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$389+ Cheap flights from Santa Rosa (STS) 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SIN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Santa Rosa to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) 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 15, 2025.

Round-trip from

$911
(SmartFares)

One-way from

$389
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$756
From Santa Rosa Sonoma County to Singapore Changi
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One-way flight from Santa Rosa Sonoma County to Singapore Changi
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Highest demand for flights based on searches. 15% potential increase in price ($168 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($54 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Santa Rosa to Singapore

Cheapest flights from Santa Rosa to Singapore
Explore the most affordable flight options available from Santa Rosa to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:45 amSTS - SIN
2 stops47h 10mMultiple Airlines
Wed 11/511:10 pmSIN - STS
2 stops39h 27mMultiple Airlines
Deal found 9/14$911
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 10/297:45 amSTS - SIN
2 stops42h 05mCathay Pacific
Tue 11/41:25 amSIN - STS
2 stops32h 29mCathay Pacific
Deal found 9/14$1,000
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:00 amSTS - SIN
2 stops39h 55mQatar Airways
Tue 12/233:15 amSIN - STS
2 stops35h 02mQatar Airways
Deal found 9/15$1,354
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:40 amSTS - SIN
2 stops25h 10mJapan Airlines
Wed 12/248:15 amSIN - STS
2 stops30h 02mJapan Airlines
Deal found 9/15$1,409
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:45 amSTS - SIN
2 stops33h 00mQatar Airways
Wed 12/248:15 pmSIN - STS
2 stops42h 02mQatar Airways
Deal found 9/15$1,418
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 amSTS - SIN
2 stops33h 45mQatar Airways
Wed 12/248:15 pmSIN - STS
2 stops42h 02mQatar Airways
Deal found 9/15$1,441
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/412:25 pmSTS - SIN
2 stops44h 55mAmerican Airlines
Tue 10/71:55 amSIN - STS
2 stops25h 06mAmerican Airlines
Deal found 9/14$1,455
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/287:00 amSTS - SIN
2 stops35h 00mMultiple Airlines
Fri 10/33:10 amSIN - STS
2 stops33h 56mMultiple Airlines
Deal found 9/15$1,459
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/218:15 pmSTS - SIN
2 stops50h 40mMultiple Airlines
Tue 12/233:15 amSIN - STS
2 stops35h 02mMultiple Airlines
Deal found 9/15$1,477

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa 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 15, 2025.
Use the filters below to find and compare flights from Santa Rosa to Singapore that are best for you.

Fly from

Santa Rosa

Fly to

Singapore

Route

Depart

Return

Price

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sat 2/14

6:15 pm-5:30 am

1 stop43h 15m

Singapore Changi

Sun 2/22

7:00 pm-10:35 pm

1 stop19h 35m

$1,086

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Wed 10/29

2:22 pm-5:45 pm

1 stop36h 23m

Singapore Changi

Tue 11/4

1:25 am-5:54 pm

2 stops32h 29m

$1,213

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Tue 11/18

7:00 am-2:55 pm

2 stops39h 55m

Singapore Changi

Tue 12/23

3:15 am-10:17 pm

2 stops35h 02m

$1,354

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Thu 11/20

7:00 am-8:45 am

2 stops33h 45m

Singapore Changi

Wed 12/24

8:15 pm-10:17 pm

2 stops42h 02m

$1,441

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sun 9/28

7:00 am-3:45 pm

2 stops41h 45m

Singapore Changi

Sat 10/4

6:45 pm-10:06 pm

2 stops42h 21m

$1,459

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Fri 11/21

8:15 pm-8:45 am

2 stops44h 30m

Singapore Changi

Wed 12/24

8:15 pm-10:17 pm

2 stops42h 02m

$1,477

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Tue 11/18

7:00 am-2:55 pm

2 stops39h 55m

Singapore Changi

Thu 12/25

3:15 am-12:18 am

2 stops37h 03m

$1,481

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sat 10/4

7:05 am-3:45 pm

2 stops41h 40m

Singapore Changi

Tue 10/7

3:10 am-10:06 pm

2 stops33h 56m

$1,481

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sat 11/22

8:15 pm-2:55 pm

2 stops50h 40m

Singapore Changi

Tue 12/23

3:15 am-10:17 pm

2 stops35h 02m

$1,488

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Mon 9/22

12:25 pm-12:20 am

2 stops44h 55m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 21 results
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Best time to book a flight from Santa Rosa to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Santa Rosa 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 Santa Rosa to Singapore

What is the cheapest month to book a flight from Santa Rosa to Singapore?

Currently, October is the cheapest month in which you can book a flight from Santa Rosa to Singapore (average of $1,002). Flying from Santa Rosa 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.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Santa Rosa to Singapore?

    For as low as $1,354, Qatar Airways can have you in Singapore from Santa Rosa in 39h 55m. The distance from Santa Rosa to Singapore is about 8381 mi.

  • Can I find deals for flights from Santa Rosa to Singapore that include hotel bookings?

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

  • How can I find direct flights from Santa Rosa to Singapore?

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

  • Can I find deals for business class flights from Santa Rosa to Singapore?

    Yes. Cheapflights offers flight deals from Santa Rosa 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 Santa Rosa to Singapore?

    Currently, October is the cheapest month in which you can book a flight from Santa Rosa to Singapore (average of $1,002). Flying from Santa Rosa 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

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