United Cheap Flights from London to San Diego: UA LHR→SAN

View HK$13,681 flight on Sun, 26 Oct 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Prices were available within the past 7 days and start at HK$13,681 for one-way flights and HK$5,387 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, 3 Oct - Wed, 8 Oct
LHR
London
SAN
San Diego
HK$5,387 Return, found 6 days ago
HK$5,387
Return
found 6 days ago
Select United flight, departing Fri, 3 Oct from London to San Diego, returning Wed, 8 Oct, priced at HK$5,387 found 6 days ago
United
Fri, 3 Oct - Wed, 8 Oct
LHR
London
SAN
San Diego
HK$5,434 Return, found 6 days ago
HK$5,434
Return
found 6 days ago
Select United flight, departing Fri, 3 Oct from London to San Diego, returning Wed, 8 Oct, priced at HK$5,434 found 6 days ago
United
Fri, 3 Oct - Wed, 8 Oct
LHR
London
SAN
San Diego
HK$5,439 Return, found 6 days ago
HK$5,439
Return
found 6 days ago
Select United flight, departing Fri, 3 Oct from London to San Diego, returning Wed, 8 Oct, priced at HK$5,439 found 6 days ago
United
Fri, 3 Oct - Wed, 8 Oct
LHR
London
SAN
San Diego
HK$5,557 Return, found 6 days ago
HK$5,557
Return
found 6 days ago
Select United flight, departing Fri, 3 Oct from London to San Diego, returning Wed, 8 Oct, priced at HK$5,557 found 6 days ago
United
Fri, 3 Oct - Wed, 8 Oct
LHR
London
SAN
San Diego
HK$5,609 Return, found 6 days ago
HK$5,609
Return
found 6 days ago
Select United flight, departing Fri, 3 Oct from London to San Diego, returning Wed, 8 Oct, priced at HK$5,609 found 6 days ago
United
Sun, 26 Oct - Sat, 1 Nov
LHR
London
SAN
San Diego
HK$5,811 Return, found 1 day ago
HK$5,811
Return
found 1 day ago
Select United flight, departing Sun, 26 Oct from London to San Diego, returning Sat, 1 Nov, priced at HK$5,811 found 1 day ago
United
Sun, 26 Oct - Sat, 1 Nov
LHR
London
SAN
San Diego
HK$5,855 Return, found 1 day ago
HK$5,855
Return
found 1 day ago
Select United flight, departing Sun, 26 Oct from London to San Diego, returning Sat, 1 Nov, priced at HK$5,855 found 1 day ago
United
Sun, 26 Oct - Sat, 1 Nov
LHR
London
SAN
San Diego
HK$6,061 Return, found 1 day ago
HK$6,061
Return
found 1 day ago
Select United flight, departing Sun, 26 Oct from London to San Diego, returning Sat, 1 Nov, priced at HK$6,061 found 1 day ago
United
Sun, 26 Oct - Sat, 1 Nov
LHR
London
SAN
San Diego
HK$6,112 Return, found 1 day ago
HK$6,112
Return
found 1 day ago
Select United flight, departing Sun, 26 Oct from London to San Diego, returning Sat, 1 Nov, priced at HK$6,112 found 1 day ago
London to San Diego route information
Origin airport
Heathrow
Destination airport
San Diego Intl.
Distance
8756 km
Average flight time
3 hours 12 mins
*Available to Expedia members.