Cheap flights from San Francisco to Singapore from S$ 403

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 21-4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SIN
4 Apr — 11 Apr1
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 88 days in advance, depart on a Monday or Thursday and return on a Saturday

Cheap 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 5 March 2026.

Wed 13-511:00
SFO
-
SIN
Nonstop17h 10m
Singapore Airlines
Mon 25-509:15
SIN
-
SFO
Nonstop14h 55m
Singapore Airlines
Deal found 3-3S$ 736
Sun 19-411:00
SFO
-
SIN
Nonstop17h 10m
Singapore Airlines
Mon 4-509:15
SIN
-
SFO
Nonstop14h 55m
Singapore Airlines
Deal found 1-3S$ 766
Mon 7-900:30
SFO
-
SIN
1 stop41h 35m
Philippine Airlines
Tue 29-914:30
SIN
-
SFO
1 stop21h 40m
Philippine Airlines
Deal found 4-3S$ 789
Sun 19-416:17
SFO
-
SIN
2 stops40h 38m
Korean Air
Mon 4-507:30
SIN
-
SFO
1 stop18h 10m
Korean Air
Deal found 28-2S$ 790
Tue 11-806:00
SFO
-
SIN
1 stop20h 35m
Singapore Airlines
Fri 11-909:15
SIN
-
SFO
Nonstop15h 35m
Singapore Airlines
Deal found 3-3S$ 791
Sun 13-900:30
SFO
-
SIN
1 stop27h 25m
Philippine Airlines
Mon 28-910:05
SIN
-
SFO
1 stop26h 05m
Philippine Airlines
Deal found 4-3S$ 795
Thu 8-1011:45
SFO
-
SIN
Nonstop16h 25m
Singapore Airlines
Sat 24-1009:15
SIN
-
SFO
Nonstop15h 35m
Singapore Airlines
Deal found 4-3S$ 796
Wed 11-1120:15
SFO
-
SIN
Nonstop17h 30m
Singapore Airlines
Mon 16-1119:55
SIN
-
SFO
Nonstop14h 40m
Singapore Airlines
Deal found 3-3S$ 798
Tue 11-806:00
SFO
-
SIN
1 stop20h 35m
Singapore Airlines
Tue 25-809:15
SIN
-
SFO
Nonstop15h 35m
Singapore Airlines
Deal found 4-3S$ 799
Mon 2-1116:15
SFO
-
SIN
2 stops39h 55m
Korean Air
Sun 8-1101:35
SIN
-
SFO
1 stop23h 55m
Korean Air
Deal found 1-3S$ 800

Find 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 5 March 2026.

Round-trip from

S$ 736

One-way from

S$ 403

Popular in

December

Cheapest in

September

Average price

S$ 1,037

Good round-trip deal

S$ 752 or less
Singapore Airlines
  • Singapore Airlines
  • 13-5-25-5
  • Nonstop
  • 32h 05m total
  • San Francisco to Singapore
Cathay Pacific
  • Cathay Pacific
  • 21-4
  • 1 total stop
  • 25h 30m total
  • San Francisco to Singapore
Highest demand for flights based on searches. 12% potential increase in price (S$ 209 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (S$ 87 potential savings vs. average return price).
Average for round-trip flights in March 2026
Price to beat on a round-trip flight from San Francisco to Singapore Changi.

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 5 March 2026.
Use the filters below to find and compare flights from San Francisco to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 15-3

11:35-20:15

Nonstop17h 40m

Singapore Changi

Thu 28-5

08:45-09:30

Nonstop15h 45m

S$ 821

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 21-4

12:25-06:40

2 stops27h 15m

Singapore Changi

Tue 5-5

09:00-09:10

Nonstop15h 10m

S$ 838

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 19-4

12:40-05:00

1 stop25h 20m

Singapore Changi

Wed 22-4

22:00-10:40

1 stop27h 40m

S$ 907

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 24-8

13:00-19:15

2 stops39h 15m

Singapore Changi

Sun 30-8

22:00-11:00

1 stop28h 00m

S$ 1,032

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 17-8

13:00-19:15

2 stops39h 15m

Singapore Changi

Sun 30-8

22:00-11:00

1 stop28h 00m

S$ 1,099

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 20-5

10:25-18:35

Nonstop17h 10m

Singapore Changi

Mon 22-6

06:15-10:35

1 stop19h 20m

S$ 1,328

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 15-3

14:55-05:00

2 stops47h 05m

Singapore Changi

Thu 19-3

01:35-10:30

1 stop23h 55m

S$ 1,358
Fastest return journey

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 27-4

21:30-05:30

Nonstop17h 00m

Singapore Changi

Sat 16-5

19:55-19:55

Nonstop15h 00m

S$ 1,394

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 23-6

11:10-18:35

Nonstop16h 25m

Singapore Changi

Sat 4-7

06:15-21:21

2 stops30h 06m

S$ 1,443

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 28-5

07:05-00:45

2 stops26h 40m

Singapore Changi

Thu 2-7

08:45-09:30

Nonstop15h 45m

S$ 1,446

Flights are sorted by cheapest return flights first.

Deals found on 1-3

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 27 February 2026.

The best time to book flights from San Francisco to Singapore is 88 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, August is the cheapest month in which you can book a flight from San Francisco to Singapore (average of S$ 669). Flying from San Francisco to Singapore in June is currently the most expensive (average of S$ 969). 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 5 March 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 5 March 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.

Entertainment

8.0

Crew

8.6

Comfort

8.0

Food

7.8

Boarding

8.3

Overall

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Entertainment

8.0

Crew

8.6

Comfort

8.0

Food

7.8

Boarding

8.3

Overall

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Entertainment

8.0

Crew

8.6

Comfort

8.0

Food

7.8

Boarding

8.3

Overall

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

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 2 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. This flight may include one or multiple stops.

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

    According to our current data, Singapore Airlines (S$ 752), and United Airlines (S$ 997) offers the cheapest pricing from San Francisco to Singapore. Singapore Airlines is 33% 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$ 687. On average you can expect to pay S$ 1,115. The most popular route, (San Francisco - Singapore Changi), can usually be booked for S$ 650.

  • 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, August is the cheapest month in which you can book a flight from San Francisco to Singapore (average of S$ 669). Flying from San Francisco to Singapore in June is currently the most expensive (average of S$ 969). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 5 March 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 5 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapestS$ 752AverageS$ 1,411FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
United AirlinesCheapestS$ 997AverageS$ 1,598FlexibilityNo cancel feeOn-time69%
Search United 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.