LHR - SFO Price
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£283 - £534
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SFO Temperature
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15 - 25 °C
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SFO Rainfall
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0 - 120 mm
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Popular in July High demand for flights, 34% potential price rise |
Cheapest in November Best time to find cheap flights, 20% potential price drop |
Average price £324 Average for round-trip flights in April 2021 |
Round-trip from £283 From Heathrow to San Francisco |
To save up to 41% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Heathrow to San Francisco from £387 1-2 weeks out and tickets from £475 for flights departing within the next 72 hours.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to San Francisco. Flights to San Francisco from Heathrow in February are about £353 on average during February, but can be found for as low as £258.
At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Heathrow and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.
New policies can now be found on Delta to help keep travellers safe while flying. Airline carriers are regularly disinfecting and sanitising their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially-distanced seating (for a limited time) will work towards keeping travellers safer while flying from London Heathrow to San Francisco. Policies will vary by airline.
Some of the carriers operating flights from London Heathrow to San Francisco that may be offering flexible cancellation policies are Virgin Atlantic, British Airways, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.
Yes, there are multiple flights from Heathrow to San Francisco for under £290. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £261, but on average you can expect to pay £275.
Cheapflights has 20 direct flights from Heathrow to San Francisco under £362. A good price for a direct flight from Heathrow to San Francisco is less than £312.
There are currently 20+ open flights from Heathrow to San Francisco within the next 7 days for less than £435.
When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Heathrow is roughly greater than that of San Francisco. You can assume this to be the case over the next 20 days.
Expect the weather to be around 25 °C on average in September. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in San Francisco is generally hotter than in Heathrow.
For as low as £286, Lufthansa can have you in San Francisco from Heathrow in 14h 25m. This flight may include one or multiple stops.
Flying on TAP AIR PORTUGAL is currently your cheapest option to San Francisco, with prices starting at £261. Additional return tickets that might be worth considering are offered by SWISS and Lufthansa, with the lowest prices starting at £282 and £285, respectively. TAP AIR PORTUGAL is 26% cheaper than the average price of flights available within the next 90 days to this destination.
To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at £214. Lufthansa flights start at £216 while deals on SWISS start at £219 one-way.
Airline | Cheapest | Average | Flexibility | On-time | COVID-19 safety | |
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£351 | £516 | No cancel fee | N/A |
Search Brussels Airlines flights
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£369 | £550 | No cancel fee | 77% |
Search Air France flights
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£377 | £559 | No cancel fee | 79% |
Search SWISS flights
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£341 | £561 | No cancel fee | 71% |
Search American Airlines flights
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£330 | £561 | No cancel fee | 75% |
Search KLM flights
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£365 | £564 | No cancel fee | 77% |
Search Iberia flights
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£348 | £569 | No cancel fee | 76% |
Search Finnair flights
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£410 | £590 | No cancel fee | N/A |
Search TAP AIR PORTUGAL flights
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£342 | £614 | No cancel fee | 67% |
Search Air Canada flights
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£385 | £669 | No cancel fee | N/A |
Search Norwegian Air UK flights
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Afternoon Midday to 6 PM | 100% of flight departures |
Early morning Midnight to 6 AM | 0% of flight departures |
Morning 6 AM to midday | 0% of flight departures |
Evening 6 PM to midnight | 0% of flight departures |