HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Singapore

$1,170+ Cheap flights from Santa Rosa (STS) to Singapore (SIN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SIN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Santa Rosa to Singapore with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 12, 2025.

This Qatar Airways deal was found by Cheapflights users on 12/9. 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 12/192:24 pmSTS - SIN
2 stops50h 21mMultiple Airlines
Thu 12/253:15 amSIN - STS
2 stops37h 03mMultiple Airlines
Deal found 12/9$2,947
This Qatar Airways deal was found by Cheapflights users on 12/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:00 amSTS - SIN
2 stops47h 15mQatar Airways
Sun 1/43:15 amSIN - STS
2 stops35h 02mQatar Airways
Deal found 12/11$3,363
This Qatar Airways deal was found by Cheapflights users on 12/9. 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.
Sun 12/216:00 amSTS - SIN
2 stops47h 15mQatar Airways
Sun 1/43:15 amSIN - STS
2 stops35h 02mQatar Airways
Deal found 12/9$3,513
This Qatar Airways deal was found by Cheapflights users on 12/9. 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.
Sun 12/216:00 amSTS - SIN
2 stops47h 15mQatar Airways
Sun 1/48:15 pmSIN - STS
2 stops42h 02mQatar Airways
Deal found 12/9$3,553
This Qatar Airways deal was found by Cheapflights users on 12/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:00 amSTS - SIN
2 stops47h 15mQatar Airways
Sun 1/48:15 pmSIN - STS
2 stops42h 02mQatar Airways
Deal found 12/11$3,711
This KAYAK deal was found by Cheapflights users on 12/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:00 amSTS - SIN
2 stops25h 50mJapan Airlines
Mon 1/510:25 pmSIN - STS
2 stops32h 48mJapan Airlines
Deal found 12/11$3,739
This Qatar Airways deal was found by Cheapflights users on 12/9. 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 12/206:00 amSTS - SIN
2 stops47h 15mQatar Airways
Sun 1/43:15 amSIN - STS
2 stops35h 02mQatar Airways
Deal found 12/9$3,789
This Qatar Airways deal was found by Cheapflights users on 12/9. 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 12/206:00 amSTS - SIN
2 stops47h 15mMultiple Airlines
Sun 1/48:15 pmSIN - STS
2 stops42h 02mMultiple Airlines
Deal found 12/9$3,807
This Qatar Airways deal was found by Cheapflights users on 12/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:00 amSTS - SIN
2 stops47h 15mQatar Airways
Sun 1/48:15 pmSIN - STS
2 stops42h 02mQatar Airways
Deal found 12/10$3,829
This Qatar Airways deal was found by Cheapflights users on 12/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:00 amSTS - SIN
2 stops34h 45mQatar Airways
Sun 1/43:15 amSIN - STS
2 stops35h 02mQatar Airways
Deal found 12/10$4,054

Find 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 December 12, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,170
(Qatar Airways)

Popular in

December

Cheapest in

September

Average price

$1,460
Provider with most accurate pricing for San Francisco-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Singapore Changi flights.
Search Deals
From Santa Rosa Sonoma County to Singapore Changi
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 12, 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

Thu 1/22

9:33 pm-2:55 pm

2 stops49h 22m

Singapore Changi

Sun 1/25

3:15 am-11:59 pm

2 stops36h 44m

$1,170

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Wed 4/1

7:00 am-3:45 pm

2 stops41h 45m

Singapore Changi

Sun 4/12

7:40 pm-9:51 pm

2 stops41h 11m

$1,521

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sat 1/3

6:00 am-9:15 pm

2 stops47h 15m

Singapore Changi

Wed 1/21

8:15 pm-11:59 pm

2 stops43h 44m

$1,609

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sat 1/3

6:00 am-9:15 pm

2 stops47h 15m

Singapore Changi

Tue 1/20

8:15 pm-10:35 am

2 stops54h 20m

$1,615

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sat 1/3

6:00 am-9:15 pm

2 stops47h 15m

Singapore Changi

Tue 1/20

9:20 pm-11:59 pm

3 stops66h 39m

$1,704

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Sat 1/3

6:00 am-9:15 pm

2 stops47h 15m

Singapore Changi

Wed 1/21

9:20 pm-10:58 pm

3 stops41h 38m

$1,760

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Tue 6/9

7:00 am-8:50 am

2 stops34h 50m

Singapore Changi

Tue 7/28

3:15 am-7:10 pm

2 stops30h 55m

$1,892

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Tue 6/9

7:00 am-8:50 am

2 stops34h 50m

Singapore Changi

Wed 7/29

3:15 am-7:10 pm

2 stops30h 55m

$1,892

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Thu 6/4

7:00 am-8:50 am

2 stops34h 50m

Singapore Changi

Thu 7/30

3:15 am-7:10 pm

2 stops30h 55m

$1,892

Santa RosaSingapore

STS - SIN

STSSIN

Santa Rosa Sonoma County

Thu 6/4

7:00 am-8:50 am

2 stops34h 50m

Singapore Changi

Wed 7/29

3:15 am-7:10 pm

2 stops30h 55m

$1,892

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 23 results
1
2
3

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 $533). Flying from Santa Rosa to Singapore in June is currently the most expensive (average of $768). 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 $1,170, Qatar Airways can have you in Singapore from Santa Rosa in 49h 22m. 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, January is the cheapest month in which you can book a flight from Santa Rosa to Singapore (average of $533). Flying from Santa Rosa to Singapore in June is currently the most expensive (average of $768). 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.