HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Santa Rosa

$69+ Cheap flights from Irvine, 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STS
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Irvine to Santa Rosa with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Irvine to Santa Rosa Sonoma County are usually found in January or December, booked 59 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Irvine to Santa Rosa

Keep the following information in mind while searching for Irvine to Santa Rosa flight deals. Data was last updated April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$162
(Hawaiian Airlines)

One-way from

$69
(Alaska Airlines)

Popular in

November

Cheapest in

January

Average price

$226
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 Irvine to Santa Rosa Sonoma County
Search Deals
One-way flight from Irvine to Santa Rosa Sonoma County
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Irvine to Santa Rosa

Cheapest flights from Irvine to Santa Rosa
Explore the most affordable flight options available from Irvine to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 4/1. 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 5/310:29 amLAX - STS
1 stop6h 15mHawaiian Airlines
Tue 5/67:28 pmSTS - LAX
Nonstop1h 33mHawaiian Airlines
Deal found 4/1$162
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2410:23 amLAX - STS
1 stop26h 59mMultiple Airlines
Sun 4/2712:38 pmSTS - LAX
1 stop23h 31mMultiple Airlines
Deal found 3/31$165
This Alaska Airlines deal was found by Cheapflights users on 3/31. 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 6/1810:06 pmLAX - STS
Nonstop1h 38mAlaska Airlines
Wed 6/257:00 amSTS - LAX
Nonstop1h 36mAlaska Airlines
Deal found 3/31$167
This American Airlines deal was found by Cheapflights users on 4/1. 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 5/38:40 amLAX - STS
1 stop7h 06mAmerican Airlines
Tue 5/612:46 pmSTS - LAX
1 stop5h 43mAmerican Airlines
Deal found 4/1$173

Cheapflights Fare Finder

Customize your flight search to find flights from Irvine 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 April 1, 2025.
Use the filters below to find and compare flights from Irvine to Santa Rosa that are best for you.

Fly from

Irvine

Fly to

Santa Rosa

Route

Depart

Return

Price

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Tue 6/17

10:06 pm-11:44 pm

Nonstop1h 38m

Santa Rosa Sonoma County

Sat 6/21

10:00 am-2:02 pm

1 stop4h 02m

$162

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Thu 4/24

10:23 am-1:22 pm

1 stop26h 59m

Santa Rosa Sonoma County

Sun 4/27

12:38 pm-12:09 pm

1 stop23h 31m

$165

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sun 4/20

6:00 am-12:17 pm

1 stop6h 17m

Santa Rosa Sonoma County

Tue 4/22

12:57 pm-6:28 pm

1 stop5h 31m

$173

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Fri 6/20

10:06 pm-11:44 pm

Nonstop1h 38m

Santa Rosa Sonoma County

Mon 6/23

7:00 am-8:36 am

Nonstop1h 36m

$187

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Tue 5/6

7:50 pm-9:33 pm

Nonstop1h 43m

$69

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Wed 5/7

10:31 am-3:41 pm

1 stop5h 10m

$80

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Fri 4/18

9:00 am-1:22 pm

1 stop4h 22m

$98

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Fri 5/30

9:56 pm-11:30 pm

Nonstop1h 34m

$104

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Best time to book a flight from Irvine to Santa Rosa

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

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

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Santa Rosa. Price data was last updated on March 28, 2025.

The best time to book flights from Irvine to Santa Rosa is 59 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 Irvine to Santa Rosa?

Currently, February is the cheapest month in which you can book a flight from Irvine to Santa Rosa (average of $202). Flying from Irvine 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 IR9 to STS?

Find hourly flight availability from Irvine 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 April 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to Santa Rosa as you normally would.

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

Use this chart to determine the cheapest time to fly round-trip from Irvine to Santa Rosa. Price data was last updated on March 30, 2025.

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

Weekly flight availability from Irvine to Santa Rosa

Explore weekly flight availability from Irvine 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 April 1, 2025.

The most flights from IR9 to STS are scheduled on a Sunday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Santa Rosa by month

Plan your trip to Santa Rosa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Santa Rosa ranges from 0.0 - 7.1 inches per month. January is typically the wettest month, when rainfall can reach 7.1 in. July is typically the driest time to visit Santa Rosa when rainfall is around 0.0 in.

Temperature in Santa Rosa by month

Plan your trip to Santa Rosa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Santa Rosa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

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 April 1, 2025.
Read through reviews of airlines operating flights from Irvine to Santa Rosa, such as Alaska Airlines, Hawaiian Airlines and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Hawaiian Airlines
7.9
Good
2,342 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

Find useful and relevant information for your journey from Irvine 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 Irvine?

    Located just 7.2 mi from the city center, Santa Rosa Sonoma County is the airport most travelers will use when flying to Santa Rosa from Irvine. Booking flights from Irvine to Sonoma County (STS) should be relatively easy as there are 15 daily inbound flights from Irvine from 5 different airlines.

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

    The Irvine to Santa Rosa Sonoma County flight path was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Irvine to Santa Rosa one-way?

    $69 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on American Airlines and Hawaiian Airlines, with prices starting from $80 and $104, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Irvine to Santa Rosa consider choosing American Airlines (78%), Qatar Airways (75%) or Singapore Airlines (74%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay $220 for a flight from Irvine to Santa Rosa. The cheapest flight overall is $58 while the most popular route, (Los Angeles - Santa Rosa Sonoma County) is currently priced at $137.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Irvine to Santa Rosa (average of $202). Flying from Irvine 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 Irvine?

Book flights to Irvine if you plan to visit one of these locations
Fort Bragg
Ukiah
Mendocino

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Irvine to Santa Rosa

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Las Vegas flights
San Jose to Los Angeles flights
Los Angeles to Las Vegas flights
San Francisco to Los Angeles flights
Oakland to Los Angeles flights
Santa Ana to Las Vegas flights
Los Angeles to San Francisco flights
San Jose to Las Vegas flights
Oakland to Las Vegas flights
San Francisco to Ontario flights
Burbank to Las Vegas flights
Los Angeles to Oakland flights
Los Angeles to San Jose flights
Oakland to Santa Ana flights
San Francisco to Santa Ana flights
Santa Ana to Oakland flights
Ontario to San Francisco flights
Los Angeles to Sacramento flights
San Francisco to San Diego flights
Santa Ana to San Francisco flights
Ontario to Las Vegas flights
San Francisco to Burbank flights
Burbank to Oakland flights
Oakland to Burbank flights
Oakland to San Diego flights
San Jose to Ontario flights
Sacramento to Los Angeles flights
San Jose to San Diego flights
San Francisco to Palm Springs flights
San Jose to Santa Ana flights
Burbank to San Francisco flights
Las Vegas to Los Angeles flights
San Diego to San Francisco flights
San Diego to Las Vegas flights
Sacramento to San Diego flights
Sacramento to Las Vegas flights
Burbank to Sacramento flights
Santa Ana to Sacramento flights
Los Angeles to Reno flights
San Jose to Burbank flights
San Diego to San Jose flights
San Diego to Oakland flights
Sacramento to Ontario flights
Santa Ana to San Jose flights
Ontario to Sacramento flights
Ontario to San Jose flights
Sacramento to Burbank flights
Las Vegas to Burbank flights
Santa Rosa to San Diego flights
Santa Rosa to Las Vegas flights

Top 5 airlines flying from Irvine to Santa Rosa

Discover the top 5 airlines that operate flights from Irvine 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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$29Average$63FlexibilityNo cancel feeOn-time62%
Avelo AirlinesCheapest$48Average$128FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$88Average$292FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$130Average$270FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$177Average$304FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.