Question 1

How popular is this San Francisco to Singapore flight route?

Accepted Answer

The San Francisco to Singapore Changi flight path was viewed by 42 users in the past month. Keep an eye out for changes in search interest prior to high and low season. Find deals

Question 2

What are the cheapest airlines flying from San Francisco to Singapore round-trip?

Accepted Answer

According to our current data, Korean Air (S$ 974), Air Canada (S$ 977), and Asiana Airlines (S$ 979) offers the cheapest pricing from San Francisco to Singapore. Korean Air is 23% cheaper than the average price of flights available within the next 90 days to this destination. Find deals

Question 3

What are the cheapest airlines to fly from San Francisco to Singapore one-way?

Accepted Answer

For one-way options, check prices for Asiana Airlines. According to our data, you can fly for as low as S$ 431. Users have also found prices from S$ 432 and S$ 438 on Singapore Airlines and ANA, respectively. Find deals

Question 4

How far ahead should I book a flight from San Francisco to Singapore?

Accepted Answer

The best time to book flights from San Francisco to Singapore is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight. Find deals

Question 5

What is the cheapest day to fly from San Francisco to Singapore?

Accepted Answer

Travellers seeking maximum savings on their San Francisco to Singapore flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from San Francisco to Singapore

Accepted Answer

The most flights from SFO to SIN are scheduled on a Monday (4 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (3 on average).

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Question 9

What are the cheapest flights from San Francisco to Singapore?

Accepted Answer

The cheapest flight price from San Francisco to Singapore is S$ 496. On average you can expect to pay S$ 861. The most popular route, (San Francisco - Singapore Changi), can usually be booked for S$ 687.

Question 10

What is the cheapest day to fly return from San Francisco to Singapore?

Accepted Answer

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 87% on your flight compared to booking on days when demand is much higher.

Question 11

How far in advance should I book a flight from San Francisco to Singapore?

Accepted Answer

Users have found that booking a flight from San Francisco to Singapore at least 51 days early can save you up to 10% on average compared to booking a flight this week. If booking 51 days before your flight isn’t an option for you, users have found flights from San Francisco to Singapore for as little as S$ 1,128 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as S$ 1,259 for flights departing within the next 3 days.

Question 12

What is the cheapest month to fly from San Francisco to Singapore?

Accepted Answer

Flights from San Francisco to Singapore lean towards being more expensive in December. Prices are generally better when you fly from San Francisco to Singapore in October, with the cheapest ticket starting at S$ 860.

Question 13

What is the cheapest time of day to fly from SFO to SIN?

Accepted Answer

When flying from San Francisco to Singapore, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 12% versus a flight in the morning.

Question 14

What airports do I use to fly from San Francisco to Singapore?

Accepted Answer

Singapore Changi is the airport most travellers will use when flying to Singapore from San Francisco. Booking flights from San Francisco (SFO) to Changi (SIN) should be relatively easy as there are 3 daily flights to Singapore from 2 different airlines. 16h 20m is how long a flight from San Francisco to Singapore Changi will take if you book a nonstop flight.

Question 15

Can I find deals for flights from San Francisco to Singapore that include hotel bookings?

Accepted Answer

Yes. In addition to deals on San Francisco to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 16

How can I find direct flights from San Francisco to Singapore?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Singapore.

Question 17

Can I find deals for business class flights from San Francisco to Singapore?

Accepted Answer

Yes. Cheapflights offers flight deals from San Francisco to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 18

How does Cheapflights help users find flights from San Francisco to Singapore?

Accepted Answer

Cheapflights makes it easy to find San Francisco to Singapore flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 19

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Singapore?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from San Francisco to Singapore by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 20

Can Cheapflights find flights from San Francisco to Singapore with no change fees?

Accepted Answer

Certainly. Search results for flights to Singapore from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Question 21

Can Cheapflights notify me if prices for flights from San Francisco to Singapore become cheaper?

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Singapore from San Francisco today and book when prices fit your budget.

Round-trip from	S$ 974
One-way from	S$ 431
Popular in	December
Cheapest in	October
Average price	S$ 1,602
Good one-way deal	S$ 502 or less

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	CheapestS$ 925	AverageS$ 1,418	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Singapore Airlines	CheapestS$ 929	AverageS$ 1,169	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights

Cheap flights from San Francisco to Singapore from S$ 431

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12-8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from San Francisco to Singapore Changi are usually found in October or September, booked 50 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from San Francisco to Singapore

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Find flight deals from San Francisco to Singapore

Cheapest flights from San Francisco to SingaporeExplore the most affordable flight options available from San Francisco to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 June 2025.

Explore the most affordable flight options available from San Francisco to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Singapore that are best for you.

Best time to book a flight from San Francisco to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from San Francisco with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Singapore

How far ahead should I book a flight from San Francisco to Singapore?

Use this chart to determine the optimal time to book a return flight from San Francisco to Singapore. Price data was last updated on 20 June 2025.

What is the cheapest time of day to fly from SFO to SIN?

Find hourly flight availability from San Francisco to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 June 2025.

Weekly flight availability from San Francisco to Singapore

Reviews of airlines servicing Singapore

Get a feel of what it's like to fly with STARLUX Airlines, Korean Air, andJapan Airlines from San Francisco to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from San Francisco to Singapore?

How popular is this San Francisco to Singapore flight route?

What are the cheapest airlines flying from San Francisco to Singapore round-trip?

What are the cheapest airlines to fly from San Francisco to Singapore one-way?

What are the cheapest flights from San Francisco to Singapore?

Can I find deals for flights from San Francisco to Singapore that include hotel bookings?

How can I find direct flights from San Francisco to Singapore?

Can I find deals for business class flights from San Francisco to Singapore?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from San Francisco to Singapore on these airlines

Choose from the following airlines for your flight from San Francisco to Singapore. Flights are based on user searches made on Cheapflights and were last updated on 26 June 2025.

Top 2 airlines flying from San Francisco to Singapore

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Francisco to Singapore?

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Singapore?

Can Cheapflights find flights from San Francisco to Singapore with no change fees?

Can Cheapflights notify me if prices for flights from San Francisco to Singapore become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from San Francisco to Singapore
Explore the most affordable flight options available from San Francisco to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 June 2025.