At Heathrow, allow extra time for strict security checks. Ensure all liquids are in one small bag to avoid delays.

Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $624 (JetBlue) |
One-way from | $439 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $892 |
Good round-trip deal | $690 or less |
Good one-way deal | $755 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Sun 5/3
1:10 pm-7:43 pm
1 stop14h 33m
Las Vegas Harry Reid Intl
Wed 5/13
10:06 am-6:50 am
1 stop12h 44m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Fri 5/1
4:10 pm-10:51 pm
1 stop14h 41m
Las Vegas Harry Reid Intl
Wed 5/13
10:06 am-6:50 am
1 stop12h 44m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Mon 3/2
8:45 pm-5:50 pm
1 stop29h 05m
Las Vegas Harry Reid Intl
Sun 3/8
7:29 am-2:00 pm
1 stop23h 31m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Fri 2/27
2:25 pm-9:47 pm
1 stop15h 22m
Las Vegas Harry Reid Intl
Mon 3/2
7:00 am-6:35 am
1 stop15h 35m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Mon 2/9
10:35 am-6:32 pm
1 stop15h 57m
Las Vegas Harry Reid Intl
Fri 2/20
10:57 am-8:15 am
1 stop13h 18m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Wed 1/7
4:10 pm-10:47 am
1 stop26h 37m
Las Vegas Harry Reid Intl
Wed 1/14
9:00 am-6:25 am
1 stop13h 25m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Thu 3/5
7:30 am-8:46 pm
2 stops21h 16m
Las Vegas Harry Reid Intl
Sat 3/7
12:20 pm-6:20 am
1 stop34h 00m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Fri 1/16
4:05 pm-6:50 pm
Nonstop10h 45m
Las Vegas Harry Reid Intl
Sun 2/1
3:20 pm-12:05 pm
1 stop12h 45m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Sun 3/1
3:00 pm-11:34 pm
1 stop16h 34m
Las Vegas Harry Reid Intl
Sun 3/8
7:29 am-12:20 pm
1 stop21h 51m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Wed 2/11
2:45 pm-10:34 pm
1 stop15h 49m
Las Vegas Harry Reid Intl
Wed 4/1
9:00 am-6:20 am
1 stop13h 20m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*1 star |
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.
Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Las Vegas (average of $608). Flying from London Heathrow Airport to Las Vegas in July is currently the most expensive (average of $741). 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.
Unlike at noon, when flights are generally more expensive, you can save up to 18% on flights from London Heathrow Airport to Las Vegas by exploring options for tickets in the morning.
About 16% of weekly flights between London and Las Vegas have experienced delays in the past year, with the average delay time being 123 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Over the last year, American Airlines have had the lowest number of delays on this route, with just 11% of flights being delayed.
Dublin (DUB) – chosen by Cheapflights users on 50% of 1-stop itineraries from London Heathrow Airport to Las Vegas on Cheapflights.
San Francisco (SFO) is the most affordable 1-stop option, with an average round-trip price of $740.
Flights via Dublin (DUB) have the shortest average one-way travel time for 1-stop routes: 13h 40m.
Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 1h 34m.
Comfort
Crew
Food
Boarding
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Crew
Food
Boarding
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Crew
Food
Boarding
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Crew
Food
Boarding
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Crew
Food
Boarding
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Crew
Food
Boarding
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$651 | Average$982 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$652 | Average$1,072 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$680 | Average$1,010 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$693 | Average$872 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$763 | Average$1,136 | FlexibilityNo cancel fee | On-time77% |