Cheap flights from San Francisco to Singapore from S$ 428

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 10-10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SIN
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from San Francisco to Singapore Changi are usually found in October or September, booked 74 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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 15 August 2025.

Round-trip from

S$ 776

One-way from

S$ 428

Popular in

December

Cheapest in

October

Average price

S$ 1,009
Air India
  • Air India
  • 2-2-15-2
  • 2 total stops
  • 66h 20m total
  • San Francisco to Singapore
Philippine Airlines
  • Philippine Airlines
  • 10-10
  • 1 total stop
  • 28h 00m total
  • San Francisco to Singapore
Highest demand for flights based on searches. 14% potential increase in price (S$ 273 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (S$ 89 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from San Francisco to Singapore

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 15 August 2025.

Wed 8-1023:55SFO - SIN
1 stop32h 25mPhilippine Airlines
Mon 13-1000:20SIN - SFO
1 stop35h 30mPhilippine Airlines
Deal found 14-8S$ 778
Fri 12-910:00SFO - SIN
1 stop30h 15mAir India
Fri 19-910:30SIN - SFO
1 stop46h 30mAir India
Deal found 13-8S$ 790
Mon 6-1011:30SFO - SIN
Nonstop16h 40mSingapore Airlines
Tue 14-1009:15SIN - SFO
Nonstop15h 25mSingapore Airlines
Deal found 15-8S$ 791
Tue 9-923:55SFO - SIN
1 stop22h 25mPhilippine Airlines
Mon 29-914:35SIN - SFO
1 stop21h 15mPhilippine Airlines
Deal found 15-8S$ 792
Mon 29-910:00SFO - SIN
1 stop30h 15mAir India
Tue 21-1008:45SIN - SFO
1 stop37h 15mAir India
Deal found 14-8S$ 794
Mon 29-923:55SFO - SIN
1 stop28h 00mPhilippine Airlines
Tue 14-1000:20SIN - SFO
1 stop35h 30mPhilippine Airlines
Deal found 15-8S$ 796
Thu 11-912:00SFO - SIN
Nonstop16h 10mSingapore Airlines
Thu 18-909:15SIN - SFO
Nonstop15h 25mSingapore Airlines
Deal found 14-8S$ 797
Mon 15-912:00SFO - SIN
Nonstop16h 10mSingapore Airlines
Wed 1-1009:15SIN - SFO
Nonstop15h 25mSingapore Airlines
Deal found 14-8S$ 799
Wed 27-820:00SFO - SIN
2 stops31h 30mAir India
Wed 17-923:00SIN - SFO
1 stop47h 00mAir India
Deal found 15-8S$ 803
Mon 29-910:00SFO - SIN
1 stop30h 15mAir India
Mon 6-1019:40SIN - SFO
1 stop37h 20mAir India
Deal found 14-8S$ 805
Tue 16-921:00SFO - SIN
2 stops31h 00mAir India
Fri 19-910:30SIN - SFO
1 stop46h 30mAir India
Deal found 13-8S$ 810

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 15 August 2025.
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

Mon 29-9

22:40-06:15

Nonstop16h 35m

Singapore Changi

Fri 10-10

08:45-09:15

Nonstop15h 30m

S$ 822

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 2-2

22:35-08:00

Nonstop17h 25m

Singapore Changi

Fri 13-2

10:10-08:55

Nonstop14h 45m

S$ 822

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 27-11

22:35-08:00

Nonstop17h 25m

Singapore Changi

Fri 26-12

22:20-21:15

Nonstop14h 55m

S$ 822

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 23-9

10:45-18:25

Nonstop16h 40m

Singapore Changi

Sun 5-10

20:40-21:10

Nonstop15h 30m

S$ 822

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 7-9

01:20-06:40

1 stop38h 20m

Singapore Changi

Mon 10-11

10:10-09:15

Nonstop15h 05m

S$ 835

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 27-1

00:20-06:55

1 stop38h 35m

Singapore Changi

Sun 8-2

22:20-21:15

Nonstop14h 55m

S$ 835

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 9-2

00:20-06:55

1 stop38h 35m

Singapore Changi

Tue 17-2

10:10-09:05

Nonstop14h 55m

S$ 835

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 28-9

10:45-18:25

Nonstop16h 40m

Singapore Changi

Sat 4-10

11:05-16:30

1 stop20h 25m

S$ 835

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 13-1

00:20-06:55

1 stop38h 35m

Singapore Changi

Thu 29-1

10:10-09:00

Nonstop14h 50m

S$ 835

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 13-1

00:20-06:55

1 stop38h 35m

Singapore Changi

Tue 3-2

22:20-21:15

Nonstop14h 55m

S$ 835

Flights are sorted by cheapest return flights first.

Deals found on 15-8

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 8 August 2025.

The best time to book flights from San Francisco to Singapore is 74 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 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 15 August 2025.

When flying from San Francisco to Singapore, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 13% versus a flight at midday.

Weekly flight availability from San Francisco to Singapore

Explore weekly flight availability from San Francisco to Singapore. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 August 2025.

The most flights from SFO to SIN are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost for a return flight from San Francisco to Singapore?

What’s the top stopover airport for flights from San Francisco to Singapore?

Share of one-stop return flights from San Francisco to Singapore chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Taipei City (TPE) – chosen by Cheapflights users on 38% of one-stop itineraries from San Francisco to Singapore on Cheapflights.

What’s the cheapest stopover airport for flights from San Francisco to Singapore?

Average return fare for one-stop flights from San Francisco to Singapore, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Incheon (ICN) is the most affordable one-stop option, with an average return flight price of S$ 986.

What’s the fastest stopover option from San Francisco to Singapore?

Shortest average travel time for one-stop one-way flights from San Francisco to Singapore, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Incheon (ICN) have the shortest average one-way travel time for one-stop routes: 20h 30m.

Which airport typically offers the quickest stopover for flights from San Francisco to Singapore?

Average stopover duration for one-stop one-way flights from San Francisco to Singapore, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Taipei City (TPE) offer the fastest connection on this route, with an average stopover time of 2h 19m.

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 15 August 2025.
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.

Crew

8.6

Entertainment

8.0

Boarding

8.2

Food

7.7

Comfort

8.0

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Crew

8.6

Entertainment

8.0

Boarding

8.2

Food

7.7

Comfort

8.0

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Crew

8.6

Entertainment

8.0

Boarding

8.2

Food

7.7

Comfort

8.0

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

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 10m 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?

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

    According to our current data, United Airlines (S$ 927), and Singapore Airlines (S$ 931) offers the cheapest pricing from San Francisco to Singapore. United Airlines is 24% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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.

See more FAQs

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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 15 August 2025.

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 15 August 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestS$ 927AverageS$ 1,121FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Singapore AirlinesCheapestS$ 931AverageS$ 1,176FlexibilityNo 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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