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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from $104

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 O'Hare Intl Airport to San Francisco departing on 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
3:52 pm - 11:27 pm
ORD
-
STS
9h 35m
1 stop
Alaska Airlines Logo
8:00 pm - 1:13 pm
STS
-
ORD
15h 13m
1 stop
$215Alaska Airlines
Fri, May 1 - Mon, May 4
Alaska Airlines Logo
4:10 pm - 11:13 pm
ORD
-
STS
9h 03m
1 stop
Alaska Airlines Logo
7:23 am - 7:03 pm
STS
-
ORD
9h 40m
1 stop
$223Alaska Airlines
Tue, Apr 7 - Mon, May 11
Alaska Airlines Logo
3:52 pm - 10:58 am
ORD
-
STS
21h 06m
1 stop
Alaska Airlines Logo
7:23 am - 11:59 pm
STS
-
ORD
14h 36m
2 stops
$263Alaska Airlines
Tue, May 5 - Tue, May 12
Alaska Airlines Logo
4:10 pm - 11:13 pm
ORD
-
STS
9h 03m
1 stop
Alaska Airlines Logo
1:13 pm - 11:59 pm
STS
-
ORD
8h 46m
1 stop
$270Alaska Airlines
Wed, Apr 15 - Wed, Apr 22
Alaska Airlines Logo
3:52 pm - 11:27 pm
ORD
-
STS
9h 35m
1 stop
Alaska Airlines Logo
7:23 am - 1:13 pm
STS
-
ORD
27h 50m
1 stop
$275Alaska Airlines
Thu, Apr 30 - Mon, May 4
Alaska Airlines Logo
4:10 pm - 11:13 pm
ORD
-
STS
9h 03m
1 stop
Alaska Airlines Logo
8:20 am - 11:59 pm
STS
-
ORD
13h 39m
2 stops
$278Alaska Airlines
Wed, Apr 15 - Wed, Apr 22
Alaska Airlines Logo
6:00 am - 11:01 pm
ORD
-
STS
19h 01m
2 stops
Alaska Airlines Logo
8:00 pm - 1:13 pm
STS
-
ORD
15h 13m
1 stop
$292Alaska Airlines
Thu, Apr 30 - Mon, May 4
Alaska Airlines Logo
2:10 pm - 11:56 pm
ORD
-
STS
11h 46m
1 stop
Alaska Airlines Logo
7:40 pm - 1:14 pm
STS
-
ORD
15h 34m
1 stop
$295Alaska Airlines
Tue, May 19 - Sat, May 23
Alaska Airlines Logo
4:10 pm - 11:13 pm
ORD
-
STS
9h 03m
1 stop
Alaska Airlines Logo
7:23 am - 7:03 pm
STS
-
ORD
9h 40m
1 stop
$302Alaska Airlines
Thu, Apr 9 - Mon, May 11
Alaska Airlines Logo
8:48 pm - 8:48 pm
ORD
-
STS
26h 00m
2 stops
Alaska Airlines Logo
8:00 pm - 1:13 pm
STS
-
ORD
15h 13m
1 stop
$311Alaska Airlines
Fri, May 1 - Mon, May 4

Alaska Airlines flights from Chicago O'Hare Intl Airport to Santa Rosa

Our best Alaska Airlines deals on Chicago O'Hare Intl Airport to Santa Rosa flight tickets
Alaska Airlines
May 1
ORD3:52 pmChicago O'Hare Intl
9h 35m
1 stop
STS11:27 pmSanta Rosa Sonoma County
May 4
STS8:00 pmSanta Rosa Sonoma County
15h 13m
1 stop
ORD1:13 pmChicago O'Hare Intl
$215
Alaska Airlines
May 5
ORD3:52 pmChicago O'Hare Intl
21h 06m
1 stop
STS10:58 amSanta Rosa Sonoma County
May 12
STS7:23 amSanta Rosa Sonoma County
9h 40m
1 stop
ORD7:03 pmChicago O'Hare Intl
$223
Alaska Airlines
May 5
ORD3:52 pmChicago O'Hare Intl
21h 06m
1 stop
STS10:58 amSanta Rosa Sonoma County
May 12
STS7:23 amSanta Rosa Sonoma County
14h 36m
2 stops
ORD11:59 pmChicago O'Hare Intl
$263

American Airlines flights from Chicago O'Hare Intl Airport to Santa Rosa

Our best American Airlines deals on Chicago O'Hare Intl Airport to Santa Rosa flight tickets
American Airlines
Apr 4
ORD9:45 amChicago O'Hare Intl
8h 08m
1 stop
STS3:53 pmSanta Rosa Sonoma County
Apr 11
STS4:23 pmSanta Rosa Sonoma County
6h 09m
1 stop
ORD12:32 amChicago O'Hare Intl
$450
American Airlines
Mar 7
ORD7:05 amChicago O'Hare Intl
7h 28m
1 stop
STS12:33 pmSanta Rosa Sonoma County
Mar 7
STS4:17 pmSanta Rosa Sonoma County
6h 34m
1 stop
ORD12:51 amChicago O'Hare Intl
$863
American Airlines
Mar 7
ORD9:45 amChicago O'Hare Intl
8h 02m
1 stop
STS3:47 pmSanta Rosa Sonoma County
Mar 8
STS4:23 pmSanta Rosa Sonoma County
6h 28m
1 stop
ORD12:51 amChicago O'Hare Intl
$869

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated February 25, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Santa Rosa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Fri 5/1

3:52 pm-11:27 pm

1 stop9h 35m

Santa Rosa Sonoma County

Mon 5/4

8:00 pm-1:13 pm

1 stop15h 13m

$215

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 4/7

4:10 pm-11:13 pm

1 stop9h 03m

Santa Rosa Sonoma County

Mon 5/11

7:23 am-7:03 pm

1 stop9h 40m

$223

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 5/5

3:52 pm-10:58 am

1 stop21h 06m

Santa Rosa Sonoma County

Tue 5/12

7:23 am-11:59 pm

2 stops14h 36m

$263

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Wed 4/15

4:10 pm-11:13 pm

1 stop9h 03m

Santa Rosa Sonoma County

Wed 4/22

1:13 pm-11:59 pm

1 stop8h 46m

$270

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Thu 4/30

3:52 pm-11:27 pm

1 stop9h 35m

Santa Rosa Sonoma County

Mon 5/4

7:23 am-1:13 pm

1 stop27h 50m

$275

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Wed 4/15

4:10 pm-11:13 pm

1 stop9h 03m

Santa Rosa Sonoma County

Wed 4/22

8:20 am-11:59 pm

2 stops13h 39m

$278

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Thu 4/30

6:00 am-11:01 pm

2 stops19h 01m

Santa Rosa Sonoma County

Mon 5/4

8:00 pm-1:13 pm

1 stop15h 13m

$292

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 5/19

2:10 pm-11:56 pm

1 stop11h 46m

Santa Rosa Sonoma County

Sat 5/23

7:40 pm-1:14 pm

1 stop15h 34m

$295

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Thu 4/9

4:10 pm-11:13 pm

1 stop9h 03m

Santa Rosa Sonoma County

Mon 5/11

7:23 am-7:03 pm

1 stop9h 40m

$302

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Fri 5/1

8:48 pm-8:48 pm

2 stops26h 00m

Santa Rosa Sonoma County

Mon 5/4

8:00 pm-1:13 pm

1 stop15h 13m

$311

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 airline that flies from Chicago O'Hare Intl to Santa Rosa Sonoma County?

Alaska Airlines is the most popular carrier operating from Chicago O'Hare Intl to Santa Rosa Sonoma County

What airlines fly to Santa Rosa?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Santa Rosa from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Santa Rosa. Keep in mind that there are 10 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 O'Hare Intl Airport to Santa Rosa

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Santa Rosa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Santa Rosa (ORD to STS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Santa Rosa

Fastest flight time

7h 06m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Santa Rosa takes 7h 06m
There are no direct flights from Chicago O'Hare Intl Airport to Santa Rosa. There are no popular flight routes from Chicago O'Hare Intl Airport to Santa Rosa.
Search flight deals

  • How far is Chicago O'Hare Intl to Santa Rosa Sonoma County by plane?

    A flight from Chicago O'Hare Intl to Santa Rosa Sonoma County will travel around 1838.9 mi. Typically, this will take 7h 06m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Santa Rosa Sonoma County Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Santa Rosa Sonoma County Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Santa Rosa Sonoma County Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Santa Rosa Sonoma County Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Santa Rosa?

Best airlines flying from Chicago O'Hare Intl Airport to Santa Rosa

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Santa Rosa with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $444Free CancellationRating
7.8
2,836 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $478Free CancellationRating
7.1
11,354 reviews
Search American Airlines flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Fort Bragg
Mendocino
Ukiah
Little River
Point Arena

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Santa Rosa?

It is quick and easy to find Chicago to Santa Rosa flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Santa Rosa that suits you.

Can I find flights from Chicago to Santa Rosa with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Chicago to Santa Rosa flights to just show those with flexible booking policies.

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.

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