$120 Cheap Flights from Redmond (RDM) to Santa Rosa (STS)

View $120 flight on Tue, Dec 2, 2025Opens in a new window

Popular airlines from Redmond Municipal Airport (RDM) to Santa Rosa, CA (STS-Sonoma County)

Cheap Flights from Redmond to Santa Rosa (RDM-STS)

Prices were available within the past 7 days and start at $120 for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Dec 2 - Tue, Dec 9
RDM
Redmond
STS
Santa Rosa
$240 Roundtrip, found 5 days ago
$240
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Dec 2 from Redmond to Santa Rosa, returning Tue, Dec 9, priced at $240 found 5 days ago
Hawaiian Airlines
Wed, Dec 3 - Sat, Dec 13
RDM
Redmond
STS
Santa Rosa
$241 Roundtrip, found 5 days ago
$241
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Redmond to Santa Rosa, returning Sat, Dec 13, priced at $241 found 5 days ago
Alaska Airlines
Sat, Jan 10 - Sat, Jan 17
RDM
Redmond
STS
Santa Rosa
$243 Roundtrip, found 5 hours ago
$243
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Sat, Jan 10 from Redmond to Santa Rosa, returning Sat, Jan 17, priced at $243 found 5 hours ago
Alaska Airlines
Tue, Jan 13 - Wed, Jan 14
RDM
Redmond
STS
Santa Rosa
$250 Roundtrip, found 5 hours ago
$250
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Tue, Jan 13 from Redmond to Santa Rosa, returning Wed, Jan 14, priced at $250 found 5 hours ago
Hawaiian Airlines
Wed, Dec 3 - Sun, Dec 7
RDM
Redmond
STS
Santa Rosa
$251 Roundtrip, found 5 days ago
$251
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Redmond to Santa Rosa, returning Sun, Dec 7, priced at $251 found 5 days ago
Alaska Airlines
Thu, Nov 20 - Sat, Nov 22
RDM
Redmond
STS
Santa Rosa
$252 Roundtrip, found 4 days ago
$252
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Nov 20 from Redmond to Santa Rosa, returning Sat, Nov 22, priced at $252 found 4 days ago
Alaska Airlines
Sat, Dec 6 - Tue, Dec 9
RDM
Redmond
STS
Santa Rosa
$258 Roundtrip, found 1 day ago
$258
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Redmond to Santa Rosa, returning Tue, Dec 9, priced at $258 found 1 day ago
Hawaiian Airlines
Mon, Dec 1 - Mon, Dec 8
RDM
Redmond
STS
Santa Rosa
$261 Roundtrip, found 5 days ago
$261
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Mon, Dec 1 from Redmond to Santa Rosa, returning Mon, Dec 8, priced at $261 found 5 days ago
Alaska Airlines
Thu, Jan 8 - Sat, Jan 17
RDM
Redmond
STS
Santa Rosa
$262 Roundtrip, found 5 hours ago
$262
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Thu, Jan 8 from Redmond to Santa Rosa, returning Sat, Jan 17, priced at $262 found 5 hours ago
American Airlines
Mon, Nov 10 - Mon, Nov 17
RDM
Redmond
STS
Santa Rosa
$1,038 Roundtrip, found 23 hours ago
$1,038
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Mon, Nov 10 from Redmond to Santa Rosa, returning Mon, Nov 17, priced at $1,038 found 23 hours ago

Find the cheapest month to fly from Redmond (RDM) to Santa Rosa (STS)

June is typically the cheapest month to fly

From $101 - $726 per traveler.

Alternative airports near Santa Rosa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sonoma County STS. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $390
STS
Sonoma County
CheapestClosest
Average driving time to city center10 min
Flights from $390

Frequently asked questions

How much does a flight from Robert's Field Airport (RDM) to Sonoma County Airport (STS) cost?
Secure a cheap one-way flight from $120 or cheap return flight from $240 from Robert's Field Airport (RDM) to Sonoma County Airport (STS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Robert's Field Airport (RDM) to Sonoma County Airport (STS)?
The cheapest month to fly from RDM to STS is December, when there's less demand. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Robert's Field Airport (RDM) to Sonoma County Airport (STS)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest RDM to STS flight.
How many flights per day from Robert's Field Airport (RDM) to Sonoma County Airport (STS)?
There are no daily direct flights available from Robert's Field Airport (RDM) to Sonoma County Airport (STS). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from RDM to STS?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from RDM to STS?
With 95% of flights typically landing on schedule, Avelo Airlines has the best on-time performance for direct flights from Robert's Field Airport (RDM) to Sonoma County Airport (STS). To monitor your flight status and receive notifications if anything changes, use the Expedia App.
What is the best time to fly from Robert's Field Airport (RDM) to Sonoma County Airport (STS)?
Select a flight from Robert's Field Airport (RDM) to Sonoma County Airport (STS) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**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 Robert's Field Airport (RDM)?
Browse your flight options from Robert's Field Airport (RDM) to San Francisco Intl. Airport (SFO). This is the only Santa Rosa airport you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Robert's Field Airport (RDM) to Sonoma County Airport (STS) last-minute?
Last-minute bookings from RDM to STS are typically more expensive. To lock in the lowest rates, start searching for flights well ahead of time. That said, if you're flexible with your travel plans, it's possible to score a cheap fare right before you leave.
Is it cheaper to book a RDM to STS flight and hotel package?
You'll typically save money by securing a RDM 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 simple to manage everything in one convenient place. After selecting your preferred accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Robert's Field Airport (RDM) to Sonoma County Airport (STS)?
Typically, you can cancel or reschedule your RDM to STS flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like further details, go to our Customer Service portal.

Travel information

Origin airport
Robert's Field
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$240
Distance
405 mi

Book with confidence

Redmond to Santa Rosa Flights

The cheapest times to fly from Redmond 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 Redmond to Santa Rosa are during the month of December. You can find some of the cheapest flights from Redmond to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Redmond to Santa Rosa

Sunday is one of the best days to book for cheap flights from Redmond 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 Redmond 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 Redmond to Santa Rosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $120 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 Redmond 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 Redmond 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.

 

Redmond to Santa Rosa Flights

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*Available to One Key members.