Heathrow's security lines can be lengthy; ensure all liquids are in one bag to avoid delays.

Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $667 (Netflights) |
One-way from | $431 (Trip.com) |
Popular in | August |
Cheapest in | February |
Average price | $809 |
Good round-trip deal | $822 or less |
Good one-way deal | $616 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonLas Vegas
LCY - LAS
LCYLAS
London City
Wed 12/17
7:45 am-10:14 pm
2 stops22h 29m
Las Vegas Harry Reid Intl
Tue 12/23
4:05 pm-7:35 pm
1 stop19h 30m
LondonLas Vegas
LCY - LAS
LCYLAS
London City
Fri 12/26
8:05 pm-6:11 pm
2 stops30h 06m
Las Vegas Harry Reid Intl
Tue 1/6
4:05 pm-5:20 pm
1 stop17h 15m
LondonLas Vegas
LCY - LAS
LCYLAS
London City
Thu 12/4
10:00 am-10:14 pm
2 stops20h 14m
Las Vegas Harry Reid Intl
Thu 12/18
4:05 pm-4:35 pm
1 stop16h 30m
LondonLas Vegas
LCY - LAS
LCYLAS
London City
Wed 12/3
6:55 pm-2:15 pm
1 stop27h 20m
Las Vegas Harry Reid Intl
Wed 12/10
7:25 am-8:50 am
2 stops17h 25m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Thu 12/25
12:30 pm-8:56 pm
1 stop16h 26m
Las Vegas Harry Reid Intl
Sun 1/4
10:55 pm-4:50 pm
Nonstop9h 55m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Thu 1/29
4:05 pm-6:50 pm
Nonstop10h 45m
Las Vegas Harry Reid Intl
Tue 2/3
8:55 pm-2:50 pm
Nonstop9h 55m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Fri 1/16
8:50 am-10:02 pm
2 stops21h 12m
Las Vegas Harry Reid Intl
Wed 2/25
7:15 pm-12:50 pm
2 stops33h 35m
LondonLas Vegas
LHR - LAS
LHRLAS
London Heathrow
Sat 12/6
4:00 pm-6:40 pm
Nonstop10h 40m
Las Vegas Harry Reid Intl
Mon 12/22
8:45 pm-2:40 pm
Nonstop9h 55m
LondonLas Vegas
STN - LAS
STNLAS
London Stansted
Tue 11/25
6:30 am-5:50 pm
1 stop19h 20m
Las Vegas Harry Reid Intl
Tue 12/2
7:35 pm-9:20 pm
1 stop17h 45m
LondonLas Vegas
LTN - LAS
LTNLAS
London Luton
Tue 11/25
9:00 am-5:50 pm
1 stop16h 50m
Las Vegas Harry Reid Intl
Tue 12/2
7:35 pm-8:05 pm
1 stop16h 30m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
The best time to book flights from London to Las Vegas is 23 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, November is the cheapest month in which you can book a flight from London to Las Vegas (average of $397). Flying from London to Las Vegas in June is currently the most expensive (average of $728). 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.
One of the essential ways to save on airfare from London to Las Vegas is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 22% on airfare.
The most flights from LON to LAS are scheduled on a Monday (9 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 on average).
Dallas (DFW) – chosen by Cheapflights users on 40% of 1-stop itineraries from London 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 Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 25m.
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$685 | Average$1,020 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$693 | Average$942 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$740 | Average$983 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$763 | Average$1,136 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$787 | Average$1,072 | FlexibilityNo cancel fee | On-time71% |