Skip to content

Flights · LON → LAS

London to Las Vegas

Best fare, round trip

$644

−13%

below its usual $740
you keep $96

Found
Depart
Mon 11 Jan
Return
Mon 11 Jan
Stay
1 night
Flight
1 stop · 13.5h
Airline
United

Most of this route’s monthly lows fall between $661 and $935. The drop beats 32% of measured fares on the board, over 5 observed months.

Check this fare Compare sellers

Cached fare — the booking search re-prices live before you pay.

United StatesLas VegasAbsurd by design — and the closest airport to Zion, Death Valley and the Grand Canyon’s west rim.Best windowMar–May · Oct–NovAirportsHarry Reid (LAS)Every route into Las Vegas

Your own dates

Search London to Las Vegas for the days you want.

Trip options: Round-trip · Economy · 1 adult
Travellers: 1 adult

Fare seasonality

When this route gets cheap.

Fares bottom out in January around $644 and peak in December near $1,095, 70% dearer, across the 5 months we track. The cheapest itinerary we are tracking makes one stop and takes about 13.5 hours outbound, on a 1-night trip — ticketed under United, which on a connecting fare need not operate every leg. At $644 for 8,401 km each way, that works out to about $38 per 1,000 km flown. That is below the $44 per 1,000 km typical of long-haul fares here. Across the 21 departure cities we track at a similar distance from Las Vegas, this fare ranks 3rd — 13% above the $569 from Stockholm. That puts it in the cheaper half of the 36 routes of similar length we watch out of London, where the middle fare is $671. The best time to be in Las Vegas: Mar–May · Oct–Nov.

The 8 days we hold a cached fare for

Press a date to compare its fares

The median cached fare across this calendar is 26% higher than when tracking began on 8 Aug — $806 then versus $1,015 now, across 18 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $601, on 19 Nov.

These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.

Cached fares · checked 15 Oct 2026

Cheapest in Jan, around $644

13% below the $740 typical fare

CheapestBelow usualUsualAbove usualPress a month to compare its fares

Cheapest round-trip fare found each month, London to Las Vegas, from cached prices.

Route facts

Airports
Heathrow (LHR) · Gatwick (LGW) · Stansted (STN) · Luton (LTN) ↔ Harry Reid (LAS)
Flight time
≈13.5 hours outbound
Distance
≈8,401 km each way
Typical price
$740 round-trip (seasonal median)
Airlines on the board
United
Itineraries
Connections on current fares
Best months to visit
Mar–May · Oct–Nov

Good to know

LON → LAS, answered.

Is $644 a good price for London to Las Vegas?

Only slightly. The seasonal median is around $740 round-trip and this fare is 13% under it. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.

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

Across 5 months of cached-fare history, Jan comes out cheapest on this route. The best months to actually be in Las Vegas are Mar–May · Oct–Nov — when those overlap, that's your window.

How far in advance should I book LON → Las Vegas?

We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 5 months of cached fares, Jan comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.

Are there nonstop flights from London to Las Vegas?

The current cheapest fares involve a connection, ticketed under United. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.

Are these prices guaranteed?

No — these are cached fares found on real searches (this one on 17 October). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.

Next step

Sleeping in Las Vegas?

Lock the flight first — then compare stays for 11 Jan '27 · same-day return.

Browse hotels

Missed it?

Cached fares expire. This route has a feed of its own — follow it and the next LON → LAS drop reaches you as soon as we find it.

Follow this route’s feed

Keep browsing

Related routes on the board.

flight.deals app

Keep the fare board one tap away.

Install flight.deals on your Home Screen. It opens without browser chrome while current fares and comparisons still load from the live site.