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Santa Rosa

$99+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STS
Aug 2 — Aug 91
Sun 8/2
Sun 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Santa Rosa Sonoma County are usually found in January or December, booked 54 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap 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, 2026.

This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/142:09 pm
LAX
-
STS
Nonstop1h 46m
Alaska Airlines
Sat 8/156:00 am
STS
-
LAX
Nonstop1h 44m
Alaska Airlines
Deal found 7/2$227
This CheapOair deal was found by Cheapflights users on 7/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/12:09 pm
LAX
-
STS
Nonstop1h 46m
Alaska Airlines
Wed 8/56:00 am
STS
-
LAX
Nonstop1h 44m
Alaska Airlines
Deal found 7/2$228
This CheapOair deal was found by Cheapflights users on 7/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:55 pm
LAX
-
STS
Nonstop1h 36m
Alaska Airlines
Sun 9/137:10 am
STS
-
LAX
Nonstop1h 34m
Alaska Airlines
Deal found 7/2$230
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:35 am
LAX
-
STS
2 stops9h 15m
Southwest
Wed 8/266:00 am
STS
-
LAX
2 stops8h 35m
Southwest
Deal found 7/1$232
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:09 pm
LAX
-
STS
Nonstop1h 46m
Alaska Airlines
Sat 8/811:35 am
STS
-
LAX
Nonstop1h 40m
Alaska Airlines
Deal found 7/1$234
This CheapOair deal was found by Cheapflights users on 6/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:59 pm
LAX
-
STS
Nonstop1h 36m
Alaska Airlines
Sun 9/207:10 am
STS
-
LAX
Nonstop1h 34m
Alaska Airlines
Deal found 6/28$236
This Southwest deal was found by Cheapflights users on 6/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:10 pm
LAX
-
STS
2 stops7h 25m
Southwest
Wed 8/261:40 pm
STS
-
LAX
1 stop5h 10m
Southwest
Deal found 6/29$237
This CheapOair deal was found by Cheapflights users on 6/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:55 pm
LAX
-
STS
Nonstop1h 36m
Alaska Airlines
Sun 8/237:10 am
STS
-
LAX
Nonstop1h 34m
Alaska Airlines
Deal found 6/29$238
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:55 pm
LAX
-
STS
Nonstop1h 36m
Alaska Airlines
Thu 9/34:36 pm
STS
-
LAX
Nonstop1h 41m
Alaska Airlines
Deal found 7/1$242
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:10 pm
LAX
-
STS
2 stops7h 25m
Southwest
Sun 9/1310:30 am
STS
-
LAX
1 stop8h 00m
Southwest
Deal found 7/1$243
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:55 pm
LAX
-
STS
Nonstop1h 36m
Alaska Airlines
Tue 8/257:10 am
STS
-
LAX
Nonstop1h 34m
Alaska Airlines
Deal found 7/1$247
This CheapOair deal was found by Cheapflights users on 6/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:59 pm
LAX
-
STS
Nonstop1h 36m
Alaska Airlines
Mon 9/214:36 pm
STS
-
LAX
Nonstop1h 41m
Alaska Airlines
Deal found 6/28$248

Find 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, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$227
(Alaska Airlines)

One-way from

$99
(Southwest)

Popular in

June

Cheapest in

January

Average price

$282
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. 5% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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, 2026.
Use the filters below to find and compare flights from Irvine to Santa Rosa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sat 8/1

2:09 pm-3:55 pm

Nonstop1h 46m

Santa Rosa Sonoma County

Sat 8/8

6:00 am-7:44 am

Nonstop1h 44m

$227

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Thu 7/23

9:00 am-10:45 am

Nonstop1h 45m

Santa Rosa Sonoma County

Mon 7/27

6:00 am-7:44 am

Nonstop1h 44m

$227
Quickest round-trip

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Fri 8/28

7:55 pm-9:31 pm

Nonstop1h 36m

Santa Rosa Sonoma County

Mon 8/31

12:01 pm-1:33 pm

Nonstop1h 32m

$242

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Mon 9/7

7:55 pm-9:31 pm

Nonstop1h 36m

Santa Rosa Sonoma County

Thu 9/10

4:36 pm-6:17 pm

Nonstop1h 41m

$257

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Fri 7/24

5:00 pm-6:43 pm

Nonstop1h 43m

Santa Rosa Sonoma County

Wed 7/29

6:00 am-7:44 am

Nonstop1h 44m

$257

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Wed 7/22

5:35 am-11:05 am

1 stop5h 30m

Santa Rosa Sonoma County

Mon 7/27

5:10 pm-11:45 pm

2 stops6h 35m

$282

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Wed 7/15

5:35 am-11:05 am

1 stop5h 30m

Santa Rosa Sonoma County

Sat 7/18

12:15 pm-6:25 pm

1 stop6h 10m

$307

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Thu 8/6

3:10 pm-10:35 pm

2 stops7h 25m

Santa Rosa Sonoma County

Mon 8/10

6:05 am-11:50 am

2 stops5h 45m

$308

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sat 7/18

12:40 pm-9:55 pm

2 stops9h 15m

Santa Rosa Sonoma County

Mon 7/20

3:55 pm-10:10 pm

1 stop6h 15m

$312

Los AngelesSanta Rosa

LAX - STS

LAXSTS

Los Angeles

Sat 8/22

7:59 pm-9:35 pm

Nonstop1h 36m

Santa Rosa Sonoma County

Mon 8/24

7:03 am-9:59 pm

1 stop14h 56m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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

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, 2026.

It’s optimal to fly from Irvine to Santa Rosa in the evening. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight at noon.

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, 2026.

The most flights from IR9 to STS are scheduled on a Friday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Irvine to Santa Rosa?

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 27, 2026.

Travelers seeking maximum savings on their Irvine to Santa Rosa flight should consider departing on Sunday afternoons 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.

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, 2026.
Read through reviews of airlines operating flights from Irvine to Santa Rosa, such as Alaska Airlines,Hawaiian Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,615 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
7.9
Good
12,615 reviews
Alaska Airlines
7.9
Good
12,615 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,825 reviews
Alaska Airlines
7.9
Good
12,615 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.1
Good
11,766 reviews
Alaska Airlines
7.9
Good
12,615 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 9 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 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Airlines like Alaska Airlines fly from Irvine to Santa Rosa in about 1h 46m. The time it takes to get you to your destination is usually consistent. The distance from Irvine to Santa Rosa is about 399 mi. All flights are typically nonstop.

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

    $78 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on Alaska Airlines and American Airlines, with prices starting from $78 and $138, 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 (99%), SkyWest Airlines (92%) or Iberia (92%) 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 $359 for a flight from Irvine to Santa Rosa. The cheapest flight overall is $128 while the most popular route, (Los Angeles - Santa Rosa Sonoma County) is currently priced at $177.

  • 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.

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 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, 2026.
AirlineCheapestAverageFlexibilityOn-time
Avelo AirlinesCheapest$76Average$165FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$98Average$285FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$107Average$416FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$117Average$270FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$157Average$237FlexibilityNo cancel feeOn-time63%

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