S$ 409 Find Cheap Flights from San Francisco to Singapore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Singapore departing on 5-8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from San Francisco to Singapore

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Francisco to Singapore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Francisco to Singapore

Thu, 3 Sep - Mon, 7 Sep
Singapore Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Singapore Airlines Logo
19:55 - 20:35
SIN
-
SFO
15h 40mdirect
S$ 765Singapore Airlines
Wed, 9 Sep - Wed, 23 Sep
Singapore Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Singapore Airlines Logo
09:15 - 09:50
SIN
-
SFO
15h 35mdirect
S$ 768Singapore Airlines
Wed, 2 Sep - Tue, 15 Sep
Singapore Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Singapore Airlines Logo
09:15 - 09:50
SIN
-
SFO
15h 35mdirect
S$ 770Singapore Airlines
Tue, 1 Sep - Sat, 12 Sep
Singapore Airlines Logo
06:00 - 17:35
SFO
-
SIN
20h 35m
1 stop
Singapore Airlines Logo
09:15 - 09:50
SIN
-
SFO
15h 35mdirect
S$ 810Singapore Airlines
Tue, 1 Sep - Tue, 15 Sep
Singapore Airlines Logo
06:00 - 17:35
SFO
-
SIN
20h 35m
1 stop
Singapore Airlines Logo
09:15 - 09:50
SIN
-
SFO
15h 35mdirect
S$ 811Singapore Airlines
Fri, 21 Aug - Tue, 15 Sep
Singapore Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Singapore Airlines Logo
09:00 - 17:52
SIN
-
SFO
23h 52m
1 stop
S$ 818Singapore Airlines
Thu, 3 Sep - Thu, 17 Sep
Singapore Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Singapore Airlines Logo
09:00 - 18:59
SIN
-
SFO
24h 59m
1 stop
S$ 819Singapore Airlines
Tue, 15 Sep - Tue, 22 Sep
Multiple Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Multiple Airlines Logo
09:00 - 17:52
SIN
-
SFO
23h 52m
1 stop
S$ 829Multiple Airlines
Sun, 13 Sep - Thu, 24 Sep
Multiple Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Multiple Airlines Logo
09:00 - 18:59
SIN
-
SFO
24h 59m
1 stop
S$ 861Multiple Airlines
Fri, 4 Sep - Sat, 12 Sep
Singapore Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Singapore Airlines Logo
09:00 - 20:17
SIN
-
SFO
26h 17m
1 stop
S$ 870Singapore Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Singapore flights

Get data-powered insights and trends into flights from San Francisco to Singapore to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest San Francisco to Singapore flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Singapore from San Francisco found in the last 72 hours was to Singapore, at S$ 665 return. The most popular route is from San Francisco (SFO) to Singapore (SIN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was S$ 665.

What is the cheapest time of day to fly to Singapore?

The average price for all round-trip flights from San Francisco to Singapore depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Singapore is generally in the morning, when retur flights cost S$ 1,183 on average. The most expensive time of day to fly to Singapore is generally at night, which is peak travel time and where the average cost of a ticket is S$ 1,727.

Can I save money by flying with a stopover from San Francisco to Singapore?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of S$ 1,175, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Singapore, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Singapore is September, when tickets cost S$ 853 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 1,855 and S$ 1,422 respectively.

What’s the cheapest day of the week to fly from San Francisco to Singapore?

The average price of all round-trip flights from San Francisco to Singapore clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Singapore on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from San Francisco to Singapore. For your return ticket, we recommend flying on a Saturday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Singapore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from San Francisco to Singapore, you should book around 8 weeks before departure, which saves you about 6% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

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Good to know

Low seasonAugust
Cheapest flightS$ 409
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (65% more expensive on average)
Flight from San Francisco to Singapore

FAQs - booking Singapore flights

  • How does KAYAK find such low prices on flights from San Francisco to Singapore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Singapore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Singapore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco to Singapore is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Singapore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from San Francisco to Singapore with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Singapore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Francisco to Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from San Francisco to Singapore

 
Need help choosing which airline to fly with from San Francisco to Singapore? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1484 reviews
8.0Comfort
7.8Food
8.6Crew
8.0Entertainment
8.3Boarding
Airline reviews

It was fine. Nothing special but nothing went wrong so all good.

8.0 ExcellentWendy, Mar 2026
MXP - SIN
Read more Singapore Airlines reviews

It was fine. Nothing special but nothing went wrong so all good.

Overall the airline tried to give excellent service. The wheelchair service was bad at SFO. My baggage was also delayed but I thank them for taking the trouble to find it and deliver it to my home.

They ran out of the second choice of food was stuck with fish

I felt that the whole experience went very smoothly. The aircraft was extremely clean and tidy on boarding. The cabin crew were beautifully turned out very, very efficient and were a credit to Singapore Airlines who are now my favourite carrier.

Excellent crew service. Professional, courteous. Service with a smile. Good food Very decent flight experience

Overall were very good and I was satisfied w/ all the food and services.

Service was very good, food and entertainment systems were good

Food was served to different people at different times and it wasn't clear why. The crew apologized for the wait. But it felt odd and inconsistent. They could use charging ports on each of the seats. Mine didn't have any. Also, they could've offered more snacks. It was a 12+ hour flight and no snacks were ever offered. Everything else was OK.

I wish there was a little more leg room between the seats. The recline was good and seats overall were comfortable. I also didn’t like the 2-4-2 configuration.

toilets could be cleaned more frequently, everything else was pretty good.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

it was a very short flight so my expectations were low.

Entertainment kept turning itself off. Gave up on watching a movie.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

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

Information on your arrival and departure airports

San Francisco (SFO)