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Santa Rosa

$59+ Cheap flights from Riverside, CA to Santa Rosa (STS)

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STS
Oct 28 — Nov 41
Tue 10/28
Tue 11/4
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Santa Rosa Sonoma County are usually found in January or December, booked 69 days in advance, depart on a Wednesday or Thursday and return on a Thursday

Cheap flight deals from Riverside to Santa Rosa

Keep the following information in mind while searching for Riverside to Santa Rosa flight deals. Data was last updated September 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$152
(Cheapflightsfares)

One-way from

$59
(Cheapflightsfares)

Popular in

September

Cheapest in

January

Average price

$284
Provider with most accurate pricing for Los Angeles-San Francisco flight deals.
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From Riverside to Santa Rosa Sonoma County
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One-way flight from Riverside to Santa Rosa Sonoma County
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Highest demand for flights based on searches. 5% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Riverside to Santa Rosa

Cheapest flights from Riverside to Santa Rosa
Explore the most affordable flight options available from Riverside to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:43 pmLAX - STS
Nonstop1h 36mAlaska Airlines
Thu 12/48:03 pmSTS - LAX
Nonstop1h 42mAlaska Airlines
Deal found 9/28$151
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:58 pmLAX - STS
Nonstop1h 35mAlaska Airlines
Wed 10/297:45 amSTS - LAX
Nonstop1h 50mAlaska Airlines
Deal found 9/28$152
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2810:15 pmLAX - STS
Nonstop1h 41mHawaiian Airlines
Wed 12/35:59 pmSTS - LAX
Nonstop1h 32mHawaiian Airlines
Deal found 9/27$154
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:28 amLAX - STS
Nonstop1h 51mAlaska Airlines
Wed 12/105:59 pmSTS - LAX
Nonstop1h 32mAlaska Airlines
Deal found 9/28$157
This Trip.com deal was found by Cheapflights users on 9/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2211:29 amLAX - STS
1 stop6h 42mAlaska Airlines
Tue 10/2810:50 amSTS - LAX
1 stop4h 29mAlaska Airlines
Deal found 9/27$166
This American Airlines deal was found by Cheapflights users on 9/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:10 amLAX - STS
1 stop6h 17mAmerican Airlines
Sun 12/74:26 pmSTS - LAX
1 stop5h 24mAmerican Airlines
Deal found 9/28$168
This Cheapflightsfares deal was found by Cheapflights users on 9/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/179:05 pmLAX - STS
Nonstop1h 42mAlaska Airlines
Thu 11/208:07 pmSTS - LAX
Nonstop1h 40mAlaska Airlines
Deal found 9/27$172
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:43 pmLAX - STS
Nonstop1h 36mAlaska Airlines
Wed 12/105:59 pmSTS - LAX
Nonstop1h 32mAlaska Airlines
Deal found 9/28$177
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/314:18 pmLAX - STS
Nonstop1h 36mAlaska Airlines
Thu 11/68:07 pmSTS - LAX
Nonstop1h 40mAlaska Airlines
Deal found 9/28$181
This American Airlines deal was found by Cheapflights users on 9/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:05 amLAX - STS
1 stop6h 16mAmerican Airlines
Sat 11/112:53 pmSTS - LAX
1 stop6h 01mAmerican Airlines
Deal found 9/27$184
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1011:44 amLAX - STS
1 stop6h 19mAlaska Airlines
Wed 12/313:53 pmSTS - LAX
Nonstop1h 32mAlaska Airlines
Deal found 9/28$187
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/209:58 pmLAX - STS
Nonstop1h 35mAlaska Airlines
Thu 10/2312:41 pmSTS - LAX
Nonstop1h 41mAlaska Airlines
Deal found 9/28$191

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Santa Rosa 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 September 28, 2025.
Use the filters below to find and compare flights from Riverside to Santa Rosa that are best for you.

Fly from

Riverside

Fly to

Santa Rosa

Route

Depart

Return

Price

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sat 10/18

3:24 pm-4:58 pm

Nonstop1h 34m

Santa Rosa Sonoma County

Mon 10/20

5:31 pm-7:14 pm

Nonstop1h 43m

$157

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sat 11/1

4:18 pm-5:54 pm

Nonstop1h 36m

Santa Rosa Sonoma County

Mon 11/3

8:07 pm-9:47 pm

Nonstop1h 40m

$157

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Wed 11/12

4:01 pm-9:46 pm

1 stop5h 45m

Santa Rosa Sonoma County

Mon 11/17

8:07 pm-9:47 pm

Nonstop1h 40m

$187

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Wed 11/12

8:18 am-10:10 am

Nonstop1h 52m

Santa Rosa Sonoma County

Sat 11/15

10:50 am-3:19 pm

1 stop4h 29m

$187

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Fri 10/31

4:18 pm-5:54 pm

Nonstop1h 36m

Santa Rosa Sonoma County

Mon 11/3

8:07 pm-9:47 pm

Nonstop1h 40m

$187

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Thu 11/13

4:18 pm-5:54 pm

Nonstop1h 36m

Santa Rosa Sonoma County

Thu 11/13

8:07 pm-9:47 pm

Nonstop1h 40m

$191

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Tue 11/11

8:18 am-10:10 am

Nonstop1h 52m

Santa Rosa Sonoma County

Tue 11/11

6:34 pm-8:03 pm

Nonstop1h 29m

$197

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Mon 11/10

9:05 pm-10:47 pm

Nonstop1h 42m

Santa Rosa Sonoma County

Wed 11/12

6:34 pm-8:03 pm

Nonstop1h 29m

$197

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Tue 11/11

8:18 am-10:10 am

Nonstop1h 52m

Santa Rosa Sonoma County

Sun 11/16

7:45 am-9:35 am

Nonstop1h 50m

$207

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sat 10/18

3:24 pm-4:58 pm

Nonstop1h 34m

Santa Rosa Sonoma County

Sun 10/19

7:00 am-8:42 am

Nonstop1h 42m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/25

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Riverside to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Riverside 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 Riverside to Santa Rosa

How far ahead should I book a flight from Riverside to Santa Rosa?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Santa Rosa. Price data was last updated on September 26, 2025.

The best time to book flights from Riverside to Santa Rosa is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Riverside to Santa Rosa?

Currently, February is the cheapest month in which you can book a flight from Riverside to Santa Rosa (average of $202). Flying from Riverside to Santa Rosa in June is currently the most expensive (average of $395). 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.

What is the cheapest time of day to fly from R1V to STS?

Find hourly flight availability from Riverside to Santa Rosa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 28, 2025.

When flying from Riverside to Santa Rosa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Riverside to Santa Rosa?

Use this chart to determine the cheapest time to fly round-trip from Riverside to Santa Rosa. Price data was last updated on September 28, 2025.

Travelers seeking maximum savings on their Riverside to Santa Rosa flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Riverside to Santa Rosa

Explore weekly flight availability from Riverside to Santa Rosa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 28, 2025.

The most flights from R1V to STS are scheduled on a Monday (19 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).

Reviews of airlines servicing Santa Rosa

Get insights into the airlines that provide service to Santa Rosa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santa Rosa. Reviews last updated September 28, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Hawaiian Airlines, and Avelo Airlines from Riverside to Santa Rosa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,755 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Avelo Airlines
7.5
Good
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,158 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Riverside to Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    If you book a flight to Santa Rosa from Riverside, you will be flying to Sonoma County, which is the city’s only airport. Santa Rosa Sonoma County (STS) is located 7.2 mi from the center of Santa Rosa. There are 13 flights from Riverside to Sonoma County per day from 5 different airlines.

  • How popular is this Riverside to Santa Rosa flight route?

    Within the past month, 2 users have taken a look at flights from Riverside to Santa Rosa Sonoma County.

  • How long is the flight from Riverside to Santa Rosa?

    Airlines like Alaska Airlines fly from Riverside to Santa Rosa in about 1h 34m. The time it takes to get you to your destination is usually consistent. Riverside and Santa Rosa are separated by a distance of 399 mi. All flights are typically nonstop.

  • What are the most reliable airlines from Riverside to Santa Rosa?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Riverside to Santa Rosa on time: Horizon Air (100%), Japan Airlines (98%), Qatar Airways (96%).

  • What are the cheapest flights from Riverside to Santa Rosa?

    On average you can expect to pay $421 for a flight from Riverside to Santa Rosa. The cheapest flight overall is $98 while the most popular route, (Los Angeles - Santa Rosa Sonoma County) is currently priced at $92.

  • Can I find deals for flights from Riverside to Santa Rosa that include hotel bookings?

    Yes. In addition to deals on Riverside to Santa Rosa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Riverside to Santa Rosa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Riverside to Santa Rosa.

  • Can I find deals for business class flights from Riverside to Santa Rosa?

    Yes. Cheapflights offers flight deals from Riverside to Santa Rosa 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 Riverside to Santa Rosa?

    Currently, February is the cheapest month in which you can book a flight from Riverside to Santa Rosa (average of $202). Flying from Riverside to Santa Rosa in June is currently the most expensive (average of $395). 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

Traveling to a place near Santa Rosa?

Book flights to Santa Rosa if you plan to visit one of these locations
Fort Bragg
Ukiah

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Top 5 airlines flying from Riverside to Santa Rosa

Discover the top 5 airlines that operate flights from Riverside to Santa Rosa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$89FlexibilityNo cancel feeOn-time62%
Avelo AirlinesCheapest$49Average$117FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$136Average$300FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$137Average$294FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$202Average$403FlexibilityNo cancel feeOn-time71%

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