Question 1

What are the cheapest airlines flying from Las Vegas to London Heathrow Airport round-trip?

Accepted Answer

Our cheapest airline available from Las Vegas to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as £541 on this airline. Additional options worth looking into are Air Canada and Scandinavian Airlines, starting at £542 and £542 round-trip. You may be able to fly from Las Vegas to London Heathrow Airport for 18% less than the average price by searching for these airlines.

Question 2

What are the cheapest airlines to fly from Las Vegas to London Heathrow Airport one-way?

Accepted Answer

To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at £276. WestJet flights start at £280 while deals on Air Canada start at £284 one-way.

Question 3

How far ahead should I book a flight from Las Vegas to London Heathrow Airport?

Accepted Answer

To ensure you get the cheapest price possible for a flight from Las Vegas to London Heathrow Airport, you should look to book at least 67 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 4

What is the cheapest month to book a flight from Las Vegas to London Heathrow Airport?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Las Vegas to London Heathrow Airport (average of £112). Flying from Las Vegas to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 5

What is the cheapest day to fly from Las Vegas to London Heathrow Airport?

Accepted Answer

Travellers seeking maximum savings on their Las Vegas to London Heathrow Airport flight should consider departing on Saturday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from Las Vegas to London Heathrow Airport

Accepted Answer

The most flights from LAS to LHR are scheduled on a Wednesday (12 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (8 on average).

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Question 9

What are the cheapest flights from Las Vegas to London Heathrow Airport?

Accepted Answer

Looking at all options, your cheapest flight can be booked for £283. While the most popular route (Las Vegas Harry Reid Intl - London Heathrow) can be booked for £464 on average our data indicates £952 when flying from Las Vegas to London Heathrow Airport.

Question 10

What are the most reliable airlines from Las Vegas to London Heathrow Airport?

Accepted Answer

Consider Finnair (93%), American Airlines (87%) or Aer Lingus (87%) when booking your flight. These represent the most reliable airlines when flying from Las Vegas to London Heathrow Airport.

Question 11

What is the cheapest day to fly round-trip from Las Vegas to London Heathrow Airport?

Accepted Answer

Departing on a Friday is a good option for securing a great price. You can expect to save up to 30% when planning your travel around this day of the week.

Question 12

How far in advance should I book a flight from Las Vegas to London Heathrow Airport?

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 16 days in advance, which can save you up to 9% on flights from Las Vegas to London Heathrow Airport compared to booking the week you need them. Waiting 16 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £375. For sooner than that we have options available in the next 3 days from £732.

Question 13

What is the cheapest month to fly from Las Vegas to London Heathrow Airport?

Accepted Answer

January can be a great time to fly to London Heathrow Airport from Las Vegas with a flight ticket averaging about £585. Cheapflights users have found deals in the month of January for as cheap as £243. The most expensive prices can be found in the month of June.

Question 14

What is the cheapest time of day to fly from LAS to LHR?

Accepted Answer

When flying from Las Vegas to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 25% versus a flight at midday.

Question 15

What airport do you fly from for flights from Las Vegas to London Heathrow?

Accepted Answer

Las Vegas Harry Reid Intl (LAS) is the airport you will fly out of if you book a flight from Las Vegas to London Heathrow. You should not have trouble finding flights to London Heathrow from Harry Reid Intl; the airport handles an average of 9 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Las Vegas airport to London Heathrow. It is only a 6.2 mi journey to Harry Reid Intl (LAS) from Las Vegas’s city center.

Question 16

Can I find deals for flights from Las Vegas to Heathrow that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Las Vegas to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 17

How can I find direct flights from Las Vegas to Heathrow?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to Heathrow.

Question 18

Can I find deals for business class flights from Las Vegas to Heathrow?

Accepted Answer

Yes. Cheapflights offers flight deals from Las Vegas to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 19

How does Cheapflights help users find flights from Las Vegas to Heathrow?

Accepted Answer

Cheapflights helps you search for flights from Las Vegas to Heathrow 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.

Question 20

Why should you use Cheapflights to find cheap flight tickets from Las Vegas to Heathrow?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Las Vegas to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 21

Can Cheapflights find flights from Las Vegas to Heathrow with no change fees?

Accepted Answer

Cheapflights does show flights with no change fees to all users. To see these options for flights from Las Vegas to Heathrow, users can toggle the no change fees filter when performing a flight search.

Question 22

Can Cheapflights notify me if prices for flights from Las Vegas to Heathrow become cheaper?

Accepted Answer

Yes, Cheapflights offers price alerts on Las Vegas to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Round-trip from	£540
One-way from	£276
Popular in	June
Cheapest in	January
Average price	£962
Good round-trip deal	£365 or less
Good one-way deal	£319 or less

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£459	Average£674	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£468	Average£685	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Cheap flights from Las Vegas to London Heathrow Airport from £276

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to London Heathrow are usually found in January or February, booked 67 days in advance, depart on a Saturday or Sunday and return on a Tuesday

Cheap flight deals from Las Vegas to Heathrow

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Find flight deals from Las Vegas to Heathrow

Cheapest flights from Las Vegas to HeathrowExplore the most affordable flight options available from Las Vegas to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Explore the most affordable flight options available from Las Vegas to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Las Vegas to London Heathrow Airport that are best for you.

Best time to book a flight from Las Vegas to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Las Vegas with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Las Vegas to London Heathrow Airport

How far ahead should I book a flight from Las Vegas to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Las Vegas to Heathrow. Price data was last updated on 9 June 2025.

What is the cheapest month to book a flight from Las Vegas to London Heathrow Airport?

What is the cheapest time of day to fly from LAS to LHR?

Find hourly flight availability from Las Vegas to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

Weekly flight availability from Las Vegas to London Heathrow Airport

Explore weekly flight availability from Las Vegas to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 June 2025.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

See what other customers who have flown with Delta, SWISS and United Airlines from Las Vegas to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Las Vegas to London Heathrow?

What are the cheapest airlines flying from Las Vegas to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from Las Vegas to London Heathrow Airport one-way?

What are the most reliable airlines from Las Vegas to London Heathrow Airport?

What are the cheapest flights from Las Vegas to London Heathrow Airport?

Can I find deals for flights from Las Vegas to Heathrow that include hotel bookings?

How can I find direct flights from Las Vegas to Heathrow?

Can I find deals for business class flights from Las Vegas to Heathrow?

What is the cheapest month to book a flight from Las Vegas to London Heathrow Airport?

Travelling to a place near Las Vegas?

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Alternative routes for Las Vegas to Heathrow

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Top 2 airlines flying from Las Vegas to Heathrow

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How does Cheapflights help users find flights from Las Vegas to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Las Vegas to Heathrow?

Can Cheapflights find flights from Las Vegas to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Las Vegas to Heathrow become cheaper?

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Cheapest flights from Las Vegas to Heathrow
Explore the most affordable flight options available from Las Vegas to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.