Cheap Flights from Singapore (SINS) to San Francisco (SFO)

Compare Singapore to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

Book the best San Francisco International fare with no extra fees

Flight deals from Singapore to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Singapore to San Francisco International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Singapore to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Singapore to San Francisco International flights are currently cheapest in September.

Direct flights from Singapore to San Francisco International

Singapore to San Francisco International: Alternative routes

Compare routes from Singapore to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Singapore to San Francisco: Flight information

The things to know before you go.
Cheapest flight found$904
Cheapest month to flySeptember
Average flight time15 hrs, 6 mins
Most popular airlineSingapore Airlines
Average flights per week29

Finding cheap flights from Singapore to San Francisco International: Frequently asked questions

The best price we found for a return flight from Singapore to San Francisco International is $904. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
15 hours and 6 minutes is the average flight time from Singapore to San Francisco International.
Singapore Airlines and United fly direct from Singapore to San Francisco International.
As of August 2025, there are 29 flights per week flying from Singapore to San Francisco International.
The cheapest month to fly from Singapore to San Francisco International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Singapore to San Francisco International Airport on Tuesday, 16 September 2025.
Yes – the average flight time is 15 hours and 6 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to San Francisco International is United .

Flying from Singapore to San Francisco International Airport (SFO): What you need to know

  • Singapore has a couple of airports where you can set off on your adventure. Explore your options for booking a flight from Singapore to San Francisco International Airport (SFO) flying out of Changi International Airport (SIN) or Seletar Airport (XSP).

  • Take a direct Singapore to San Francisco International Airport flight and you'll be in the air for an average of 15 hours 10 minutes.

  • San Francisco International Airport is located in San Francisco. The city is in the UTC-7 timezone and is 15 hours behind Singapore.

  • The busiest route is from Changi International Airport (SIN) to San Francisco International Airport (SFO), with 28 direct services every week. If you're not one for hanging around, the earliest flight from SIN to SFO is the 8:45am United Airlines option. If a later flight fits your day better, the last departure is at 10:20pm with United Airlines.

  • To ensure you get on your flight from Singapore to SFO, leave plenty of time for things like check-in and baggage drop. Turning up two hours ahead of international departures and one hour before domestic flights is the standard rule.

  • Heading off during a peak time like public or school holidays? Expect longer lines at check-in and security. To give yourself peace of mind, arrive up to four hours before international flights and two hours ahead of domestic departures.

Airports in Singapore

Changi International Airport (SIN)

  • Get to your destination in one go from Changi International Airport (SIN). Direct flights from Singapore to San Francisco International Airport (SFO) operate from here.

  • You can travel on a direct flight from Singapore to San Francisco International Airport with United Airlines. This popular airline operates departures from SIN.

  • United Airlines is the airline most travellers choose for flights from SIN to SFO.

  • Singapore Airlines is the most punctual carrier on this route, with 76.86% of its services arriving on schedule.

  • We make it easy to book cheap flights from Singapore to SFO with a stopover. To explore your options departing from Changi International Airport (SIN), uncheck 'Direct flights only.' Then, simply select a flight that has a stop long enough to tour your chosen city. Some popular stopovers between SIN and SFO include:

    • Haneda Airport (HND)

    • Hong Kong International Airport (HKG)

    • Taiwan Taoyuan International Airport (TPE)

  • The journey from central Singapore to SIN takes about 1 hour by public transport. If you ride-share, drive or take a cab, you'll cover the 21 kilometres in 20 minutes or so, depending on traffic conditions.

  • Have an early flight from Singapore to San Francisco International Airport? Avoid the mad dash to the terminal (and catch some extra z's) by staying at one of these hotels near Changi International Airport:

  • Of all flights leaving Changi International Airport, 68.95% arrive as scheduled at their destination.

Seletar Airport (XSP)

About San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • San Francisco International Airport to the centre of San Francisco is about 18 kilometres. If you're renting a car or taking a cab, plan ahead to make your trip as easy as possible. Journey times may vary depending on traffic conditions and the time of day.

  • When travelling by public transport, expect a journey of roughly 45 minutes.

How to find the cheapest flights from Singapore to San Francisco International Airport (SFO)

  • Right now, $584 is the best price we've found for a one-way ticket from Singapore to San Francisco International Airport. The cheapest price for a return flight is $904. Remember fares may change due to availability at the time of booking.

  • To pick up cheap flights from Singapore to SFO, book ahead. Airlines typically offer lower fares when tickets first go on sale.

  • Affordable Singapore to San Francisco International Airport tickets are easier to find when your travel dates are flexible. Use the 'Whole month' tool to compare fares throughout the month and then fly out on the cheapest day.

  • There's no need to check back in every day to find out if prices have dropped when you set up a Price Alert. We'll notify you as soon as a better deal comes up on flight tickets from Singapore to SFO.

  • Save on your flight from Singapore to San Francisco International Airport by using filters. Select your preferred duration, departure time and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Singapore to San Francisco International Airport (SFO)

  • Think about the kind of holiday you want when deciding your trip dates. February is the quietest month to go to San Francisco. August is when most people book flights from Singapore to San Francisco International Airport (SFO), which may be perfect if you enjoy travelling when it's busier.

  • Before locking in your Singapore to SFO flight ticket, consider what kind of weather you prefer. September is the warmest month in San Francisco, with temperatures ranging from 12ºC (54ºF) to 22ºC (72ºF).

  • If you like cooler conditions, look for a cheap ticket from Singapore to San Francisco International Airport in January when temperatures are between 6ºC (43ºF) and 16ºC (61ºF).

More about San Francisco

Explore more of the United States

  • You've visited San Francisco, now it's time to explore more of the United States. Journey around 257 kilometres east to Fresno to check off its top attractions. From Forestiere Underground Gardens to Shinzen Japanese Garden and Fresno Chaffee Zoo, you'll have a full itinerary ahead.

  • Around 129 kilometres north-east of San Francisco, Sacramento is another favourite stop in the United States. Get a taste of what this destination has to offer at Old Sacramento Waterfront, Fright Planet - America's Haunted Theme Park and California State Railroad Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.