Cheap Flights from Santa Rosa (STS) to Chicago (ORD)

Popular airlines from Santa Rosa, CA (STS-Sonoma County) to Chicago O'Hare International Airport (ORD)

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Find the cheapest month to fly from Santa Rosa (STS) to Chicago (ORD)

September is typically the cheapest month to fly

From £210 - £559 per traveller.

Graph displaying average flight prices per month

Flight from Santa Rosa to Chicago route information
Origin airport
Sonoma County
Destination airport
O'Hare Intl.
Distance
2949 km

Compare flights from Santa Rosa to Chicago easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Santa Rosa to Chicago. Operating between them flights per day, airlines cover the route. And fly direct, getting you to O'Hare Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Sonoma County to O'Hare Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Sonoma County (STS) to O'Hare Intl. (ORD)

The easiest way to view the best deals on flights from Santa Rosa to Chicago today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Sonoma County to O'Hare Intl. start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Santa Rosa and Chicago
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Santa Rosa to Chicago flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Sonoma County to O'Hare Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Sonoma County Airport to O'Hare Airport?
Start packing your suitcase, because round-trip journeys between STS and O'Hare Airport start from . That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book now to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from STS to O'Hare Intl. Airport (ORD)?
Every air carrier has its own set of terms and conditions. If you decide to cancel your escape, visit our Customer Service Portal.
How do I find cheap flights from Sonoma County Airport (STS) to O'Hare Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sonoma County Airport (STS) to O'Hare Intl. Airport (ORD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sonoma County Airport to ORD?
The flight distance from Sonoma County Airport to O'Hare Intl. Airport (ORD) is 3,000 kilometres. Bring along a drink, some snacks and something to read. Keep yourself entertained and the hours will zip by.
Which airlines fly direct from STS to ORD?
Flying directly between Sonoma County Airport (STS) and ORD isn't possible at the moment. However, you'll still be able to book a flight to Chicago with at least one stop.
Are STS to ORD flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes pick up a bargain, with some super cheap airfares from STS to O'Hare Intl. Airport (ORD) surfacing a few weeks before the departure date. If you'd rather plan ahead, Expedia compares and updates all the best flight deals regularly — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines release prices that far in advance.

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