Cheap Flights from San Francisco International to Singapore

Compare San Francisco International to Singapore flight deals

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

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Flight deals from San Francisco International to Singapore

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

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

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 flights are currently cheapest in July.

Direct flights from San Francisco International to Singapore

Alternative San Francisco International to Singapore routes

Looking for the cheapest, fastest or easiest route from San Francisco International to Singapore? You could fly into the following airports instead.

San Francisco to Singapore: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 1,201
Cheapest month to flyJuly
Average flight time17 hrs, 6 mins
Most popular airlineUnited
Average flights per week56

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

There are 2 airports in Singapore: Seletar and Singapore Changi.
The best price we found for a return flight from San Francisco International to Singapore is ر.ق.‏ 2,332. 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.
United and Singapore Airlines fly direct from San Francisco International to Singapore.
As of June 2025, there are 56 flights per week flying from San Francisco International to Singapore.
The cheapest month to fly from San Francisco International to Singapore is usually September.
If you're flying from San Francisco International Airport, the cheapest airport near Singapore is Singapore Changi – which is 17.9 km away from the centre of Singapore. We've found flights into this airport from ر.ق.‏ 2,332.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Singapore on Wednesday, 24 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 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.
In June, the average temperature is usually around 28°C. May is typically the warmest month in Singapore, when it usually averages around 30°C. You can expect the least rain in February. The coldest month is December, with temperatures averaging 25°C. The rainiest month is December.
Currently, United offers the cheapest flight tickets to Singapore.

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

  • The average length of a direct flight from San Francisco International Airport to Singapore is 15 hours 10 minutes.

  • San Francisco International Airport is located in San Francisco. Based in the UTC+8 timezone, Singapore is 15 hours ahead of San Francisco.

  • With 28 flights a week between the two airports, San Francisco International Airport (SFO) to Changi International Airport (SIN) is the most popular route. Singapore Airlines operates the earliest flight at 09:40. If you're eager to make the most of your day before leaving, the latest departure from SFO to SIN is with United Airlines at 23:40.

  • To avoid missing your SFO to Singapore flight, leave enough time for things like check-in and baggage drop. Turning up two hours before international departures and one hour before domestic flights is the general travel rule.

  • Longer lines at check-in and security are likely if you're jetting off during high season, so allow even more breathing space. A good rule of thumb for peak times? Arrive up to four hours early for international flights and at least two hours for domestic departures.

  • Direct San Francisco International Airport to Singapore tickets are available for booking. Changi International Airport (SIN) will be your arrival point.

  • Get on board with United Airlines. This popular carrier operates direct flights from San Francisco International Airport to Singapore.

  • Think about adding a stopover to potentially find a cheaper flight ticket from SFO to Singapore. All you need to do is deselect 'Direct flights only' during your search. Break up your trip (and maybe save some cash) by stopping at one of these connection hubs:

    • Chhatrapati Shivaji International Airport (BOM)

    • Ninoy Aquino International Airport (MNL)

    • Kempegowda International Airport (BLR)

  • Located around 18 kilometres from the centre of San Francisco, SFO can be reached in about 20 minutes by car, depending on traffic. Travelling on public transport will take roughly 45 minutes.

  • Catching an early flight from San Francisco International Airport to Singapore? Avoid the last-minute rush to the terminal (and enjoy a little extra shut-eye) by choosing one of these stays near SFO:

  • When it comes to the on-time performance of San Francisco International Airport, 77.36% of flights arrive within the expected time frame.

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

  • The lowest price we've found for a one-way San Francisco International Airport to Singapore flight is ر.ق.‏ 1,201. The cheapest price for a return flight is ر.ق.‏ 2,332. Keep in mind fares can change due to availability at the time of booking.

  • To pick up cheap flights from SFO to Singapore, book ahead. Airlines typically offer lower prices when flights are first released.

  • Scoring cheap tickets from San Francisco International Airport to Singapore is easier if you can be flexible with your trip dates. Try using the 'Whole month' search function to get the lowest prices across each month and snap up an epic deal.

  • You don't need to check back constantly to find out if fares have dropped when you set up a Price Alert. We'll let you know when there's an extra saving on cheap flights from SFO to Singapore.

  • Pick your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from San Francisco International Airport to Singapore by 'Cheapest,' 'Fastest' or 'Best.'

Airports in Singapore

Changi International Airport (SIN)

  • Changi International Airport (SIN) to central Singapore takes about 20 minutes to reach by car. The centre is roughly 21 kilometres away.

  • If you're travelling on public transport, expect a journey time of around 1 hour.

  • Book a hotel close to SIN if you're coming in on a late flight from San Francisco International Airport to Singapore. Settle into one of these accommodation options and make your first night all about rest:

  • Grab a Changi International Airport rental car and discover Singapore and beyond with your own wheels. Avis, Sixt and Green Motion are well-known companies you can book with here.

  • To get the lowest price, book your ride from Changi International Airport around two weeks ahead of your flight from SFO to Singapore.

Seletar Airport (XSP)

  • Seletar Airport (XSP) is about 19 kilometres from the centre of Singapore. After your flight from San Francisco International Airport to Singapore, it'll take you around 25 minutes to reach the heart of the city in a ride-share or cab.

  • If you travel by public transport, you'll get to the city centre in 1 hour 25 minutes or so.

  • Place the 'Do not disturb' sign on your door and relax at a hotel close to XSP. Here are a few options where you can check in after your SFO to Singapore flight:

Best time to go to Singapore

  • Carefully consider your trip dates before locking in your flight from San Francisco International Airport to Singapore. The city buzzes during peak season, but rates are generally higher and top attractions can get crowded. Go to Singapore in low season if you like a more relaxed vibe.

  • Book a San Francisco International Airport to Singapore flight ticket with a departure in May if you're eager to experience the city during its warmest month. Expect temperatures to range from 25ºC to 31ºC.

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

More about Singapore

  • After booking your flight from San Francisco International Airport to Singapore, find a hotel that offers both comfort and a great location. Make one of these accommodation options your base for exploring Singapore:

  • Every great journey has to include a little sightseeing. Gardens by the Bay, Marina Bay Sands and Universal Studios Singapore are essential stops on your Singapore itinerary.

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