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$589+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SIN
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
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 November 10, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$996
(Singapore Airlines)

One-way from

$589
(Singapore Airlines)

Popular in

December

Cheapest in

September

Average price

$896
Provider with most accurate pricing for San Francisco-Singapore Changi flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Singapore Changi flights.
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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 ($166 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 10, 2025.

This Qatar Airways deal was found by Cheapflights users on 11/9. 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 11/117:00 amSTS - SIN
2 stops39h 55mMultiple Airlines
Sun 11/303:15 amSIN - STS
2 stops30h 35mMultiple Airlines
Deal found 11/9$1,580
This Singapore Airlines deal was found by Cheapflights users on 11/8. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/177:45 amSTS - SIN
2 stops25h 15mMultiple Airlines
Tue 11/259:00 amSIN - STS
1 stop20h 49mMultiple Airlines
Deal found 11/8$1,722
This Qatar Airways deal was found by Cheapflights users on 11/9. 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 45mMultiple Airlines
Wed 11/263:15 amSIN - STS
2 stops50h 34mMultiple Airlines
Deal found 11/9$1,796
This Qatar Airways deal was found by Cheapflights users on 11/9. 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 40mQatar Airways
Thu 11/273:15 amSIN - STS
2 stops36h 41mQatar Airways
Deal found 11/9$1,987
This Qatar Airways deal was found by Cheapflights users on 11/9. 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
Fri 11/2810:15 amSIN - STS
2 stops47h 35mMultiple Airlines
Deal found 11/9$2,310
This Qatar Airways deal was found by Cheapflights users on 11/9. 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.
Sat 11/228:15 pmSTS - SIN
2 stops57h 00mQatar Airways
Sat 11/298:15 pmSIN - STS
2 stops43h 41mQatar Airways
Deal found 11/9$2,358

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 November 10, 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

7:57 pm-5:45 pm

1 stop29h 48m

Singapore Changi

Sun 2/22

8:45 pm-10:11 am

1 stop29h 26m

$996

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Fri 2/13

7:48 pm-1:00 am

2 stops37h 12m

Singapore Changi

Sun 2/22

8:45 pm-10:11 am

1 stop29h 26m

$1,231

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sun 3/8

8:00 am-2:55 pm

2 stops39h 55m

Singapore Changi

Tue 3/10

3:15 am-10:53 pm

2 stops34h 38m

$1,418

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Thu 11/20

7:00 am-8:45 am

2 stops33h 45m

Singapore Changi

Wed 11/26

3:15 am-1:49 pm

2 stops50h 34m

$1,796

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Fri 2/20

7:57 pm-5:45 pm

1 stop29h 48m

$589

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Thu 3/12

11:18 am-8:45 am

2 stops30h 27m

$701

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Fri 3/13

11:18 am-8:45 am

2 stops30h 27m

$730

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sat 1/3

6:00 am-2:55 pm

2 stops40h 55m

$844

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Fri 1/2

6:00 am-9:15 pm

2 stops47h 15m

$935

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Wed 12/31

6:00 am-2:55 pm

2 stops40h 55m

$981

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 14 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, January is the cheapest month in which you can book a flight from Santa Rosa to Singapore (average of $560). Flying from Santa Rosa to Singapore in June is currently the most expensive (average of $771). 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.

  • 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, January is the cheapest month in which you can book a flight from Santa Rosa to Singapore (average of $560). Flying from Santa Rosa to Singapore in June is currently the most expensive (average of $771). 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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