Find Cheap Flights from London Heathrow to San Francisco (LHR - SFO)

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Good to Know

Low Season:
February
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
17%
expected price increase
Average Price:
$1125
(avg. price over the last 2 weeks)
Good Deal:
$883
or less (round trip)

When to Book Flights from London Heathrow to San Francisco

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $883 or less.
The cheapest flight from London Heathrow to San Francisco was found 79 days before departure, on average.
Book at least 5 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is February.
Morning departure is around 6% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking London Heathrow to San Francisco Flights

How long does a flight from London Heathrow to San Francisco take?
An average nonstop flight takes 11h 05m, covering a distance of 5355 miles.
How many flights are there between London Heathrow and San Francisco?
There are 609 (nonstop) flights between London Heathrow and San Francisco per week, averaging 85 per day.
Which airlines provide the cheapest flights from London Heathrow to San Francisco?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($596), KLM ($597) and Lufthansa ($653).
Do I need a passport to fly between London Heathrow and San Francisco?
Yes.
Which airlines fly most frequently between London Heathrow and San Francisco?
Air New Zealand (12 times daily), Delta (8 times daily), Virgin Atlantic (8 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly London Heathrow to San Francisco?
For London Heathrow to San Francisco, Thursday is the cheapest day to fly on average and Saturday is the most expensive. Flying from San Francisco back to London Heathrow, the best deals are generally found on Sunday, with Wednesday being the most expensive.

Book cheap flights from London Heathrow to San Francisco (round-trip)

Airports
Origin
London
$596
only
$596
Destination
San Francisco
$596
only
$596
Thu, Apr 19
LHR
SFO
14h 25m
Sun, Apr 22
SFO
LHR
10h 35m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 3
LHR
SFO
13h 15m
Mon, May 7
SFO
LHR
12h 50m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1756 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
IAD
AMS
Good 7.3

787 is a great airplane. The 3-3-3 seat configuration leaves enough seat width to be just comfortable in coach.

AMS
NCL
Good 7.6

Pretty basic one hour flight so there's not much to complain about or praise about. I got some sleep which was good.

The crew had their general Dutch aloofness on form. Chatted to one of the stewardesses in Dutch up until she saw I had a British passport then she decided she could only speak English to me.

AMS
LAX
Okay 4.0

The cabin crew were pretty good. That's about all that was good.

I paid almost $400 for upgraded seats. When I got to the airport-- no seats-- both ways!! i didn't even have regular seat assignments. I had to choose from the last few seats available. The ticket agent, the gate agent and the cabin crew all did nothing to make up for the fact that their system screwed up and stuck me in a cramped coach seat in the back of the plane for 11 hours-- TWICE! Beyond that, KLM must have one of the oldest fleets in the sky. Both ways LAX->AMS->LAX, I was on a 30-35 year old 747 with no wifi, no power and a ten-year-old entertainment system. Never again.

AMS
BLL
Good 6.5

Nice seats, comfortable.

Again, no aisle seat for SkyTeam Gold member. Also, my baggage was lost. First bag arrived a day late, second after I had left Billund and it was six days before the bag with my clothes reached me. I was told I will have 100 euro credit for clothing, but in the winter and for 6 days, this was not even close to the amount I needed for clothing and necessities, to have my time here.

LAX
AMS
Mediocre 2.0

My bagage broke

I paid extra fee for extra bagage which was tv and i paid insurance my tv broke and no one responces for it

Tue, Mar 6
LHR
SFO
11h 05m
Tue, Mar 20
SFO
LHR
10h 30m
Trip: 14 days
6.1GoodShow reviews
Overall 6.1 Good
Based on 13 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
NBO
FRA
Excellent 9.3

There was plenty of room, great staff, no worries whatsoever.

The food on Lufthansa has definitely slipped since the last time I flew them a couple of years ago. The main courses are just plain bad. Everything else is good

LHR
SFO
Good 6.0

Ground crew in London was great. Flight was operated by United, hence United service and plane.

Flight delayed 2.5 hours due to fuel line leak but managed to cut off one of those hours in flight so only delayed 1.5 hours. Older plane so no screens at seats and movies were predetermined. On an 11 hour flight that sucks -- I had seen every single video. Three miserable babies but that is not the airline's fault. I have flown Lufthansa in the past and really thought they were tip top.

LHR
SFO
Good 7.3

The crew and in flight experience were excellent.

Terminal procedures, particularly a tarmac delay and understaffed customs and security personnel, jeopardized my London Heathrow connection in spite of the 80 minute layover. Itineraries with less than a two-hour connection should be discontinued as a fraudulent misrepresentation of the passenger's likely success. I will never fly through Heathrow again.

ABV
FRA
Good 6.0

staff

FRA
SFO
Okay 4.0

staff

major delay, poor communication andaccommodation considering delay

Mon, Mar 26
LHR
SFO
13h 40m
Fri, Apr 6
SFO
LHR
13h 35m
Trip: 12 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 4256 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
YYZ
DUB
Mediocre 2.0

Being charged $100 each way for checked baggage, no where on my itenerary did it mention that

BOS
DUB
Okay 5.6

The actual flight

Food and comfort. Seats too small and no leg room.

DUB
MAD
Good 6.3

Seats were larger with more leg room. Flight calm and without incident

No snack

DUB
YYZ
Excellent 10.0

They really did a great job, kept us informed about what was going on,staff was quick, organized and pleasant. I have to say, best food on a flight that I have had in a very LONG time,!

DUB
BOS
Good 7.6

Food was good. Entertainment selection was also good.

BUT. Entertainment got suspended a few times it was very annoying. Flight attendants passed right by us and almost forgot us

Sun, Jul 1
LHR
SFO
14h 46m
Sun, Jul 8
SFO
LHR
13h 15m
Trip: 8 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 59 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LHR
SFO
Mediocre 2.0

I was selected for additional screening at the gate. I have no problem with this at all. From the start I told them I am traveling with my fiancee. They tried to hold me back in a separate area after the screening and I once again told them my fiancee was waiting for me. One staff memeber walked with me half way back to get her and then disappeared. By the time I found her and came back, the staff memeber was no where to be found. Now we had lost are spot in the line and had to go to the back of the line. We spoke to 3 different staff people about what was going on and everyone said, oh the guy over there will help you. But no one did. The staff had No idea how to run a security check or handle paople. There was No working wifi! There was no tvs in the seats, only the old style in the aisle. The staff told me the plan was going to retire at the end of the month. The food was more for animals then for humans! We got updates by txt 10 mins before the staff updated the gate on our flight out from SFO. I have traveled all over the world with a lot of airlines and Never had such a poor service, but what is it to expect. It was United after all!

Refund of the whole flight.

LHR
SFO
Excellent 10.0

comfort, entertainment, food

nothing

LHR
SFO
Excellent 10.0

So much food!! They kept bringing food out the whole flight..The seats were great. It was a very comfortable flight

no complaints whatsoever!

LHR
SFO
Good 6.0

Service is super fast

LHR
SFO
Excellent 9.0

cabin was nice but cold

Fri, Jul 13
LHR
SFO
17h 40m
Sat, Aug 18
SFO
LHR
29h 15m
$1077
Trip: 37 days
6.0GoodShow reviews
Overall 6.0 Good
Based on 7 reviews
Overall
8.2
Boarding
8.2
Comfort
8.0
Crew
8.5
Entertainment
7.4
Food
7.5
SKP
VIE
Excellent 8.0

The fact that the luggage wasn’t included in the Austrian flight, nor anywhere was pointed out to that so I had to pay extra for it.

VIE
PRG
Mediocre 3.3

Flyght was terible

VIE
TLV
Mediocre 3.6

the crew were very nice polite and helpfull

the flihgt was 3 hours late because a person who did not hold a ticket got on the plane and refused to get off, how can this happen?? this is a major breach of security and made me feel very unsafe

LHR
SFO
Good 7.0

I paid for extra leg room to sit in economy plus. My friend who paid the same price as me for our original ticket, but didn't upgrade was put in the same row at no additional cost. The seatting pricing is rigged.

LHR
SFO
Good 6.6

So there ended up being issues with my inbound flight. It was very complicated and I had to wait in line at Heathrow airport for 45 min. I'm glad I arrived extra early. The service rep. was very nice and professional, but the system needs some improvements.

Tue, Apr 17
LHR
SFO
15h 00m
Mon, Apr 23
SFO
LHR
15h 15m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Mon, May 14
LHR
SFO
22h 50m
Mon, May 28
SFO
LHR
12h 50m
Trip: 15 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1756 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
IAD
AMS
Good 7.3

787 is a great airplane. The 3-3-3 seat configuration leaves enough seat width to be just comfortable in coach.

AMS
LAX
Okay 4.0

The cabin crew were pretty good. That's about all that was good.

I paid almost $400 for upgraded seats. When I got to the airport-- no seats-- both ways!! i didn't even have regular seat assignments. I had to choose from the last few seats available. The ticket agent, the gate agent and the cabin crew all did nothing to make up for the fact that their system screwed up and stuck me in a cramped coach seat in the back of the plane for 11 hours-- TWICE! Beyond that, KLM must have one of the oldest fleets in the sky. Both ways LAX->AMS->LAX, I was on a 30-35 year old 747 with no wifi, no power and a ten-year-old entertainment system. Never again.

BCN
AMS
Excellent 9.3

The food was excelent

I have to pay to pay a little more confort

DMM
AMS
Okay 5.6

Tiny old cramped plane.

TLV
AMS
Mediocre 2.0

Airlines issue

Profiling certain customers

Fri, Jun 8
LHR
SFO
15h 00m
Mon, Jun 11
SFO
LHR
20h 29m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Aug 31
LHR
SFO
13h 50m
Sun, Sep 9
SFO
LHR
13h 20m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1756 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
AMS
BLL
Good 6.5

Nice seats, comfortable.

Again, no aisle seat for SkyTeam Gold member. Also, my baggage was lost. First bag arrived a day late, second after I had left Billund and it was six days before the bag with my clothes reached me. I was told I will have 100 euro credit for clothing, but in the winter and for 6 days, this was not even close to the amount I needed for clothing and necessities, to have my time here.

BCN
AMS
Excellent 9.3

The food was excelent

I have to pay to pay a little more confort

AMS
DTW
Mediocre 2.0

Amesterdam airport employee was really rude

IAD
AMS
Good 7.3

787 is a great airplane. The 3-3-3 seat configuration leaves enough seat width to be just comfortable in coach.

AMS
NCL
Good 7.6

Pretty basic one hour flight so there's not much to complain about or praise about. I got some sleep which was good.

The crew had their general Dutch aloofness on form. Chatted to one of the stewardesses in Dutch up until she saw I had a British passport then she decided she could only speak English to me.

Sun, Apr 1
LHR
SFO
25h 30m
Mon, Apr 9
SFO
LHR
13h 35m
Trip: 9 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 4256 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
BOS
DUB
Okay 5.6

The actual flight

Food and comfort. Seats too small and no leg room.

DUB
BOS
Good 7.0

Pleasant crew and good food/snack service almost forgotten as I stood at the baggage carousel for 40 minutes.

Baggage claim very frustrating (40 minutes) particularly after 12 hours of airports and airplanes. Messed up our ground transportation plans for no apparent reason. Totally unexplained!

DUB
LHR
Excellent 8.0

Could not check in on-line from Dublin on either Air canada or Aer Linguis websites. Time to sort out this long-standing problem

DUB
YYZ
Excellent 10.0

They really did a great job, kept us informed about what was going on,staff was quick, organized and pleasant. I have to say, best food on a flight that I have had in a very LONG time,!

LHR
DUB
Excellent 8.0

Staff and service

Thu, Mar 15
LHR
SFO
11h 05m
Tue, Mar 20
SFO
LHR
10h 30m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 29
LHR
SFO
15h 00m
Thu, Jun 7
SFO
LHR
14h 15m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 2
LHR
SFO
30h 00m
Sat, Jun 16
SFO
LHR
28h 12m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Aug 13
LHR
SFO
19h 14m
Sun, Aug 26
SFO
LHR
27h 40m
Trip: 14 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 59 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LHR
SFO
Excellent 8.0

Quality of service was good in the plane

Not many good recent movies / shows on in flight entertainment. Food was okay. But, the quantity was too little. It took a really long time for a second boarding pass check at London airport. Other airlines don't usually ask for a second check in

LHR
SFO
Excellent 9.0

Fast check in Fast security line Upper Class Clubhouse Fast boarding Excellent onboard service Great crew

Old entertainment system Although the seats can be turned into a bed they don't fully recline

LHR
SFO
Excellent 10.0

Amazing food and drinks, and to top it off we were served a frozen ice cream treat during our flight.

LHR
SFO
Excellent 8.0

NA

LHR
SFO
Okay 5.0

There are lots of relatively new movies to choose from.

The complimentary headset breaks easily. Tray table was broken and they can't fix it. Very small bathrooms, knees almost touch the door when sitting down. Food selection for dinner ran out quickly, resulting in only 2 choices and one is hot spicy, so basically only one choice. All beverages are given out in small cups, even water is given out in small cups increments (finish in one gulp), they don't even give out small bottles of water. No complimentary packet (eye shades, socks etc.) , not even a barf bag for collecting trash.

Thu, Aug 9
LHR
SFO
17h 10m
Fri, Aug 24
SFO
LHR
14h 05m
Trip: 16 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1756 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
AMS
TPE
Excellent 9.3

Service impeccable!

They have one line of executive class after the kitchen and toilet, is very noisy.

AMS
LAX
Okay 4.0

The cabin crew were pretty good. That's about all that was good.

I paid almost $400 for upgraded seats. When I got to the airport-- no seats-- both ways!! i didn't even have regular seat assignments. I had to choose from the last few seats available. The ticket agent, the gate agent and the cabin crew all did nothing to make up for the fact that their system screwed up and stuck me in a cramped coach seat in the back of the plane for 11 hours-- TWICE! Beyond that, KLM must have one of the oldest fleets in the sky. Both ways LAX->AMS->LAX, I was on a 30-35 year old 747 with no wifi, no power and a ten-year-old entertainment system. Never again.

AMS
NCL
Good 7.6

Pretty basic one hour flight so there's not much to complain about or praise about. I got some sleep which was good.

The crew had their general Dutch aloofness on form. Chatted to one of the stewardesses in Dutch up until she saw I had a British passport then she decided she could only speak English to me.

IAD
AMS
Good 7.3

787 is a great airplane. The 3-3-3 seat configuration leaves enough seat width to be just comfortable in coach.

IAD
AMS
Mediocre 2.0

They stole my money

Sat, Feb 24
LHR
SFO
11h 05m
Sat, Mar 3
SFO
LHR
10h 30m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Aug 16
LHR
SFO
13h 15m
Thu, Sep 27
SFO
LHR
20h 45m
Trip: 43 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jul 28
LHR
SFO
13h 40m
Sat, Aug 18
SFO
LHR
13h 35m
$1570
Trip: 22 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 4256 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
DUB
MAD
Good 6.3

Seats were larger with more leg room. Flight calm and without incident

No snack

BOS
DUB
Okay 5.6

The actual flight

Food and comfort. Seats too small and no leg room.

DUB
LHR
Excellent 8.0

Could not check in on-line from Dublin on either Air canada or Aer Linguis websites. Time to sort out this long-standing problem

SNN
LHR
Excellent 8.3

Nice seats food was decent crew excellent

Not enough room

LHR
DUB
Excellent 8.0

Staff and service

Sun, Jul 29
LHR
SFO
16h 21m
Mon, Aug 13
SFO
LHR
15h 05m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Show more results

London Heathrow to San Francisco Flight Information

Avg. Flight Duration 10h 47m
Flights Arrive in San Francisco
Flights Depart from London Heathrow
Flight Price $596
Distance 5355 miles
Airlines KLM, Lufthansa, Aer Lingus, Virgin Atlantic, Austrian Airlines
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.