly McCarran Airport) (LAS). Break up your trip (and maybe get a better deal) by stopping at one of these popular airports:
- Los Angeles International Airport (LAX)
- Phoenix Sky Harbour International Airport (PHX)
- Incheon International Airport (ICN)
LAS is about 19 kilometres from central Las Vegas. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 15 minutes or so to get there, depending on traffic. If you're taking public transport, expect the travel time to be around 1 hour.
In search of a convenient hotel close to Harry Reid Airport (formerly McCarran Airport)? If you're catching an early flight from Las Vegas to London Heathrow Airport, these stays will put you moments from check-in:
82.07% of flights departing from Harry Reid Airport (formerly McCarran Airport) land at their destination according to schedule. With its reliable on-time performance, disruptions are unlikely when flying out of LAS.
LAS is located at 5757 Wayne Newton Boulevard.

About London Heathrow Airport (LHR)

The last thing you need is a long journey to your hotel if you're arriving on a late flight from Las Vegas to London Heathrow Airport. Get comfy at one of these accommodation options near LHR instead:
Fast-track your adventure by picking up a London Heathrow Airport rental car. Grab a set of wheels from Surprice, U-Save or Green Motion to explore London and beyond.
Booking your vehicle around one week in advance of your Las Vegas to London Heathrow Airport flight can help you get a cheaper deal.

Getting from London Heathrow Airport (LHR) to central London

London Heathrow Airport is roughly 26 kilometres from central London. How long it takes to get there by cab or car hire depends on the time of day. Do some research before you go.
Travelling by public transport takes around 1 hour.

How to find the cheapest flights from Las Vegas to London Heathrow Airport (LHR)

Right now, 189 € is the lowest price we've found for a one-way ticket from Las Vegas to London Heathrow Airport. The cheapest price for a return flight is 452 €. Remember fares may change due to availability at the time of booking.
Book six months before flying. Pricing trends suggest that this is the ideal window for finding cheap flights from Las Vegas to LHR.
The best month for landing cheap Las Vegas to London Heathrow Airport tickets is November. Use the 'Whole month' tool to compare flight prices, then choose the dates offering the lowest fares.
Save time looking for cheap plane tickets from Las Vegas to LHR by creating a Price Alert. We'll send you an email or push notification on the app when a new discounted fare appears.
Tailor your flights using filters. Choose your ideal arrival and departure times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Las Vegas to London Heathrow Airport.

The best time to fly from Las Vegas to London Heathrow Airport (LHR)

July is when most people book flights from Las Vegas to London Heathrow Airport (LHR). Plan your visit to London in February if you prefer a quieter experience.
The warmest month in London is July, with temperatures ranging between 11ºC (52ºF) and 26ºC (79ºF). Lock in your Las Vegas to LHR plane ticket then if you enjoy this type of weather.
Look for cheap tickets from Las Vegas to London Heathrow Airport in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 9ºC (48ºF).

More about London

Start your London trip right by choosing the perfect place to stay. As soon as you've booked your flight from Las Vegas to London Heathrow Airport, explore our range of accommodation options including:
There are so many things to discover in this city, it can be hard to figure out where to start. The British Museum, Westminster Abbey and Big Ben are top sights which should be on any well-planned London itinerary.

Explore more of the United Kingdom

You've done London, now it's time to discover other corners of the United Kingdom. Journey around 153 kilometres north-west to Birmingham to tick off its leading sights. From The Windsor Castle to Birmingham Museum & Art Gallery and Birmingham Hippodrome Theatre, there's plenty to keep you on the go.
Around 145 kilometres west of London, Bristol is another essential stop in the United Kingdom. Get a taste of what this destination has to offer at Banksey, Banksy's You Don't Need Planning Permission to Build Castles in the Sky and Clifton Suspension Bridge.