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HK$3,500+ Cheap flights to Santa Rosa

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 24-10. Fares are subject to change and may not be available on all flights or dates of travel.
— STS
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Flights to Santa Rosa in 2025

Find the latest flights to Santa Rosa in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 15 September 2025.

Return from

HK$5,079

One-way from

HK$3,500

Popular in

July

Cheapest in

September

Average price

HK$6,036
China Airlines
  • China Airlines
  • 12-10-18-10
  • 2 total stops
  • 32h 45m total
  • Hong Kong to San Francisco
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24-10
  • 24-10
  • 3 total stops
  • 34h 23m total
  • Hong Kong to Santa Rosa
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Highest demand for flights based on searches. 10% potential increase in price (HK$6,341 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (HK$1,102 potential savings vs. average return price).
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Average for return flights in September 2025
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Find flight deals to Santa Rosa

Cheapest flights to Santa Rosa
Explore the most affordable flight options available to Santa Rosa. Find the lowest fares based on data from user searches, with prices last updated on 15 September 2025.

Sun 19-1015:15HKG - STS
2 stops40h 36mJapan Airlines
Thu 6-1107:45STS - HKG
2 stops38h 05mJapan Airlines
Deal found 13-9HK$11,635
Sat 18-1010:40HKG - STS
2 stops26h 26mJapan Airlines
Thu 6-1107:45STS - HKG
2 stops38h 05mJapan Airlines
Deal found 13-9HK$12,048
Sat 18-1001:25HKG - STS
2 stops49h 36mMultiple Airlines
Fri 7-1113:18STS - HKG
2 stops64h 22mMultiple Airlines
Deal found 13-9HK$13,354
Sun 19-1019:40HKG - STS
2 stops42h 53mQatar Airways
Sat 8-1113:18STS - HKG
2 stops64h 22mQatar Airways
Deal found 13-9HK$13,665
Sat 18-1010:40HKG - STS
2 stops26h 26mJapan Airlines
Sat 8-1107:45STS - HKG
2 stops23h 10mJapan Airlines
Deal found 13-9HK$16,201
Thu 2-1001:25HKG - STS
2 stops49h 30mMultiple Airlines
Sun 12-1007:05STS - HKG
2 stops47h 40mMultiple Airlines
Deal found 14-9HK$18,247
Fri 3-1019:40HKG - STS
2 stops41h 26mQatar Airways
Sun 12-1007:05STS - HKG
2 stops47h 40mQatar Airways
Deal found 14-9HK$19,841

Cheapflights Fare Finder

 
Locate flights to Santa Rosa that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 15 September 2025.
Use the filters below to find and compare flights to Santa Rosa that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Sun 19-10

15:15-16:51

2 stops40h 36m

Santa Rosa Sonoma County

Thu 6-11

07:45-13:50

2 stops38h 05m

HK$11,635

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Sat 18-10

01:25-12:01

2 stops49h 36m

Santa Rosa Sonoma County

Fri 7-11

13:18-21:40

2 stops64h 22m

HK$13,354

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Sun 19-10

19:40-23:33

2 stops42h 53m

Santa Rosa Sonoma County

Sat 8-11

13:18-21:40

2 stops64h 22m

HK$13,665

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Sat 18-10

10:40-22:06

2 stops26h 26m

Santa Rosa Sonoma County

Sat 8-11

07:45-22:55

2 stops23h 10m

HK$16,201

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Fri 20-2

16:40-22:35

2 stops45h 55m

Santa Rosa Sonoma County

Tue 24-2

14:45-22:20

2 stops39h 35m

HK$16,434

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Thu 19-2

00:25-21:58

2 stops37h 33m

Santa Rosa Sonoma County

Tue 24-2

07:00-21:40

2 stops46h 40m

HK$16,675

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Thu 2-10

01:25-11:55

2 stops49h 30m

Santa Rosa Sonoma County

Sun 12-10

07:05-21:45

2 stops47h 40m

HK$18,247

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Fri 24-10

13:40-09:03

3 stops34h 23m

HK$3,500

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Mon 13-10

18:20-12:01

2 stops32h 41m

HK$3,648

Hong KongSanta Rosa

HKG - STS

HKGSTS

Hong Kong Intl

Tue 28-10

22:45-08:44

3 stops48h 59m

HK$3,679

Flights are sorted by cheapest return flights first.

Deals found on 13-9

Showing 1-10 of 16 results
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Best time to book a flight to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa with our price prediction graph.
Estimated return 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 to Santa Rosa

Rainfall in Santa Rosa by month

Plan your trip to Santa Rosa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Santa Rosa ranges from 0.0 - 180.0 mm per month. January is typically the wettest month, when rainfall can reach 180.0 mm. July is typically the driest time to visit Santa Rosa when rainfall is around 0.0 mm.

Temperature in Santa Rosa by month

Plan your trip to Santa Rosa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Santa Rosa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 8.0 C).

How long is the flight to Santa Rosa?

On average, a flight from Hong Kong to Santa Rosa takes 41 hours 26 minutes. Flights to Santa Rosa from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

FAQs about flying to Santa Rosa

  • What airport do you fly into for flights to Santa Rosa?

    Booking a flight to Santa Rosa Sonoma County (STS) is your only option if you intend on flying to Santa Rosa. It is only a 11.5 km journey from Sonoma County to Santa Rosa’s city centre.

  • Can I find cheaper flights to Santa Rosa if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Santa Rosa on Cheapflights that require 1 or 2 stops for potential cost savings.

  • Does Santa Rosa Sonoma County have rental cars?

    Yes. Those touching down at Santa Rosa Sonoma County can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Santa Rosa Sonoma County?

    Yes. Santa Rosa Sonoma County has hotels nearby for those requiring accommodations. Healdsburg, Ca Amazing Resort-Like Estate Healdsburg -- 4bd / 3ba is the closest property to Santa Rosa Sonoma County (0.0 km away from Santa Rosa Sonoma County).

See more FAQs

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Certainly. Search results for flights to Santa Rosa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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