S$ 437 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 13-1. 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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Flight Deals

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, 22 Jan - Thu, 5 Feb
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
30h 05m1 stop
Asiana Airlines Logo
23:10 - 14:00
SIN
-
SFO
30h 50m1 stop
S$ 824Asiana Airlines
Mon, 27 Apr - Mon, 25 May
Asiana Airlines Logo
23:30 - 21:30
SFO
-
SIN
31h 00m1 stop
Asiana Airlines Logo
22:50 - 15:00
SIN
-
SFO
31h 10m1 stop
S$ 826Asiana Airlines
Wed, 28 Jan - Mon, 2 Feb
United Airlines Logo
10:35 - 20:15
SFO
-
SIN
17h 40mdirect
United Airlines Logo
22:20 - 21:15
SIN
-
SFO
14h 55mdirect
S$ 827United Airlines
Sat, 3 Jan - Mon, 23 Feb
Air India Logo
16:30 - 09:15
SFO
-
SIN
48h 45m2 stops
Air India Logo
19:40 - 20:50
SIN
-
SFO
41h 10m2 stops
S$ 828Air India
Sun, 11 Jan - Sat, 24 Jan
United Airlines Logo
22:35 - 08:00
SFO
-
SIN
17h 25mdirect
United Airlines Logo
10:10 - 09:00
SIN
-
SFO
14h 50mdirect
S$ 829United Airlines
Thu, 15 Jan - Tue, 20 Jan
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
30h 05m1 stop
Asiana Airlines Logo
23:10 - 14:00
SIN
-
SFO
30h 50m1 stop
S$ 831Asiana Airlines
Tue, 3 Mar - Tue, 10 Mar
Singapore Airlines Logo
09:40 - 19:05
SFO
-
SIN
17h 25mdirect
Singapore Airlines Logo
09:15 - 08:50
SIN
-
SFO
14h 35mdirect
S$ 832Singapore Airlines
Sun, 15 Mar - Wed, 18 Mar
Singapore Airlines Logo
10:40 - 19:05
SFO
-
SIN
17h 25mdirect
Singapore Airlines Logo
09:15 - 08:50
SIN
-
SFO
14h 35mdirect
S$ 833Singapore Airlines
Wed, 14 Jan - Mon, 19 Jan
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
30h 05m1 stop
Asiana Airlines Logo
23:10 - 14:00
SIN
-
SFO
30h 50m1 stop
S$ 836Asiana Airlines
Wed, 28 Jan - Tue, 10 Feb
Air India Logo
16:30 - 18:30
SFO
-
SIN
34h 00m2 stops
Air India Logo
20:00 - 14:30
SIN
-
SFO
34h 30m2 stops
S$ 837Air India
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$ 1,540 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$ 1,540.

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$ 1,540, 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$ 915 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 1,883 and S$ 1,522 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, Sunday 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 4 weeks before departure, which saves you about 3% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonAugust
Cheapest flightS$ 437
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (28% 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.

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

    The cheapest time of day to fly to Singapore is generally in the morning, when retur flights cost S$ 1,202 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$ 1,384.

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.
8.1
Singapore AirlinesOverall score based on 1413 reviews
8.6Crew
8.0Comfort
8.0Entertainment
7.8Food
8.3Boarding
Airline reviews

Pleasant business class flight experience with good onboarding experience. Flight service team was excellent with usual book-the-chef menu available

8.0 ExcellentWee Keng, Nov 2025
ICN - SIN
Read more Singapore Airlines reviews

Pleasant business class flight experience with good onboarding experience. Flight service team was excellent with usual book-the-chef menu available

a completely full flight - felt quite carmped in, despite being on the window seat. Meal served could better. Surely different from pre-covid trips I used to take to and from Bangkok.

SQ service is great as always. However, the food quality seems to have gotten a lot worse recently.

Wish the underseat compartment don’t have a restriction, can fit a personal item such as backpack fully like most Boeing

Best service airline. The cabin crew is attentive and friendly. Inflight entertainment system is good

Best airline I think. No problems with anything. Crew were great, no problems with the airline food and entertainment and a smooth flight.

Airline should consider adding a small meal at the last leg of the flight, right now there is 7 hours of no meal break.

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

Headwind delayed our flight which wasn’t the airlines fault

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

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

Information on your arrival and departure airports