$781 Cheap United flights Las Vegas (LAS) to London (LHR)

View $781 flight on Thu, May 21, 2026Opens in a new window

$781 Cheap United flights Las Vegas (LAS) to London (LHR)

Prices were available within the past 7 days and start at $781 for one-way flights and $1,067 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, May 21 - Thu, Jun 4
LAS
Las Vegas
LHR
London
$1,067 Roundtrip, found 14 hours ago
$1,067
Roundtrip
found 14 hours ago
Select United flight, departing Thu, May 21 from Las Vegas to London, returning Thu, Jun 4, priced at $1,067 found 14 hours ago
United
Thu, May 21 - Sat, Jun 6
LAS
Las Vegas
LHR
London
$1,089 Roundtrip, found 16 hours ago
$1,089
Roundtrip
found 16 hours ago
Select United flight, departing Thu, May 21 from Las Vegas to London, returning Sat, Jun 6, priced at $1,089 found 16 hours ago
United
Thu, May 21 - Sat, Jun 6
LAS
Las Vegas
LHR
London
$1,100 Roundtrip, found 16 hours ago
$1,100
Roundtrip
found 16 hours ago
Select United flight, departing Thu, May 21 from Las Vegas to London, returning Sat, Jun 6, priced at $1,100 found 16 hours ago
United
Thu, May 21 - Thu, Jun 4
LAS
Las Vegas
LHR
London
$1,161 Roundtrip, found 14 hours ago
$1,161
Roundtrip
found 14 hours ago
Select United flight, departing Thu, May 21 from Las Vegas to London, returning Thu, Jun 4, priced at $1,161 found 14 hours ago

Find the cheapest month to fly from Las Vegas (LAS) to London (LHR)

February is typically the cheapest month to fly

From $525 - $940 per traveler.

Travel information

Origin airport
Harry Reid Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, United, Virgin Atlantic, WestJet
Popular airline
Finnair
Distance
8345 km
Average flight time
17 hours 52 mins

Explore a world of travel with Expedia