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Santa Rosa

$73+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STS
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Santa Rosa Sonoma County are usually found in September or January, booked 59 days in advance, depart on a Wednesday or Thursday 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 July 3, 2025.

Round-trip from

$137
(Alaska Airlines)

One-way from

$73
(Trip.com)

Popular in

November

Cheapest in

September

Average price

$222
From Irvine to Santa Rosa Sonoma County
Search Deals
One-way flight from Irvine to Santa Rosa Sonoma County
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Highest demand for flights based on searches. 2% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 8/1410:06 pmLAX - STS
Nonstop1h 38mAlaska Airlines
Sat 8/163:05 pmSTS - LAX
Nonstop1h 30mAlaska Airlines
Deal found 7/3$137
This Hawaiian Airlines deal was found by Cheapflights users on 6/30. 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.
Thu 9/48:03 amLAX - STS
1 stop6h 40mHawaiian Airlines
Tue 9/93:07 pmSTS - LAX
Nonstop1h 38mHawaiian Airlines
Deal found 6/30$147
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 9/39:55 amLAX - STS
1 stop5h 53mAmerican Airlines
Tue 9/91:00 pmSTS - LAX
1 stop5h 39mAmerican Airlines
Deal found 7/1$159
This WAYA deal was found by Cheapflights users on 7/1. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2410:06 pmLAX - STS
Nonstop1h 38mMultiple Airlines
Mon 7/282:22 pmSTS - LAX
1 stop5h 54mMultiple Airlines
Deal found 7/1$210

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 July 3, 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

Thu 8/14

10:06 pm-11:44 pm

Nonstop1h 38m

Santa Rosa Sonoma County

Sat 8/16

3:05 pm-4:35 pm

Nonstop1h 30m

$137

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Thu 9/4

8:03 am-2:43 pm

1 stop6h 40m

Santa Rosa Sonoma County

Tue 9/9

3:07 pm-4:45 pm

Nonstop1h 38m

$147

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Wed 9/3

9:55 am-3:48 pm

1 stop5h 53m

Santa Rosa Sonoma County

Tue 9/9

1:00 pm-6:39 pm

1 stop5h 39m

$159

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Thu 7/24

10:06 pm-11:44 pm

Nonstop1h 38m

Santa Rosa Sonoma County

Mon 7/28

2:22 pm-8:16 pm

1 stop5h 54m

$210

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Wed 7/23

8:32 am-2:25 pm

1 stop5h 53m

$73

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Mon 7/28

10:15 am-3:36 pm

1 stop5h 21m

$99

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sun 9/21

10:17 pm-11:59 pm

Nonstop1h 42m

$104

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 June 27, 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 July 3, 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 June 29, 2025.

Travelers seeking maximum savings on their Irvine to Santa Rosa flight should consider departing on Wednesday afternoons 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 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 July 3, 2025.

The most flights from IR9 to STS are scheduled on a Monday (20 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (12 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 July 3, 2025.
Read through reviews of airlines operating flights from Irvine to Santa Rosa, such as Alaska Airlines, Hawaiian Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 18 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 2 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?

    $73 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 $99 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 Qatar Airways (87%), Horizon Air (86%) or Hawaiian Airlines (85%) 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 $245 for a flight from Irvine to Santa Rosa. The cheapest flight overall is $83 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
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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$89FlexibilityNo cancel feeOn-time62%
Avelo AirlinesCheapest$48Average$123FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$88Average$279FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$131Average$264FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$202Average$314FlexibilityNo cancel feeOn-time71%

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