$84+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STS
Apr 30 — May 71
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 July or May, booked 54 days in advance, depart on a Wednesday or Monday 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 March 31, 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 March 31, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2110:13 pm
LAX
- STS
Nonstop1h 46m
Alaska Airlines
Sat 4/256:51 pm
STS
- LAX
Nonstop1h 42m
Alaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$147
This Alaska Airlines deal was found by Cheapflights users on 3/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:09 am
LAX
- STS
Nonstop1h 52m
Alaska Airlines
Tue 5/127:10 pm
STS
- LAX
Nonstop1h 42m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$152
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/1810:13 pm
LAX
- STS
Nonstop1h 46m
Alaska Airlines
Tue 4/217:05 am
STS
- LAX
Nonstop1h 56m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:20 am
LAX
- STS
1 stop6h 05m
Southwest
Sat 4/251:00 pm
STS
- LAX
1 stop8h 30m
Southwest
Deal found 3/30![Southwest logo]()
$167
This SmartFares deal was found by Cheapflights users on 3/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:22 pm
LAX
- STS
Nonstop1h 37m
Alaska Airlines
Wed 5/205:21 pm
STS
- LAX
Nonstop1h 40m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$171
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:40 pm
LAX
- STS
2 stops8h 30m
Southwest
Wed 4/224:35 pm
STS
- LAX
1 stop5h 55m
Southwest
Deal found 3/30![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 3/26. 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 4/255:20 am
LAX
- STS
1 stop6h 05m
Southwest
Tue 4/284:35 pm
STS
- LAX
1 stop4h 35m
Southwest
Deal found 3/26![Southwest logo]()
$173
This Southwest deal was found by Cheapflights users on 3/26. 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 5/53:35 pm
LAX
- STS
2 stops6h 35m
Southwest
Tue 5/124:35 pm
STS
- LAX
1 stop4h 35m
Southwest
Deal found 3/26![Southwest logo]()
$174
This Southwest deal was found by Cheapflights users on 3/26. 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 4/255:20 am
LAX
- STS
1 stop6h 05m
Southwest
Sat 5/21:00 pm
STS
- LAX
1 stop8h 30m
Southwest
Deal found 3/26![Southwest logo]()
$177
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 March 31, 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 March 31, 2026.
This Southwest deal was found by Cheapflights users on 3/29. 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.
Tue 4/2810:55 am
LAX
- STS
1 stop5h 00m
Southwest
Tue 5/54:35 pm
STS
- LAX
1 stop4h 35m
Southwest
Deal found 3/29![Southwest logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 3/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:09 am
LAX
- STS
Nonstop1h 52m
Alaska Airlines
Wed 4/227:10 pm
STS
- LAX
Nonstop1h 42m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$192
This Southwest deal was found by Cheapflights users on 3/26. 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 4/2511:50 am
LAX
- STS
2 stops8h 40m
Southwest
Tue 4/286:00 am
STS
- LAX
2 stops7h 00m
Southwest
Deal found 3/26![Southwest logo]()
$183
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 4/288:09 am
LAX
- STS
Nonstop1h 52m
Alaska Airlines
Wed 4/297:10 pm
STS
- LAX
Nonstop1h 42m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$197
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:20 pm
LAX
- STS
2 stops7h 50m
Southwest
Thu 4/306:00 am
STS
- LAX
2 stops8h 05m
Southwest
Deal found 3/31![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 6/205:56 pm
LAX
- STS
Nonstop1h 43m
Alaska Airlines
Sun 6/216:00 am
STS
- LAX
Nonstop1h 44m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 6/69:35 am
LAX
- STS
Nonstop1h 36m
Alaska Airlines
Sun 6/77:59 am
STS
- LAX
Nonstop1h 39m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$227
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:50 am
LAX
- STS
1 stop6h 10m
Southwest
Tue 4/284:35 pm
STS
- LAX
1 stop4h 35m
Southwest
Deal found 3/31![Southwest logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:27 pm
LAX
- STS
Nonstop1h 46m
Alaska Airlines
Tue 4/217:05 am
STS
- LAX
Nonstop1h 56m
Alaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$257
Last-minute flights from Irvine to Santa RosaDiscover last-minute flight deals from Irvine to Santa Rosa. Data last updated March 31, 2026 and is based on user searches.
Discover last-minute flight deals from Irvine to Santa Rosa. Data last updated March 31, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/1810:13 pm
LAX
- STS
Nonstop1h 46m
Alaska Airlines
Tue 4/217:05 am
STS
- LAX
Nonstop1h 56m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$157
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/185:27 pm
LAX
- STS
Nonstop1h 46m
Alaska Airlines
Fri 4/247:00 am
STS
- LAX
Nonstop1h 46m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$192
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2110:13 pm
LAX
- STS
Nonstop1h 46m
Alaska Airlines
Sat 4/256:51 pm
STS
- LAX
Nonstop1h 42m
Alaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$147
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:40 pm
LAX
- STS
2 stops8h 30m
Southwest
Wed 4/224:35 pm
STS
- LAX
1 stop5h 55m
Southwest
Deal found 3/30![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:20 am
LAX
- STS
1 stop6h 05m
Southwest
Sat 4/251:00 pm
STS
- LAX
1 stop8h 30m
Southwest
Deal found 3/30![Southwest logo]()
$167
This Southwest deal was found by Cheapflights users on 3/26. 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 4/255:20 am
LAX
- STS
1 stop6h 05m
Southwest
Tue 4/284:35 pm
STS
- LAX
1 stop4h 35m
Southwest
Deal found 3/26![Southwest logo]()
$173
This Southwest deal was found by Cheapflights users on 3/26. 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 4/255:20 am
LAX
- STS
1 stop6h 05m
Southwest
Sat 5/21:00 pm
STS
- LAX
1 stop8h 30m
Southwest
Deal found 3/26![Southwest logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:15 pm
LAX
- STS
Nonstop1h 46m
Alaska Airlines
Sun 4/267:00 am
STS
- LAX
Nonstop1h 46m
Alaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 3/27. 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 4/255:20 am
LAX
- STS
1 stop6h 05m
Southwest
Mon 4/274:40 pm
STS
- LAX
2 stops6h 40m
Southwest
Deal found 3/27![Southwest logo]()
$193
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 March 31, 2026.
Search for one-way flight options from Irvine to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated March 31, 2026.
This Southwest deal was found by Cheapflights users on 3/26. 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 4/2810:55 am
LAX
- STS
1 stop5h 00m
Southwest
Deal found 3/26![Southwest logo]()
$84
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/293:35 pm
LAX
- STS
2 stops6h 35m
Southwest
Deal found 3/30![Southwest logo]()
$89
This Southwest deal was found by Cheapflights users on 3/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:50 pm
LAX
- STS
2 stops6h 40m
Southwest
Deal found 3/28![Southwest logo]()
$94
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 4/1810:13 pm
LAX
- STS
Nonstop1h 46m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$99
This Southwest deal was found by Cheapflights users on 3/26. 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 6/310:55 am
LAX
- STS
1 stop5h 00m
Southwest
Deal found 3/26![Southwest logo]()
$124
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:40 pm
LAX
- STS
2 stops7h 00m
Southwest
Deal found 3/30![Southwest logo]()
$129
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:25 am
LAX
- STS
Nonstop1h 45m
Alaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$134
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:10 am
LAX
- STS
1 stop6h 16m
American Airlines
Deal found 3/28![American Airlines logo]()
$144
This Southwest deal was found by Cheapflights users on 3/26. 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 4/302:50 pm
LAX
- STS
2 stops7h 50m
Southwest
Deal found 3/26![Southwest logo]()
$149
This Southwest deal was found by Cheapflights users on 3/26. 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 4/99:50 am
LAX
- STS
1 stop6h 10m
Southwest
Deal found 3/26![Southwest logo]()
$154
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:40 am
LAX
- STS
1 stop7h 15m
Southwest
Deal found 3/30![Southwest logo]()
$159
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 March 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $147 (Alaska Airlines) |
One-way from | $84 (Southwest) |
Popular in | November |
Cheapest in | July |
Average price | $277 |
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 March 31, 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 - STS
LAXSTS
Los Angeles Los Angeles
Tue 4/28
10:55 am-3:55 pm
1 stop5h 00m
Santa Rosa Sonoma County
Tue 5/5
4:35 pm-9:10 pm
1 stop4h 35m
$177
Los AngelesSanta Rosa
LAX - STS
LAXSTS
Los Angeles Los Angeles
Sat 4/25
11:50 am-8:30 pm
2 stops8h 40m
Santa Rosa Sonoma County
Tue 4/28
6:00 am-1:00 pm
2 stops7h 00m
$183
Los AngelesSanta Rosa
LAX - STS
LAXSTS
Los Angeles Los Angeles
Wed 4/22
8:09 am-10:01 am
Nonstop1h 52m
Santa Rosa Sonoma County
Wed 4/22
7:10 pm-8:52 pm
Nonstop1h 42m
$192
Los AngelesSanta Rosa
LAX - STS
LAXSTS
Los Angeles Los Angeles
Tue 4/28
8:09 am-10:01 am
Nonstop1h 52m
Santa Rosa Sonoma County
Wed 4/29
7:10 pm-8:52 pm
Nonstop1h 42m
$197
Los AngelesSanta Rosa
LAX - STS
LAXSTS
Los Angeles Los Angeles
Tue 4/28
2:20 pm-10:10 pm
2 stops7h 50m
Santa Rosa Sonoma County
Thu 4/30
6:00 am-2:05 pm
2 stops8h 05m
$217
Los AngelesSanta Rosa
LAX - STS
LAXSTS
Los Angeles Los Angeles
Sat 6/20
5:56 pm-7:39 pm
Nonstop1h 43m
Santa Rosa Sonoma County
Sun 6/21
6:00 am-7:44 am
Nonstop1h 44m
$227
Quickest round-trip
Los AngelesSanta Rosa
LAX - STS
LAXSTS
Los Angeles Los Angeles
Sat 6/6
9:35 am-11:11 am
Nonstop1h 36m
Santa Rosa Sonoma County
Sun 6/7
7:59 am-9:38 am
Nonstop1h 39m
$227
Los AngelesSanta Rosa
LAX - STS
LAXSTS
Los Angeles Los Angeles
Tue 4/14
5:27 pm-7:13 pm
Nonstop1h 46m
Santa Rosa Sonoma County
Tue 4/21
7:05 am-9:01 am
Nonstop1h 56m
$257
Los AngelesSanta Rosa
LAX - STS
LAXSTS
Los Angeles Los Angeles
Mon 4/27
9:50 am-4:00 pm
1 stop6h 10m
Santa Rosa Sonoma County
Tue 4/28
4:35 pm-9:10 pm
1 stop4h 35m
$282
Cheapest one-way
Los AngelesSanta Rosa
LAX - STS
LAXSTS
Los Angeles Los Angeles
Wed 4/29
10:55 am-3:55 pm
1 stop5h 00m
$89
Showing 1-10 of 19 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
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 13, 2026.
The best time to book flights from Irvine to Santa Rosa is 54 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, May is the cheapest month in which you can book a flight from Irvine to Santa Rosa (average of $28). Flying from Irvine to Santa Rosa in March is currently the most expensive (average of $59). 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 March 31, 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.
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 28, 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. Friday 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 March 31, 2026.
The most flights from IR9 to STS are scheduled on a Friday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).
How much does it cost to fly round-trip from Irvine to Santa Rosa?
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 March 31, 2026.
Read through reviews of airlines operating flights from Irvine to Santa Rosa, such as Alaska Airlines,Hawaiian Airlines, andAvelo Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Avelo Airlines
Crew
8.5
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
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Top 6 airlines flying from Irvine to Santa Rosa
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$40 | Average$138 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$44 | Average$129 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$88 | Average$271 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$117 | Average$256 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$157 | Average$229 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$222 | Average$396 | FlexibilityNo cancel fee | On-time71% |