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Santa Rosa

$78+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STS
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
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 Monday and return on a Thursday

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 November 20, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/17. 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.
Sat 12/133:43 pmLAX - STS
Nonstop1h 36mAlaska Airlines
Wed 12/177:00 amSTS - LAX
Nonstop1h 52mAlaska Airlines
Deal found 11/17$117
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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.
Sat 12/1310:09 pmLAX - STS
Nonstop1h 35mAlaska Airlines
Thu 12/187:00 amSTS - LAX
1 stop5h 40mAlaska Airlines
Deal found 11/19$127
This Cheapflightsfares deal was found by Cheapflights users on 11/18. 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 12/1210:09 pmLAX - STS
Nonstop1h 43mAlaska Airlines
Thu 12/186:37 pmSTS - LAX
Nonstop1h 44mAlaska Airlines
Deal found 11/18$136
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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.
Fri 12/1910:32 pmLAX - STS
Nonstop1h 46mAlaska Airlines
Sat 1/107:00 amSTS - LAX
Nonstop1h 56mAlaska Airlines
Deal found 11/18$137
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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.
Sat 12/133:43 pmLAX - STS
Nonstop1h 36mAlaska Airlines
Sat 12/137:55 pmSTS - LAX
Nonstop1h 32mAlaska Airlines
Deal found 11/19$151
This Cheapflightsfares deal was found by Cheapflights users on 11/20. 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 12/1510:09 pmLAX - STS
Nonstop1h 43mAlaska Airlines
Wed 12/177:00 amSTS - LAX
Nonstop1h 52mAlaska Airlines
Deal found 11/20$156
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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 12/158:28 amLAX - STS
Nonstop1h 51mAlaska Airlines
Mon 12/158:03 pmSTS - LAX
Nonstop1h 42mAlaska Airlines
Deal found 11/19$157
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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.
Sat 12/208:35 amLAX - STS
Nonstop1h 56mAlaska Airlines
Wed 12/243:53 pmSTS - LAX
Nonstop1h 32mAlaska Airlines
Deal found 11/19$167
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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 12/148:28 amLAX - STS
Nonstop1h 51mAlaska Airlines
Thu 12/187:00 amSTS - LAX
Nonstop1h 37mAlaska Airlines
Deal found 11/19$177
This Hawaiian Airlines deal was found by Cheapflights users on 11/17. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1310:09 pmLAX - STS
Nonstop1h 35mHawaiian Airlines
Wed 12/1710:59 amSTS - LAX
1 stop8h 37mHawaiian Airlines
Deal found 11/17$180
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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 12/1110:09 pmLAX - STS
Nonstop1h 43mAlaska Airlines
Mon 12/1510:59 amSTS - LAX
1 stop24h 24mAlaska Airlines
Deal found 11/18$184
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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 12/1711:44 amLAX - STS
1 stop6h 19mAlaska Airlines
Tue 12/306:37 pmSTS - LAX
Nonstop1h 44mAlaska Airlines
Deal found 11/19$187

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 November 20, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$117
(Alaska Airlines)

One-way from

$78
(Cheapflightsfares)

Popular in

November

Cheapest in

January

Average price

$337
Provider with most accurate pricing for Los Angeles-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-San Francisco flights.
Search Deals
From Riverside to Santa Rosa Sonoma County
Search Deals
One-way flight from Riverside to Santa Rosa Sonoma County
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 20, 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

Wed 1/28

8:35 am-10:25 am

Nonstop1h 50m

Santa Rosa Sonoma County

Tue 2/3

7:00 am-8:56 am

Nonstop1h 56m

$117

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sat 12/13

3:43 pm-5:19 pm

Nonstop1h 36m

Santa Rosa Sonoma County

Wed 12/17

7:00 am-8:52 am

Nonstop1h 52m

$117

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Thu 12/11

8:28 am-10:19 am

Nonstop1h 51m

Santa Rosa Sonoma County

Sun 12/14

7:00 am-8:52 am

Nonstop1h 52m

$137

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Thu 2/26

10:10 pm-11:57 pm

Nonstop1h 47m

Santa Rosa Sonoma County

Tue 3/3

7:00 am-8:47 am

Nonstop1h 47m

$137

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Mon 12/22

10:32 pm-12:18 am

Nonstop1h 46m

Santa Rosa Sonoma County

Mon 12/29

3:53 pm-5:25 pm

Nonstop1h 32m

$137

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Fri 1/30

8:06 am-9:56 am

Nonstop1h 50m

Santa Rosa Sonoma County

Wed 2/4

7:00 am-8:56 am

Nonstop1h 56m

$137

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Thu 3/5

8:19 am-10:11 am

Nonstop1h 52m

Santa Rosa Sonoma County

Sun 3/8

7:48 pm-9:28 pm

Nonstop1h 40m

$157

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sun 12/21

10:32 pm-12:18 am

Nonstop1h 46m

Santa Rosa Sonoma County

Mon 12/29

3:53 pm-5:25 pm

Nonstop1h 32m

$157

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Fri 12/12

10:09 pm-11:52 pm

Nonstop1h 43m

Santa Rosa Sonoma County

Sun 12/14

7:00 am-8:52 am

Nonstop1h 52m

$157

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Wed 1/28

8:35 am-10:25 am

Nonstop1h 50m

Santa Rosa Sonoma County

Thu 1/29

7:56 pm-9:34 pm

Nonstop1h 38m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 22 results
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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 November 14, 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, December is the cheapest month in which you can book a flight from Riverside to Santa Rosa (average of $17). Flying from Riverside to Santa Rosa in July is currently the most expensive (average of $57). 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 November 20, 2025.

When flying from Riverside to Santa Rosa, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 27% versus a flight at noon.

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 November 2, 2025.

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

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 November 20, 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
11,321 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

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
11,321 reviews
Alaska Airlines
8.0
Very good
11,321 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

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
2,811 reviews
Alaska Airlines
8.0
Very good
11,321 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

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
7.6
Good
Alaska Airlines
8.0
Very good
11,321 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

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
11,045 reviews
Alaska Airlines
8.0
Very good
11,321 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

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
3,104 reviews
Alaska Airlines
8.0
Very good
11,321 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

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 3 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 50m. 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: Singapore Airlines (93%), Qantas Airways (86%), Finnair (86%).

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

    On average you can expect to pay $406 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 $117.

  • 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, December is the cheapest month in which you can book a flight from Riverside to Santa Rosa (average of $17). Flying from Riverside to Santa Rosa in July is currently the most expensive (average of $57). 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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$90FlexibilityNo cancel feeOn-time62%
Avelo AirlinesCheapest$48Average$115FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$137Average$294FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$137Average$291FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$202Average$392FlexibilityNo cancel feeOn-time71%

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