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Cheap flights from San Francisco to Singapore from £264

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
12 Dec — 19 Dec1
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 Thursday or Wednesday and return on a Wednesday

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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 12 November 2025.

Tue 2/1222:59SFO - SIN
2 stops33h 56mUnited Airlines
Thu 25/1222:20SIN - SFO
Nonstop14h 55mUnited Airlines
Deal found 9/11£500
Tue 25/1115:35SFO - SIN
2 stops36h 50mKorean Air
Mon 22/1201:35SIN - SFO
1 stop23h 55mKorean Air
Deal found 11/11£515
Tue 2/1211:40SFO - SIN
1 stop40h 45mKorean Air
Fri 6/322:30SIN - SFO
1 stop27h 00mKorean Air
Deal found 12/11£517
Mon 24/1106:00SFO - SIN
2 stops31h 00mDelta
Thu 25/1210:40SIN - SFO
2 stops23h 02mDelta
Deal found 11/11£519
Tue 2/1215:35SFO - SIN
2 stops36h 50mKorean Air
Wed 4/301:35SIN - SFO
1 stop23h 55mKorean Air
Deal found 12/11£521
Sun 23/1115:35SFO - SIN
2 stops45h 25mKorean Air
Mon 22/1201:35SIN - SFO
1 stop23h 55mKorean Air
Deal found 11/11£521
Wed 3/1205:45SFO - SIN
2 stops31h 15mDelta
Thu 5/322:30SIN - SFO
2 stops35h 49mDelta
Deal found 12/11£525
Wed 3/1211:40SFO - SIN
1 stop25h 20mKorean Air
Wed 4/301:35SIN - SFO
2 stops46h 22mKorean Air
Deal found 12/11£530
Tue 2/1222:35SFO - SIN
Nonstop17h 25mUnited Airlines
Thu 5/310:10SIN - SFO
Nonstop14h 55mUnited Airlines
Deal found 12/11£577
Thu 27/1122:35SFO - SIN
Nonstop17h 25mUnited Airlines
Wed 10/1222:20SIN - SFO
Nonstop14h 55mUnited Airlines
Deal found 10/11£579
Wed 26/1110:15SFO - SIN
1 stop28h 40mUnited Airlines
Fri 26/1210:10SIN - SFO
Nonstop14h 50mUnited Airlines
Deal found 11/11£584
Wed 26/1106:00SFO - SIN
2 stops32h 55mUnited Airlines
Tue 23/1210:10SIN - SFO
Nonstop14h 50mUnited Airlines
Deal found 11/11£585

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 12 November 2025.

Round-trip from

£494

One-way from

£264

Popular in

December

Cheapest in

September

Average price

£657
United Airlines
  • United Airlines
  • 14/1-22/1
  • 1 total stop
  • 38h 15m total
  • San Francisco to Singapore
Search Deals
Korean Air
  • Korean Air
  • 1/2
  • 1 total stop
  • 40h 45m total
  • San Francisco to Singapore
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£87 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 12 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

Tue 2/12

22:59-00:55

2 stops33h 56m

Singapore Changi

Thu 25/12

22:20-21:15

Nonstop14h 55m

£500

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 22/1

07:25-00:55

2 stops25h 30m

Singapore Changi

Thu 5/2

10:45-15:20

1 stop20h 35m

£508

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 26/1

00:20-06:55

1 stop38h 35m

Singapore Changi

Mon 2/2

10:45-17:47

2 stops23h 02m

£509

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 25/11

15:35-20:25

2 stops36h 50m

Singapore Changi

Mon 22/12

01:35-09:30

1 stop23h 55m

£515

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 12/4

23:30-21:30

1 stop31h 00m

Singapore Changi

Mon 27/4

22:50-15:00

1 stop31h 10m

£517

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 11/4

12:40-05:00

1 stop25h 20m

Singapore Changi

Thu 23/4

01:10-10:40

1 stop24h 30m

£517

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 18/2

23:50-21:55

1 stop30h 05m

Singapore Changi

Mon 9/3

23:10-15:00

1 stop30h 50m

£517

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 13/4

16:15-19:55

2 stops36h 40m

Singapore Changi

Thu 23/4

01:10-10:40

1 stop24h 30m

£521

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 2/12

05:45-05:00

2 stops31h 15m

Singapore Changi

Thu 25/12

10:40-17:42

2 stops23h 02m

£525

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 17/2

20:03-05:00

2 stops40h 57m

Singapore Changi

Tue 10/3

10:40-19:28

2 stops23h 48m

£529

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Showing 1-10 of 23 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 7 November 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Singapore, you should look to book at least 88 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, February is the cheapest month in which you can book a flight from San Francisco to Singapore (average of £296). Flying from San Francisco to Singapore in June is currently the most expensive (average of £586). 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 12 November 2025.

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?

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 12 November 2025.
Read reviews from past customers who have flown with United Airlines from San Francisco to Singapore. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,013 reviews
Check prices

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,013 reviews
United Airlines
7.4
Good
9,013 reviews
Check prices

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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?

    You will need to book a flight from San Francisco to Singapore Changi if you want to fly from San Francisco to Singapore. At least 1 airline has flights from San Francisco (SFO) to Changi (SIN) on a regular basis. There are 4 flights to Singapore from the San Francisco airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SFO to SIN to be around 17h 25m.

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

    The San Francisco to Singapore Changi flight path was viewed by 12 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 31h. Fly via United Airlines or Asiana 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.

  • What is the cheapest airline to fly from San Francisco to Singapore round-trip?

    Currently priced at £614, United Airlines will fly you from San Francisco to Singapore and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. United Airlines is 12% 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.

  • 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 £296). Flying from San Francisco to Singapore in June is currently the most expensive (average of £586). 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

Top airline flying from San Francisco to Singapore

Discover the top airline 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 858,174 searches. Data last updated 12 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£614Average£739FlexibilityNo 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 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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