S$ 423 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 11-3. 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

Tue, 10 Mar - Mon, 16 Mar
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
31h 05m
1 stop
Asiana Airlines Logo
23:10 - 15:00
SIN
-
SFO
30h 50m
1 stop
S$ 816Asiana Airlines
Sat, 25 Apr - Sat, 9 May
Singapore Airlines Logo
11:00 - 19:10
SFO
-
SIN
17h 10mdirect
Singapore Airlines Logo
09:15 - 09:10
SIN
-
SFO
14h 55mdirect
S$ 817Singapore Airlines
Mon, 6 Apr - Mon, 1 Jun
United Airlines Logo
10:25 - 18:35
SFO
-
SIN
17h 10mdirect
United Airlines Logo
08:45 - 09:30
SIN
-
SFO
15h 45mdirect
S$ 818United Airlines
Sat, 25 Apr - Sat, 9 May
Singapore Airlines Logo
11:00 - 19:10
SFO
-
SIN
17h 10mdirect
Singapore Airlines Logo
09:15 - 09:10
SIN
-
SFO
14h 55mdirect
S$ 820Singapore Airlines
Sat, 25 Apr - Sat, 9 May
Singapore Airlines Logo
11:00 - 19:10
SFO
-
SIN
17h 10mdirect
Singapore Airlines Logo
09:15 - 09:10
SIN
-
SFO
14h 55mdirect
S$ 822Singapore Airlines
Mon, 16 Feb - Sun, 1 Mar
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
30h 05m
1 stop
Asiana Airlines Logo
23:10 - 14:00
SIN
-
SFO
30h 50m
1 stop
S$ 827Asiana Airlines
Wed, 15 Apr - Thu, 30 Apr
Multiple Airlines Logo
11:00 - 19:10
SFO
-
SIN
17h 10mdirect
Multiple Airlines Logo
09:00 - 17:14
SIN
-
SFO
23h 14m
1 stop
S$ 828Multiple Airlines
Sun, 5 Apr - Thu, 28 May
United Airlines Logo
10:25 - 18:35
SFO
-
SIN
17h 10mdirect
United Airlines Logo
11:05 - 16:35
SIN
-
SFO
20h 30m
1 stop
S$ 830United Airlines
Tue, 17 Feb - Wed, 4 Mar
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
30h 05m
1 stop
Asiana Airlines Logo
23:10 - 14:00
SIN
-
SFO
30h 50m
1 stop
S$ 835Asiana Airlines
Mon, 16 Feb - Wed, 4 Mar
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
30h 05m
1 stop
Asiana Airlines Logo
23:10 - 14:00
SIN
-
SFO
30h 50m
1 stop
S$ 837Asiana 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$ 1,593 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$ 1,593.

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$ 1,408, 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$ 870 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 1,839 and S$ 1,474 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 Tuesday 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 6% 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$ 423
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (29% 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$ 1,593 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$ 1,718.

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 1451 reviews
8.6Crew
8.0Comfort
7.8Food
8.3Boarding
8.0Entertainment
Airline reviews

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

10.0 ExcellentDulcie, Jan 2026
HKG - SIN
Read more Singapore Airlines reviews

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.

The crew was very courteous and professional. the flight is relatively clean and comfortable.

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

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

left on time, reasonable boarding process arrived early luggage came out quickly

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

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?

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

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