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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from $157

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 8/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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.
American Airlines Logo
5:00 am - 12:09 pm
ORD
-
STS
9h 09m
1 stop
American Airlines Logo
12:58 pm - 12:28 am
STS
-
ORD
9h 30m
1 stop
$313American Airlines
Tue, Aug 25 - Tue, Sep 1
Alaska Airlines Logo
2:20 pm - 9:54 am
ORD
-
STS
21h 34m
1 stop
Alaska Airlines Logo
6:47 pm - 1:22 pm
STS
-
ORD
16h 35m
1 stop
$346Alaska Airlines
Tue, Aug 18 - Thu, Aug 20
Alaska Airlines Logo
6:01 am - 2:12 pm
ORD
-
STS
10h 11m
1 stop
Alaska Airlines Logo
10:34 am - 7:21 pm
STS
-
ORD
6h 47m
1 stop
$357Alaska Airlines
Sat, Aug 22 - Tue, Aug 25
Alaska Airlines Logo
6:20 am - 5:16 pm
ORD
-
STS
12h 56m
2 stops
Alaska Airlines Logo
1:06 pm - 6:57 pm
STS
-
ORD
27h 51m
2 stops
$360Alaska Airlines
Tue, Jul 14 - Tue, Jul 21
Alaska Airlines Logo
2:18 pm - 9:54 am
ORD
-
STS
21h 36m
1 stop
Alaska Airlines Logo
10:34 am - 7:21 pm
STS
-
ORD
6h 47m
1 stop
$363Alaska Airlines
Fri, Aug 21 - Tue, Aug 25
Alaska Airlines Logo
6:01 am - 2:12 pm
ORD
-
STS
10h 11m
1 stop
Alaska Airlines Logo
1:40 pm - 7:21 pm
STS
-
ORD
27h 41m
2 stops
$372Alaska Airlines
Tue, Aug 25 - Tue, Sep 1
Alaska Airlines Logo
5:59 pm - 10:58 pm
ORD
-
STS
6h 59m
1 stop
Alaska Airlines Logo
5:56 pm - 1:21 pm
STS
-
ORD
17h 25m
1 stop
$379Alaska Airlines
Sat, Aug 8 - Mon, Aug 10
Alaska Airlines Logo
6:20 am - 5:16 pm
ORD
-
STS
12h 56m
2 stops
Alaska Airlines Logo
5:56 pm - 1:21 pm
STS
-
ORD
17h 25m
1 stop
$380Alaska Airlines
Tue, Jul 14 - Tue, Jul 21
Alaska Airlines Logo
7:20 am - 4:55 pm
ORD
-
STS
11h 35m
2 stops
Alaska Airlines Logo
7:00 am - 5:00 am
STS
-
ORD
20h 00m
1 stop
$390Alaska Airlines
Sat, Aug 8 - Mon, Aug 10
Alaska Airlines Logo
7:20 am - 12:26 pm
ORD
-
STS
7h 06m
1 stop
Alaska Airlines Logo
7:03 pm - 5:00 am
STS
-
ORD
7h 57m
1 stop
$393Alaska Airlines
Tue, Jul 7 - Wed, Jul 15

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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
Aug 18
ORD2:20 pmChicago O'Hare Intl
21h 34m
1 stop
STS9:54 amSanta Rosa Sonoma County
Aug 20
STS6:47 pmSanta Rosa Sonoma County
16h 35m
1 stop
ORD1:22 pmChicago O'Hare Intl
$346
Alaska Airlines
Aug 22
ORD6:01 amChicago O'Hare Intl
10h 11m
1 stop
STS2:12 pmSanta Rosa Sonoma County
Aug 25
STS10:34 amSanta Rosa Sonoma County
6h 47m
1 stop
ORD7:21 pmChicago O'Hare Intl
$357
Alaska Airlines
Jul 14
ORD6:20 amChicago O'Hare Intl
12h 56m
2 stops
STS5:16 pmSanta Rosa Sonoma County
Jul 21
STS1:06 pmSanta Rosa Sonoma County
27h 51m
2 stops
ORD6:57 pmChicago O'Hare Intl
$360

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
Aug 25
ORD5:00 amChicago O'Hare Intl
9h 09m
1 stop
STS12:09 pmSanta Rosa Sonoma County
Sep 1
STS12:58 pmSanta Rosa Sonoma County
9h 30m
1 stop
ORD12:28 amChicago O'Hare Intl
$313
American Airlines
Jul 4
ORD5:00 amChicago O'Hare Intl
6h 52m
1 stop
STS9:52 amSanta Rosa Sonoma County
Jul 11
STS12:43 pmSanta Rosa Sonoma County
8h 56m
1 stop
ORD11:39 pmChicago O'Hare Intl
$435
American Airlines
Jun 29
ORD5:00 amChicago O'Hare Intl
9h 05m
1 stop
STS12:05 pmSanta Rosa Sonoma County
Jul 3
STS4:12 pmSanta Rosa Sonoma County
6h 39m
1 stop
ORD12:51 amChicago O'Hare Intl
$436

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 June 15, 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

Cheapest round-trip

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 8/25

5:00 am-12:09 pm

1 stop9h 09m

Santa Rosa Sonoma County

Tue 9/1

12:58 pm-12:28 am

1 stop9h 30m

$313

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 8/18

2:20 pm-9:54 am

1 stop21h 34m

Santa Rosa Sonoma County

Thu 8/20

6:47 pm-1:22 pm

1 stop16h 35m

$346

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sat 8/22

6:01 am-2:12 pm

1 stop10h 11m

Santa Rosa Sonoma County

Tue 8/25

10:34 am-7:21 pm

1 stop6h 47m

$357

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 7/14

6:20 am-5:16 pm

2 stops12h 56m

Santa Rosa Sonoma County

Tue 7/21

1:06 pm-6:57 pm

2 stops27h 51m

$360

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Fri 8/21

2:18 pm-9:54 am

1 stop21h 36m

Santa Rosa Sonoma County

Tue 8/25

10:34 am-7:21 pm

1 stop6h 47m

$363

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 8/25

6:01 am-2:12 pm

1 stop10h 11m

Santa Rosa Sonoma County

Tue 9/1

1:40 pm-7:21 pm

2 stops27h 41m

$372

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sat 8/8

5:59 pm-10:58 pm

1 stop6h 59m

Santa Rosa Sonoma County

Mon 8/10

5:56 pm-1:21 pm

1 stop17h 25m

$379

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 7/14

6:20 am-5:16 pm

2 stops12h 56m

Santa Rosa Sonoma County

Tue 7/21

5:56 pm-1:21 pm

1 stop17h 25m

$380

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sat 8/8

7:20 am-4:55 pm

2 stops11h 35m

Santa Rosa Sonoma County

Mon 8/10

7:00 am-5:00 am

1 stop20h 00m

$390
Quickest round-trip

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Tue 7/7

7:20 am-12:26 pm

1 stop7h 06m

Santa Rosa Sonoma County

Wed 7/15

7:03 pm-5:00 am

1 stop7h 57m

$393

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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 typical price of a round-trip flight between Chicago O'Hare Intl Airport 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 January, then departing from Chicago O'Hare Intl Airport 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 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

6h 59m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Santa Rosa takes 6h 59m
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

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Santa Rosa

  • 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 6h 59m 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
Alaska AirlinesPriceFrom $285Free CancellationRating
7.9
12,508 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $465Free CancellationRating
7.1
11,662 reviews
Search American Airlines flights

Traveling to a place near San Francisco?

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Fort Bragg
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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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