$137 Cheap Flights from Redmond (RDM) to Santa Rosa (STS)

View $137 flight on Sat, Dec 13, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $137 for one-way flights and $262 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Aug 27 - Sat, Aug 30
RDM
Redmond
STS
Santa Rosa
$262 Roundtrip, found 1 hour ago
$262
Roundtrip
found 1 hour ago
Select Hawaiian Airlines flight, departing Wed, Aug 27 from Redmond to Santa Rosa, returning Sat, Aug 30, priced at $262 found 1 hour ago
Alaska Airlines
Sat, Nov 1 - Sat, Nov 8
RDM
Redmond
STS
Santa Rosa
$263 Roundtrip, just found
$263
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Nov 1 from Redmond to Santa Rosa, returning Sat, Nov 8, priced at $263 just found
Hawaiian Airlines
Tue, Aug 19 - Sat, Aug 23
RDM
Redmond
STS
Santa Rosa
$268 Roundtrip, found 4 days ago
$268
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Aug 19 from Redmond to Santa Rosa, returning Sat, Aug 23, priced at $268 found 4 days ago
Alaska Airlines
Sat, Dec 13 - Mon, Dec 15
RDM
Redmond
STS
Santa Rosa
$273 Roundtrip, just found
$273
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Dec 13 from Redmond to Santa Rosa, returning Mon, Dec 15, priced at $273 just found
Hawaiian Airlines
Mon, Oct 27 - Tue, Nov 4
RDM
Redmond
STS
Santa Rosa
$278 Roundtrip, found 1 day ago
$278
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Oct 27 from Redmond to Santa Rosa, returning Tue, Nov 4, priced at $278 found 1 day ago
Alaska Airlines
Sat, Nov 1 - Sat, Nov 8
RDM
Redmond
STS
Santa Rosa
$278 Roundtrip, just found
$278
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Nov 1 from Redmond to Santa Rosa, returning Sat, Nov 8, priced at $278 just found
Alaska Airlines
Sat, Nov 1 - Sat, Nov 8
RDM
Redmond
STS
Santa Rosa
$282 Roundtrip, just found
$282
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Nov 1 from Redmond to Santa Rosa, returning Sat, Nov 8, priced at $282 just found
Alaska Airlines
Sat, Nov 1 - Sat, Nov 8
RDM
Redmond
STS
Santa Rosa
$283 Roundtrip, just found
$283
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Nov 1 from Redmond to Santa Rosa, returning Sat, Nov 8, priced at $283 just found
Hawaiian Airlines
Mon, Oct 27 - Sun, Nov 2
RDM
Redmond
STS
Santa Rosa
$288 Roundtrip, found 1 day ago
$288
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Oct 27 from Redmond to Santa Rosa, returning Sun, Nov 2, priced at $288 found 1 day ago
American Airlines
Fri, Aug 15 - Tue, Aug 19
RDM
Redmond
STS
Santa Rosa
$680 Roundtrip, found 22 hours ago
$680
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Fri, Aug 15 from Redmond to Santa Rosa, returning Tue, Aug 19, priced at $680 found 22 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.

Graph displaying average flight prices per month

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 $411
STS
Sonoma County
CheapestClosest
Average driving time to city center10 min
Flights from $411
Flights from Redmond (RDM) to Santa Rosa (STS)
Origin airport
Robert's Field
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$259
Distance
405 mi
Average flight time
1 hour 29 mins

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 August. 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 $137 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.

 

Frequently asked questions

How much does a flight from Robert's Field Airport (RDM) to Sonoma County Airport (STS) cost?
Pick up cheap return fares starting at $88 from Robert's Field Airport (RDM) to Sonoma County Airport (STS). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Avelo Airlines flight leaving RDM on August 14 2025 and touching down at STS. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from RDM to STS?
The cheapest flights from RDM to STS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from RDM to STS?
At the moment, the cheapest carrier operating one-way flights from RDM to STS is Avelo Airlines. You can jet off on this route from $44. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from RDM on August 28 2025. Prices were last updated on July 23 2025 and have not changed since.
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.

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*Available to One Key members.