Cheap flights from London Heathrow Airport to Las Vegas from £343

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAS
26 Dec — 2 Jan1
1 adult
1 adult, Economy, 0 bags

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

Cheap flight deals from Heathrow to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 November 2025.

Round-trip from

£477

One-way from

£343

Popular in

August

Cheapest in

January

Average price

£641

Good round-trip deal

£541 or less

Good one-way deal

£560 or less
British Airways
  • British Airways
  • 19/1-28/2
  • 2 total stops
  • 48h 20m total
  • London to Las Vegas
9/12
  • 9/12
  • 3 total stops
  • 52h 43m total
  • London to Las Vegas
Highest demand for flights based on searches. 8% potential increase in price (£44 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in November 2025
Price to beat on a round-trip flight from London Heathrow to Las Vegas Harry Reid Intl.
Price to beat on a one-way flight from London Heathrow to Las Vegas Harry Reid Intl.

Find flight deals from Heathrow to Las Vegas

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Las Vegas
Explore the most affordable flight options available from Heathrow to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 November 2025.

Wed 3/1217:00LHR - LAS
2 stops37h 55mFinnair
Sun 7/1219:00LAS - LHR
2 stops29h 15mFinnair
Deal found 25/11£478
Tue 2/1210:15LHR - LAS
1 stop20h 23mIberia
Thu 11/1208:00LAS - LHR
1 stop14h 50mIberia
Deal found 25/11£481
Wed 17/1214:10LHR - LAS
2 stops26h 59mAmerican Airlines
Mon 29/1211:59LAS - LHR
1 stop16h 21mAmerican Airlines
Deal found 24/11£482
Wed 17/1214:10LHR - LAS
2 stops26h 59mAmerican Airlines
Tue 23/1220:55LAS - LHR
Nonstop9h 55mAmerican Airlines
Deal found 24/11£484
Mon 8/1208:20LHR - LAS
1 stop15h 29mBritish Airways
Sun 14/1217:02LAS - LHR
1 stop12h 58mBritish Airways
Deal found 24/11£485
Sat 6/1207:50LHR - LAS
1 stop18h 00mBritish Airways
Tue 9/1209:05LAS - LHR
1 stop16h 10mBritish Airways
Deal found 25/11£485
Sat 6/1207:50LHR - LAS
1 stop18h 00mBritish Airways
Wed 10/1206:00LAS - LHR
1 stop22h 05mBritish Airways
Deal found 24/11£486
Sat 27/1213:00LHR - LAS
1 stop15h 30mMultiple Airlines
Sun 4/115:10LAS - LHR
1 stop17h 25mMultiple Airlines
Deal found 24/11£487
Thu 4/1216:05LHR - LAS
Nonstop10h 45mAmerican Airlines
Tue 9/1213:31LAS - LHR
1 stop12h 54mAmerican Airlines
Deal found 25/11£489
Wed 3/1210:05LHR - LAS
1 stop18h 30mIberia
Sat 13/1210:31LAS - LHR
1 stop13h 19mIberia
Deal found 24/11£490
Tue 2/1208:50LHR - LAS
1 stop17h 00mBritish Airways
Mon 15/1206:00LAS - LHR
1 stop21h 30mBritish Airways
Deal found 25/11£491
Mon 15/1216:55LHR - LAS
1 stop29h 07mFinnair
Wed 7/111:01LAS - LHR
2 stops35h 19mFinnair
Deal found 25/11£492

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 26 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Las Vegas that are best for you.

Fly from

Heathrow

Fly to

Las Vegas

Route

Depart

Return

Price

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 8/1

16:05-18:50

Nonstop10h 45m

Las Vegas Harry Reid Intl

Wed 21/1

11:57-09:40

1 stop13h 43m

£497

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 27/2

12:10-23:53

1 stop19h 43m

Las Vegas Harry Reid Intl

Thu 5/3

11:28-12:20

1 stop16h 52m

£505

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 10/4

11:45-18:35

1 stop14h 50m

Las Vegas Harry Reid Intl

Fri 1/5

14:40-13:30

1 stop14h 50m

£535

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 10/4

11:45-18:35

1 stop14h 50m

Las Vegas Harry Reid Intl

Thu 30/4

06:00-10:30

1 stop20h 30m

£535

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 7/5

13:10-19:43

1 stop14h 33m

Las Vegas Harry Reid Intl

Sun 10/5

13:33-10:50

1 stop13h 17m

£537

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Sat 3/1

10:45-18:31

1 stop15h 46m

Las Vegas Harry Reid Intl

Wed 29/7

13:05-10:30

1 stop13h 25m

£542

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 30/4

16:25-17:32

1 stop33h 07m

Las Vegas Harry Reid Intl

Sun 3/5

14:01-07:20

1 stop33h 19m

£559

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 27/4

15:15-22:40

1 stop15h 25m

Las Vegas Harry Reid Intl

Fri 1/5

11:07-08:05

1 stop12h 58m

£559

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 18/12

11:45-22:51

1 stop19h 06m

Las Vegas Harry Reid Intl

Wed 24/12

00:59-12:05

1 stop27h 06m

£568

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 15/12

08:55-21:47

1 stop20h 52m

Las Vegas Harry Reid Intl

Sun 4/1

23:59-07:05

1 stop23h 06m

£576

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 19 results
1
2

Best time to book a flight from Heathrow to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Las Vegas. Price data was last updated on 21 November 2025.

The best time to book flights from London Heathrow Airport to Las Vegas is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Las Vegas (average of £477). Flying from London Heathrow Airport to Las Vegas in July is currently the most expensive (average of £575). 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.

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

Find hourly flight availability from Heathrow to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 November 2025.

When flying from London Heathrow Airport to Las Vegas, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 6% versus a flight at midday.

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

Use this chart to determine the cheapest time to fly return from Heathrow to Las Vegas. Price data was last updated on 2 November 2025.

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

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated 26 November 2025.
Check out reviews from past customers who have flown with KLM, Finnair, andVirgin Atlantic from London Heathrow Airport to Las Vegas to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.2

Overall

7.7

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Food

7.2

Overall

7.7

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Food

7.2

Overall

7.7

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Food

7.2

Overall

7.7

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Food

7.2

Overall

7.7

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Food

7.2

Overall

7.7

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

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

    When you’re flying to Las Vegas from Heathrow you’ll find your flight always travelling from the main airport in Heathrow, London Heathrow Airport (LHR.) This airport is also one of the most popular airports in all of the UK, seeing flights arrive and depart from all around the world. It’s also extremely popular with some of the world’s leading airlines. Las Vegas is gifted with six airports, but you will commonly find that when your flight reaches Las Vegas that it will typically reach the main airport of Las Vegas, also known as McCarran International Airport (LAS). Similarly, with this airport, it is extremely popular with some of the leading airlines that you can travel with, and also sees flights arrive and depart from all around the world. The average flight time from Heathrow to Las Vegas is around 10h 40min.

  • Which airlines fly directly from Heathrow to Las Vegas?

    Direct flights to Las Vegas from Heathrow are easy to find and run frequently. When flying directly from Heathrow to Vegas you will find that the approximate flight duration is 10h 40min but this can slightly differ depending on which airlines that you’re travelling with. Your flight from London Heathrow Airport (LHR) will most likely always reach McCarran International Airport (LAS) and can be done some from some of the world’s leading airlines. Popular airlines include Iberia, United Airlines, Virgin Atlantic, British Airways, Air France, Finnair, and more. If you are looking for a flight that requires a stopover you will find that these same airlines will most likely run your connecting flight route.

  • What are the stopover options between Heathrow to Las Vegas?

    Connecting flights that require stopovers to Las Vegas from Heathrow run frequently and are easy to find. These types of flights are usually also a cheap form of travel between Las Vegas and Heathrow. You can filter your flight search for either one or two stopovers. The airline that you choose to travel to will impact what stopover your flight will have. Stopover flights are easy and let you experience a variety of great locations. Popular stopover locations include Los Angeles Airport (LAX), Chicago O’Hare International Airport (ORD), Denver International Airport (DEN), San Francisco Airport (SFO), and more.

  • Do I need a passport or visa to fly from Heathrow to Las Vegas?

    When travelling to Las Vegas from Heathrow you will need both a valid passport and an ESTA visa. Your passport must be valid for the time of your travel and have a valid six months of duration left on your passport. You can expect that an ESTA visa will cost you around $14 (£9.90) and can easily be booked before you’re due to travel.

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

    Located just 6.2 mi from the city center, Las Vegas Harry Reid Intl is the airport most travelers will use when flying to Las Vegas from London Heathrow. Booking flights from London Heathrow to Harry Reid Intl (LAS) should be relatively easy as there are 6 daily inbound flights from London Heathrow from 17 different airlines.

  • How long is the flight from London Heathrow Airport to Las Vegas?

    For as low as £497, Finnair can have you in Las Vegas from London Heathrow Airport in 10h 45m. Airlines will cover a distance of 5213 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    According to our current data, Norse Atlantic UK (£366), WestJet (£394), and JetBlue (£448) offers the cheapest pricing from London Heathrow Airport to Las Vegas. Norse Atlantic UK is priced at 46% lower than the current average price of a flight leaving 3 months from now.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Las Vegas on time: KLM (73%), Air France (69%), Delta (69%).

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

    Looking at all options, your cheapest flight can be booked for £472. While the most popular route (London Heathrow - Las Vegas Harry Reid Intl) can be booked for £413 on average, our data indicates £1,337 when flying from London Heathrow Airport to Las Vegas.

  • Where are the most common stopover locations when flying from London Heathrow Airport to Las Vegas?

  • What are some popular things to do or see while on a stopover in Dallas?

    Most Dallas visitors opt to spend their time experiencing American Airlines Center, Dallas Farmers Market, and Dallas Zoo. Travelers on a layover in Dallas can visit American Airlines Center, Dallas Farmers Market, and Dallas Zoo, by traveling 15.0 mi, 16.6 mi, and 16.7 mi, respectively after landing at Dallas/Fort Worth. Travellers can book a car hire at Dallas/Fort Worth for about £36 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a stopover in Chicago?

    Chicago travellers tend to visit Magnificent Mile, Grant Park, and River North more than any other notable places. Travellers on a stopover in Chicago can visit Magnificent Mile, Grant Park, and River North, by travelling 15.5 mi, 16.2 mi, and 15.0 mi, respectively after landing at Chicago O'Hare Intl. Those landing in Chicago looking to spend some time exploring during their stopover can hire a car for about £37 per day.

  • Where are the least popular stopover locations for London Heathrow Airport to Las Vegas flights?

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

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Las Vegas (average of £477). Flying from London Heathrow Airport to Las Vegas in July is currently the most expensive (average of £575). 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.

See more FAQs

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Book flights to Las Vegas if you plan to visit one of these locations
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Fly from Heathrow to Las Vegas on these airlines

Choose from the following airlines for your flight from Heathrow to Las Vegas. Flights are based on user searches made on Cheapflights and were last updated on 26 November 2025.

Top 10 airlines flying from Heathrow to Las Vegas

Discover the top 10 airlines that operate flights from Heathrow to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 26 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£366Average£415FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
WestJetCheapest£394Average£513FlexibilityNo cancel feeOn-time60%
Search WestJet flights
JetBlueCheapest£448Average£564FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£454Average£543FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapest£455Average£602FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£464Average£582FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£478Average£638FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
DeltaCheapest£487Average£795FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FinnairCheapest£498Average£603FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£505Average£703FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Las Vegas for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Las Vegas with no change fees.

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

Yes! Start tracking prices for Heathrow to Las Vegas flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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