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$426+ Cheap flights from Singapore (SIN) to San Francisco (SFO)

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SFO
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Singapore Changi to San Francisco are usually found in February or March, booked 60 days in advance, depart on a Thursday or Friday and return on a Monday

Cheap flight deals from Singapore to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to San Francisco (SFO). 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 17, 2025.

Round-trip from

$635
(BYOjet)

One-way from

$426
(United Airlines)

Popular in

December

Cheapest in

February

Average price

$825

Good round-trip deal

$814 or less

Good one-way deal

$491 or less
From Singapore Changi to San Francisco
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One-way flight from Singapore Changi to San Francisco
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Highest demand for flights based on searches. 6% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Singapore Changi to San Francisco.
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Price to beat on a one-way flight from Singapore Changi to San Francisco.
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Find flight deals from Singapore to San Francisco

Cheapest flights from Singapore to San Francisco
Explore the most affordable flight options available from Singapore to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This BYOjet deal was found by Cheapflights users on 9/14. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:15 amSIN - SFO
Nonstop14h 35mSingapore Airlines
Wed 1/219:40 amSFO - SIN
Nonstop17h 25mSingapore Airlines
Deal found 9/14$635
This oojo deal was found by Cheapflights users on 9/14. 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 10/291:25 amSIN - SFO
1 stop35h 50mCathay Pacific
Thu 11/611:25 amSFO - SIN
1 stop33h 40mCathay Pacific
Deal found 9/14$665
This oojo deal was found by Cheapflights users on 9/16. 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 10/261:25 amSIN - SFO
1 stop24h 20mCathay Pacific
Fri 10/3112:25 pmSFO - SIN
1 stop26h 15mCathay Pacific
Deal found 9/16$666
This oojo deal was found by Cheapflights users on 9/15. 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 10/151:50 amSIN - SFO
1 stop35h 50mCathay Pacific
Thu 10/2311:10 pmSFO - SIN
1 stop24h 55mCathay Pacific
Deal found 9/15$670
This oojo deal was found by Cheapflights users on 9/16. 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.
Sat 10/186:00 pmSIN - SFO
1 stop19h 40mCathay Pacific
Sun 10/2612:25 pmSFO - SIN
1 stop26h 15mCathay Pacific
Deal found 9/16$671
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Wed 10/151:50 amSIN - SFO
1 stop35h 50mCathay Pacific
Sat 11/111:55 pmSFO - SIN
1 stop21h 00mCathay Pacific
Deal found 9/15$672
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/221:50 amSIN - SFO
1 stop35h 50mCathay Pacific
Mon 11/311:25 amSFO - SIN
1 stop21h 00mCathay Pacific
Deal found 9/16$673
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:05 pmSIN - SFO
1 stop36h 25mCathay Pacific
Thu 10/212:20 amSFO - SIN
1 stop38h 10mCathay Pacific
Deal found 9/15$674
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:25 amSIN - SFO
1 stop35h 50mCathay Pacific
Sat 11/89:45 pmSFO - SIN
1 stop34h 40mCathay Pacific
Deal found 9/17$675

Cheapflights Fare Finder

 
Customize your flight search to find flights from Singapore to San Francisco 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 17, 2025.
Use the filters below to find and compare flights from Singapore to San Francisco that are best for you.

Fly from

Singapore

Fly to

San Francisco

Route

Depart

Return

Price

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Tue 11/4

2:05 pm-9:15 pm

1 stop23h 10m

San Francisco

Wed 11/12

11:25 am-12:25 am

1 stop21h 00m

$693

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Tue 11/4

4:45 pm-9:15 pm

1 stop20h 30m

San Francisco

Sat 11/8

10:55 pm-1:05 pm

1 stop22h 10m

$693

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Thu 11/6

6:00 pm-9:15 pm

1 stop19h 15m

San Francisco

Tue 11/11

11:25 am-12:25 am

1 stop21h 00m

$694

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Thu 11/6

6:00 pm-9:15 pm

1 stop19h 15m

San Francisco

Sun 11/9

11:25 am-12:25 am

1 stop21h 00m

$694

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Tue 11/18

8:15 pm-9:15 pm

1 stop17h 00m

San Francisco

Wed 11/26

9:45 pm-3:45 pm

1 stop26h 00m

$696

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Sat 10/4

2:00 am-7:55 pm

1 stop32h 55m

San Francisco

Mon 10/6

1:05 am-12:35 pm

1 stop20h 30m

$743

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Fri 11/7

2:25 pm-6:45 pm

1 stop20h 20m

San Francisco

Sun 11/9

11:40 pm-12:40 am

1 stop33h 00m

$743

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Mon 12/8

2:25 pm-6:45 pm

1 stop20h 20m

San Francisco

Mon 1/5

11:40 pm-12:40 am

1 stop33h 00m

$743

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Thu 3/12

2:00 am-7:45 pm

1 stop32h 45m

San Francisco

Sun 3/22

11:40 pm-12:40 am

1 stop34h 00m

$744

SingaporeSan Francisco

SIN - SFO

SINSFO

Singapore Changi

Thu 11/20

2:25 pm-6:45 pm

1 stop20h 20m

San Francisco

Sat 11/29

11:40 pm-1:05 pm

1 stop21h 25m

$744

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 22 results
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The best insider tips for Singapore to San Francisco 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 Singapore to San Francisco trip
Airports
SIN

For a smooth departure, consider early check-in at Jewel, available up to 24 hours before your flight.

Read more about SINby Yulia Denisyuk
SFO

Use BART for a budget-friendly trip from SFO to downtown San Francisco, taking about 40 minutes.

Read more about SFOby Harriet Baskas
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 Singapore to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Singapore 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 Singapore to San Francisco

How far ahead should I book a flight from Singapore to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Singapore to San Francisco. Price data was last updated on September 12, 2025.

Booking 60 days in advance of your planned departure date is, on average, the best time to get cheap flights from Singapore to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Singapore to San Francisco (average of $276). Flying from Singapore to San Francisco in June is currently the most expensive (average of $357). 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 SIN to SFO?

Find hourly flight availability from Singapore to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Singapore to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 26% versus a flight in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Singapore to San Francisco. Price data was last updated on September 14, 2025.

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

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated September 17, 2025.
See what other customers who have flown with EVA Air, China Airlines, and Singapore Airlines from Singapore to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,237 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Entertainment

8.0

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
EVA Air
8.4
Very good
1,237 reviews
EVA Air
8.4
Very good
1,237 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Entertainment

8.0

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
China Airlines
8.3
Very good
768 reviews
EVA Air
8.4
Very good
1,237 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Entertainment

8.0

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
Singapore Airlines
8.1
Very good
1,367 reviews
EVA Air
8.4
Very good
1,237 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Entertainment

8.0

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
Cathay Pacific
7.6
Good
998 reviews
EVA Air
8.4
Very good
1,237 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Entertainment

8.0

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
United Airlines
7.4
Good
8,926 reviews
EVA Air
8.4
Very good
1,237 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Entertainment

8.0

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 Singapore to San Francisco. 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 Singapore to San Francisco?

    San Francisco is the airport most travelers will use when flying to San Francisco from Singapore Changi. Booking flights from Changi (SIN) to San Francisco (SFO) should be relatively easy as there are 4 daily flights to San Francisco from 5 different airlines. 14h 35m is how long a flight from Singapore to San Francisco will take if you book a nonstop flight.

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

    This flight path from Singapore Changi to San Francisco was viewed by 27 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 Singapore to San Francisco?

    A quick flight from Singapore to San Francisco can take about 23h 10m. Cathay Pacific provides one of the quickest options available for as low as $693. Airlines will cover a distance of 8433 mi.

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

    Cheapflights users have booked flights from Singapore to San Francisco round-trip from $670. Other airlines that can offer you cheap pricing are Cathay Pacific, from $750, and Singapore Airlines, from $755. You may be able to fly from Singapore to San Francisco for 23% less than the average price by searching for these airlines.

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

    On average you can expect to pay $1,334 for a flight from Singapore to San Francisco. The cheapest flight overall is $392 while the most popular route, (Singapore Changi - San Francisco) is currently priced at $639.

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

    Flights departing from Singapore and landing in San Francisco layover in Tokyo most frequently.

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

    Most Tokyo visitors opt to spend their time experiencing Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower. Travelers on a layover in Tokyo can visit Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower, by traveling 34.6 mi, 35.3 mi, and 36.7 mi, respectively after landing at Tokyo Narita. Those landing in Tokyo looking to spend some time exploring during their layover can rent a car for about $50 per day.

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

    Singapore to San Francisco flights that have layovers will least frequently stop in Taipei City.

  • Can I find deals for flights from Singapore to San Francisco that include hotel bookings?

    Yes. In addition to deals on Singapore to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Singapore to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to San Francisco.

  • Can I find deals for business class flights from Singapore to San Francisco?

    Yes. Cheapflights offers flight deals from Singapore to San Francisco 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 Singapore to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Singapore to San Francisco (average of $276). Flying from Singapore to San Francisco in June is currently the most expensive (average of $357). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
Santa Cruz
Livermore
South San Francisco
Turlock
Antioch
Watsonville
Santa Clara
Manteca
Sunnyvale
Hollister
Vacaville
Foster City
Union City
Vallejo
Burlingame
Redwood City
San Mateo
San Leandro
Lathrop

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Singapore to San Francisco

Discover the top 5 airlines that operate flights from Singapore to San Francisco. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$670Average$889FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$750Average$856FlexibilityNo cancel feeOn-time72%
Singapore AirlinesCheapest$755Average$1,051FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$768Average$856FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$820Average$913FlexibilityNo cancel feeOn-time74%

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