Find flights
Deals
When to book
Airlines
FAQs
English
Round-trip from | £360 |
---|---|
One-way from | £270 |
Popular in | December |
Cheapest in | September |
Average price | £480 |
Good round-trip deal | £390 or less |
Good one-way deal | £439 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Thu 26/2
06:30-21:14
2 stops22h 44m
Ontario
Mon 2/3
06:45-12:50
1 stop22h 05m
LondonLos Angeles
LHR - LAX
LHRLAX
London Heathrow
Tue 20/1
10:20-17:00
1 stop14h 40m
Los Angeles
Fri 30/1
19:30-09:35
2 stops30h 05m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 22/11
15:35-14:35
2 stops31h 00m
San Francisco
Sat 29/11
16:40-18:30
1 stop17h 50m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 7/3
15:35-14:35
2 stops31h 00m
San Francisco
Sat 14/3
17:40-18:50
2 stops18h 10m
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Mon 22/12
10:45-19:50
1 stop17h 05m
Ontario
Mon 12/1
13:00-10:00
1 stop13h 00m
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Thu 25/12
10:45-22:33
1 stop19h 48m
Ontario
Mon 5/1
17:05-10:00
1 stop32h 55m
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Wed 24/12
12:30-10:05
1 stop29h 35m
Ontario
Mon 5/1
17:05-10:00
1 stop32h 55m
LondonLong Beach
LHR - LGB
LHRLGB
London Heathrow
Fri 27/2
13:00-16:23
2 stops35h 23m
Long Beach Municipal
Tue 3/3
12:59-06:50
2 stops33h 51m
LondonLos Angeles
LHR - LAX
LHRLAX
London Heathrow
Fri 9/1
06:40-17:00
1 stop18h 20m
Los Angeles
Fri 16/1
19:30-09:35
2 stops30h 05m
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Fri 9/1
12:20-22:38
1 stop18h 18m
Ontario
Sun 11/1
06:45-10:30
1 stop19h 45m
Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to California (average of £340). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £417). 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.
When flying from London Heathrow Airport to California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 15% versus a flight at midday.
Travellers seeking maximum savings on their London Heathrow Airport to California flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from LHR to USCA are scheduled on a Wednesday (53 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (49 on average).
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
Abisola,Oct 2025
LOS - CDG
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
Abisola,Oct 2025
LOS - CDG
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
Abisola,Oct 2025
LOS - CDG
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
Abisola,Oct 2025
LOS - CDG
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
Abisola,Oct 2025
LOS - CDG
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
Abisola,Oct 2025
LOS - CDG
Cheapflights helps you search for flights from Heathrow to California via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Cheapflights simply makes it quick and affordable to book flights from Heathrow to California by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to California, users can toggle the no change fees filter when performing a flight search.
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to California from Heathrow today and book when prices fit your budget.