Cheap flights from San Francisco to Singapore from S$ 442

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 1-2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SIN
27 Dec — 3 Jan1
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 Tuesday and return on a Saturday

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 27 November 2025.

Sat 29-1110:50SFO - SIN
Nonstop17h 25mUnited Airlines
Mon 2-210:45SIN - SFO
2 stops28h 27mUnited Airlines
Deal found 25-11S$ 857
Sun 30-1123:50SFO - SIN
1 stop30h 05mAsiana Airlines
Tue 16-1223:10SIN - SFO
1 stop30h 50mAsiana Airlines
Deal found 24-11S$ 864
Sun 30-1122:35SFO - SIN
2 stops34h 20mUnited Airlines
Thu 5-210:45SIN - SFO
1 stop38h 25mUnited Airlines
Deal found 25-11S$ 866
Sun 30-1120:55SFO - SIN
2 stops36h 00mUnited Airlines
Fri 6-206:35SIN - SFO
1 stop18h 40mUnited Airlines
Deal found 25-11S$ 870
Sat 29-1100:20SFO - SIN
1 stop38h 35mANA
Wed 4-210:45SIN - SFO
1 stop20h 35mANA
Deal found 25-11S$ 873
Wed 3-1211:40SFO - SIN
1 stop25h 20mKorean Air
Wed 17-1210:40SIN - SFO
1 stop38h 50mKorean Air
Deal found 24-11S$ 883
Sat 29-1115:35SFO - SIN
2 stops40h 35mKorean Air
Wed 17-1210:40SIN - SFO
1 stop38h 50mKorean Air
Deal found 24-11S$ 890
Mon 1-1206:00SFO - SIN
2 stops31h 00mDelta
Tue 16-1201:35SIN - SFO
2 stops36h 56mDelta
Deal found 24-11S$ 897
Sat 29-1111:40SFO - SIN
1 stop25h 20mKorean Air
Mon 15-1201:35SIN - SFO
2 stops45h 55mKorean Air
Deal found 24-11S$ 904
Sun 30-1111:40SFO - SIN
1 stop25h 20mKorean Air
Wed 17-1210:40SIN - SFO
2 stops62h 50mKorean Air
Deal found 24-11S$ 905
Sat 29-1100:20SFO - SIN
1 stop38h 35mANA
Fri 6-206:35SIN - SFO
1 stop18h 40mANA
Deal found 25-11S$ 908

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 27 November 2025.

Round-trip from

S$ 844

One-way from

S$ 442

Popular in

December

Cheapest in

September

Average price

S$ 1,136

Good one-way deal

S$ 749 or less
United Airlines
  • United Airlines
  • 13-1-22-1
  • 1 total stop
  • 55h 50m total
  • San Francisco to Singapore
United Airlines
  • United Airlines
  • 1-2
  • Nonstop
  • 17h 40m total
  • San Francisco to Singapore
Highest demand for flights based on searches. 14% potential increase in price (S$ 259 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 November 2025
Price to beat on a one-way 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 27 November 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

Sun 11-1

22:59-06:55

2 stops39h 56m

Singapore Changi

Thu 29-1

22:20-21:15

Nonstop14h 55m

S$ 849

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 22-1

06:00-00:55

2 stops26h 55m

Singapore Changi

Thu 5-2

10:45-17:47

2 stops23h 02m

S$ 879

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 24-2

23:50-21:55

1 stop30h 05m

Singapore Changi

Mon 9-3

23:10-15:00

1 stop30h 50m

S$ 883

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Fri 13-3

12:40-05:00

1 stop25h 20m

Singapore Changi

Tue 7-4

07:30-10:40

1 stop18h 10m

S$ 883

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 21-1

16:03-00:10

2 stops40h 07m

Singapore Changi

Thu 5-2

22:30-09:30

1 stop27h 00m

S$ 890

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 23-2

06:00-00:10

2 stops26h 10m

Singapore Changi

Sat 7-3

22:30-17:48

2 stops35h 18m

S$ 897

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 24-2

06:05-05:00

2 stops30h 55m

Singapore Changi

Tue 10-3

10:40-18:48

2 stops23h 08m

S$ 897

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 22-1

11:25-00:25

1 stop21h 00m

Singapore Changi

Wed 4-2

01:25-16:20

1 stop30h 55m

S$ 938

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 18-1

22:35-08:00

Nonstop17h 25m

Singapore Changi

Thu 19-3

10:10-10:05

Nonstop14h 55m

S$ 986

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 22-2

10:35-20:15

Nonstop17h 40m

Singapore Changi

Thu 5-3

10:10-09:05

Nonstop14h 55m

S$ 986

Flights are sorted by cheapest return flights first.

Deals found on 24-11

Showing 1-10 of 24 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 21 November 2025.

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$ 506). Flying from San Francisco to Singapore in June is currently the most expensive (average of S$ 1,001). 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 27 November 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 42% versus a flight in the afternoon.

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 27 November 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

Food

7.8

Boarding

8.3

Comfort

8.0

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Crew

8.6

Entertainment

8.0

Food

7.8

Boarding

8.3

Comfort

8.0

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Crew

8.6

Entertainment

8.0

Food

7.8

Boarding

8.3

Comfort

8.0

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

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 40m 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 25h 20m. 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, United Airlines (S$ 978), and Singapore Airlines (S$ 1,022) offers the cheapest pricing from San Francisco to Singapore. United Airlines is 18% 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$ 440. On average you can expect to pay S$ 783. The most popular route, (San Francisco - Singapore Changi), can usually be booked for S$ 686.

  • 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$ 506). Flying from San Francisco to Singapore in June is currently the most expensive (average of S$ 1,001). 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 27 November 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestS$ 978AverageS$ 1,136FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Singapore AirlinesCheapestS$ 1,022AverageS$ 1,334FlexibilityNo 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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