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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from $186

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 2/16. 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
3:44 pm - 11:11 pm
ORD
-
STS
9h 27m1 stop
Alaska Airlines Logo
2:30 pm - 11:37 pm
STS
-
ORD
7h 07m1 stop
$292Alaska Airlines
Fri, Jan 30 - Wed, Feb 4
Alaska Airlines Logo
4:13 pm - 11:13 pm
ORD
-
STS
9h 00m1 stop
Alaska Airlines Logo
7:46 pm - 7:02 pm
STS
-
ORD
21h 16m1 stop
$297Alaska Airlines
Tue, Mar 31 - Mon, Apr 6
Alaska Airlines Logo
2:06 pm - 11:59 pm
ORD
-
STS
11h 53m2 stops
Alaska Airlines Logo
2:30 pm - 11:37 pm
STS
-
ORD
7h 07m1 stop
$308Alaska Airlines
Thu, Feb 5 - Tue, Feb 10
Alaska Airlines Logo
3:44 pm - 11:11 pm
ORD
-
STS
9h 27m1 stop
Alaska Airlines Logo
9:33 pm - 2:38 pm
STS
-
ORD
15h 05m1 stop
$312Alaska Airlines
Fri, Jan 30 - Thu, Feb 5
Alaska Airlines Logo
8:20 am - 7:02 pm
ORD
-
STS
12h 42m1 stop
Alaska Airlines Logo
7:57 pm - 11:56 pm
STS
-
ORD
25h 59m1 stop
$317Alaska Airlines
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
3:44 pm - 11:11 pm
ORD
-
STS
9h 27m1 stop
Alaska Airlines Logo
6:50 am - 11:50 pm
STS
-
ORD
15h 00m2 stops
$318Alaska Airlines
Fri, Jan 30 - Tue, Feb 3
Alaska Airlines Logo
7:00 am - 11:50 pm
ORD
-
STS
18h 50m1 stop
Alaska Airlines Logo
7:57 pm - 11:56 pm
STS
-
ORD
25h 59m1 stop
$322Alaska Airlines
Sun, Mar 1 - Fri, Mar 6
Alaska Airlines Logo
8:00 am - 8:58 am
ORD
-
STS
26h 58m2 stops
Alaska Airlines Logo
9:38 am - 11:37 pm
STS
-
ORD
11h 59m1 stop
$323Alaska Airlines
Sat, Jan 24 - Sat, Jan 31
Alaska Airlines Logo
6:06 pm - 10:35 am
ORD
-
STS
18h 29m1 stop
Alaska Airlines Logo
2:30 pm - 11:37 pm
STS
-
ORD
7h 07m1 stop
$327Alaska Airlines
Thu, Feb 5 - Tue, Feb 10
Alaska Airlines Logo
8:00 am - 8:58 am
ORD
-
STS
26h 58m2 stops
Alaska Airlines Logo
7:57 pm - 2:05 pm
STS
-
ORD
16h 08m1 stop
$328Alaska Airlines
Sat, Feb 7 - Sat, Feb 14

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
Jan 30
ORD3:44 pmChicago O'Hare Intl
9h 27m
1 stop
STS11:11 pmSanta Rosa Sonoma County
Feb 4
STS2:30 pmSanta Rosa Sonoma County
7h 07m
1 stop
ORD11:37 pmChicago O'Hare Intl
$292
Find similar
Alaska Airlines
Mar 31
ORD4:13 pmChicago O'Hare Intl
9h 00m
1 stop
STS11:13 pmSanta Rosa Sonoma County
Apr 6
STS7:46 pmSanta Rosa Sonoma County
21h 16m
1 stop
ORD7:02 pmChicago O'Hare Intl
$297
Find similar
Alaska Airlines
Feb 5
ORD2:06 pmChicago O'Hare Intl
11h 53m
2 stops
STS11:59 pmSanta Rosa Sonoma County
Feb 10
STS2:30 pmSanta Rosa Sonoma County
7h 07m
1 stop
ORD11:37 pmChicago O'Hare Intl
$308
Find similar

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 December 27, 2025.
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 1/30

3:44 pm-11:11 pm

1 stop9h 27m

Santa Rosa Sonoma County

Wed 2/4

2:30 pm-11:37 pm

1 stop7h 07m

$292

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 3/31

4:13 pm-11:13 pm

1 stop9h 00m

Santa Rosa Sonoma County

Mon 4/6

7:46 pm-7:02 pm

1 stop21h 16m

$297

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Thu 2/5

2:06 pm-11:59 pm

2 stops11h 53m

Santa Rosa Sonoma County

Tue 2/10

2:30 pm-11:37 pm

1 stop7h 07m

$308

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Fri 1/30

3:44 pm-11:11 pm

1 stop9h 27m

Santa Rosa Sonoma County

Thu 2/5

9:33 pm-2:38 pm

1 stop15h 05m

$312

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sat 2/28

8:20 am-7:02 pm

1 stop12h 42m

Santa Rosa Sonoma County

Wed 3/4

7:57 pm-11:56 pm

1 stop25h 59m

$317

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Fri 1/30

3:44 pm-11:11 pm

1 stop9h 27m

Santa Rosa Sonoma County

Tue 2/3

6:50 am-11:50 pm

2 stops15h 00m

$318

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sun 3/1

7:00 am-11:50 pm

1 stop18h 50m

Santa Rosa Sonoma County

Fri 3/6

7:57 pm-11:56 pm

1 stop25h 59m

$322

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sat 1/24

8:00 am-8:58 am

2 stops26h 58m

Santa Rosa Sonoma County

Sat 1/31

9:38 am-11:37 pm

1 stop11h 59m

$323

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Thu 2/5

6:06 pm-10:35 am

1 stop18h 29m

Santa Rosa Sonoma County

Tue 2/10

2:30 pm-11:37 pm

1 stop7h 07m

$327

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sat 2/7

8:00 am-8:58 am

2 stops26h 58m

Santa Rosa Sonoma County

Sat 2/14

7:57 pm-2:05 pm

1 stop16h 08m

$328

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 49% 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

8h 35m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Santa Rosa takes 8h 35m
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 8h 35m 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
American AirlinesPriceFrom $384Free CancellationRating
7.2
11,072 reviews
Search American Airlines flights
Hawaiian AirlinesPriceFrom $444Free CancellationRating
7.8
2,820 reviews
Search Hawaiian 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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