Singapore

$373+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SIN
Jun 17 — Jun 241
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Cheapflights Tip: The best prices from San Francisco to Singapore Changi are usually found in October or September, booked 74 days in advance, depart on a Monday or Tuesday and return on a Wednesday

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 June 12, 2025.

Round-trip from

$781
(United Airlines)

One-way from

$373
(Korean Air)

Popular in

December

Cheapest in

October

Average price

$1,263

Good round-trip deal

$689 or less

Good one-way deal

$378 or less
From San Francisco to Singapore Changi
One-way flight from San Francisco to Singapore Changi
Highest demand for flights based on searches. 12% potential increase in price ($141 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($50 potential savings vs. average RT price).
Average for round-trip flights in June 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 June 12, 2025.

This Korean Air deal was found by Cheapflights users on 6/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/203:45 pmSFO - SIN
2 stops40h 55mKorean Air
Sat 8/307:30 amSIN - SFO
2 stops39h 21mKorean Air
Deal found 6/12$778
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
Fri 9/121:20 amSFO - SIN
1 stop24h 55mANA
Tue 9/2310:10 pmSIN - SFO
1 stop26h 20mANA
Deal found 6/12$779
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/221:45 amSFO - SIN
1 stop32h 00mUnited Airlines
Tue 7/298:45 amSIN - SFO
Nonstop15h 35mUnited Airlines
Deal found 6/12$781
This Gurufare deal was found by Cheapflights users on 6/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:50 pmSFO - SIN
1 stop30h 10mVietnam Airlines
Thu 10/161:10 pmSIN - SFO
1 stop20h 30mVietnam Airlines
Deal found 6/11$785
This Air Canada deal was found by Cheapflights users on 6/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:59 pmSFO - SIN
2 stops40h 06mMultiple Airlines
Sat 10/119:10 amSIN - SFO
1 stop21h 18mMultiple Airlines
Deal found 6/12$792
This oojo deal was found by Cheapflights users on 6/10. 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.
Fri 7/2511:30 pmSFO - SIN
1 stop31h 00mAsiana Airlines
Sun 8/1010:50 pmSIN - SFO
1 stop32h 10mAsiana Airlines
Deal found 6/10$797
This Air Canada deal was found by Cheapflights users on 6/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/87:10 amSFO - SIN
1 stop32h 55mAir Canada
Thu 7/179:10 amSIN - SFO
2 stops39h 52mAir Canada
Deal found 6/12$799
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3012:00 pmSFO - SIN
2 stops46h 30mChina Eastern
Sat 9/202:30 amSIN - SFO
3 stops45h 35mChina Eastern
Deal found 6/12$802
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/85:35 amSFO - SIN
2 stops27h 05mDelta
Tue 9/167:30 amSIN - SFO
2 stops26h 55mDelta
Deal found 6/10$804
This oojo deal was found by Cheapflights users on 6/11. 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.
Wed 8/1311:30 amSFO - SIN
Nonstop16h 40mSingapore Airlines
Mon 8/259:15 amSIN - SFO
Nonstop15h 25mSingapore Airlines
Deal found 6/11$812
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/101:05 amSFO - SIN
1 stop20h 30mChina Airlines
Tue 9/21:45 pmSIN - SFO
1 stop21h 45mChina Airlines
Deal found 6/11$825
This Cathay Pacific deal was found by Cheapflights users on 6/10. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2411:25 amSFO - SIN
1 stop21h 00mCathay Pacific
Mon 12/221:25 amSIN - SFO
1 stop35h 35mCathay Pacific
Deal found 6/10$838

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 June 12, 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

Wed 8/20

3:45 pm-11:40 pm

2 stops40h 55m

Singapore Changi

Sat 8/30

7:30 am-7:51 am

2 stops39h 21m

$778

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Fri 9/12

1:20 am-5:15 pm

1 stop24h 55m

Singapore Changi

Tue 9/23

10:10 pm-9:30 am

1 stop26h 20m

$779

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 7/22

1:45 am-12:45 am

1 stop32h 00m

Singapore Changi

Tue 7/29

8:45 am-9:20 am

Nonstop15h 35m

$781

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 10/1

10:50 pm-8:00 pm

1 stop30h 10m

Singapore Changi

Thu 10/16

1:10 pm-6:40 pm

1 stop20h 30m

$785

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 10/1

11:59 pm-7:05 am

2 stops40h 06m

Singapore Changi

Sat 10/11

9:10 am-3:28 pm

1 stop21h 18m

$792

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Fri 7/25

11:30 pm-9:30 pm

1 stop31h 00m

Singapore Changi

Sun 8/10

10:50 pm-4:00 pm

1 stop32h 10m

$797

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Tue 7/8

7:10 am-7:05 am

1 stop32h 55m

Singapore Changi

Thu 7/17

9:10 am-10:02 am

2 stops39h 52m

$799

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 8/30

12:00 pm-1:30 am

2 stops46h 30m

Singapore Changi

Sat 9/20

2:30 am-9:05 am

3 stops45h 35m

$802

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 9/8

5:35 am-5:00 am

2 stops32h 25m

Singapore Changi

Mon 9/15

7:30 am-9:58 pm

2 stops29h 28m

$804

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 8/13

11:30 am-7:10 pm

Nonstop16h 40m

Singapore Changi

Mon 8/25

9:15 am-9:40 am

Nonstop15h 25m

$812

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 30 results
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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 June 9, 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, September is the cheapest month in which you can book a flight from San Francisco to Singapore (average of $1,011). Flying from San Francisco to Singapore in December is currently the most expensive (average of $1,684). 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 June 12, 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 29% 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 June 8, 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.

Weekly flight availability from San Francisco to Singapore

Explore weekly flight availability from San Francisco to Singapore. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from SFO to SIN are scheduled on a Monday (4 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

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 June 12, 2025.
To help decide which airline to fly from San Francisco to Singapore, see what other customers have to say about STARLUX Airlines, Korean Air and Japan Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
8.3
Very good

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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 20m on average. When it comes time to book airfare, you have a few options: there are 3 outbound flights from San Francisco to Changi offered by 14 different airlines.

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

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

    Our cheapest airline available from San Francisco to Singapore is United Airlines. Our recent data shows that you can find tickets from as low as $781 on this airline. Additional options worth looking into are ANA and Asiana Airlines, starting at $789 and $797 round-trip. United Airlines is priced at 21% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San Francisco to Singapore one-way?

    The cheapest airline one-way is Korean Air, with whom users have recently found tickets for as low as $373. However, be on the lookout for offers from Vietnam Airlines and Air India, as they are both options that can get you from San Francisco to Singapore for a low price.

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

    While on average a flight from San Francisco to Singapore is generally $1,913, our data shows the cheapest flight currently is $317. When looking at the most popular route, (San Francisco - Singapore Changi), you can expect to pay $534 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 Taipei City?

    Taipei 101, Shilin Night Market, and Raohe Street Night Market are currently the most popular points of interest in Taipei City at the moment. Taipei 101, Shilin Night Market and Raohe Street Night Market are located about 21.0 mi, 18.3 mi, and 21.6 mi, respectively from Taipei City Taiwan Taoyuan Intl if you are interested in checking them out. Travelers in need of a car in Taipei City can rent one for about $69 per day.

  • What are some popular points of interest to see during a layover in Hong Kong?

    If you're on a layover in Hong Kong and looking for things to do, consider visiting Hong Kong Disneyland, Shatin Baptist Church, or Ocean Park. Travelers on a layover in Hong Kong can visit Hong Kong Disneyland, Shatin Baptist Church, and Ocean Park, by traveling 7.8 mi, 18.3 mi, and 16.9 mi, respectively after landing at Hong Kong Intl.

  • 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, September is the cheapest month in which you can book a flight from San Francisco to Singapore (average of $1,011). Flying from San Francisco to Singapore in December is currently the most expensive (average of $1,684). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapest$528Average$862FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$576Average$1,214FlexibilityNo cancel feeOn-time70%
China EasternCheapest$675Average$766FlexibilityNo cancel feeOn-time62%
Singapore AirlinesCheapest$680Average$904FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$684Average$788FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$686Average$806FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$697Average$1,012FlexibilityNo cancel feeOn-time76%
Japan AirlinesCheapest$700Average$825FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$728Average$910FlexibilityNo cancel feeOn-time67%
STARLUX AirlinesCheapest$734Average$963FlexibilityNo cancel feeOn-timeN/A

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