Cheap flights from San Francisco to Singapore from S$ 434

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 26-9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SIN
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from San Francisco to Singapore Changi are usually found in September or October, 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 16 September 2025.

Round-trip from

S$ 785

One-way from

S$ 434

Popular in

December

Cheapest in

September

Average price

S$ 969

Good round-trip deal

S$ 1,090 or less

Good one-way deal

S$ 531 or less
Air India
  • Air India
  • 10-11-24-11
  • 3 total stops
  • 52h 20m total
  • San Francisco to Singapore
United Airlines
  • United Airlines
  • 29-9
  • Nonstop
  • 16h 40m total
  • San Francisco to Singapore
Highest demand for flights based on searches. 15% potential increase in price (S$ 275 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (S$ 89 potential savings vs. average return price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from San Francisco to Singapore Changi.
Price to beat on a one-way flight from San Francisco to Singapore Changi.

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 16 September 2025.

Mon 10-1122:30SFO - SIN
2 stops28h 35mAir India
Mon 24-1123:00SIN - SFO
1 stop23h 45mAir India
Deal found 14-9S$ 785
Mon 3-1122:30SFO - SIN
1 stop28h 35mAir India
Sun 16-1120:30SIN - SFO
1 stop26h 15mAir India
Deal found 15-9S$ 787
Sun 5-1023:55SFO - SIN
1 stop28h 00mPhilippine Airlines
Thu 9-1010:25SIN - SFO
1 stop25h 25mPhilippine Airlines
Deal found 14-9S$ 788
Tue 7-1023:55SFO - SIN
1 stop22h 25mPhilippine Airlines
Tue 14-1010:25SIN - SFO
1 stop25h 25mPhilippine Airlines
Deal found 13-9S$ 792
Mon 20-1011:30SFO - SIN
Nonstop16h 40mSingapore Airlines
Wed 29-1009:15SIN - SFO
Nonstop14h 35mSingapore Airlines
Deal found 14-9S$ 793
Wed 29-1010:40SFO - SIN
Nonstop17h 25mSingapore Airlines
Wed 5-1109:15SIN - SFO
Nonstop14h 35mSingapore Airlines
Deal found 14-9S$ 798
Tue 11-1122:30SFO - SIN
1 stop28h 40mPhilippine Airlines
Tue 25-1114:10SIN - SFO
1 stop21h 20mPhilippine Airlines
Deal found 15-9S$ 802
Wed 15-1011:30SFO - SIN
Nonstop16h 40mSingapore Airlines
Fri 24-1009:15SIN - SFO
Nonstop15h 25mSingapore Airlines
Deal found 14-9S$ 803
Tue 7-1023:55SFO - SIN
1 stop22h 25mPhilippine Airlines
Wed 15-1014:35SIN - SFO
1 stop21h 15mPhilippine Airlines
Deal found 15-9S$ 805
Sun 21-923:55SFO - SIN
1 stop28h 00mPhilippine Airlines
Mon 29-914:35SIN - SFO
1 stop21h 15mPhilippine Airlines
Deal found 14-9S$ 806
Thu 18-923:55SFO - SIN
1 stop28h 00mPhilippine Airlines
Sat 4-1020:00SIN - SFO
1 stop39h 50mPhilippine Airlines
Deal found 15-9S$ 807

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 16 September 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 2-2

10:35-20:15

Nonstop17h 40m

Singapore Changi

Sun 15-2

22:20-21:15

Nonstop14h 55m

S$ 821

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 24-1

00:20-06:55

1 stop38h 35m

Singapore Changi

Mon 2-2

10:10-09:00

Nonstop14h 50m

S$ 834

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 25-1

00:20-06:55

1 stop38h 35m

Singapore Changi

Sun 8-2

10:45-15:20

1 stop20h 35m

S$ 847

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 1-12

00:20-00:55

1 stop32h 35m

Singapore Changi

Wed 24-12

22:20-21:15

Nonstop14h 55m

S$ 849

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 1-3

11:40-05:00

1 stop25h 20m

Singapore Changi

Wed 11-3

01:35-10:30

1 stop23h 55m

S$ 926

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 27-11

12:30-20:25

2 stops39h 55m

Singapore Changi

Sat 13-12

01:35-09:30

1 stop23h 55m

S$ 934

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 4-3

06:05-05:00

2 stops30h 55m

Singapore Changi

Tue 17-3

10:40-19:28

2 stops23h 48m

S$ 940

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 12-11

15:30-00:10

2 stops40h 40m

Singapore Changi

Tue 18-11

01:35-09:30

1 stop23h 55m

S$ 948

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 22-11

15:30-05:00

2 stops45h 30m

Singapore Changi

Sun 21-12

22:30-09:33

2 stops51h 03m

S$ 962

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 1-3

10:35-20:15

Nonstop17h 40m

Singapore Changi

Mon 16-3

10:10-10:05

Nonstop14h 55m

S$ 972

Flights are sorted by cheapest return flights first.

Deals found on 15-9

Showing 1-10 of 22 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 12 September 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 16 September 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.

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 16 September 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.

Comfort

8.0

Overall

8.1

Food

7.7

Boarding

8.2

Crew

8.6

Entertainment

8.0

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

Comfort

8.0

Overall

8.1

Food

7.7

Boarding

8.2

Crew

8.6

Entertainment

8.0

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

Comfort

8.0

Overall

8.1

Food

7.7

Boarding

8.2

Crew

8.6

Entertainment

8.0

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 35m 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$ 930), and United Airlines (S$ 965) offers the cheapest pricing from San Francisco to Singapore. Singapore Airlines is 23% 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$ 526. On average you can expect to pay S$ 978. The most popular route, (San Francisco - Singapore Changi), can usually be booked for S$ 679.

  • 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 16 September 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapestS$ 930AverageS$ 1,171FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
United AirlinesCheapestS$ 965AverageS$ 1,121FlexibilityNo 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.

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