HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Santa Rosa

$129+ Cheap flights from O'Hare Intl (ORD) to Santa Rosa (STS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — STS
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Santa Rosa with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from O'Hare Intl to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Santa Rosa (STS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$287
(Alaska Airlines)

One-way from

$129
(Alaska Airlines)

Popular in

September

Cheapest in

July

Average price

$448
Provider with most accurate pricing for Chicago O'Hare Intl-Santa Rosa Sonoma County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Santa Rosa Sonoma County flights.
Search Deals
From Chicago O'Hare Intl to Santa Rosa Sonoma County
Search Deals
One-way flight from Chicago O'Hare Intl to Santa Rosa Sonoma County
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from O'Hare Intl to Santa Rosa

Cheapest flights from O'Hare Intl to Santa Rosa
Explore the most affordable flight options available from O'Hare Intl to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This Orbitz deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:59 pmORD - STS
1 stop19h 37mAlaska Airlines
Mon 12/86:43 pmSTS - ORD
1 stop23h 11mAlaska Airlines
Deal found 11/2$300
This Alaska Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:55 amORD - STS
1 stop15h 59mAlaska Airlines
Fri 1/28:17 pmSTS - ORD
1 stop6h 45mAlaska Airlines
Deal found 11/2$368
This Alaska Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:00 amORD - STS
1 stop7h 49mAlaska Airlines
Wed 12/36:43 pmSTS - ORD
1 stop17h 26mAlaska Airlines
Deal found 11/2$402
This Alaska Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amORD - STS
1 stop14h 02mAlaska Airlines
Fri 1/28:17 pmSTS - ORD
1 stop6h 45mAlaska Airlines
Deal found 11/1$442
This Alaska Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:49 pmORD - STS
1 stop19h 47mAlaska Airlines
Mon 12/86:43 pmSTS - ORD
1 stop27h 07mAlaska Airlines
Deal found 11/2$443
This Alaska Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:00 amORD - STS
1 stop7h 49mAlaska Airlines
Tue 12/22:21 pmSTS - ORD
1 stop7h 38mAlaska Airlines
Deal found 11/2$455
This Alaska Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amORD - STS
1 stop14h 02mAlaska Airlines
Sun 1/42:24 pmSTS - ORD
1 stop19h 49mAlaska Airlines
Deal found 11/1$467
This Alaska Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:00 amORD - STS
1 stop7h 49mAlaska Airlines
Wed 12/36:43 pmSTS - ORD
1 stop17h 26mAlaska Airlines
Deal found 11/2$470

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated November 3, 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

O'Hare Intl

Fly to

Santa Rosa

Route

Depart

Return

Price

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Mon 3/2

2:59 pm-11:07 am

1 stop22h 08m

Santa Rosa Sonoma County

Fri 3/6

6:58 am-1:59 pm

1 stop29h 01m

$287

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sun 2/15

9:00 am-10:46 pm

1 stop15h 46m

Santa Rosa Sonoma County

Thu 2/19

6:58 am-11:10 pm

1 stop14h 12m

$288

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sat 2/14

2:59 pm-10:46 pm

1 stop9h 47m

Santa Rosa Sonoma County

Tue 2/17

6:58 am-11:10 pm

1 stop14h 12m

$288

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Wed 2/25

2:59 pm-10:46 pm

1 stop9h 47m

Santa Rosa Sonoma County

Wed 3/11

11:18 am-11:59 pm

1 stop10h 41m

$290

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sat 1/17

9:00 am-2:29 pm

1 stop7h 29m

Santa Rosa Sonoma County

Sat 1/24

11:05 am-11:37 pm

2 stops10h 32m

$296

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Fri 12/5

8:59 pm-2:36 pm

1 stop19h 37m

Santa Rosa Sonoma County

Mon 12/8

6:43 pm-7:54 pm

1 stop23h 11m

$300

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Wed 1/28

6:06 pm-10:58 pm

2 stops30h 52m

Santa Rosa Sonoma County

Sun 2/1

6:52 pm-11:37 pm

1 stop26h 45m

$323

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Sat 2/14

2:59 pm-11:07 am

1 stop22h 08m

Santa Rosa Sonoma County

Mon 2/16

6:58 am-1:59 pm

1 stop29h 01m

$328

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Wed 12/3

3:05 pm-10:54 pm

1 stop9h 49m

$129

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

Wed 2/4

9:00 am-7:18 pm

1 stop12h 18m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 17 results
1
2

Compare providers for flights from O'Hare Intl to Santa Rosa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Santa Rosa in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Santa Rosa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago O'Hare Intl Airport-Santa Rosa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Santa Rosa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Santa Rosa flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Santa Rosa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Santa Rosa

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Santa Rosa?

Currently, March is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Santa Rosa (average of $131). Flying from Chicago O'Hare Intl Airport to Santa Rosa in June is currently the most expensive (average of $198). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to STS?

Find hourly flight availability from O'Hare Intl to Santa Rosa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

One of the essential ways to save on airfare from Chicago O'Hare Intl Airport to Santa Rosa is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 53% on airfare.

Reviews of airlines servicing Santa Rosa

Get insights into the airlines that provide service to Santa Rosa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santa Rosa. Reviews last updated November 3, 2025.
Read reviews from past customers who have flown Hawaiian Airlines and American Airlines from Chicago O'Hare Intl Airport to Santa Rosa. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Hawaiian Airlines
7.8
Good
2,799 reviews

Crew

8.5

Boarding

8.0

Food

7.0

Entertainment

7.1

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

LAX - DCA

I booked my flight through Kayak, a third-party website, and paid extra for reserved seating. A few days before our trip, Alaska Airlines emailed to let me know that it had changed our reserved seats and separated us. I was traveling with my son who has a disability and we needed seats next to each other. So, I called Alaska and talked to an agent but she refused to give our seats back together. She blamed me for buying my tickets through a third party and said that this wouldn't have happened if I brought directly from Alaska Airlines. I was appalled by the agent's lack of empathy and ignorance of what my son's disability entails. Even though I tried explaining to her that one of the manifestations of my son's disability is high anxiety and that anxiety sky-rockets when he's in crowded places or is taken out of his routines, she just could not care less.
Hawaiian Airlines
7.8
Good
2,799 reviews
Hawaiian Airlines
7.8
Good
2,799 reviews

Crew

8.5

Boarding

8.0

Food

7.0

Entertainment

7.1

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

LAX - DCA

I booked my flight through Kayak, a third-party website, and paid extra for reserved seating. A few days before our trip, Alaska Airlines emailed to let me know that it had changed our reserved seats and separated us. I was traveling with my son who has a disability and we needed seats next to each other. So, I called Alaska and talked to an agent but she refused to give our seats back together. She blamed me for buying my tickets through a third party and said that this wouldn't have happened if I brought directly from Alaska Airlines. I was appalled by the agent's lack of empathy and ignorance of what my son's disability entails. Even though I tried explaining to her that one of the manifestations of my son's disability is high anxiety and that anxiety sky-rockets when he's in crowded places or is taken out of his routines, she just could not care less.
American Airlines
7.2
Good
11,037 reviews
Hawaiian Airlines
7.8
Good
2,799 reviews

Crew

8.5

Boarding

8.0

Food

7.0

Entertainment

7.1

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

LAX - DCA

I booked my flight through Kayak, a third-party website, and paid extra for reserved seating. A few days before our trip, Alaska Airlines emailed to let me know that it had changed our reserved seats and separated us. I was traveling with my son who has a disability and we needed seats next to each other. So, I called Alaska and talked to an agent but she refused to give our seats back together. She blamed me for buying my tickets through a third party and said that this wouldn't have happened if I brought directly from Alaska Airlines. I was appalled by the agent's lack of empathy and ignorance of what my son's disability entails. Even though I tried explaining to her that one of the manifestations of my son's disability is high anxiety and that anxiety sky-rockets when he's in crowded places or is taken out of his routines, she just could not care less.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Santa Rosa from Chicago O'Hare Intl?

    Located just 7.2 mi from the city center, Santa Rosa Sonoma County is the airport most travelers will use when flying to Santa Rosa from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to Sonoma County (STS) should be relatively easy as there are 0 daily inbound flights from Chicago O'Hare Intl from 2 different airlines.

  • How long is the flight from Chicago O'Hare Intl Airport to Santa Rosa?

    A quick flight from Chicago O'Hare Intl Airport to Santa Rosa can take about 22h 08m. Alaska Airlines provides one of the quickest options available for as low as $287. There are 1842 mi between Chicago O'Hare Intl Airport and Santa Rosa.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Santa Rosa round-trip?

    Flying on American Airlines is currently your cheapest option to Santa Rosa, with prices starting at $384. Another option worth looking into is Hawaiian Airlines, starting at $444 round trip. You may be able to fly from Chicago O'Hare Intl Airport to Santa Rosa for 40% less than the average price by searching for these airlines.

  • Can I find deals for flights from O'Hare Intl to Santa Rosa that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Santa Rosa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Santa Rosa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Santa Rosa.

  • Can I find deals for business class flights from O'Hare Intl to Santa Rosa?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Santa Rosa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Santa Rosa?

    Currently, March is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Santa Rosa (average of $131). Flying from Chicago O'Hare Intl Airport to Santa Rosa in June is currently the most expensive (average of $198). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Santa Rosa?

Book flights to Santa Rosa if you plan to visit one of these locations
Fort Bragg
Ukiah

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for O'Hare Intl to Santa Rosa

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Las Vegas flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to San Francisco flights
Midway to Las Vegas flights
O'Hare Intl to San Diego flights
O'Hare Intl to Santa Ana flights
O'Hare Intl to Ontario flights
O'Hare Intl to Palm Springs flights
Midway to San Francisco flights
Midway to Los Angeles flights
O'Hare Intl to San Jose flights
O'Hare Intl to Sacramento flights
O'Hare Intl to Burbank flights
O'Hare Intl to Reno flights
Midway to San Diego flights
O'Hare Intl to Oakland flights
Rockford to Las Vegas flights
Midway to Santa Ana flights
Midway to Ontario flights
Midway to Palm Springs flights
Midway to San Jose flights
O'Hare Intl to Santa Barbara flights
Midway to Sacramento flights
Midway to Burbank flights
Midway to Oakland flights
Midway to Reno flights
O'Hare Intl to Long Beach flights
O'Hare Intl to Fresno flights
O'Hare Intl to Monterey flights
Midway to Long Beach flights
O'Hare Intl to Medford flights
O'Hare Intl to San Luis Obispo flights
Midway to Fresno flights
O'Hare Intl to Redding flights
O'Hare Intl to Tijuana flights
O'Hare Intl to Arcata flights
O'Hare Intl to Bakersfield flights
Midway to Medford flights
O'Hare Intl to Yuma flights
Midway to Tijuana flights
O'Hare Intl to Mexicali flights
Midway to Mexicali flights
O'Hare Intl to Mammoth Lakes flights
O'Hare Intl to Merced flights

Top 2 airlines flying from O'Hare Intl to Santa Rosa

Discover the top 2 airlines that operate flights from O'Hare Intl to Santa Rosa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$384Average$743FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$444Average$547FlexibilityNo cancel feeOn-time85%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.