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Cheap flights from Chicago to San Francisco from $152

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 to San Francisco departing on 6/9. 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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0 bags

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Find the cheapest flights from Chicago to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
9:00 am - 2:13 pm
ORD
-
STS
7h 13m
1 stop
Alaska Airlines Logo
7:01 am - 6:50 pm
STS
-
ORD
9h 49m
1 stop
$303Alaska Airlines
Tue, Jun 2 - Tue, Jun 9
American Airlines Logo
6:00 am - 12:03 pm
ORD
-
STS
8h 03m
1 stop
American Airlines Logo
4:20 pm - 12:28 am
STS
-
ORD
6h 08m
1 stop
$313American Airlines
Wed, Jun 3 - Tue, Jun 9
American Airlines Logo
5:00 am - 12:33 pm
ORD
-
STS
9h 33m
1 stop
American Airlines Logo
12:43 pm - 12:42 am
STS
-
ORD
9h 59m
1 stop
$331American Airlines
Mon, Jun 1 - Wed, Jun 3
Alaska Airlines Logo
7:59 pm - 11:25 am
ORD
-
STS
17h 26m
1 stop
Alaska Airlines Logo
7:40 pm - 1:14 pm
STS
-
ORD
15h 34m
1 stop
$336Alaska Airlines
Mon, Jun 1 - Sat, Jun 6
Alaska Airlines Logo
6:01 am - 2:12 pm
ORD
-
STS
10h 11m
1 stop
Alaska Airlines Logo
2:52 pm - 11:41 pm
STS
-
ORD
6h 49m
1 stop
$341Alaska Airlines
Tue, Sep 22 - Wed, Sep 23
Alaska Airlines Logo
6:01 am - 2:12 pm
ORD
-
STS
10h 11m
1 stop
Alaska Airlines Logo
2:52 pm - 11:41 pm
STS
-
ORD
6h 49m
1 stop
$353Alaska Airlines
Tue, Sep 22 - Wed, Sep 23
American Airlines Logo
6:00 am - 12:03 pm
ORD
-
STS
8h 03m
1 stop
American Airlines Logo
12:43 pm - 12:42 am
STS
-
ORD
9h 59m
1 stop
$356American Airlines
Mon, Jun 1 - Wed, Jun 3
Alaska Airlines Logo
2:18 pm - 11:54 pm
ORD
-
STS
11h 36m
1 stop
Alaska Airlines Logo
6:53 pm - 1:26 pm
STS
-
ORD
16h 33m
1 stop
$359Alaska Airlines
Thu, Sep 17 - Mon, Sep 21
Alaska Airlines Logo
7:49 pm - 12:17 pm
ORD
-
STS
18h 28m
1 stop
Alaska Airlines Logo
7:00 am - 10:59 pm
STS
-
ORD
13h 59m
2 stops
$368Alaska Airlines
Tue, Jun 2 - Tue, Jun 9
Alaska Airlines Logo
2:10 pm - 11:50 pm
ORD
-
STS
11h 40m
1 stop
Alaska Airlines Logo
2:53 pm - 5:00 am
STS
-
ORD
12h 07m
2 stops
$373Alaska Airlines
Wed, Jun 3 - Tue, Jun 9

American Airlines flights from Chicago to Santa Rosa

Our best American Airlines deals on Chicago to Santa Rosa flight tickets
American Airlines
Jun 3
ORD6:00 amChicago O'Hare Intl
8h 03m
1 stop
STS12:03 pmSanta Rosa Sonoma County
Jun 9
STS4:20 pmSanta Rosa Sonoma County
6h 08m
1 stop
ORD12:28 amChicago O'Hare Intl
$313
American Airlines
Jun 1
ORD5:00 amChicago O'Hare Intl
9h 33m
1 stop
STS12:33 pmSanta Rosa Sonoma County
Jun 3
STS12:43 pmSanta Rosa Sonoma County
9h 59m
1 stop
ORD12:42 amChicago O'Hare Intl
$331
American Airlines
Jun 1
ORD6:00 amChicago O'Hare Intl
8h 03m
1 stop
STS12:03 pmSanta Rosa Sonoma County
Jun 3
STS12:43 pmSanta Rosa Sonoma County
9h 59m
1 stop
ORD12:42 amChicago O'Hare Intl
$356

Alaska Airlines flights from Chicago to Santa Rosa

Our best Alaska Airlines deals on Chicago to Santa Rosa flight tickets
Alaska Airlines
Jun 2
ORD9:00 amChicago O'Hare Intl
7h 13m
1 stop
STS2:13 pmSanta Rosa Sonoma County
Jun 9
STS7:01 amSanta Rosa Sonoma County
9h 49m
1 stop
ORD6:50 pmChicago O'Hare Intl
$303
Alaska Airlines
Jun 1
ORD7:59 pmChicago O'Hare Intl
17h 26m
1 stop
STS11:25 amSanta Rosa Sonoma County
Jun 6
STS7:40 pmSanta Rosa Sonoma County
15h 34m
1 stop
ORD1:14 pmChicago O'Hare Intl
$336
Alaska Airlines
Sep 22
ORD6:01 amChicago O'Hare Intl
10h 11m
1 stop
STS2:12 pmSanta Rosa Sonoma County
Sep 23
STS2:52 pmSanta Rosa Sonoma County
6h 49m
1 stop
ORD11:41 pmChicago O'Hare Intl
$341

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 May 7, 2026.
Use the filters below to find and compare flights from Chicago to Santa Rosa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 6/2

9:00 am-2:13 pm

1 stop7h 13m

Santa Rosa Sonoma County

Tue 6/9

7:01 am-6:50 pm

1 stop9h 49m

$303
Quickest round-trip

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Wed 6/3

6:00 am-12:03 pm

1 stop8h 03m

Santa Rosa Sonoma County

Tue 6/9

4:20 pm-12:28 am

1 stop6h 08m

$313

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Mon 6/1

5:00 am-12:33 pm

1 stop9h 33m

Santa Rosa Sonoma County

Wed 6/3

12:43 pm-12:42 am

1 stop9h 59m

$331

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Mon 6/1

7:59 pm-11:25 am

1 stop17h 26m

Santa Rosa Sonoma County

Sat 6/6

7:40 pm-1:14 pm

1 stop15h 34m

$336

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 9/22

6:01 am-2:12 pm

1 stop10h 11m

Santa Rosa Sonoma County

Wed 9/23

2:52 pm-11:41 pm

1 stop6h 49m

$341

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 9/22

6:01 am-2:12 pm

1 stop10h 11m

Santa Rosa Sonoma County

Wed 9/23

2:52 pm-11:41 pm

1 stop6h 49m

$353

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Mon 6/1

6:00 am-12:03 pm

1 stop8h 03m

Santa Rosa Sonoma County

Wed 6/3

12:43 pm-12:42 am

1 stop9h 59m

$356

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Thu 9/17

2:18 pm-11:54 pm

1 stop11h 36m

Santa Rosa Sonoma County

Mon 9/21

6:53 pm-1:26 pm

1 stop16h 33m

$359

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 6/2

7:49 pm-12:17 pm

1 stop18h 28m

Santa Rosa Sonoma County

Tue 6/9

7:00 am-10:59 pm

2 stops13h 59m

$368

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Wed 6/3

2:10 pm-11:50 pm

1 stop11h 40m

Santa Rosa Sonoma County

Tue 6/9

2:53 pm-5:00 am

2 stops12h 07m

$373

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 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 typical price of a round-trip flight between Chicago and Santa Rosa?

What is the cheapest month to fly to Santa Rosa?

If you are unable to visit Santa Rosa during the month of August, then departing from Chicago during the month December is also very affordable. Most momondo users find prices during this month for around $239.

When to book flights from Chicago to Santa Rosa

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

Cheap Chicago to Santa Rosa (CHI to STS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Santa Rosa

Fastest flight time

6h 59m

Direct flights

None
The fastest flight from Chicago to Santa Rosa takes 6h 59m
There are no direct flights from Chicago to Santa Rosa. There are no popular flight routes from Chicago to Santa Rosa.
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Frequently asked questions about flying from Chicago to Santa Rosa

  • How far is Chicago to Santa Rosa Sonoma County by plane?

    Santa Rosa Sonoma County is 1853.6 mi away from Chicago. A reasonable flight in good conditions will take 6h 59m.

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

    Prices for flights from Chicago to Santa Rosa Sonoma County Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago 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 to Santa Rosa?

Best airlines flying from Chicago to Santa Rosa

Compare and see reviews for airlines that fly from Chicago to Santa Rosa with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $478Free CancellationRating
7.1
11,669 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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Santa Rosa. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Santa Rosa from Chicago which offer a flexible booking policy as well as other useful filters and features.

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.

An easier way to manage your Santa Rosa trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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