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Cheap flights from Chicago to Sonoma

Compare Chicago to Sonoma flight deals

Find the cheapest month or even day of the year to fly to Sonoma

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Flight deals from Chicago to Sonoma

Looking for a cheap last-minute deal or the best round-trip flight from Chicago to Sonoma? Find the lowest prices on one-way and round-trip tickets right here.
Santa Rosa.$309 per passenger.Departing Wed, May 13, returning Sun, May 17.Round-trip flight with Spirit Airlines and Alaska Airlines.Outbound indirect flight with Spirit Airlines, departing from Chicago O'Hare International on Wed, May 13, arriving in Santa Rosa.Inbound indirect flight with Alaska Airlines, departing from Santa Rosa on Sun, May 17, arriving in Chicago O'Hare International.Price includes taxes and charges.From $309, select.
Santa Rosa.$321 per passenger.Departing Thu, Apr 9, returning Tue, Apr 14.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Chicago O'Hare International on Thu, Apr 9, arriving in Santa Rosa.Inbound indirect flight with Alaska Airlines, departing from Santa Rosa on Tue, Apr 14, arriving in Chicago O'Hare International.Price includes taxes and charges.From $321, select.
Santa Rosa.$364 per passenger.Departing Wed, Aug 19, returning Sun, Aug 23.Round-trip flight with Spirit Airlines and Alaska Airlines.Outbound indirect flight with Spirit Airlines, departing from Chicago O'Hare International on Wed, Aug 19, arriving in Santa Rosa.Inbound indirect flight with Alaska Airlines, departing from Santa Rosa on Sun, Aug 23, arriving in Chicago O'Hare International.Price includes taxes and charges.From $364, select.
Santa Rosa.$405 per passenger.Departing Sat, Jul 11, returning Sat, Jul 18.Round-trip flight with Spirit Airlines and Alaska Airlines.Outbound indirect flight with Spirit Airlines, departing from Chicago O'Hare International on Sat, Jul 11, arriving in Santa Rosa.Inbound indirect flight with Alaska Airlines, departing from Santa Rosa on Sat, Jul 18, arriving in Chicago O'Hare International.Price includes taxes and charges.From $405, select.
Santa Rosa.$437 per passenger.Departing Mon, Jun 15, returning Mon, Jun 22.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Chicago O'Hare International on Mon, Jun 15, arriving in Santa Rosa.Inbound indirect flight with Alaska Airlines, departing from Santa Rosa on Mon, Jun 22, arriving in Chicago O'Hare International.Price includes taxes and charges.From $437, select.
Santa Rosa.$586 per passenger.Departing Tue, Mar 17, returning Sat, Mar 21.Round-trip flight with Frontier Airlines and Alaska Airlines.Outbound indirect flight with Frontier Airlines, departing from Chicago O'Hare International on Tue, Mar 17, arriving in Santa Rosa.Inbound indirect flight with Alaska Airlines, departing from Santa Rosa on Sat, Mar 21, arriving in Chicago O'Hare International.Price includes taxes and charges.From $586, select.

Chicago to Sonoma: Flight information

The things to know before you go.
Fly intoSanta Rosa Airport
Distance to Sonoma39.1 km
Cheapest flight$309
Cheapest month to flyMay

Find the cheapest month to fly from Chicago to Sonoma

We always keep an eye on fares, so you can find the best flight deal in seconds. It looks like Chicago to Sonoma flights are currently cheapest in May. We’ve based this on flights into Napa Airport.
Mar
from $586
Apr
from $321
May
from $309
Jun
from $437
Jul
from $405
Aug
from $364
Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Finding cheap flights from Chicago to Sonoma: Frequently asked questions

There are three (3) airports near Sonoma: Santa Rosa Airport, Concord Airport, and Oakland Metropolitan Oak Airport.
The best price we found for a round-trip flight from Chicago to Sonoma is $309. 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 to Sonoma. But we found flights with one or more stops from $309.
We've checked every Chicago to Sonoma fare we could find, and the cheapest upcoming date to fly seems to be on Wednesday, May 13, 2026. Overall, the cheapest month to fly from Chicago to Sonoma is usually May.
If you're flying from Chicago, the cheapest airport near Sonoma is Santa Rosa – which is 39.1 km away from the center of Sonoma. We've found flights to this airport from $309.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Sonoma on Wednesday, May 13, 2026.
No airlines currently offer direct flights between Chicago and Sonoma. 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 Sonoma 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 Sonoma is around 40 days in advance, so don’t leave your flight to the last minute.
Santa Rosa Airport is 39.1km from Sonoma, Concord Airport is 48.7km from Sonoma, and Oakland Metropolitan Oak Airport is 66.7km from Sonoma.
Santa Rosa Airport is closest to Sonoma, at around 39.1 km away.
The cheapest airline that flies to Sonoma is Spirit Airlines.