Cheap Flights from London to San Francisco
Browse current best options from London. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
London
RatePunk searches hundreds of travel sites at once for deals on flights to San Francisco
Prices updated 24 days ago
486,190 searches this week
171 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)
Today’s best flight deals from London to San Francisco
Explore current cheapest deals departing from London to San Francisco
Round trip
Sort by: Cheapest
October 14 - October 28
LHR - San Francisco
$748
$574
Round trip
October 8 - October 18
LGW - San Francisco
$834
$577
Round trip
October 15 - October 18
LGW - San Francisco
$863
$577
Round trip
September 9 - September 23
LHR - San Francisco
$638
$578
Round trip
September 15 - September 22
LGW - San Francisco
$734
$583
Round trip
September 3 - September 14
LGW - San Francisco
$699
$583
Round trip
October 7 - October 14
LGW - San Francisco
$840
$583
Round trip
September 4 - September 15
LGW - San Francisco
$701
$584
Round trip
September 16 - September 27
LGW - San Francisco
$712
$584
Round trip
October 8 - October 15
LGW - San Francisco
$840
$584
Round trip
Unlock all 500+ flight deals to San Francisco and get alerts when great deals appear
Route Intelligence — 486,190 Searches this Week
Insights for flights from London to San Francisco
How much is a round trip from London to San Francisco
Regular price: $648 - $1,267
Prices for flights from London to San Francisco are currently below the regular range.
The regular price range for this route is between $648 and $1267. The current lowest deal is $574 with Swiss International Air Lines, for travel from October 14 to October 28.
now $574
Low $648
High $1,267
The cheapest time to fly from London to San Francisco
The cheapest month to fly from London to San Francisco is February, with a median price of $626. The most expensive month is December, with a median price of $1295. Prices are generally lower from February to November.
February
Flights from $626
December
Flights from $1,295
Direct flights from London to San Francisco
Finnair
Last-minute flights going from London to San Francisco
Tue, Jun 23
LHR - San Francisco
London (LHR) - San Francisco (SFO)
Swiss International Air Lines
$831
$590
One-way
Tue, Jun 23
LHR - San Francisco
London (LHR) - San Francisco (SFO)
Swiss International Air Lines
$845
$591
One-way
Tue, Jun 23
LHR - San Francisco
London (LHR) - San Francisco (SFO)
Swiss International Air Lines
$831
$591
One-way
Wed, Jul 1
LGW - San Francisco
London (LGW) - San Francisco (SFO)
Swiss International Air Lines
$776
$595
One-way
Tue, Sep 1
LGW - San Francisco
London (LGW) - San Francisco (SFO)
Swiss International Air Lines
$724
$587
One-way
Tue, Sep 1
LHR - San Francisco
London (LHR) - San Francisco (SFO)
Lufthansa
$630
$596
One-way
Biggest price drops on these dates for flights from London to San Francisco
Dec 7 - Dec 23
$958 → $602
37%
Dec 5 - Dec 23
$958 → $602
37%
Dec 8 - Dec 24
$958 → $603
37%
Dec 9 - Dec 26
$956 → $602
37%
Popular Airports to fly from London to San Francisco
London - San Francisco route insights
💸 Price insights
Recent fares are above the typical level
Recent fares for London to San Francisco are above the typical level at $574.
📅 Best time to fly
Fly in February for the best prices
Historically, February is the cheapest month to fly from London to San Francisco, with a median price of $626.
⏱️ Flight duration
Expect 21h 40m flight time
The median flight duration from London to San Francisco is 21 hours and 40 minutes.
✈️ Airlines & availability
Connecting flights are more common
Connecting flights are more common, with 32.1% of recent deals being direct.
🏆 Airline highlight
Finnair offers direct flights
Finnair is an airline that has offered direct flights on the London to San Francisco route.
🎯 Booking tip
Deals are frequent for this route
Deals for flights from London to San Francisco are frequent, with over 1 deal per day.
London main airports to depart from
Heathrow (LHR)
Heathrow is a major international hub, offering a wide selection of flights to San Francisco.
📍 ~23 km from city center (reachable by car or train)
💸 Flights from ~$574
Gatwick (LGW)
Gatwick provides another convenient option for flights from London to San Francisco.
📍 ~40 km from city center (reachable by car or train)
💸 Flights from ~$577
London City (LCY)
London City Airport is centrally located, offering a convenient departure point for your trip.
📍 ~10 km from city center (reachable by car or train)
💸 Flights from ~$598
London Southend (SEN)
London Southend offers an alternative departure point for flights to San Francisco.
📍 ~55 km from city center (reachable by car or train)
💸 Flights from ~$847
London Stansted (STN)
London Stansted is a good choice for flights to San Francisco, often with competitive prices.
📍 ~50 km from city center (reachable by car or train)
💸 Flights from ~$674
Luton (LTN)
Luton Airport offers another option for flights from London to San Francisco.
📍 ~45 km from city center (reachable by car or train)
💸 Flights from ~$631
San Francisco main airports to arrive at
San Francisco International (SFO)
San Francisco International Airport is a good arrival choice for flights from London to San Francisco.
📍 ~20 km from city center (reachable by car, bus, train)
💸 Flights from ~$574
Airports nearby San Francisco used as alternative
Oakland International (OAK)
Oakland International is a useful alternative with high flight frequency and direct public transit access to San Francisco.
📍 ~18 km from San Francisco (reachable by BART public transit)
💸 Flights from ~$653
San Jose International (SJC)
San Jose International is a major international airport serving the South Bay, often with fewer weather delays.
📍 ~70 km from San Francisco (reachable by car)
💸 Flights from ~$644
Sacramento International (SMF)
Sacramento International offers a robust domestic route network, ideal for northern and eastern metro areas.
📍 ~125 km from San Francisco (reachable by car)
💸 Flights from ~$739
Charles M. Schulz–Sonoma County (STS)
Charles M. Schulz–Sonoma County is convenient for North Bay and Wine Country travelers, with faster processes.
📍 ~95 km from San Francisco (reachable by car)
💸 Flights from ~$806
Monterey Regional (MRY)
Monterey Regional is an alternative for the southern coastal region, offering a less crowded terminal environment.
📍 ~140 km from San Francisco (reachable by car)
💸 Flights from ~$838
Business & First Class Flight Deals to San Francisco
Discover luxury on the budget with premium cabin class on flights from London to San Francisco.
Elite
Best Elite deals to San Francisco
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From LHR
Elite
Jun 24
San Francisco, United States
94% AI deal score
$6,644
$3,593
Save $3,051
From LHR
Elite
Oct 22
San Francisco, United States
92% AI deal score
$5,352
$3,317
Save $2,035
From LHR
Elite
Jul 05
San Francisco, United States
92% AI deal score
$5,774
$3,593
Save $2,181
From LHR
Elite
Oct 17
San Francisco, United States
91% AI deal score
$5,116
$3,598
Save $1,518
From LHR
Elite
Sep 09
San Francisco, United States
91% AI deal score
$2,368
$1,668
Save $700
From LHR
Elite
Aug 24
San Francisco, United States
90% AI deal score
$6,489
$4,542
Save $1,947
From LGW
Elite
Aug 07
San Francisco, United States
90% AI deal score
$15,183
$11,148
Save $4,035
From LHR
Elite
Jul 23
San Francisco, United States
90% AI deal score
$15,584
$11,703
Save $3,881
From LHR
Elite
Sep 15
San Francisco, United States
90% AI deal score
$2,280
$1,666
Save $614
From LHR
Elite
Sep 15
San Francisco, United States
90% AI deal score
$2,295
$1,668
Save $627
From LHR
Elite
Sep 14
San Francisco, United States
90% AI deal score
$2,280
$1,668
Save $612
From LHR
Elite
Sep 08
San Francisco, United States
90% AI deal score
$2,290
$1,673
Save $617
From LHR
Elite
Sep 09
San Francisco, United States
90% AI deal score
$2,275
$1,681
Save $594
From LHR
Elite
Sep 08
San Francisco, United States
90% AI deal score
$2,284
$1,681
Save $603
From LHR
Elite
Sep 16
San Francisco, United States
90% AI deal score
$2,283
$1,683
Save $600
From LHR
Elite
Sep 21
San Francisco, United States
90% AI deal score
$2,297
$1,683
Save $614
From LHR
Elite
Sep 02
San Francisco, United States
90% AI deal score
$2,267
$1,687
Save $580
From LHR
Elite
Sep 01
San Francisco, United States
90% AI deal score
$2,276
$1,687
Save $589
From LHR
Elite
Sep 01
San Francisco, United States
90% AI deal score
$2,268
$1,687
Save $581
From LHR
Elite
Sep 22
San Francisco, United States
90% AI deal score
$2,298
$1,726
Save $572
From LHR
Elite
Oct 19
San Francisco, United States
89% AI deal score
$7,314
$4,922
Save $2,392
From LGW
Elite
Oct 14
San Francisco, United States
85% AI deal score
$14,127
$10,791
Save $3,336
From STN
Elite
Jul 05
San Francisco, United States
84% AI deal score
$4,629
$3,805
Save $824
From LCY
Elite
Dec 11
San Francisco, United States
84% AI deal score
$15,960
$12,521
Save $3,439
From LGW
Elite
Dec 11
San Francisco, United States
84% AI deal score
$16,793
$12,556
Save $4,237
From LGW
Elite
Sep 17
San Francisco, United States
84% AI deal score
$17,106
$13,140
Save $3,966
From LHR
Elite
Sep 11
San Francisco, United States
83% AI deal score
$5,324
$4,245
Save $1,079
From LGW
Elite
Sep 17
San Francisco, United States
83% AI deal score
$16,698
$13,140
Save $3,558
From LGW
Elite
Jul 05
San Francisco, United States
82% AI deal score
$4,240
$3,820
Save $420
From LHR
Elite
Sep 05
San Francisco, United States
82% AI deal score
$5,161
$4,245
Save $916
From LHR
Elite
Sep 03
San Francisco, United States
82% AI deal score
$5,604
$4,525
Save $1,079
From LCY
Elite
Oct 14
San Francisco, United States
82% AI deal score
$12,395
$11,130
Save $1,265
From LCY
Elite
Aug 13
San Francisco, United States
82% AI deal score
$13,253
$11,786
Save $1,467
From LCY
Elite
Nov 13
San Francisco, United States
82% AI deal score
$14,499
$12,614
Save $1,885
From LGW
Elite
Jul 12
San Francisco, United States
82% AI deal score
$15,280
$13,578
Save $1,702
From LGW
Elite
Jul 02
San Francisco, United States
82% AI deal score
$16,413
$14,633
Save $1,780
From LHR
Elite
Nov 19
San Francisco, United States
82% AI deal score
$1,732
$1,569
Save $163
From LHR
Elite
Nov 19
San Francisco, United States
82% AI deal score
$1,720
$1,571
Save $149
From LHR
Elite
Dec 02
San Francisco, United States
81% AI deal score
$3,863
$3,418
Save $445
From LHR
Elite
Sep 05
San Francisco, United States
81% AI deal score
$5,316
$4,606
Save $710
From LCY
Elite
Aug 17
San Francisco, United States
81% AI deal score
$13,076
$11,786
Save $1,290
From LCY
Elite
Dec 01
San Francisco, United States
81% AI deal score
$14,172
$12,493
Save $1,679
From LCY
Elite
Dec 01
San Francisco, United States
81% AI deal score
$14,272
$12,493
Save $1,779
From LHR
Elite
Aug 27
San Francisco, United States
81% AI deal score
$14,514
$13,139
Save $1,375
From LHR
Elite
Aug 27
San Francisco, United States
81% AI deal score
$14,712
$13,139
Save $1,573
From LGW
Elite
Jun 25
San Francisco, United States
81% AI deal score
$16,401
$14,781
Save $1,620
From LHR
Elite
Nov 03
San Francisco, United States
81% AI deal score
$1,784
$1,668
Save $116
From LCY
Elite
Aug 04
San Francisco, United States
80% AI deal score
$13,933
$12,957
Save $976
From LCY
Elite
Jul 24
San Francisco, United States
80% AI deal score
$14,822
$13,808
Save $1,014
From LGW
Elite
Jul 01
San Francisco, United States
80% AI deal score
$15,598
$14,633
Save $965
From LCY
Elite
Jul 02
San Francisco, United States
80% AI deal score
$15,779
$14,655
Save $1,124
From LHR
Elite
Jun 23
San Francisco, United States
80% AI deal score
$16,014
$15,219
Save $795
From LCY
Elite
Dec 15
San Francisco, United States
80% AI deal score
$17,125
$15,667
Save $1,458
From LHR
Elite
Nov 16
San Francisco, United States
80% AI deal score
$1,769
$1,677
Save $92
From LHR
Elite
Nov 16
San Francisco, United States
80% AI deal score
$1,780
$1,683
Save $97
From LCY
Elite
Nov 17
San Francisco, United States
79% AI deal score
$13,469
$12,866
Save $603
From LCY
Elite
Jul 24
San Francisco, United States
79% AI deal score
$14,805
$14,246
Save $559
From LCY
Elite
Jun 25
San Francisco, United States
79% AI deal score
$15,236
$14,655
Save $581
From LGW
Elite
Jul 26
San Francisco, United States
79% AI deal score
$15,406
$14,950
Save $456
From LCY
Elite
Dec 09
San Francisco, United States
79% AI deal score
$16,149
$15,277
Save $872
From LCY
Elite
Jul 02
San Francisco, United States
79% AI deal score
$16,409
$15,580
Save $829
From LCY
Elite
Jul 02
San Francisco, United States
79% AI deal score
$16,544
$15,647
Save $897
From LCY
Elite
Aug 21
San Francisco, United States
78% AI deal score
$12,940
$12,756
Save $184
From LCY
Elite
Nov 17
San Francisco, United States
78% AI deal score
$12,796
From LCY
Elite
Aug 21
San Francisco, United States
78% AI deal score
$13,134
From LCY
Elite
Aug 04
San Francisco, United States
78% AI deal score
$13,901
$13,875
Save $26
From LGW
Elite
Oct 03
San Francisco, United States
78% AI deal score
$14,577
$14,223
Save $354
From LHR
Elite
Nov 26
San Francisco, United States
78% AI deal score
$1,768
$1,722
Save $46
From LCY
Elite
Aug 13
San Francisco, United States
77% AI deal score
$13,582
From LCY
Elite
Aug 13
San Francisco, United States
77% AI deal score
$13,837
From LCY
Elite
Aug 18
San Francisco, United States
77% AI deal score
$14,246
From LCY
Elite
Aug 18
San Francisco, United States
76% AI deal score
$15,412
From LCY
Elite
Jul 08
San Francisco, United States
76% AI deal score
$16,546
From LHR
Elite
Dec 04
San Francisco, United States
75% AI deal score
$4,277
From LHR
Elite
Dec 04
San Francisco, United States
75% AI deal score
$4,277
From LHR
Elite
Dec 07
San Francisco, United States
75% AI deal score
$4,298
From LHR
Elite
Nov 16
San Francisco, United States
75% AI deal score
$14,332
From LHR
Elite
Dec 07
San Francisco, United States
74% AI deal score
$4,795
From LHR
Elite
Dec 09
San Francisco, United States
73% AI deal score
$4,795
From LHR
Elite
Dec 09
San Francisco, United States
73% AI deal score
$4,795
From LHR
Elite
Jun 18
San Francisco, United States
73% AI deal score
$4,206
From LHR
Elite
Sep 05
San Francisco, United States
71% AI deal score
$6,644
From LHR
Elite
Sep 19
San Francisco, United States
69% AI deal score
$7,872
From LHR
Elite
Aug 22
San Francisco, United States
69% AI deal score
$30,803
From LHR
Elite
Aug 18
San Francisco, United States
69% AI deal score
$30,803
From LHR
Elite
Aug 28
San Francisco, United States
69% AI deal score
$30,803
From LHR
Elite
Aug 23
San Francisco, United States
69% AI deal score
$30,803
From LHR
Elite
Aug 29
San Francisco, United States
69% AI deal score
$30,803
From LHR
Elite
Aug 14
San Francisco, United States
69% AI deal score
$30,803
From LHR
Elite
Oct 11
San Francisco, United States
68% AI deal score
$10,939
From LHR
Elite
Nov 15
San Francisco, United States
67% AI deal score
$35,750
From LHR
Elite
Nov 06
San Francisco, United States
67% AI deal score
$35,864
From LHR
Elite
Nov 05
San Francisco, United States
67% AI deal score
$35,884