Cheap flights from San Francisco to London from ₹ 38,163

The month of February is, on average, the cheapest month to fly to London from San Francisco, with most prices found around ₹ 62,170. The month of January is another great option to travel to London, with average flight prices from San Francisco averaging around ₹ 67,048.

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as ₹ 90,069. On the other hand, Tuesday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travellers. As a result, prices tend to be around ₹ 107,138.

According to our data, the cheapest time of day to fly to London is in the evening. momondo users have found flights departing from San Francisco to London in the evening for as low as ₹ 94,566. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to London are more costly in the afternoon, with an average ticket price of ₹ 101,191. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from San Francisco to London Heathrow for the best San Francisco - London flight prices

You are more likely to see cheaper flights to London from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around ₹ 87,031 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from San Francisco for as low as ₹ 80,152 on momondo.

There are 3 cabin classes available to choose from on San Francisco to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between San Francisco to London.

As of September 2026, prices for San Francisco to London flights are approximately 52% cheaper when compared to flights at the same time last year.

Historically, on average around 11% of flights between San Francisco and London have experienced a delay on any given week. The average delay length over the past 12 months has been 157 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

34 flights are operational daily from San Francisco to London as of September 2026. The most popular departure time for this route is 16:00, with 67% of flights per day taking off in the afternoon.

238 flights are operational weekly from San Francisco to London as of September 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.