$60+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STS
Sep 16 — Sep 231
Round-trip
1 adult, Economy
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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 May, booked 54 days in advance, depart on a Tuesday or Saturday and return on a Thursday
Cheap flight deals from Irvine to Santa Rosa
Cheapest
Best
Last-minute
One-way
Cheapest flights from Irvine to Santa RosaExplore 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 August 17, 2026.
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 August 17, 2026.
This Southwest deal was found by Cheapflights users on 8/13. 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 8/318:55 am -
1 stop5h 25m
Wed 9/21:40 pm -
1 stop3h 50m
Deal found 8/13![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 10/96:44 pm -
Nonstop1h 36m
Sat 10/107:00 am -
Nonstop1h 37m
Deal found 8/14![Alaska Airlines logo]()
$227
This Booking.com deal was found by Cheapflights users on 8/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:55 pm -
Nonstop1h 36m
Sat 9/267:10 am -
Nonstop1h 34m
Deal found 8/12![Alaska Airlines logo]()
$231
This Southwest deal was found by Cheapflights users on 8/14. 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 9/55:20 am -
1 stop6h 45m
Tue 9/81:40 pm -
1 stop3h 50m
Deal found 8/14![Southwest logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/89:44 am -
Nonstop1h 37m
Wed 9/97:10 am -
Nonstop1h 34m
Deal found 8/14![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 8/15. 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 9/510:35 am -
2 stops9h 20m
Sat 9/126:00 am -
2 stops8h 35m
Deal found 8/15![Southwest logo]()
$238
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/266:30 am -
1 stop6h 08m
Sat 10/312:15 pm -
Nonstop1h 34m
Deal found 8/12![American Airlines logo]()
$239
This Southwest deal was found by Cheapflights users on 8/13. 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.
Tue 9/85:20 am -
1 stop6h 00m
Wed 9/161:40 pm -
1 stop5h 15m
Deal found 8/13![Southwest logo]()
$240
This Southwest deal was found by Cheapflights users on 8/13. 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 9/1210:35 am -
2 stops9h 20m
Mon 9/142:55 pm -
2 stops7h 30m
Deal found 8/13![Southwest logo]()
$242
This Booking.com deal was found by Cheapflights users on 8/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:30 am -
Nonstop1h 47m
Sun 10/187:00 am -
Nonstop1h 48m
Deal found 8/15![Alaska Airlines logo]()
$243
Best flights from Irvine to Santa RosaDiscover carefully curated flight deals from Irvine to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from Irvine to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
This Southwest deal was found by Cheapflights users on 8/15. 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 11/145:15 am -
1 stop6h 00m
Wed 11/182:35 pm -
1 stop3h 55m
Deal found 8/15![Southwest logo]()
$228
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 9/177:55 pm -
Nonstop1h 36m
Fri 9/184:36 pm -
Nonstop1h 41m
Deal found 8/16![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:00 am -
1 stop4h 43m
Sun 11/154:47 pm -
1 stop5h 07m
Deal found 8/12![Delta logo]()
$268
This Southwest deal was found by Cheapflights users on 8/12. 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 9/267:50 am -
1 stop4h 15m
Sun 9/277:05 am -
2 stops8h 30m
Deal found 8/12![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 9/83:15 pm -
2 stops6h 15m
Sat 9/126:00 am -
2 stops6h 05m
Deal found 8/12![Southwest logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 10/136:44 pm -
Nonstop1h 36m
Thu 10/1511:57 am -
Nonstop1h 43m
Deal found 8/14![Alaska Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am -
1 stop4h 41m
Fri 10/164:50 pm -
1 stop7h 05m
Deal found 8/14![Delta logo]()
$298
This Southwest deal was found by Cheapflights users on 8/16. 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.
Thu 9/33:10 pm -
2 stops7h 30m
Tue 9/81:40 pm -
1 stop3h 50m
Deal found 8/16![Southwest logo]()
$252
This Southwest deal was found by Cheapflights users on 8/16. 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 9/127:50 am -
1 stop4h 15m
Sun 9/1310:30 am -
1 stop8h 00m
Deal found 8/16![Southwest logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 9/169:44 am -
Nonstop1h 37m
Fri 9/186:53 pm -
1 stop14h 54m
Deal found 8/16![Alaska Airlines logo]()
$330
This Southwest deal was found by Cheapflights users on 8/16. 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 9/183:15 pm -
2 stops7h 25m
Sat 9/266:00 am -
2 stops8h 35m
Deal found 8/16![Southwest logo]()
$292
Last-minute flights from Irvine to Santa RosaDiscover last-minute flight deals from Irvine to Santa Rosa. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from Irvine to Santa Rosa. Data last updated August 17, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/13. 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 8/318:55 am -
1 stop5h 25m
Wed 9/21:40 pm -
1 stop3h 50m
Deal found 8/13![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 9/47:55 pm -
Nonstop1h 36m
Sun 9/67:10 am -
Nonstop1h 34m
Deal found 8/14![Alaska Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 8/14. 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 9/55:20 am -
1 stop6h 45m
Tue 9/81:40 pm -
1 stop3h 50m
Deal found 8/14![Southwest logo]()
$232
This Southwest deal was found by Cheapflights users on 8/15. 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 9/510:35 am -
2 stops9h 20m
Sat 9/126:00 am -
2 stops8h 35m
Deal found 8/15![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 8/14. 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.
Tue 9/85:20 am -
1 stop6h 00m
Thu 9/106:05 am -
2 stops7h 20m
Deal found 8/14![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 8/13. 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.
Tue 9/85:20 am -
1 stop6h 00m
Wed 9/161:40 pm -
1 stop5h 15m
Deal found 8/13![Southwest logo]()
$240
This Southwest deal was found by Cheapflights users on 8/13. 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 9/1210:35 am -
2 stops9h 20m
Mon 9/142:55 pm -
2 stops7h 30m
Deal found 8/13![Southwest logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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 9/139:44 am -
Nonstop1h 37m
Tue 9/1512:01 pm -
Nonstop1h 32m
Deal found 8/15![Alaska Airlines logo]()
$247
This Booking.com deal was found by Cheapflights users on 8/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:55 pm -
Nonstop1h 36m
Sat 9/267:10 am -
Nonstop1h 34m
Deal found 8/12![Alaska Airlines logo]()
$231
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/266:30 am -
1 stop6h 08m
Sat 10/312:15 pm -
Nonstop1h 34m
Deal found 8/12![American Airlines logo]()
$239
One-way flights from Irvine to Santa RosaSearch for one-way flight options from Irvine to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from Irvine to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This Southwest deal was found by Cheapflights users on 8/12. 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 9/118:55 am -
1 stop5h 25m
Deal found 8/12![Southwest logo]()
$60
This Southwest deal was found by Cheapflights users on 8/12. 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.
Wed 9/165:20 am -
1 stop6h 00m
Deal found 8/12![Southwest logo]()
$79
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Thu 11/267:05 pm -
1 stop4h 54m
Deal found 8/12![American Airlines logo]()
$80
This Southwest deal was found by Cheapflights users on 8/14. 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 9/143:10 pm -
2 stops7h 30m
Deal found 8/14![Southwest logo]()
$84
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Sun 9/66:30 am -
1 stop5h 58m
Deal found 8/15![American Airlines logo]()
$89
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:54 am -
1 stop6h 11m
Deal found 8/12![Delta logo]()
$99
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:00 am -
1 stop4h 41m
Deal found 8/12![Delta logo]()
$109
This Southwest deal was found by Cheapflights users on 8/12. 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 8/318:55 am -
1 stop5h 25m
Deal found 8/12![Southwest logo]()
$111
This Trip.com deal was found by Cheapflights users on 8/15. 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.
Tue 9/297:55 pm -
Nonstop1h 36m
Deal found 8/15![Alaska Airlines logo]()
$116
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/87:55 pm -
Nonstop1h 36m
Deal found 8/17![Alaska Airlines logo]()
$119
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 August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $222 (Southwest) |
One-way from | $60 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $307 |
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 August 17, 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
Cheapest round-trip
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Sat 11/14
5:15 am-11:15 am
1 stop6h 00m
Santa Rosa Sonoma County
Wed 11/18
2:35 pm-6:30 pm
1 stop3h 55m
$228
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Sat 9/26
7:50 am-12:05 pm
1 stop4h 15m
Santa Rosa Sonoma County
Sun 9/27
7:05 am-3:35 pm
2 stops8h 30m
$237
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Tue 9/8
3:15 pm-9:30 pm
2 stops6h 15m
Santa Rosa Sonoma County
Sat 9/12
6:00 am-12:05 pm
2 stops6h 05m
$242
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Thu 9/3
3:10 pm-10:40 pm
2 stops7h 30m
Santa Rosa Sonoma County
Tue 9/8
1:40 pm-5:30 pm
1 stop3h 50m
$252
Quickest round-trip
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Thu 9/17
7:55 pm-9:31 pm
Nonstop1h 36m
Santa Rosa Sonoma County
Fri 9/18
4:36 pm-6:17 pm
Nonstop1h 41m
$257
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Sat 9/12
7:50 am-12:05 pm
1 stop4h 15m
Santa Rosa Sonoma County
Sun 9/13
10:30 am-6:30 pm
1 stop8h 00m
$262
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Fri 11/13
6:00 am-10:43 am
1 stop4h 43m
Santa Rosa Sonoma County
Sun 11/15
4:47 pm-9:54 pm
1 stop5h 07m
$268
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Tue 10/13
6:44 pm-8:20 pm
Nonstop1h 36m
Santa Rosa Sonoma County
Thu 10/15
11:57 am-1:40 pm
Nonstop1h 43m
$287
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Fri 9/18
3:15 pm-10:40 pm
2 stops7h 25m
Santa Rosa Sonoma County
Sat 9/26
6:00 am-2:35 pm
2 stops8h 35m
$292
Los AngelesSanta Rosa
LAX Los Angeles - STS Santa Rosa Sonoma County
LAXSTS
Los Angeles
Fri 10/9
6:00 am-10:41 am
1 stop4h 41m
Santa Rosa Sonoma County
Fri 10/16
4:50 pm-11:55 pm
1 stop7h 05m
$298
Showing 1-10 of 23 resultsSorted by cheapest first
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.
LAX-STS
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
IR9-STS
LAX-STS
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 August 17, 2026.
It’s optimal to fly from Irvine to Santa Rosa in the evening. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight at noon.
How much does it cost to fly round-trip from Irvine to Santa Rosa?
Airfare is below average for this route at the moment.
Irvine to Santa Rosa flights typically cost between $227 and $457 in August.The cheapest round-trip price found within the last 5 days was $222 on Southwest (Aug 31-Sep 2).
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 August 15, 2026.
Travelers seeking maximum savings on their Irvine to Santa Rosa flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday afternoons 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 August 17, 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.
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
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.
Traveling to a place near Santa Rosa?
Book flights to Santa Rosa if you plan to visit one of these locationsFort Bragg
Ukiah
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Complete your trip to Santa Rosa by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Irvine to Santa Rosa, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Irvine and Santa Rosa flights
Browse other Irvine and Santa Rosa flight options. Last updated on August 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Santa Rosa
Explore flights to Santa Rosa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 17, 2026.
Irvine to Santa Rosa flights
Consider these flights traveling from Irvine to Santa Rosa.
Top 4 airlines flying from Irvine to Santa Rosa
Discover the top 4 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 August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$277 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$118 | Average$244 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$137 | Average$323 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$236 | Average$457 | FlexibilityNo cancel fee | On-time71% |