Cheap Flights from Chicago O'Hare International to Santa Rosa

Compare Chicago O'Hare International to Santa Rosa flight deals

Find the cheapest month or even day of the year to fly to Santa Rosa

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Flight deals from Chicago O'Hare International to Santa Rosa

Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International Airport to Santa Rosa Airport? If you want to travel next month, return fares start from R 5,728. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago O'Hare International to Santa Rosa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to Santa Rosa flights are currently cheapest in August.

Chicago O'Hare International to Santa Rosa: Alternative routes

Compare routes from Chicago O'Hare International to Santa Rosa below. You may find an airport to fly into that's cheaper, faster, or easier than Santa Rosa.

Chicago to Santa Rosa: Flight information

The things to know before you go.
Cheapest flight foundR 2,611
Cheapest month to flyAugust

Finding cheap flights from Chicago O'Hare International to Santa Rosa: Frequently asked questions

The best price we found for a return flight from Chicago O'Hare International to Santa Rosa is R 5,671. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago O'Hare International to Santa Rosa. But we found flights with one or more stops from R 5,671.
As of July 2026, there are no flights flying from Chicago O'Hare International to Santa Rosa.
The cheapest month to fly from Chicago O'Hare International to Santa Rosa is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to Santa Rosa Airport on Tuesday, 6 October 2026.
No airlines currently offer direct flights between Chicago O'Hare International Airport and Santa Rosa Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Santa Rosa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Santa Rosa is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Delta offers the cheapest flight tickets to Santa Rosa.

Flying from Chicago O'Hare International Airport (ORD) to Santa Rosa Airport (STS): what you need to know

  • Leave plenty of time to catch your ORD to STS flight. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.

  • During popular months like July, it's a good idea to get to the airport well in advance. Arrive two hours before domestic departures and four hours ahead of an international flight when you fly during a peak period in general.

  • Break up your flight or explore another city along the way with a stopover. Just uncheck 'Direct flights only' to see your options when searching for tickets from Chicago O'Hare International Airport to Santa Rosa Airport. Many passengers pass through Dallas Fort Worth International Airport when flying between ORD and STS.

How to find the cheapest flights from Chicago O'Hare International Airport (ORD) to Santa Rosa Airport (STS)

  • At the moment, R 2,611 is the lowest price we've found for a one-way Chicago O'Hare International Airport to Santa Rosa Airport flight. The best price for a return ticket is R 5,671. Remember that fares may change due to availability when booking.

  • Don't wait until the last minute. You're more likely to get cheap tickets from ORD to STS if you book ahead. Airlines often offer some terrific early bird discounts.

  • Getting cheap flights from Chicago O'Hare International Airport to Santa Rosa Airport is easier if you're flexible with your travel plans. Use the 'Whole month' search function to see the lowest fares throughout the month and land a great deal.

  • Stay on top of deals for cheap flights from ORD to STS by setting up a Price Alert. You'll receive an email or push notification on the app when a new discounted fare appears.

  • Secure the right flight for you with the help of the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Chicago O'Hare International Airport to Santa Rosa Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and number of stops.

Handy information about Chicago O'Hare International Airport (ORD)

  • ORD is located at 10000 West O'Hare.

  • 70% of flights that depart Chicago O'Hare International Airport touch down at their destination on time.

  • Central Chicago to Chicago O'Hare International Airport is around 27 kilometres. Depending on traffic, it'll take you about 30 minutes to get there if you're driving, catching a taxi or ride-sharing.

  • You can expect a journey time of roughly 45 minutes when using public transport.

  • Get your travels off to a leisurely start by staying near ORD. Whether you're catching an early flight from Chicago O'Hare International Airport to Santa Rosa Airport or want to avoid feeling rushed, these hotels are ideal:

Arriving at Santa Rosa Airport (STS)

When to fly to Santa Rosa Airport (STS)

  • It's time to choose your trip dates for your flight from Chicago O'Hare International Airport to Santa Rosa Airport. August is the most popular month to visit Santa Rosa. If you like a more low-key vibe, go in March.

  • Book your flight from Chicago O'Hare International Airport to Santa Rosa Airport for August if you want to visit Santa Rosa during its warmest month. You can expect temperatures of between 11ºC (52ºF) and 29ºC (84ºF).

  • If you like travelling in cooler conditions, look for a cheap ticket from ORD to STS in February. Average temperatures are between 2ºC (36ºF) and 19ºC (66ºF) then.

Explore more of the United States

  • Santa Rosa is always a good idea, but there are so many other parts of the United States just waiting to be explored. About 145 kilometres south-east of Santa Rosa, a visit to San Jose will fill your itinerary to the brim. Check out popular attractions like Winchester Mystery House, The Tech Interactive and Santa Clara Valley.

  • If there's time to check out another well-known destination in the United States, consider San Francisco, roughly 80 kilometres south of Santa Rosa. Golden Gate Bridge, Painted Ladies - Alamo Square and Alcatraz Island are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.