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$108+ Cheap flights from Chicago (CHI) to Sonoma, CA

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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
dic. 23 — dic. 301
lun. 12/23
lun. 12/30
1 adult, Economy
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The best prices from Chicago to Sonoma are usually found in April or September, booked 88 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Chicago to Sonoma

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Sonoma (SN9). 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 diciembre 18, 2024.

Round-trip from

$207
(United Airlines)

One-way from

$108
(United Airlines)

Popular in

March

Cheapest in

April

Average price

$359
From Chicago (CHI) to Sonoma
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One-way flight from Chicago (CHI) to Sonoma
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High demand for flights, 0% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Chicago to Sonoma

Cheapest flights from Chicago to Sonoma
Explore the most affordable flight options available from Chicago to Sonoma. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 18, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2310:04 pmMDW - SFO
1 stop28h 17mFrontier
jue. 1/910:29 pmSFO - MDW
1 stop11h 19mFrontier
Deal found 12/16$271
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/316:55 amORD - SFO
1 stop27h 04mFrontier
jue. 1/911:49 amSFO - ORD
1 stop10h 00mFrontier
Deal found 12/17$271
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/2410:00 amORD - SFO
1 stop9h 07mMultiple Airlines
jue. 1/93:05 pmSFO - ORD
1 stop26h 20mMultiple Airlines
Deal found 12/17$287
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/257:10 amORD - SFO
1 stop6h 51mUnited Airlines
jue. 1/94:55 pmSFO - ORD
Nonstop4h 24mUnited Airlines
Deal found 12/17$364
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/243:18 pmORD - SFO
1 stop7h 56mDelta
mar. 1/710:45 pmSFO - ORD
1 stop8h 31mDelta
Deal found 12/16$377
This Sun Country Air deal was found by Cheapflights users on 12/17. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2510:00 amORD - SFO
1 stop14h 51mSun Country Air
lun. 12/3011:59 pmSFO - ORD
1 stop15h 39mSun Country Air
Deal found 12/17$385
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/249:30 amMDW - SFO
1 stop7h 18mDelta
mar. 12/3112:10 amSFO - MDW
1 stop8h 58mDelta
Deal found 12/17$387
This Alaska Airlines deal was found by Cheapflights users on 12/17. 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.
mar. 12/316:56 pmORD - SFO
Nonstop5h 03mAlaska Airlines
vie. 1/1010:00 amSFO - ORD
Nonstop4h 27mAlaska Airlines
Deal found 12/17$388
This American Airlines deal was found by Cheapflights users on 12/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/198:38 amORD - SFO
Nonstop4h 52mAmerican Airlines
mié. 1/81:20 pmSFO - ORD
Nonstop4h 21mAmerican Airlines
Deal found 12/18$403
This Southwest deal was found by Cheapflights users on 12/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/237:00 pmMDW - SFO
Nonstop4h 45mSouthwest
mié. 1/85:20 amSFO - MDW
1 stop7h 15mSouthwest
Deal found 12/17$413
This Southwest deal was found by Cheapflights users on 12/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/231:45 pmORD - SFO
2 stops9h 00mSouthwest
mié. 1/812:00 pmSFO - ORD
1 stop9h 05mSouthwest
Deal found 12/17$427

Find flights from Chicago to Sonoma within your budget

Customize your flight search to find flights from Chicago to Sonoma 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 diciembre 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

sáb. 1/18

6:22 pm-9:21 pm

Nonstop4h 59m

San Francisco

lun. 1/20

11:59 pm-6:18 am

Nonstop4h 19m

$207

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

dom. 1/19

7:15 am-12:44 pm

1 stop7h 29m

San Francisco

sáb. 1/25

10:29 pm-11:44 am

1 stop11h 15m

$208

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

jue. 1/9

8:30 am-11:24 am

Nonstop4h 54m

San Francisco

mié. 1/15

5:20 am-11:36 am

Nonstop4h 16m

$208

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

mar. 2/4

7:45 am-1:47 pm

1 stop8h 02m

San Francisco

jue. 2/6

11:33 am-11:44 pm

1 stop10h 11m

$209

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

jue. 1/16

4:41 pm-7:50 pm

2 stops29h 09m

San Francisco

jue. 1/23

10:29 pm-7:28 pm

1 stop18h 59m

$210

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

vie. 1/31

6:55 pm-9:54 pm

Nonstop4h 59m

San Francisco

jue. 2/6

1:40 pm-7:59 pm

Nonstop4h 19m

$214

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

sáb. 1/11

5:05 pm-11:22 pm

1 stop8h 17m

San Francisco

mar. 1/14

6:00 am-4:21 pm

1 stop8h 21m

$256

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

mié. 1/8

5:00 pm-12:14 am

1 stop9h 14m

San Francisco

dom. 1/12

5:55 am-4:13 pm

1 stop8h 18m

$256

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

sáb. 2/1

9:05 am-12:00 pm

Nonstop4h 55m

San Francisco

mar. 2/4

10:35 am-7:35 pm

1 stop7h 00m

$257

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

mié. 2/12

1:45 pm-9:35 pm

2 stops9h 50m

San Francisco

dom. 2/16

5:00 am-6:10 pm

2 stops11h 10m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 22 results
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Best time to book a flight from Chicago to Sonoma

Have a flexible travel schedule? Discover the best time to fly to Sonoma from Chicago 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.

Travel insights for flights from Chicago to Sonoma

Get recent, data-driven insights about flights from Chicago to Sonoma including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Chicago to Sonoma?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Sonoma. Price data was last updated on December 13, 2024.

The best time to book flights from Chicago to Sonoma is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago to Sonoma?

Currently, January is the cheapest month in which you can book a flight from Chicago to Sonoma (average of $276). Flying from Chicago to Sonoma in June is currently the most expensive (average of $381). 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 CHI to SN9?

Find hourly flight availability from Chicago to Sonoma. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 18, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago to Sonoma as you normally would.

What is the cheapest day to fly from Chicago to Sonoma?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Sonoma. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to Sonoma flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Sonoma by month

Plan your trip to Sonoma by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sonoma ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit Sonoma when rainfall is around 0.0 in.

Temperature in Sonoma by month

Plan your trip to Sonoma by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sonoma, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Sonoma

Get insights into the airlines that provide service to Sonoma. 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 Sonoma. Reviews last updated diciembre 18, 2024.
Get a feel of what it's like to fly with American Airlines, Alaska Airlines and Delta from Chicago to Sonoma by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Sonoma. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Chicago to Sonoma one-way?

    $108 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Southwest and Alaska Airlines, with prices starting from $109 and $109, respectively.

  • What are the most reliable airlines from Chicago to Sonoma?

    The top 3 most reliable airlines when flying from Chicago to Sonoma are Air China (100%), ANA (97%) and United Airlines (83%).

  • What are the cheapest flights from Chicago to Sonoma?

    On average you can expect to pay $929 for a flight from Chicago to Sonoma. The cheapest flight overall is $118 while the most popular route, (Chicago O'Hare Intl - San Francisco) is currently priced at $173.

  • Can I find deals for flights from Chicago to Sonoma that include hotel bookings?

    Yes. In addition to deals on Chicago to Sonoma flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Sonoma?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Sonoma.

  • Can I find deals for business class flights from Chicago to Sonoma?

    Yes. Cheapflights offers flight deals from Chicago to Sonoma 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 to Sonoma?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Sonoma (average of $276). Flying from Chicago to Sonoma in June is currently the most expensive (average of $381). 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.

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Alternative routes for Chicago to Sonoma

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Top 7 airlines flying from Chicago to Sonoma

Discover the top 7 airlines that operate flights from Chicago to Sonoma. 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 diciembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$82Average$216FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$133Average$243FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$148Average$415FlexibilityNo cancel feeOn-time75%
DeltaCheapest$174Average$408FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$178Average$439FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$179Average$383FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$242Average$428FlexibilityNo cancel feeOn-time63%
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