Cheap Flights from San Francisco International to Singapore Changi

Compare San Francisco International to Singapore Changi flight deals

Find the cheapest month or even day of the year to fly to Singapore Changi

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Flight deals from San Francisco International to Singapore Changi

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

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

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

Direct flights from San Francisco International to Singapore Changi

San Francisco International to Singapore Changi: Alternative routes

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

San Francisco to Singapore: Flight information

The things to know before you go.
Cheapest flight foundRs95,235
Cheapest month to flyAugust
Average flight time17 hrs, 6 mins
Most popular airlineUnited
Average flights per week28

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

The best price we found for a return flight from San Francisco International to Singapore Changi is Rs180,216. 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.
17 hours and 6 minutes is the average flight time from San Francisco International to Singapore Changi.
United and Singapore Airlines fly direct from San Francisco International to Singapore Changi.
As of June 2025, there are 28 flights per week flying from San Francisco International to Singapore Changi.
The cheapest month to fly from San Francisco International to Singapore Changi is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Singapore Changi Airport on Wednesday, 17 September 2025.
Yes – the average flight time is 17 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 Singapore Changi 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 Singapore is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Singapore Changi.

Travelling from San Francisco International Airport (SFO) to Changi International Airport (SIN): what you need to know

  • Around 17 hours 5 minutes is how long you'll be travelling on a direct flight from San Francisco International Airport to Changi International Airport.

  • Singapore's timezone is UTC+8, which makes Singapore 15 hours ahead of San Francisco.

  • Flights from SFO to SIN start from 09:40 — the first with Singapore Airlines. The last service of the day is at 22:55 with United Airlines. Overall, you can choose from 40 weekly San Francisco International Airport to Changi International Airport flights.

  • To ensure you get on your SFO to SIN flight, leave enough time to check in and drop off your luggage. Arriving two hours before international departures and an hour before domestic flights is the standard rule.

  • During popular months such as August, it's a good idea to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead for international flights when you fly during a peak period in general.

  • Singapore Airlines is your gateway to discovering Singapore (and maybe even some other great corners of Singapore!). Browse the direct flights from San Francisco International Airport to Changi International Airport offered by this airline.

  • The airline that serves the most passengers on this route is Singapore Airlines.

  • The most punctual carrier offering SFO to SIN flights is Singapore Airlines. Its services land as planned 79.17% of the time.

  • If you want to split up your journey, just deselect 'Direct flights only' when searching for your ticket from San Francisco International Airport to Changi International Airport. These are the top stopovers between SFO and SIN:

    • Chhatrapati Shivaji International Airport

    • Kempegowda International Airport

    • Ninoy Aquino International Airport

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

  • Rs95,235 is currently the best price for a one-way San Francisco International Airport to Changi International Airport flight. Return flights start at Rs180,216. These fares can change depending on availability.

  • To score cheap tickets from SFO to SIN, reserve your trip five months before your planned departure.

  • April is the cheapest month for flights from San Francisco International Airport to Changi International Airport. If you prefer to travel at a different time of year, the 'Whole month' tool will show you the lowest prices across every month.

  • Finding cheap flights from SFO to SIN is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as a new discounted fare appears.

  • Tailor your flights with filters. Pick your ideal departure and arrival times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from San Francisco International Airport to Changi International Airport.

Handy information about San Francisco International Airport (SFO)

  • 77.36% of flights that leave from San Francisco International Airport reach their destination on schedule.

  • To reach San Francisco International Airport from central San Francisco, it takes around 20 minutes by car. This depends on traffic though. It's approximately 21 kilometres from the airport to the city centre.

  • Catching public transport? Expect a journey time of around 45 minutes.

  • Get your holiday off to a relaxed start by staying near SFO. Whether you have an early flight from San Francisco International Airport to Changi International Airport or just don't like being rushed, these stays are ideal:

Arriving at Changi International Airport (SIN)

  • If you're arriving on a late San Francisco International Airport to Changi International Airport flight, few things beat the convenience of staying near the terminal. Grab your luggage from the carousel and then be tucked up in bed soon after at one of these hotels near SIN:

  • Travel at your own speed with a Changi International Airport rental car. Pick up your wheels from Avis, Sixt or Green Motion and see more of Singapore and beyond.

  • For the lowest price, book your ride from Changi International Airport about two weeks before your trip.

Getting from Changi International Airport (SIN) to central Singapore

  • Changi International Airport is roughly 21 kilometres from central Singapore. Driving there takes about 20 minutes.

  • It takes roughly 1 hour if you're travelling by public transport.

When to fly to Changi International Airport (SIN)

  • It's time to pick your trip dates for your flight from San Francisco International Airport to Changi International Airport. April is the busiest month to head to Singapore. If you like a more laid-back vibe, go in February.

  • When booking your flight from San Francisco International Airport to Changi International Airport, consider the type of weather you enjoy. May is the warmest month in Singapore, with the temperature ranging from 25ºC to 31ºC.

  • Look for cheap tickets from SFO to SIN in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 24ºC and 30ºC on average.

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