Skip to content

prices we've seen · United States fares · USD

Flights from San Francisco (SFO) to London (LHR)

  • One way from $296
  • Round trip from $618
  • Nonstop on 19 of 19 dates
  • Fastest 10h 15m
  • 12 airlines

The cheapest one-way fare from San Francisco (SFO) to London (LHR) we have seen is $296 USD, departing Dec 6, 2026 (seen Nov 9, 2026): JetBlue B6 734, 1 stop, 23h 10m.

Search flights

Depart
More options
See more dates →

Leave your email and we'll write on any day the fare is at or under your price — at most once a day. We'll send a link to confirm your address first. Without an email, it's still saved in My watches.

Prices are the fare alone; the seller shows the bag and fare rules.

Cheapest by month

Checked Nov 11

Pick a month to search the day its cheapest fare leaves.

  1. Nov 2026$299
  2. Dec 2026$296
  3. Jan 2027—
  4. Feb 2027—
  5. Mar 2027—
  6. Apr 2027—
  7. May 2027—
  8. Jun 2027—
  9. Jul 2027—
  10. Aug 2027—
  11. Sep 2027$341

Cheapest days to fly one wayCheapest round trips

Each day's cheapest fare we've seen, nonstop and with stops. Cheapest first.

We may earn a commission from the seller · How we rank

  1. SunDec 6

    23:45

    23h 10m1 stop

    06:55+2

    Cheapest$296 USD

    JetBlue B6 734 · seen Nov 9

    Go to seller — $296

  2. ThuNov 26

    10:25

    15h 5m1 stop

    09:30+1

    $299 USD

    JetBlue B6 416 · seen Nov 6

    Go to seller — $299

  3. WedNov 25

    21:30

    16h 10m1 stop

    21:40+1

    $303 USD

    JetBlue B6 1016 · seen Nov 6

    Go to seller — $303

  4. SatDec 5

    06:00

    16h 55m1 stop

    06:55+1

    $303 USD

    JetBlue B6 434 · seen Nov 6

    Go to seller — $303

  5. FriDec 4

    23:45

    23h 10m1 stop

    06:55+2

    $303 USD

    JetBlue B6 734 · seen Nov 6

    Go to seller — $303

  6. FriNov 27

    07:00

    15h 55m1 stop

    06:55+1

    $306 USD

    JetBlue B6 1634 · seen Nov 6

    Go to seller — $306

  7. TueDec 8

    23:32

    14h 8m1 stop

    21:40+1

    $308 USD

    JetBlue B6 616 · seen Nov 7

    Go to seller — $308

  8. ThuNov 12

    14:55

    22h1 stop

    20:55+1

    $344 USD

    JetBlue B6 416 · seen Nov 10

    Go to seller — $344

  9. WedDec 2

    09:15

    19h 35m2 stops

    12:50+1

    $353 USD

    Flair Airlines F8 1847 · seen Nov 6

    Go to seller — $353

  10. ThuDec 3

    06:30

    20h 20m2 stops

    10:50+1

    $354 USD

    Frontier F9 1230 · seen Nov 6

    Go to seller — $354
Show 27 more fares

  1. WedDec 9

    09:40

    25h 50m2 stops

    19:30+1

    $354 USD

    Alaska Airlines AS 1327 · seen Nov 9

    Go to seller — $354

  2. TueDec 1

    18:30

    19h 10m2 stops

    21:40+1

    $390 USD

    Frontier F9 4402 · seen Nov 6

    Go to seller — $390

  3. TueNov 24

    23:30

    14h 10m1 stop

    21:40+1

    $423 USD

    JetBlue B6 616 · seen Nov 6

    Go to seller — $423

  4. WedNov 11

    20:55

    16h 45m1 stop

    21:40+1

    $427 USD

    JetBlue B6 16 · seen Nov 10

    Go to seller — $427

  5. SatNov 28

    08:37

    44h 13m1 stop

    12:50+2

    $441 USD

    United UA 4021 · seen Nov 6

    Go to seller — $441

  6. SunDec 13

    18:30

    19h 10m2 stops

    21:40+1

    $454 USD

    Frontier F9 4402 · seen Nov 7

    Go to seller — $454

  7. WedDec 9

    16:40

    10h 15mNonstop

    10:55+1

    $519 USD

    Virgin Atlantic VS 20 · seen Nov 9

    Go to seller — $519

  8. WedDec 23

    22:21

    33h 19m2 stops

    15:40+2

    $562 USD

    Frontier F9 2858 · seen Nov 8

    Go to seller — $562

  9. TueDec 8

    16:40

    10h 15mNonstop

    10:55+1

    $592 USD

    Virgin Atlantic VS 5964 · seen Nov 7

    Go to seller — $592

  10. SunDec 13

    16:40

    10h 15mNonstop

    10:55+1

    $614 USD

    Air France AF 9650 · seen Nov 7

    Go to seller — $614

  11. TueDec 22

    22:21

    33h 19m2 stops

    15:40+2

    $614 USD

    Frontier F9 2858 · seen Nov 7

    Go to seller — $614

  12. SunDec 6

    16:40

    10h 15mNonstop

    10:55+1

    $623 USD

    Virgin Atlantic VS 20 · seen Nov 9

    Go to seller — $623

  13. WedNov 11

    16:40

    10h 15mNonstop

    10:55+1

    $636 USD

    Virgin Atlantic VS 20 · seen Nov 10

    Go to seller — $636

  14. TueNov 24

    16:40

    10h 15mNonstop

    10:55+1

    $636 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $636

  15. WedNov 25

    16:40

    10h 15mNonstop

    10:55+1

    $636 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $636

  16. TueDec 1

    16:40

    10h 15mNonstop

    10:55+1

    $636 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $636

  17. WedDec 2

    16:40

    10h 15mNonstop

    10:55+1

    $636 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $636

  18. FriDec 4

    16:40

    10h 15mNonstop

    10:55+1

    $636 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $636

  19. SatDec 5

    16:40

    10h 15mNonstop

    10:55+1

    $636 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $636

  20. TueNov 10

    16:40

    10h 15mNonstop

    10:55+1

    $637 USD

    Virgin Atlantic VS 5964 · seen Nov 10

    Go to seller — $637

  21. ThuNov 26

    16:40

    10h 15mNonstop

    10:55+1

    $683 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $683

  22. FriNov 27

    16:40

    10h 15mNonstop

    10:55+1

    $696 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $696

  23. SatNov 28

    16:40

    10h 15mNonstop

    10:55+1

    $696 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $696

  24. ThuDec 3

    16:40

    10h 15mNonstop

    10:55+1

    $712 USD

    Virgin Atlantic VS 5964 · seen Nov 6

    Go to seller — $712

  25. ThuNov 12

    16:40

    10h 15mNonstop

    10:55+1

    $718 USD

    Virgin Atlantic VS 4813 · seen Nov 10

    Go to seller — $718

  26. TueDec 22

    12:50

    10h 35mNonstop

    07:25+1

    $852 USD

    United UA 9105 · seen Nov 7

    Go to seller — $852

  27. WedDec 23

    12:50

    10h 35mNonstop

    07:25+1

    $877 USD

    United UA 901 · seen Nov 8

    Go to seller — $877

The cheapest round trips we've seen on this route, on any dates, cheapest first.

We may earn a commission from the seller · How we rank

  1. 19 nightsJul 11–30

    22:00

    LHR

    Cheapest$618 USD

    Virgin Atlantic VS 2642 · 1 stop · 36h 25m in all, both ways · seen Nov 5

    Go to seller — $618

  2. 18 nightsJul 11–29

    22:00

    LHR

    $621 USD

    Virgin Atlantic VS 2642 · 2 stops · 40h 21m in all, both ways · seen Nov 5

    Go to seller — $621

  3. 19 nightsJul 11–30

    18:00

    12:50+1

    $629 USD

    Virgin Atlantic VS 20 · Nonstop · 21h 45m in all, both ways · seen Nov 5

    Go to seller — $629

  4. 18 nightsJul 11–29

    22:30

    16:45+1

    $692 USD

    Virgin Atlantic VS 42 · Nonstop · 21h 45m in all, both ways · seen Nov 5

    Go to seller — $692

  5. 4 nightsFeb 14–18

    16:45

    LHR

    $754 USD

    SAS SK 936 · 2 stops · 33h 5m in all, both ways · seen Nov 4

    Go to seller — $754

  6. 4 nightsFeb 14–18

    16:40

    10:55+1

    $887 USD

    KLM KL 4813 · Nonstop · 21h 15m in all, both ways · seen Nov 4

    Go to seller — $887

  7. 6 nightsMar 21–27

    18:20

    LHR

    $910 USD

    Aer Lingus EI 6146 · 2 stops · 39h 55m in all, both ways · seen Nov 9

    Go to seller — $910

  8. 6 nightsMar 21–27

    17:40

    10:55+1

    $1,039 USD

    Virgin Atlantic VS 9650 · Nonstop · 21h 15m in all, both ways · seen Nov 9

    Go to seller — $1,039

  9. 8 nightsNov 22–30

    16:55

    LHR

    $1,075 USD

    Air Canada AC 571 · 2 stops · 66h 15m in all, both ways · seen Nov 8

    Go to seller — $1,075

  10. 14 nightsDec 23 – Jan 6

    07:52

    LHR

    $1,185 USD

    Frontier F9 2678 · 4 stops · 52h 55m in all, both ways · seen Nov 9

    Go to seller — $1,185
Show 10 more fares

  1. 5 nightsNov 23–28

    23:30

    LHR

    $1,226 USD

    JetBlue B6 616 · 2 stops · 27h 55m in all, both ways · seen Nov 8

    Go to seller — $1,226

  2. 6 nightsNov 23–29

    06:30

    LHR

    $1,226 USD

    Air Canada AC 563 · 3 stops · 50h 31m in all, both ways · seen Nov 8

    Go to seller — $1,226

  3. 7 nightsNov 22–29

    16:55

    LHR

    $1,226 USD

    Air Canada AC 571 · 3 stops · 64h 6m in all, both ways · seen Nov 8

    Go to seller — $1,226

  4. 23 nightsDec 10 – Jan 2

    17:25

    11:50+1

    $1,339 USD

    British Airways BA 284 · 1 stop · 27h 28m in all, both ways · seen Nov 5

    Go to seller — $1,339

  5. 14 nightsDec 23 – Jan 6

    12:50

    07:25+1

    $1,746 USD

    United UA 9105 · Nonstop · 21h 50m in all, both ways · seen Nov 9

    Go to seller — $1,746

  6. 5 nightsNov 23–28

    16:40

    10:55+1

    $1,947 USD

    Virgin Atlantic VS 20 · Nonstop · 21h 25m in all, both ways · seen Nov 8

    Go to seller — $1,947

  7. 6 nightsNov 23–29

    17:25

    11:50+1

    $1,972 USD

    British Airways BA 284 · Nonstop · 21h 50m in all, both ways · seen Nov 8

    Go to seller — $1,972

  8. 8 nightsNov 22–30

    16:40

    11:15+1

    $2,280 USD

    United UA 930 · Nonstop · 21h 45m in all, both ways · seen Nov 8

    Go to seller — $2,280

  9. 7 nightsNov 22–29

    17:25

    11:50+1

    $2,383 USD

    British Airways BA 284 · Nonstop · 21h 50m in all, both ways · seen Nov 8

    Go to seller — $2,383

  10. 23 nightsDec 10 – Jan 2

    16:40

    10:55+1

    $2,771 USD

    KLM KL 4813 · Nonstop · 21h 15m in all, both ways · seen Nov 5

    Go to seller — $2,771

Compare other routes

Compared with San Francisco → London: $296 one way (Dec 6).

The way back

Other places from San Francisco

Every route from San Francisco →

To London from other cities

Every route to London →

Airlines seen on this route

  • Air Canada
  • Air France
  • Alaska Airlines
  • JetBlue
  • British Airways
  • Aer Lingus
  • Flair Airlines
  • Frontier
  • KLM
  • SAS
  • United
  • Virgin Atlantic

Marketing carriers; the operating airline is shown by the seller.

San Francisco to London in numbers

  • By month, Dec 2026 is the cheapest we've seen at $296 USD and Sep 2027 the most expensive at $341 USD — a spread of 15%.
  • Nonstop fares were seen on 19 of the 19 departure dates; carriers seen: Air Canada, Air France, Alaska Airlines, JetBlue, British Airways, Aer Lingus, Flair Airlines, Frontier, KLM, SAS, United, Virgin Atlantic.
  • SFO serves San Francisco, United States; LHR serves London, United Kingdom.
  • London runs 8 hours ahead of San Francisco.

Questions

What is the cheapest fare from San Francisco (SFO) to London (LHR)?

The cheapest one-way fare from San Francisco (SFO) to London (LHR) we have seen is $296 USD, departing Dec 6, 2026 (seen Nov 9, 2026): JetBlue B6 734, 1 stop, 23h 10m.

Is there a nonstop flight from San Francisco (SFO) to London (LHR)?

Nonstop fares were seen on 19 of the 19 departure dates; carriers seen: Air Canada, Air France, Alaska Airlines, JetBlue, British Airways, Aer Lingus, Flair Airlines, Frontier, KLM, SAS, United, Virgin Atlantic.

Which month is cheapest to fly from San Francisco (SFO) to London (LHR)?

By month, Dec 2026 is the cheapest we've seen at $296 USD and Sep 2027 the most expensive at $341 USD — a spread of 15%.

How old is this price?

It is the cheapest fare we've seen for that date; the date beside it is the day it was seen, or our last check. We look again at least once a day for the routes people search, and stop showing a route's prices two days after our last look. The seller's page shows the price right now.

How does a2bflight rank results?

By price and duration only; commission never enters the order. Cheapest means cheapest among the fares we've seen for this route. A click that books may earn a2bflight a commission from the seller; the price you see is the seller's own. See how we rank and what we keep.