Cheap flights from San Francisco to Singapore from S$ 437

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 29-1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SIN
17 Feb — 24 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Francisco to Singapore Changi are usually found in September or October, booked 86 days in advance, depart on a Wednesday or Monday and return on a Saturday

Cheap flight deals from San Francisco to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 January 2026.

Round-trip from

S$ 826

One-way from

S$ 437

Popular in

December

Cheapest in

September

Average price

S$ 991

Good round-trip deal

S$ 1,740 or less
Korean Air
  • Korean Air
  • 11-3-26-3
  • 2 total stops
  • 79h 35m total
  • San Francisco to Singapore
Korean Air
  • Korean Air
  • 1-2
  • 1 total stop
  • 40h 45m total
  • San Francisco to Singapore
Highest demand for flights based on searches. 11% potential increase in price (S$ 196 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (S$ 83 potential savings vs. average return price).
Average for round-trip flights in January 2026
Price to beat on a round-trip flight from San Francisco to Singapore Changi.

Find flight deals from San Francisco to Singapore

Enter your travel dates to find the best prices.

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 18 January 2026.

Wed 11-312:40
SFO
-
SIN
1 stop40h 45m
Korean Air
Thu 26-310:40
SIN
-
SFO
1 stop38h 50m
Korean Air
Deal found 17-1S$ 826
Mon 26-110:35
SFO
-
SIN
Nonstop17h 40m
United Airlines
Sat 7-222:20
SIN
-
SFO
Nonstop14h 55m
United Airlines
Deal found 16-1S$ 827
Thu 30-423:30
SFO
-
SIN
1 stop31h 00m
Asiana Airlines
Thu 25-622:50
SIN
-
SFO
1 stop31h 10m
Asiana Airlines
Deal found 18-1S$ 828
Tue 3-223:50
SFO
-
SIN
1 stop30h 05m
Asiana Airlines
Tue 10-223:10
SIN
-
SFO
1 stop30h 50m
Asiana Airlines
Deal found 16-1S$ 831
Sun 8-312:40
SFO
-
SIN
1 stop25h 20m
Korean Air
Tue 24-301:35
SIN
-
SFO
1 stop23h 55m
Korean Air
Deal found 17-1S$ 832
Sun 1-223:50
SFO
-
SIN
1 stop30h 05m
Asiana Airlines
Tue 31-322:50
SIN
-
SFO
1 stop31h 10m
Asiana Airlines
Deal found 15-1S$ 834
Tue 3-323:50
SFO
-
SIN
1 stop30h 05m
Asiana Airlines
Tue 31-322:50
SIN
-
SFO
1 stop31h 10m
Asiana Airlines
Deal found 16-1S$ 835
Mon 9-310:40
SFO
-
SIN
Nonstop17h 25m
Singapore Airlines
Fri 13-309:15
SIN
-
SFO
Nonstop14h 35m
Singapore Airlines
Deal found 16-1S$ 839
Mon 26-110:15
SFO
-
SIN
1 stop28h 40m
United Airlines
Tue 10-210:10
SIN
-
SFO
Nonstop14h 50m
United Airlines
Deal found 16-1S$ 840
Mon 19-111:00
SFO
-
SIN
1 stop21h 55m
ANA
Wed 28-110:45
SIN
-
SFO
1 stop20h 35m
ANA
Deal found 17-1S$ 841
Wed 28-111:00
SFO
-
SIN
1 stop21h 55m
United Airlines
Wed 11-222:20
SIN
-
SFO
Nonstop14h 55m
United Airlines
Deal found 16-1S$ 843

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 18 January 2026.
Use the filters below to find and compare flights from San Francisco to Singapore that are best for you.

Fly from

San Francisco

Fly to

Singapore

Route

Depart

Return

Price

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 1-2

10:35-20:15

Nonstop17h 40m

Singapore Changi

Sun 15-2

10:10-09:05

Nonstop14h 55m

S$ 827

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 4-2

22:35-08:00

Nonstop17h 25m

Singapore Changi

Tue 10-2

10:10-09:00

Nonstop14h 50m

S$ 827

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 3-2

10:35-20:15

Nonstop17h 40m

Singapore Changi

Tue 10-2

22:20-21:15

Nonstop14h 55m

S$ 827

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 29-1

10:35-20:15

Nonstop17h 40m

Singapore Changi

Sun 8-2

22:20-21:15

Nonstop14h 55m

S$ 827

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 28-1

11:00-00:55

1 stop21h 55m

Singapore Changi

Wed 4-2

10:10-09:00

Nonstop14h 50m

S$ 843

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 31-1

22:59-06:55

2 stops39h 56m

Singapore Changi

Thu 5-2

22:20-21:15

Nonstop14h 55m

S$ 845

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 29-4

12:40-23:40

1 stop20h 00m

Singapore Changi

Sat 27-6

07:30-10:40

1 stop18h 10m

S$ 849

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 27-4

23:30-21:30

1 stop31h 00m

Singapore Changi

Wed 24-6

22:50-15:00

1 stop31h 10m

S$ 849

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 28-4

12:40-23:40

1 stop20h 00m

Singapore Changi

Mon 22-6

22:30-10:40

1 stop27h 10m

S$ 849

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 3-5

23:30-21:30

1 stop31h 00m

Singapore Changi

Sun 28-6

22:50-15:00

1 stop31h 10m

S$ 849

Flights are sorted by cheapest return flights first.

Deals found on 17-1

Showing 1-10 of 21 results
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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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a return flight from San Francisco to Singapore. Price data was last updated on 16 January 2026.

The best time to book flights from San Francisco to Singapore is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from San Francisco to Singapore (average of S$ 501). Flying from San Francisco to Singapore in June is currently the most expensive (average of S$ 978). 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.

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

Find hourly flight availability from San Francisco to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 January 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Singapore as you normally would.

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 18 January 2026.
Get a feel of what it's like to fly with Singapore Airlines and United Airlines from San Francisco to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.3

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.3

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.3

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.

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?

    Singapore Changi is the airport most travellers will use when flying to Singapore from San Francisco. Booking flights from San Francisco (SFO) to Changi (SIN) should be relatively easy as there are 4 daily flights to Singapore from 2 different airlines. 16h 25m is how long a flight from San Francisco to Singapore Changi will take if you book a nonstop flight.

  • How popular is this San Francisco to Singapore flight route?

  • How long is the flight from San Francisco to Singapore?

    Departing from San Francisco to Singapore will take you 17h 40m. San Francisco and Singapore are separated by a distance of 13572 km. All flights are typically direct.

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

    According to our current data, United Airlines (S$ 970), and Singapore Airlines (S$ 1,014) offers the cheapest pricing from San Francisco to Singapore. United Airlines is 16% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from San Francisco to Singapore?

    The cheapest flight price from San Francisco to Singapore is S$ 1,154. On average you can expect to pay S$ 1,899. The most popular route, (San Francisco - Singapore Changi), can usually be booked for S$ 749.

  • Can I find deals for flights from San Francisco to Singapore that include hotel bookings?

    Yes. In addition to deals on San Francisco to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Singapore?

    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.

  • Can I find deals for business class flights from San Francisco to Singapore?

    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.

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

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Singapore (average of S$ 501). Flying from San Francisco to Singapore in June is currently the most expensive (average of S$ 978). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Fly from San Francisco to Singapore on these airlines

Choose from the following airlines for your flight from San Francisco to Singapore. Flights are based on user searches made on Cheapflights and were last updated on 18 January 2026.

Top 2 airlines flying from San Francisco to Singapore

Discover the top 2 airlines that operate flights from San Francisco to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 18 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestS$ 970AverageS$ 1,578FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Singapore AirlinesCheapestS$ 1,014AverageS$ 1,538FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Francisco to Singapore?

Cheapflights makes it easy to find San Francisco to Singapore flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights simply makes it quick and affordable to book flights from San Francisco to Singapore by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Singapore from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from San Francisco to Singapore become cheaper?

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.

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