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 14 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Question 2

How long is the flight from San Francisco to Singapore?

Accepted Answer

There are many flights that can get you from San Francisco to Singapore in 16h 40m. Fly via United Airlines to get the fastest option. The distance from San Francisco to Singapore is about 8433 mi. All flights are typically direct.

Question 3

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

Accepted Answer

Currently priced at £562, Singapore Airlines will fly you from San Francisco to Singapore and back. In addition to Singapore Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as £597. Singapore Airlines is 20% cheaper than the average price of flights available within the next 90 days to this destination.

Question 4

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

Accepted Answer

To ensure you get the cheapest price possible for a flight from San Francisco to Singapore, you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 5

What is the cheapest month to book a flight from San Francisco to Singapore?

Accepted Answer

Currently, May is the cheapest month in which you can book a flight from San Francisco to Singapore (average of £712). Flying from San Francisco to Singapore in December is currently the most expensive (average of £1,115). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 6

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 Thursday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

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 Monday, which is when the least amount of flights are scheduled (4 on average).

Question 8

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 9

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 10

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

Accepted Answer

It’s generally more expensive to depart on a Thursday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

Question 11

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

Accepted Answer

To save on the cost of your flight from San Francisco to Singapore, book at least 51 days before your planned departure. Booking around this time can save you about 19% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £638 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £691.

Question 12

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

Accepted Answer

Our data shows that September tends to be the cheapest month to fly to Singapore from San Francisco. Users have commonly found prices around £704 for the month, but tickets can be as low as £429. Due to multiple factors, prepare for potentially higher prices in December.

Question 13

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

Accepted Answer

One of the essential ways to save on airfare from San Francisco to Singapore is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the morning could potentially save you up to 13% on airfare.

Question 14

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

Accepted Answer

You will need to book a flight from San Francisco to Singapore Changi if you want to fly from San Francisco to Singapore. At least 2 different airlines have flights from San Francisco (SFO) to Changi (SIN) on a regular basis. There are 4 flights to Singapore from the San Francisco airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SFO to SIN to be around 17h 25m.

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 helps you search for flights from San Francisco to Singapore via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Question 19

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

Accepted Answer

Cheapflights helps you find that perfect flight to Singapore from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Question 20

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

Accepted Answer

Yes, we can. To see specific flights from San Francisco to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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	£474
One-way from	£250
Popular in	December
Cheapest in	September
Average price	£569

Airline	Cheapest	Average	Flexibility	On-time
Singapore Airlines	Cheapest£562	Average£796	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
United Airlines	Cheapest£597	Average£719	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Cheap flights from San Francisco to Singapore from £250

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 26/9. 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 September or October, booked 74 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from San Francisco to Singapore

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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 2 September 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 2 September 2025.

Cheapflights Fare Finder

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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?

What is the cheapest month to book a flight from San Francisco to Singapore?

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

Weekly flight availability from San Francisco to Singapore

Reviews of airlines servicing Singapore

Read reviews from past customers who have flown with Singapore Airlines and United Airlines from San Francisco to Singapore. Users can see the overall rating for each airline as well as how each is rated 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?

How long is the flight from San Francisco to Singapore?

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

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?

What is the cheapest month to book a flight 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.

Alternative routes for San Francisco to Singapore

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Top 2 airlines flying from San Francisco to Singapore

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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?

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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 2 September 2025.