Find cheap flights from California to London Heathrow Airport

LHR

Find cheap flights from California to London Heathrow Airport

Round-trip
Economy
Washington (WAS)
London Heathrow
Fri 8/14
Fri 8/21
Any month
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Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

Good to know

Low season

November Best time to beat the crowds with an average 5% drop in price.

High season

June Most popular time to fly with an average 24% increase in price.

Average price of a round-trip

$658 (avg. price over the last 2 weeks)

Good deal for a round-trip

$351 or less

FAQs for booking California to London Heathrow Airport flights

Which airlines have a flexible cancellation policy for flights from California to London Heathrow due to COVID-19?

Which airlines apply social distancing measures on flights from California to London Heathrow due to COVID-19?

How does KAYAK find such low prices on flights from California to London Heathrow Airport?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to London Heathrow Airport?

What is the Hacker Fare option on flights from California to London Heathrow Airport?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to London Heathrow Airport?

Top 3 airlines serving California to London Heathrow

Scores according to KAYAK customer reviews

7.5
Aeromexico
Overall score based on 9,283 reviews
7.6
Boarding
7.5
Comfort
7.9
Crew
7.3
Entertainment
7.1
Food
Airline reviews
Read more about Aeromexico

Book cheap flights from California to London Heathrow Airport

Recent round-trip flight deals

10/18
Sun
1 stop
TAP AIR PORTUGAL
17h 15m
SFO - LHR
10/25
Sun
1 stop
TAP AIR PORTUGAL
28h 30m
LHR - SFO
10/18
Sun
1 stop
Multiple Airlines
17h 15m
SFO - LHR
11/4
Wed
2 stops
Multiple Airlines
30h 25m
LHR - SFO
11/2
Mon
1 stop
Aeromexico
18h 35m
LAX - LHR
11/11
Wed
1 stop
Aeromexico
18h 55m
LHR - LAX
10/6
Tue
1 stop
Austrian Airlines
14h 50m
SMF - LHR
10/16
Fri
1 stop
Austrian Airlines
22h 07m
LHR - SMF
10/6
Tue
1 stop
Brussels Airlines
16h 55m
SMF - LHR
10/16
Fri
1 stop
Brussels Airlines
21h 07m
LHR - SMF
11/3
Tue
1 stop
Air New Zealand
15h 40m
SMF - LHR
11/10
Tue
1 stop
Air New Zealand
28h 32m
LHR - SMF
1/5
Tue
1 stop
Delta
16h 37m
BUR - LHR
1/19
Tue
2 stops
Delta
22h 19m
LHR - BUR
1/5
Tue
2 stops
KLM
20h 07m
BUR - LHR
1/19
Tue
2 stops
KLM
17h 38m
LHR - BUR
11/1
Sun
1 stop
Fiji Airways
13h 05m
SJC - LHR
11/19
Thu
1 stop
Fiji Airways
13h 05m
LHR - SJC
10/18
Sun
1 stop
Multiple Airlines
17h 15m
SFO - LHR
11/1
Sun
2 stops
Multiple Airlines
27h 30m
LHR - SFO
11/1
Sun
1 stop
Major Airline
15h 09m
SJC - LHR
11/19
Thu
nonstop
Major Airline
11h 05m
LHR - SJC
11/2
Mon
1 stop
GOL
13h 40m
OAK - LHR
11/9
Mon
2 stops
GOL
28h 16m
LHR - OAK
11/2
Mon
1 stop
China Airlines
13h 40m
OAK - LHR
11/9
Mon
2 stops
China Airlines
18h 11m
LHR - OAK
10/31
Sat
1 stop
Singapore Airlines
26h 50m
OAK - LHR
11/8
Sun
2 stops
Singapore Airlines
24h 11m
LHR - OAK
Show more results

Recent one-way flight deals

8/16
Sun
3 stops
Multiple Airlines
47h 05m
LAX - LHR
8/18
Tue
3 stops
Multiple Airlines
42h 05m
LAX - LHR
8/28
Fri
3 stops
Multiple Airlines
34h 10m
LAX - LHR
9/30
Wed
1 stop
Lufthansa
16h 41m
ONT - LHR
10/7
Wed
2 stops
Austrian Airlines
16h 35m
SJC - LHR
10/2
Fri
1 stop
Air New Zealand
20h 35m
SAN - LHR
8/21
Fri
2 stops
TAP AIR PORTUGAL
22h 14m
LAX - LHR
10/7
Wed
2 stops
Icelandair
23h 45m
SJC - LHR
10/7
Wed
2 stops
SWISS
19h 40m
SJC - LHR
10/7
Wed
2 stops
Brussels Airlines
17h 30m
SJC - LHR
9/1
Tue
3 stops
Multiple Airlines
39h 10m
LAX - LHR
10/14
Wed
1 stop
Delta
16h 00m
ONT - LHR
10/1
Thu
1 stop
Ethiopian Air
13h 50m
SAN - LHR
10/7
Wed
2 stops
Air India
23h 25m
SJC - LHR
9/21
Mon
2 stops
TAP AIR PORTUGAL
27h 15m
SAN - LHR
10/2
Fri
1 stop
Major Airline
33h 05m
SAN - LHR
7/23
Thu
2 stops
SAS
45h 00m
SAN - LHR
Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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