Singapore

$339+ Cheap flights from San Francisco (SFO) to Singapore (SIN)

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SIN
Oct 11 — Oct 181
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Singapore with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 Monday or Tuesday and return on a Thursday

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 September 11, 2025.

Round-trip from

$609
(Ovago)

One-way from

$339
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$770

Good round-trip deal

$662 or less

Good one-way deal

$345 or less
From San Francisco to Singapore Changi
One-way flight from San Francisco to Singapore Changi
Highest demand for flights based on searches. 15% potential increase in price ($168 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($54 potential savings vs. average RT 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 September 11, 2025.

This lol.travel deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:45 amSFO - SIN
Nonstop16h 40mUnited Airlines
Wed 10/18:45 amSIN - SFO
Nonstop15h 30mUnited Airlines
Deal found 9/10$609
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:40 amSFO - SIN
Nonstop17h 25mSingapore Airlines
Wed 11/199:15 amSIN - SFO
Nonstop14h 35mSingapore Airlines
Deal found 9/10$616
This CrystalTravel deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:55 pmSFO - SIN
1 stop28h 00mPhilippine Airlines
Tue 10/2110:25 amSIN - SFO
1 stop25h 25mPhilippine Airlines
Deal found 9/10$617
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2911:55 pmSFO - SIN
1 stop22h 25mPhilippine Airlines
Mon 10/2010:25 amSIN - SFO
1 stop25h 25mPhilippine Airlines
Deal found 9/10$618
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1511:55 pmSFO - SIN
1 stop22h 25mPhilippine Airlines
Wed 10/18:00 pmSIN - SFO
1 stop39h 50mPhilippine Airlines
Deal found 9/10$619
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/611:30 amSFO - SIN
Nonstop16h 40mSingapore Airlines
Thu 10/99:15 amSIN - SFO
Nonstop15h 25mSingapore Airlines
Deal found 9/10$625
This oojo deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/611:30 amSFO - SIN
Nonstop16h 40mSingapore Airlines
Wed 10/229:15 amSIN - SFO
Nonstop15h 25mSingapore Airlines
Deal found 9/11$627
This IEagle deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:45 amSFO - SIN
1 stop29h 15mAir India
Sat 11/1511:00 pmSIN - SFO
1 stop23h 45mAir India
Deal found 9/11$629
This IEagle deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3110:45 amSFO - SIN
1 stop29h 15mAir India
Thu 11/2011:00 pmSIN - SFO
1 stop23h 45mAir India
Deal found 9/11$630
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1911:30 amSFO - SIN
Nonstop16h 40mSingapore Airlines
Wed 11/129:15 amSIN - SFO
Nonstop14h 35mSingapore Airlines
Deal found 9/10$631

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 11, 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 9/29

10:45 am-6:25 pm

Nonstop16h 40m

Singapore Changi

Mon 10/20

8:40 pm-9:10 pm

Nonstop15h 30m

$641

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 11/18

11:40 am-5:00 am

1 stop25h 20m

Singapore Changi

Sat 12/6

10:30 pm-9:30 am

1 stop27h 00m

$723

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Fri 3/6

11:40 am-12:10 am

1 stop20h 30m

Singapore Changi

Wed 3/11

1:35 am-10:30 am

1 stop23h 55m

$723

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 10/5

3:43 pm-5:00 am

2 stops46h 17m

Singapore Changi

Sun 11/9

10:30 pm-9:30 am

1 stop27h 00m

$729

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 1/14

1:00 pm-12:10 am

2 stops43h 10m

Singapore Changi

Tue 3/17

10:40 am-10:30 am

1 stop38h 50m

$740

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Fri 11/7

3:30 pm-5:00 am

2 stops45h 30m

Singapore Changi

Tue 11/25

10:30 pm-9:30 am

1 stop27h 00m

$740

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 1/11

1:59 pm-12:10 am

2 stops42h 11m

Singapore Changi

Tue 3/17

10:40 am-10:03 am

2 stops38h 23m

$751

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 10/8

10:45 am-6:25 pm

Nonstop16h 40m

Singapore Changi

Wed 10/22

8:40 pm-9:10 pm

Nonstop15h 30m

$759

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 3/4

11:00 am-12:55 am

1 stop21h 55m

Singapore Changi

Wed 3/18

10:10 am-10:05 am

Nonstop14h 55m

$772

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 3/10

12:00 pm-12:55 am

1 stop21h 55m

Singapore Changi

Mon 3/16

10:10 am-10:05 am

Nonstop14h 55m

$772

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 22 results
1
2
3

The best insider tips for San Francisco to Singapore flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Francisco to Singapore trip
Airports
SFO

For a stress-free departure, use SFO's AirTrain to quickly navigate between terminals and reach your gate efficiently.

Read more about SFOby Harriet Baskas
SIN

Upon arrival at SIN, use the Grab rideshare app for a quick 25-minute ride to the city center.

Read more about SINby Yulia Denisyuk
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on SIN

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more
Harriet Baskas

Harriet Baskas

Expert on SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

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 round-trip 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 round-trip flight from San Francisco to Singapore. Price data was last updated on August 29, 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 month to book a flight from San Francisco to Singapore?

Currently, October is the cheapest month in which you can book a flight from San Francisco to Singapore (average of $1,002). Flying from San Francisco to Singapore in December is currently the most expensive (average of $1,665). 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 September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from San Francisco to Singapore in the morning. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from San Francisco to Singapore?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Singapore. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their San Francisco to Singapore flight should consider departing on Monday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 11, 2025.
See what other customers who have flown with EVA Air, Singapore Airlines, and Cathay Pacific from San Francisco to Singapore have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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?

    To fly from San Francisco to Singapore, you need to book a flight from San Francisco (SFO) to Changi (SIN). Nonstop flights to Singapore Changi from San Francisco take 16h 35m on average. When it comes time to book airfare, you have a few options: there are 4 outbound flights from San Francisco to Changi offered by 15 different airlines.

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

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

    United Airlines and Korean Air can get you from San Francisco to Singapore in just under 16h 40m. Your travel time can differ by up to 8h 40m. There are 8433 mi between San Francisco and Singapore. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from San Francisco to Singapore is China Airlines. Our recent data shows that you can find tickets from as low as $547 on this airline. Additional options worth looking into are Air India and Philippine Airlines, starting at $588 and $602 round-trip. China Airlines is priced at 42% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from San Francisco to Singapore?

    While on average a flight from San Francisco to Singapore is generally $1,352, our data shows the cheapest flight currently is $302. When looking at the most popular route, (San Francisco - Singapore Changi), you can expect to pay $531 for that flight.

  • Where are the most common layover locations when flying from San Francisco to Singapore?

  • What are some popular things to do or see while on a layover in Hong Kong?

    Hong Kong Disneyland, Shatin Baptist Church, and Fa Yeun Street Market are currently the most popular points of interest in Hong Kong at the moment. Hong Kong Disneyland, Shatin Baptist Church and Fa Yeun Street Market are located about 7.8 mi, 18.3 mi, and 16.2 mi, respectively from Hong Kong Intl if you are interested in checking them out.

  • What are some popular points of interest to see during a layover in Taipei City?

    If you're on a layover in Taipei City and looking for things to do, consider visiting Taipei 101, Shilin Night Market, or Raohe Street Night Market. Travelers on a layover in Taipei City can visit Taipei 101, Shilin Night Market, and Raohe Street Night Market, by traveling 21.0 mi, 18.3 mi, and 21.6 mi, respectively after landing at Taipei City Taiwan Taoyuan Intl. Those landing in Taipei City looking to spend some time exploring during their layover can rent a car for about $71 per day.

  • Where are the least popular layover locations for San Francisco to Singapore flights?

  • 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 vacation 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, October is the cheapest month in which you can book a flight from San Francisco to Singapore (average of $1,002). Flying from San Francisco to Singapore in December is currently the most expensive (average of $1,665). 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.

Top 10 airlines flying from San Francisco to Singapore

Discover the top 10 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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$547Average$1,294FlexibilityNo cancel feeOn-time70%
Air IndiaCheapest$588Average$661FlexibilityNo cancel feeOn-timeN/A
Philippine AirlinesCheapest$602Average$767FlexibilityNo cancel feeOn-time60%
Singapore AirlinesCheapest$609Average$858FlexibilityNo cancel feeOn-time81%
ANACheapest$654Average$995FlexibilityNo cancel feeOn-time80%
Asiana AirlinesCheapest$655Average$749FlexibilityNo cancel feeOn-time76%
China EasternCheapest$675Average$734FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$684Average$787FlexibilityNo cancel feeOn-time81%
STARLUX AirlinesCheapest$727Average$969FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$728Average$911FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.