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Cheap flights from San Francisco to Singapore from £421

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SIN
21 Jun — 28 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Francisco to Singapore Changi are usually found in September or February, booked 70 days in advance, depart on a Wednesday or Monday and return on a Thursday

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 22 May 2026.

Fri 4/1211:40
SFO
-
SIN
1 stop40h 45m
Korean Air
Sun 20/1222:30
SIN
-
SFO
1 stop27h 00m
Korean Air
Deal found 17/5£717
Mon 31/801:20
SFO
-
SIN
1 stop20h 05m
Cathay Pacific
Mon 30/1118:00
SIN
-
SFO
1 stop19h 15m
Cathay Pacific
Deal found 17/5£720
Tue 24/1110:40
SFO
-
SIN
Nonstop17h 35m
United Airlines
Sun 13/1222:20
SIN
-
SFO
Nonstop14h 55m
United Airlines
Deal found 19/5£721
Sat 12/922:40
SFO
-
SIN
Nonstop16h 35m
United Airlines
Fri 25/908:45
SIN
-
SFO
Nonstop15h 30m
United Airlines
Deal found 17/5£722
Mon 7/916:15
SFO
-
SIN
2 stops36h 00m
Korean Air
Sun 20/922:00
SIN
-
SFO
1 stop27h 40m
Korean Air
Deal found 17/5£725
Sat 5/907:00
SFO
-
SIN
2 stops31h 00m
Delta
Mon 21/901:25
SIN
-
SFO
1 stop24h 15m
Delta
Deal found 18/5£726
Thu 15/1010:50
SFO
-
SIN
Nonstop16h 45m
United Airlines
Fri 23/1006:15
SIN
-
SFO
1 stop19h 15m
United Airlines
Deal found 19/5£728
Sun 30/811:10
SFO
-
SIN
Nonstop16h 25m
United Airlines
Sun 6/911:05
SIN
-
SFO
1 stop20h 25m
United Airlines
Deal found 19/5£728
Fri 30/1012:40
SFO
-
SIN
1 stop25h 20m
Delta
Mon 23/1101:35
SIN
-
SFO
2 stops30h 27m
Delta
Deal found 18/5£730
Tue 29/1222:40
SFO
-
SIN
Nonstop17h 20m
United Airlines
Thu 14/106:35
SIN
-
SFO
1 stop18h 40m
United Airlines
Deal found 18/5£730
Thu 1/1006:05
SFO
-
SIN
2 stops31h 55m
Delta
Sat 17/1022:00
SIN
-
SFO
2 stops33h 02m
Delta
Deal found 19/5£733

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 22 May 2026.

Round-trip from

£720

One-way from

£421

Popular in

December

Cheapest in

September

Average price

£696
Cathay Pacific
  • Cathay Pacific
  • 31/8-30/11
  • 2 total stops
  • 39h 20m total
  • San Francisco to Singapore
Search Deals
Vietnam Airlines
  • Vietnam Airlines
  • 9/8
  • 1 total stop
  • 27h 35m total
  • San Francisco to Singapore
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£61 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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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 858,174 searches. Data last updated 22 May 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

Tue 8/9

08:55-15:45

2 stops39h 50m

Singapore Changi

Tue 15/9

12:40-09:05

3 stops59h 25m

£771

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 12/9

08:27-15:45

2 stops40h 18m

Singapore Changi

Wed 23/9

19:40-13:35

1 stop32h 55m

£920

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 4/11

22:40-08:00

Nonstop17h 20m

Singapore Changi

Fri 20/11

10:10-09:15

Nonstop15h 05m

£923

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 1/8

17:30-23:55

2 stops39h 25m

Singapore Changi

Thu 13/8

22:00-18:59

2 stops35h 59m

£927

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 2/11

10:40-20:15

Nonstop17h 35m

Singapore Changi

Sun 15/11

10:10-09:15

Nonstop15h 05m

£998

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 31/10

22:40-07:00

Nonstop17h 20m

Singapore Changi

Sat 6/2

10:10-09:10

Nonstop15h 00m

£1,057

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Fri 3/7

01:40-06:40

1 stop38h 00m

Singapore Changi

Thu 9/7

20:35-21:20

Nonstop15h 45m

£1,125

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 1/7

12:40-00:45

1 stop21h 05m

Singapore Changi

Wed 8/7

20:35-21:20

Nonstop15h 45m

£1,127

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 28/6

05:50-23:55

2 stops27h 05m

Singapore Changi

Sun 12/7

01:25-23:59

2 stops37h 34m

£1,139
Fastest return journey

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 7/7

11:10-18:35

Nonstop16h 25m

Singapore Changi

Mon 13/7

20:35-21:20

Nonstop15h 45m

£1,165

Flights are sorted by cheapest return flights first.

Deals found on 17/5

Showing 1-10 of 24 resultsSorted by cheapest first
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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?

To ensure you get the cheapest price possible for a flight from San Francisco to Singapore, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from San Francisco to Singapore (average of £488). Flying from San Francisco to Singapore in December is currently the most expensive (average of £1,080). 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 22 May 2026.

When flying from San Francisco to Singapore, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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.

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

    The San Francisco to Singapore Changi flight path was viewed by 7 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    There are many flights that can get you from San Francisco to Singapore in 17h 20m. Fly via China Eastern, Qatar Airways, or United Airlines to get the fastest option. The distance from San Francisco to Singapore is about 8433 mi. This flight may include one or multiple stops.

  • 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, September is the cheapest month in which you can book a flight from San Francisco to Singapore (average of £488). Flying from San Francisco to Singapore in December is currently the most expensive (average of £1,080). 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.

Alternative routes for San Francisco to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Singapore flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from San Francisco to Singapore via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights helps you find that perfect flight to Singapore from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes, we can. To see specific flights from San Francisco to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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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