Singapore

$327+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SIN
Jul 8 — Jul 151
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Cheapflights Tip: The best prices from San Francisco to Singapore Changi are usually found in October or September, booked 50 days in advance, depart on a Monday or Tuesday and return on a Tuesday

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 July 3, 2025.

Round-trip from

$738
(Korean Air)

One-way from

$327
(oojo)

Popular in

December

Cheapest in

October

Average price

$1,229

Good round-trip deal

$658 or less

Good one-way deal

$350 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 ($145 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 July 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 July 3, 2025.

This Korean Air deal was found by Cheapflights users on 7/3. 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.
Thu 8/143:45 pmSFO - SIN
2 stops37h 10mKorean Air
Sun 8/2410:30 pmSIN - SFO
1 stop27h 30mKorean Air
Deal found 7/3$738
This FlightHub deal was found by Cheapflights users on 7/3. 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 12/311:30 pmSFO - SIN
1 stop30h 25mAsiana Airlines
Tue 12/911:10 pmSIN - SFO
1 stop31h 50mAsiana Airlines
Deal found 7/3$745
This oojo deal was found by Cheapflights users on 7/3. 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 10/18:30 pmSFO - SIN
1 stop31h 00mAir India
Sat 10/1111:00 pmSIN - SFO
1 stop47h 00mAir India
Deal found 7/3$748
This Cheapflightsfares deal was found by Cheapflights users on 7/2. 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.
Thu 8/712:00 pmSFO - SIN
2 stops32h 40mChina Eastern
Sun 8/176:10 pmSIN - SFO
1 stop29h 55mChina Eastern
Deal found 7/2$758
This CrystalTravel deal was found by Cheapflights users on 7/1. 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.
Sun 7/2712:40 pmSFO - SIN
1 stop21h 05mANA
Sun 8/1010:10 pmSIN - SFO
1 stop27h 45mANA
Deal found 7/1$759
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Mon 10/610:40 pmSFO - SIN
Nonstop16h 35mUnited Airlines
Sun 10/198:40 pmSIN - SFO
Nonstop15h 30mUnited Airlines
Deal found 7/3$760
This FlightHub deal was found by Cheapflights users on 7/2. 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.
Fri 10/3111:30 pmSFO - SIN
1 stop23h 10mPhilippine Airlines
Tue 11/1110:30 amSIN - SFO
1 stop25h 00mPhilippine Airlines
Deal found 7/2$763
This Air Canada deal was found by Cheapflights users on 7/1. 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.
Mon 9/291:05 pmSFO - SIN
2 stops23h 55mAir Canada
Fri 10/101:45 amSIN - SFO
2 stops23h 43mAir Canada
Deal found 7/1$764
This oojo deal was found by Cheapflights users on 7/3. 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.
Thu 9/1812:55 pmSFO - SIN
1 stop20h 55mCathay Pacific
Sat 10/41:50 amSIN - SFO
1 stop35h 50mCathay Pacific
Deal found 7/3$785

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 July 3, 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

Thu 8/14

3:45 pm-7:55 pm

2 stops37h 10m

Singapore Changi

Sun 8/24

10:30 pm-11:00 am

1 stop27h 30m

$738

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 12/3

11:30 pm-9:55 pm

1 stop30h 25m

Singapore Changi

Tue 12/9

11:10 pm-3:00 pm

1 stop31h 50m

$745

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 10/1

8:30 pm-6:30 pm

1 stop31h 00m

Singapore Changi

Sat 10/11

11:00 pm-7:00 am

1 stop47h 00m

$748

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 8/7

12:00 pm-11:40 am

2 stops32h 40m

Singapore Changi

Sun 8/17

6:10 pm-9:05 am

1 stop29h 55m

$758

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 7/27

12:40 pm-12:45 am

1 stop21h 05m

Singapore Changi

Sun 8/10

10:10 pm-10:55 am

1 stop27h 45m

$759

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 10/6

10:45 am-6:25 pm

Nonstop16h 40m

Singapore Changi

Wed 10/22

8:45 am-9:15 am

Nonstop15h 30m

$760

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Fri 10/31

11:30 pm-1:40 pm

1 stop23h 10m

Singapore Changi

Wed 11/12

10:30 am-7:30 pm

1 stop25h 00m

$763

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 9/29

4:35 pm-4:00 am

1 stop20h 25m

Singapore Changi

Fri 10/10

1:45 am-10:28 am

2 stops23h 43m

$764

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 9/18

12:55 pm-12:50 am

1 stop20h 55m

Singapore Changi

Sat 10/4

1:50 am-10:40 pm

1 stop35h 50m

$785

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 7/28

11:30 pm-9:30 pm

1 stop31h 00m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 17 results
1
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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 27, 2025.

The best time to book flights from San Francisco to Singapore is 50 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 $1,008). Flying from San Francisco to Singapore in December is currently the most expensive (average of $1,674). 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 July 3, 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 June 29, 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 July 3, 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).

How much does it cost to fly round-trip 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 July 3, 2025.
See what other customers who have flown with Korean Air, ANA, and Asiana Airlines 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.

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
8.4
Very good

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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 Korean Air. Our recent data shows that you can find tickets from as low as $738 on this airline. Additional options worth looking into are Asiana Airlines and Air India, starting at $745 and $748 round-trip. Korean Air is priced at 25% 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 Asiana Airlines, with whom users have recently found tickets for as low as $327. However, be on the lookout for offers from Singapore Airlines and ANA, 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 $1,947, our data shows the cheapest flight currently is $286. When looking at the most popular route, (San Francisco - Singapore Changi), you can expect to pay $533 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 $78 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, October is the cheapest month in which you can book a flight from San Francisco to Singapore (average of $1,008). Flying from San Francisco to Singapore in December is currently the most expensive (average of $1,674). 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapest$528Average$862FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$576Average$1,208FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$665Average$758FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$669Average$883FlexibilityNo cancel feeOn-time81%
China EasternCheapest$675Average$766FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$684Average$788FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$686Average$816FlexibilityNo cancel feeOn-time60%
Japan AirlinesCheapest$700Average$821FlexibilityNo cancel feeOn-time79%
STARLUX AirlinesCheapest$727Average$965FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$728Average$909FlexibilityNo cancel feeOn-time67%

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