Cheap flights from Chicago to San Francisco from $185
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to San Francisco departing on 5/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago to San Francisco
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Hawaiian Airlines flights from Chicago to Santa Rosa
Our best Hawaiian Airlines deals on Chicago to Santa Rosa flight tickets
Alaska Airlines flights from Chicago to Santa Rosa
Our best Alaska Airlines deals on Chicago to Santa Rosa flight tickets
See travel insights to San Francisco from
How to get the cheapest flight ticket from Chicago to Santa Rosa
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Santa Rosa?
Our data shows that Tuesday is the least expensive day to fly to Santa Rosa. Tickets to fly out on this day can be as low as $517. On the other hand, Monday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $703.
What is the cheapest time of day to depart on your flight to Santa Rosa?
Our data shows that the cheapest Chicago to Santa Rosa flights are usually those with departure times in the evening. Our users have found flights to Santa Rosa in the evening for as low as $453. Flights in the morning are often more expensive with an average ticket price of $577.
What is the cheapest airline that flies from Chicago to Santa Rosa Sonoma County?
Alaska Airlines and American Airlines are the most popular carriers operating from Chicago to Santa Rosa Sonoma County
What airlines fly to Santa Rosa?
United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Santa Rosa from Chicago according to our data. United Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Santa Rosa. Keep in mind that there are 8 different airlines that fly to Santa Rosa on a routine basis, so you have a few additional options to choose from.
When to book flights from Chicago to Santa Rosa
Cheap Chicago to Santa Rosa (CHI to STS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Santa Rosa
How far is Chicago to Santa Rosa Sonoma County by plane?
Santa Rosa Sonoma County is 1853.6 mi away from Chicago. A reasonable flight in good conditions will take 7h 04m.
When did momondo last update prices for flights from Chicago to Santa Rosa Sonoma County Airport?
Prices for flights from Chicago to Santa Rosa Sonoma County Airport were last updated today.
How many operators does momondo search for flights from Chicago to Santa Rosa Sonoma County Airport?
As of April 2025, there is 1 operator available to choose from for flights from Chicago to Santa Rosa Sonoma County Airport.
How old do you have to be to fly from Chicago to Santa Rosa Sonoma County Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Santa Rosa Sonoma County Airport.
What documentation or ID do you need to fly to Santa Rosa Sonoma County Airport?
The travel and health documents required for your trip to Santa Rosa Sonoma County Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Santa Rosa Sonoma County Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Chicago to Santa Rosa?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago to Santa Rosa is American Airlines (74% of total bookings). The next most popular airline is Alaska Airlines (26%).
Best airlines flying from Chicago to Santa Rosa
Compare and see reviews for airlines that fly from Chicago to Santa Rosa with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $363 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Chicago to Santa Rosa?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Santa Rosa. momondo saves you time and could save you money on your trip.
Can I find flights from Chicago to Santa Rosa with flexible booking policies on momondo?
momondo does allow users to show only those flights to Santa Rosa from Chicago which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Chicago to Santa Rosa?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Santa Rosa from Chicago.
I’m not ready to book a flight from Chicago to Santa Rosa right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Chicago to Santa Rosa now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Santa Rosa and let you know when they change.