Question 1

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

Accepted Answer

You are more likely to see cheaper flights to Singapore from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $914 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from San Francisco for as low as $796 on momondo.

Question 2

How have San Francisco to Singapore flight prices changed over time?

Accepted Answer

As of December 2025, prices for San Francisco to Singapore flights are approximately 41% cheaper when compared to flights at the same time last year.

Question 3

Which airport is the most popular layover for flights between San Francisco and Singapore?

Accepted Answer

Manila (MNL) was the most common stop: 28% of momondo users choosing 1-stop flights on this route connected there.

Question 4

What airlines fly to Singapore?

Accepted Answer

Singapore Airlines, United Airlines and Air Canada are the top three most popular airlines that fly to Singapore from San Francisco according to our data. Singapore Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 14 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

Question 5

Which airline has the best punctuality record on San Francisco to Singapore flights?

Accepted Answer

According to our data, Singapore Airlines have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

Question 6

What is the most punctual flight time for San Francisco to Singapore flights?

Accepted Answer

Generally, flights departing in the evening tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Question 7

How many flights depart from San Francisco to Singapore on average per week?

Accepted Answer

As of December 2025, 28 flights take off from San Francisco and land in Singapore each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

Question 8

How often are flights from San Francisco to Singapore delayed?

Accepted Answer

Historically, on average around 17% of flights between San Francisco and Singapore have experienced a delay on any given week. The average delay length over the past 12 months has been 116 minutes.

Question 9

What is the cheapest time of day to depart on your flight to Singapore?

Accepted Answer

In the morning is the cheapest time of day to fly from San Francisco to Singapore when you can find flight prices for as low as $849. Flying to Singapore in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,304 on average. Flights to Singapore from San Francisco in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Question 10

Which layover airport offers the lowest fares from San Francisco to Singapore?

Accepted Answer

Flights via Shanghai (PVG) offer the lowest average round-trip price of $664.

Question 11

What is the cheapest San Francisco to Singapore Changi flight route?

Accepted Answer

Fly from San Francisco to Singapore Changi for the best San Francisco - Singapore Changi flight prices

Question 12

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 13

Which layover airport has the shortest travel time from San Francisco to Singapore?

Accepted Answer

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 20h 25m.

Question 14

How many flights depart from San Francisco to Singapore on average per day?

Accepted Answer

The number of flights available between San Francisco and Singapore is 4 per day as of December 2025. The most frequent departure time is 9:00AM, with 50% of daily flights leaving at noon.

Question 15

Which layover airport has the shortest connection time from San Francisco to Singapore?

Accepted Answer

Hong Kong (HKG) has the shortest average layover time for this route: 2h 44m.

Question 16

What cabin class options are available on San Francisco to Singapore Changi flights?

Accepted Answer

There are 3 cabin classes available to choose from on San Francisco to Singapore Changi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 17

What is the cheapest month to fly to Singapore?

Accepted Answer

The month of September is, on average, the cheapest month to fly to Singapore from San Francisco, with most prices found around $709. If you aren’t able to travel to Singapore during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $742.

Question 18

What is the cheapest day to depart on your flight to Singapore?

Accepted Answer

The cheapest day to depart from San Francisco to Singapore is on a Monday when prices can be found for as low as $799. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $946.

Question 19

Can stopping save me money on San Francisco to Singapore flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between San Francisco to Singapore.

Question 20

What is the cheapest airline that flies from San Francisco to Singapore Changi?

Accepted Answer

United Airlines is the most popular carrier operating from San Francisco to Singapore Changi

Question 21

When did momondo last update prices for flights from San Francisco Airport to Singapore Changi Airport?

Accepted Answer

Prices for flights from San Francisco Airport to Singapore Changi Airport were last updated today.

Question 22

How many operators does momondo search for flights from San Francisco Airport to Singapore Changi Airport?

Accepted Answer

As of December 2025, there are 14 operators available to choose from for flights from San Francisco Airport to Singapore Changi Airport.

Question 23

How old do you have to be to fly from San Francisco Airport to Singapore Changi Airport?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Singapore Changi Airport.

Question 24

What documentation or ID do you need to fly to Singapore Changi Airport?

Accepted Answer

The travel and health documents you'll need for your trip to Singapore Changi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Singapore Changi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best Price Found	$333
Fastest flight time	16h 40m
Direct flights	Every day
Airports in Singapore	1 airport

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $569	Free Cancellation	Rating 8.1 1,421 reviews	Search Singapore Airlines flights
Air India	PriceFrom $588	Free Cancellation	Rating 5.5 2,960 reviews	Search Air India flights
Philippine Airlines	PriceFrom $602	Free Cancellation	Rating 7.3 945 reviews	Search Philippine Airlines flights
United Airlines	PriceFrom $641	Free Cancellation	Rating 7.4 9,118 reviews	Search United Airlines flights
Asiana Airlines	PriceFrom $647	Free Cancellation	Rating 8.2 502 reviews	Search Asiana Airlines flights
ANA	PriceFrom $654	Free Cancellation	Rating 8.4 1,051 reviews	Search ANA flights
China Eastern	PriceFrom $664	Free Cancellation	Rating 7.2 184 reviews	Search China Eastern flights
Korean Air	PriceFrom $677	Free Cancellation	Rating 8.4 1,184 reviews	Search Korean Air flights
Air Canada	PriceFrom $727	Free Cancellation	Rating 7.1 10,563 reviews	Search Air Canada flights
Japan Airlines	PriceFrom $746	Free Cancellation	Rating 8.3 1,663 reviews	Search Japan Airlines flights

Cheap flights from San Francisco to Singapore from $339

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Singapore departing on 2/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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