How long is the flight from San Francisco to London?

Non-stop flights on SFO → LHR are typically around 10 hours. Connecting itineraries add 3–8 hours depending on the hub and layover.

Which airlines fly from San Francisco to London?

The main carriers on this route are British Airways, Virgin Atlantic, United, American. Codeshare and one-stop options add several more — the filter panel above shows every airline in the current fare set.

When is the cheapest time to fly from San Francisco to London?

Historically the lowest fares land in January, February, November. Summer (mid-June through mid-August) and the Christmas / New Year window are always peak. Mid-week departures (Tuesday–Thursday) typically beat weekend prices by 10–20%.

How far ahead should I book San Francisco to London?

Six to ten weeks ahead is the sweet spot for this route. Inside three weeks, fares tend to spike as airlines sell to last-minute business travellers. Award availability often opens 10–11 months out if you're booking on miles.

Can I book directly on destination.com?

The Book button on each fare opens the airline or OTA (Trip.com, Kiwi, Expedia, Booking, Priceline, etc.) that's actually selling that ticket. You complete payment there at the same price you saw here — we never add a markup.

SFO → LHR

San Francisco to London flights.

Live cached fares on San Francisco (SFO) → London (LHR), refreshed every 30 minutes. Non-stop and connecting itineraries side by side — compare airlines, times and stops, then book in one click.

Flying time
~10h non-stop
Airlines
British Airways, Virgin Atlantic, United, American
Cheapest months
January, February, November

Flex dates · cheapest nearby

Loading prices…

Read our best-time-to-book guide for SFO → LHR →Target price, booking window, weekday pattern.

See 30-day price history for SFO → LHR →Median fare, lows, and best-day patterns.

No cached fares for exactly 2026-09-07 → 2026-09-14. Showing recent fares on SFO → LHR — pick a different date in the calendar above or run a live search.

San Francisco → London · 12 fares12-month low · $380

Cached from Travelpayouts · filter & sort below

Showing 12 of 12 results

Cheapest
American Airlines · AA 2885
OutboundSFO → LHRMon, Sep 21 · 5:31 PM· 12h 20m· 1 stop
$380
one-way
Book →
Air Canada · AC 756
OutboundSFO → LHRSun, May 16 · 3:15 PM· 12h 30m· 1 stop
ReturnLHR ← SFOSun, May 30 · 6:25 AM· 13h 30m· 1 stop
$738
total round-trip
Book →
Air Canada · AC 567
OutboundSFO → LHRSun, Oct 25 · 9:45 PM· 11h 50m· 1 stop
ReturnLHR ← SFOFri, Oct 30 · 11:45 AM· 11h 10m· Non-stop
$816
total round-trip
Book →
Air Canada · AC 567
OutboundSFO → LHRSun, Mar 7 · 10:45 PM· 11h 33m· 1 stop
ReturnLHR ← SFOThu, Mar 11 · 3:20 PM· 11h 25m· Non-stop
$816
total round-trip
Book →
SAS · SK 936
OutboundSFO → LHRTue, Aug 18 · 11:45 PM· 12h 15m· 1 stop
ReturnLHR ← SFOTue, Aug 25 · 5:40 AM· 12h 45m· 1 stop
$827
total round-trip
Book →
SAS · SK 936
OutboundSFO → LHRFri, Aug 21 · 11:45 PM· 12h 25m· 1 stop
ReturnLHR ← SFOFri, Aug 28 · 6:30 PM· 12h 45m· 1 stop
$834
total round-trip
Book →
TAP Portugal · TP 240
OutboundSFO → LHRWed, Sep 9 · 2:20 AM· 15h· 2 stops
ReturnLHR ← SFOTue, Sep 15 · 6:50 PM· 15h 45m· 1 stop
$835
total round-trip
Book →
TAP Portugal · TP 238
OutboundSFO → LHRWed, Aug 19 · 11:35 PM· 13h 55m· 1 stop
ReturnLHR ← SFOSun, Aug 23 · 6:50 PM· 15h 25m· 1 stop
$836
total round-trip
Book →
JetBlue · B6 434
OutboundSFO → LHRTue, Sep 8 · 1:00 PM· 12h 32m· 1 stop
ReturnLHR ← SFOMon, Sep 14 · 8:10 PM· 16h 30m· 2 stops
$863
total round-trip
Book →
Air Canada · AC 756
OutboundSFO → LHRFri, Sep 4 · 3:10 PM· 12h 24m· 1 stop
ReturnLHR ← SFOFri, Sep 25 · 8:50 AM· 12h 30m· 1 stop
$939
total round-trip
Book →
Air France · AF 83
OutboundSFO → LHRMon, Aug 3 · 10:00 PM· 12h 20m· 1 stop
ReturnLHR ← SFOMon, Aug 10 · 7:55 PM· 12h 5m· 1 stop
$1,151
total round-trip
Book →
United Airlines · UA 2416
OutboundSFO → LHRSun, Jul 26 · 6:59 AM· 12h 13m· 1 stop
ReturnLHR ← SFOSun, Aug 2 · 10:25 AM· 12h 26m· 1 stop
$1,286
total round-trip
Book →

Try a nearby airport

Thin routes often have more options from a neighbouring airport.

Oakland (OAK) → London (LHR)

nearby origin

San Jose (SJC) → London (LHR)

nearby origin

San Francisco (SFO) → London (LGW)

nearby destination

About San Francisco → London

5-6 daily non-stops. Virgin Atlantic Upper Class and BA Club are the strongest premium-award options on the west-coast transatlantic.

Typical non-stop flying time is around 10 hours. Major carriers on this route include British Airways, Virgin Atlantic, United, American. Fares are usually cheapest in January, February, November — book 6–10 weeks ahead and avoid school-holiday peaks (late June–August, Christmas–New Year) for the best pricing.

Month-by-month price guide: San Francisco to London

Live cheapest round-trip fare cached on SFO → LHR for each of the next 12 months. Tap any month and run a live search to confirm.

Jul
Peak
from $1286
Aug
Low
from $827
Sep
Low
from $835
Oct
Low
from $816
Nov
No data
Dec
No data
Jan
No data
Feb
No data
Mar
Low
from $816
Apr
No data
May
Low
from $738
Jun
No data

Cheapest next 12 months: May from $738 round-trip. Run a live search →

Booking window tip

Long-haul fares are most predictable when booked 10-16 weeks ahead. Inside six weeks expect sharp increases, especially in premium cabins. If you're paying with miles, search 330+ days ahead when award inventory first loads.

Price drop alerts

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Where to stay

Once you’ve booked the flight, pick a London neighbourhood.

See where to stay in London →

Questions, answered

How long is the flight from San Francisco to London?
Non-stop flights on SFO → LHR are typically around 10 hours. Connecting itineraries add 3–8 hours depending on the hub and layover.
Which airlines fly from San Francisco to London?
The main carriers on this route are British Airways, Virgin Atlantic, United, American. Codeshare and one-stop options add several more — the filter panel above shows every airline in the current fare set.
When is the cheapest time to fly from San Francisco to London?
Historically the lowest fares land in January, February, November. Summer (mid-June through mid-August) and the Christmas / New Year window are always peak. Mid-week departures (Tuesday–Thursday) typically beat weekend prices by 10–20%.
How far ahead should I book San Francisco to London?
Six to ten weeks ahead is the sweet spot for this route. Inside three weeks, fares tend to spike as airlines sell to last-minute business travellers. Award availability often opens 10–11 months out if you're booking on miles.
Can I book directly on destination.com?
The Book button on each fare opens the airline or OTA (Trip.com, Kiwi, Expedia, Booking, Priceline, etc.) that's actually selling that ticket. You complete payment there at the same price you saw here — we never add a markup.

Other ways to reach London

If your plans are flexible on the origin, these alternate departure airports also serve London on the routes we track.

Other popular routes

Keep planning

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