Cheap flights from Singapore to San Francisco from $449

If you aren’t able to travel to San Francisco during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $761.

The cheapest day to depart from Singapore to San Francisco is on a Tuesday when prices can be found for as low as $1,071. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $1,276.

Our data shows that the cheapest Singapore to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $1,113. Flights in the evening are often more expensive with an average ticket price of $1,269.

Fly from Singapore Changi to San Francisco for the best Singapore Changi - San Francisco flight prices

You are more likely to see cheaper flights to San Francisco from Singapore when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $899 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Singapore for as low as $791 on momondo.

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

You could potentially save up to 12% on your flight if you consider stops on a Singapore to San Francisco flight.

As of May 2026, prices for Singapore to San Francisco flights are approximately 1% cheaper when compared to flights at the same time last year.

United Airlines, China Eastern, and China Airlines are the most popular carriers operating from Singapore Changi to San Francisco

United Airlines, Singapore Airlines and EVA Air are the top three most popular airlines that fly to San Francisco from Singapore according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 6 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between Singapore and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

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

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

According to our data, Singapore Airlines have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

Taipei City (TPE) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Taipei City (TPE) offer the lowest average round-trip price of $899.

Flights connecting via Hong Kong (HKG) have the shortest average one-way travel time: 19h 33m.

Hong Kong (HKG) has the shortest average layover time for this route: 2h 06m.

The number of flights available between Singapore and San Francisco is 2 per day as of May 2026. The most frequent departure time is 8:00AM, with 56% of daily flights leaving in the evening.

The number of flights available between Singapore and San Francisco is 20 per week as of May 2026. The most frequent departure day is Fri, with 20% of weekly flights leaving on this day.