$119+ Cheap flights from Illinois 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois 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.Cheap flight deals from Illinois to Santa Rosa
Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Santa Rosa (STS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.
Round-trip from | $343 (American Airlines) |
|---|---|
One-way from | $119 (Mytrip) |
Find flight deals from Illinois to Santa Rosa
Cheapest flights from Illinois to Santa RosaExplore the most affordable flight options available from Illinois to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
Explore the most affordable flight options available from Illinois to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
This Mytrip deal was found by Cheapflights users on 1/20. 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.
This American Airlines deal was found by Cheapflights users on 1/21. 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.
This American Airlines deal was found by Cheapflights users on 1/21. 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.
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Find flights from Illinois to Santa Rosa within your budget
Customize your flight search to find flights from Illinois 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 January 21, 2025.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoSanta Rosa
ORD - STS
ORDSTS
Chicago O'Hare Intl
Wed 4/2
8:35 am-8:36 am
2 stops26h 01m
Santa Rosa Sonoma County
Sun 4/6
12:38 pm-6:36 am
1 stop15h 58m
ChicagoSanta Rosa
ORD - STS
ORDSTS
Chicago O'Hare Intl
Thu 3/6
6:00 am-12:14 pm
1 stop8h 14m
Santa Rosa Sonoma County
Wed 4/9
4:17 pm-12:41 am
1 stop6h 24m
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Thu 2/20
7:15 am-12:14 pm
1 stop6h 59m
Santa Rosa Sonoma County
Sun 3/2
12:54 pm-11:39 pm
1 stop8h 45m
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Sat 2/22
3:21 pm-9:26 am
1 stop20h 05m
Santa Rosa Sonoma County
Wed 3/5
6:18 pm-11:59 pm
2 stops27h 41m
ChicagoSanta Rosa
ORD - STS
ORDSTS
Chicago O'Hare Intl
Sat 2/15
7:45 am-9:26 am
1 stop27h 41m
Santa Rosa Sonoma County
Wed 2/19
6:18 pm-1:04 pm
1 stop16h 46m
ChicagoSanta Rosa
ORD - STS
ORDSTS
Chicago O'Hare Intl
Sun 3/2
10:45 pm-1:12 pm
1 stop16h 27m
ChicagoSanta Rosa
ORD - STS
ORDSTS
Chicago O'Hare Intl
Tue 3/4
7:00 pm-8:43 pm
2 stops27h 43m
ChicagoSanta Rosa
ORD - STS
ORDSTS
Chicago O'Hare Intl
Fri 3/7
6:00 am-12:14 pm
1 stop8h 14m
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Thu 4/24
6:30 am-7:04 pm
1 stop14h 34m
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Fri 3/28
7:25 am-12:19 pm
1 stop6h 54m
Best time to book a flight from Illinois to Santa Rosa
Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Illinois with our price prediction graph.
Travel insights for flights from Illinois to Santa Rosa
Get recent, data-driven insights about flights from Illinois to Santa Rosa including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Illinois to Santa Rosa?
Currently, February is the cheapest month in which you can book a flight from Illinois to Santa Rosa (average of $202). Flying from Illinois 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 IL to STS?
Find hourly flight availability from Illinois 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 January 21, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Santa Rosa as you normally would.
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 January 21, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines and American Airlines from Illinois to Santa Rosa to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Crew
Food
Boarding
Overall
Comfort
Reviews
The attention and efficiency of the staff and the good handling of the pilot
Entertainment
Crew
Food
Boarding
Overall
Comfort
Reviews
The attention and efficiency of the staff and the good handling of the pilot
Entertainment
Crew
Food
Boarding
Overall
Comfort
Reviews
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 Illinois 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 Illinois?
Book flights to Illinois if you plan to visit one of these locationsBrowse 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 Illinois to Santa Rosa
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Illinois to Santa Rosa
Discover the top 2 airlines that operate flights from Illinois 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 January 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$363 | Average$607 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$365 | Average$514 | FlexibilityNo cancel fee | On-time75% |