$492 Cheap Flights from Hong Kong (HKG) to Santa Rosa (STS)

View $492 flight on Sat, Feb 28, 2026Opens in a new window

Popular airlines from Hong Kong International Airport (HKG) to Santa Rosa, CA (STS-Sonoma County)

Cheap Flights from Hong Kong to Santa Rosa (HKG-STS)

Prices were available within the past 7 days and start at $492 for one-way flights and $914 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$914 Roundtrip, found 3 days ago
$914
Roundtrip
found 3 days ago
Select China Airlines flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $914 found 3 days ago
China Airlines
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$957 Roundtrip, found 3 days ago
$957
Roundtrip
found 3 days ago
Select China Airlines flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $957 found 3 days ago
EVA Airways
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$981 Roundtrip, found 3 days ago
$981
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $981 found 3 days ago
EVA Airways
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$988 Roundtrip, found 3 days ago
$988
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $988 found 3 days ago
EVA Airways
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$1,033 Roundtrip, found 3 days ago
$1,033
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $1,033 found 3 days ago
EVA Airways
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$1,054 Roundtrip, found 3 days ago
$1,054
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $1,054 found 3 days ago
China Airlines
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$1,055 Roundtrip, found 3 days ago
$1,055
Roundtrip
found 3 days ago
Select China Airlines flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $1,055 found 3 days ago
Cathay Pacific
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$1,213 Roundtrip, found 3 days ago
$1,213
Roundtrip
found 3 days ago
Select Cathay Pacific flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $1,213 found 3 days ago
Japan Airlines
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$1,945 Roundtrip, found 3 days ago
$1,945
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $1,945 found 3 days ago
Qatar Airways
Sat, Oct 18 - Tue, Oct 21
HKG
Hong Kong SAR
STS
Santa Rosa
$2,029 Roundtrip, found 3 days ago
$2,029
Roundtrip
found 3 days ago
Select Qatar Airways flight, departing Sat, Oct 18 from Hong Kong SAR to Santa Rosa, returning Tue, Oct 21, priced at $2,029 found 3 days ago
Flights from Hong Kong (HKG) to Santa Rosa (STS)
Origin airport
Hong Kong Intl.
Destination airport
Sonoma County
Roundtrip price
$913
Distance
6856 mi

Hong Kong to Santa Rosa Flights

The cheapest times to fly from Hong Kong to Santa Rosa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Hong Kong to Santa Rosa are during the month of October. You can find some of the cheapest flights from Hong Kong to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Hong Kong to Santa Rosa

Sunday is one of the best days to book for cheap flights from Hong Kong to Santa Rosa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Hong Kong to Santa Rosa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Hong Kong to Santa Rosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $492 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Hong Kong to Santa Rosa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Hong Kong to Santa Rosa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Hong Kong Intl. Airport (HKG) to Sonoma County Airport (STS) cost?
Snag a cheap one-way flight from $492 or cheap return flight from $914 from Hong Kong Intl. Airport (HKG) to Sonoma County Airport (STS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Hong Kong Intl. Airport (HKG) to Sonoma County Airport (STS)?
October is the least expensive month to fly from HKG to STS. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from Hong Kong Intl. Airport (HKG) to Sonoma County Airport (STS)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest HKG to STS flight.
How many flights per day from Hong Kong Intl. Airport (HKG) to Sonoma County Airport (STS)?
Nonstop flights from Hong Kong Intl. Airport (HKG) to Sonoma County Airport (STS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from HKG to STS?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Hong Kong Intl. Airport (HKG) to Sonoma County Airport (STS)?
To arrive at Sonoma County Airport (STS) without delays, pick a flight that leaves from Hong Kong Intl. Airport (HKG) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Santa Rosa from Hong Kong Intl. Airport (HKG)?
If you're on a direct flight from Hong Kong Intl. Airport (HKG) to Santa Rosa, San Francisco Intl. Airport (SFO) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Hong Kong Intl. Airport (HKG) to Sonoma County Airport (STS) last-minute?
Waiting until just before your departure to book a ticket from HKG to STS often results in higher prices. While you may come across some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule for the best chance of getting a bargain.
Is it cheaper to book a HKG to STS flight and hotel package?
You'll typically save money by booking a HKG to STS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your preferred flights and accommodations, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Hong Kong Intl. Airport (HKG) to Sonoma County Airport (STS)?
Usually, it's possible to reschedule or cancel your HKG to STS flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.