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$64+ Cheap flights from Chicago (CHI) to San Francisco Bay Area

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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
1 adult, Economy
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Find flight deals from Chicago to San Francisco Bay Area

Cheapest flights from Chicago to San Francisco Bay Area
Explore the most affordable flight options available from Chicago to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 3, 2025.

This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/98:55 amORD - SJC
1 stop7h 37mAlaska Airlines
mar. 12/1612:35 pmSJC - ORD
1 stop9h 15mAlaska Airlines
Deal found 11/1$238
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/146:00 amORD - SJC
1 stop7h 32mFrontier
lun. 11/1712:27 pmSJC - ORD
1 stop9h 48mFrontier
Deal found 11/1$239
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/247:44 pmORD - SJC
1 stop20h 48mMultiple Airlines
jue. 1/17:43 pmSJC - ORD
1 stop8h 22mMultiple Airlines
Deal found 11/2$245
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/43:05 pmORD - SJC
1 stop9h 37mAlaska Airlines
mar. 12/912:35 pmSJC - ORD
1 stop9h 15mAlaska Airlines
Deal found 11/1$250
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
dom. 12/73:05 pmORD - SJC
1 stop20h 46mHawaiian Airlines
mar. 12/1612:35 pmSJC - ORD
1 stop9h 15mHawaiian Airlines
Deal found 11/3$251
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/168:00 amORD - SJC
1 stop9h 54mAlaska Airlines
mar. 1/2012:46 pmSJC - ORD
1 stop8h 51mAlaska Airlines
Deal found 11/2$258
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
mié. 11/196:05 pmORD - SFO
1 stop6h 22mFrontier
lun. 11/249:03 amSFO - ORD
2 stops33h 25mFrontier
Deal found 11/3$258
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
sáb. 12/209:55 pmORD - SFO
1 stop25h 06mFrontier
sáb. 1/1011:20 pmSFO - ORD
1 stop9h 29mFrontier
Deal found 11/3$259
This Trip.com deal was found by Cheapflights users on 11/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1312:30 pmMDW - SFO
1 stop28h 10mFrontier
dom. 11/166:34 amSFO - MDW
1 stop26h 56mFrontier
Deal found 11/3$262
This Kissandfly.com 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/246:00 amORD - SFO
1 stop10h 01mHawaiian Airlines
mié. 12/37:00 amSFO - ORD
1 stop14h 50mHawaiian Airlines
Deal found 11/2$262
This Alaska Airlines deal was found by Cheapflights users on 11/3. 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. 12/28:59 pmORD - SFO
1 stop16h 04mAlaska Airlines
dom. 12/77:00 amSFO - ORD
1 stop14h 50mAlaska Airlines
Deal found 11/3$263
This Priceline deal was found by Cheapflights users on 11/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/141:37 pmMDW - SFO
1 stop9h 34mFrontier
lun. 11/1710:23 pmSFO - MDW
1 stop11h 15mFrontier
Deal found 11/3$264

Cheap flight deals from Chicago to San Francisco Bay Area

Keep the following information in mind while searching for Chicago to San Francisco Bay Area flight deals. Data was last updated noviembre 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$233
(Booking.com)

One-way from

$64
(Kiwi.com)

Popular in

November

Cheapest in

July

Average price

$387
Provider with most accurate pricing for Chicago (CHI)-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-San Francisco flights.
Search Deals
From Chicago (CHI) to San Francisco Bay Area
Search Deals
One-way flight from Chicago (CHI) to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to San Francisco Bay Area 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 noviembre 3, 2025.
Use the filters below to find and compare flights from Chicago to San Francisco Bay Area that are best for you.

Fly from

Chicago

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

sáb. 1/24

9:00 am-10:35 pm

1 stop15h 35m

San Jose

vie. 1/30

5:45 pm-11:37 pm

1 stop27h 52m

$262

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

mié. 12/17

8:55 am-5:24 pm

2 stops10h 29m

San Francisco

mié. 1/7

10:12 am-11:37 pm

1 stop11h 25m

$266

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

mar. 12/9

8:55 am-2:32 pm

1 stop7h 37m

San Jose

jue. 12/11

7:00 am-11:50 pm

1 stop14h 50m

$270

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

vie. 12/5

3:05 pm-10:42 pm

1 stop9h 37m

San Jose

mar. 12/9

12:35 pm-11:50 pm

1 stop9h 15m

$270

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

vie. 1/30

8:00 am-5:59 pm

1 stop11h 59m

San Francisco

mar. 2/3

11:41 am-11:37 pm

1 stop9h 56m

$272

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

sáb. 1/24

9:00 am-9:55 pm

2 stops14h 55m

San Francisco

dom. 2/1

7:00 am-11:50 pm

1 stop14h 50m

$278

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

mar. 1/6

2:20 pm-10:54 pm

1 stop10h 34m

San Francisco

sáb. 1/10

2:39 pm-11:53 pm

1 stop7h 14m

$283

ChicagoOakland

ORD - OAK

ORDOAK

Chicago O'Hare Intl

jue. 1/15

8:00 am-4:23 pm

1 stop10h 23m

Oakland

dom. 1/25

5:17 pm-11:50 pm

1 stop28h 33m

$283

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

mié. 12/17

8:55 am-2:32 pm

1 stop7h 37m

San Jose

dom. 1/11

3:36 pm-1:10 pm

2 stops19h 34m

$286

ChicagoSanta Rosa

ORD - STS

ORDSTS

Chicago O'Hare Intl

lun. 3/2

2:59 pm-11:07 am

1 stop22h 08m

Santa Rosa Sonoma County

vie. 3/6

6:58 am-1:59 pm

1 stop29h 01m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area 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.

Cheapflights Insights

Everything you need to know about your flight from Chicago to San Francisco Bay Area

What is the cheapest month to book a flight from Chicago to San Francisco Bay Area?

Currently, October is the cheapest month in which you can book a flight from Chicago to San Francisco Bay Area (average of $80). Flying from Chicago to San Francisco Bay Area in December is currently the most expensive (average of $203). 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 XIH?

Find hourly flight availability from Chicago to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 3, 2025.

A simple way to save on the total cost of your ticket is to fly from Chicago to San Francisco Bay Area at noon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Chicago to San Francisco Bay Area?

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

Travelers seeking maximum savings on their Chicago to San Francisco Bay Area flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to San Francisco Bay Area

Explore weekly flight availability from Chicago to San Francisco Bay Area. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated noviembre 3, 2025.

The most flights from CHI to zzXIH are scheduled on a Sunday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 San Francisco Bay Area. Reviews last updated noviembre 3, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and United Airlines from Chicago to San Francisco Bay Area. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,235 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,235 reviews
Alaska Airlines
8.0
Very good
11,235 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
11,235 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,997 reviews
Alaska Airlines
8.0
Very good
11,235 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,036 reviews
Alaska Airlines
8.0
Very good
11,235 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,117 reviews
Alaska Airlines
8.0
Very good
11,235 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

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

  • How long is the flight from Chicago to San Francisco Bay Area?

    A quick flight from Chicago to San Francisco Bay Area can take about 8h 05m. Alaska Airlines provides one of the quickest options available for as low as $324. Airlines will cover a distance of 1849 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Chicago to San Francisco Bay Area one-way?

    The cheapest airlines for a one-way flight from Chicago to San Francisco Bay Area are Alaska Airlines ($129), Delta ($142), and Southwest ($150).

  • What are the most popular routes from Chicago to San Francisco Bay Area?

    When deciding which route to take from Chicago to San Francisco Bay Area consider Chicago O'Hare Intl - San Francisco, Chicago Midway - San Francisco or Chicago O'Hare Intl - San Jose as they are the most popular.

  • What are the most reliable airlines from Chicago to San Francisco Bay Area?

    Consider ANA (90%), Air China (86%) or Qantas Airways (82%) when booking your flight. These represent the most reliable airlines when flying from Chicago to San Francisco Bay Area.

  • What are the cheapest flights from Chicago to San Francisco Bay Area?

    Looking for the cheapest flight from Chicago to San Francisco Bay Area? While on average our users pay $1,293, our data indicates the cheapest price to be $134. The most popular route (Chicago O'Hare Intl - San Francisco), is priced around $157.

  • Can I find deals for flights from Chicago to San Francisco Bay Area that include hotel bookings?

    Yes. In addition to deals on Chicago to San Francisco Bay Area flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to San Francisco Bay Area?

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

  • Can I find deals for business class flights from Chicago to San Francisco Bay Area?

    Yes. Cheapflights offers flight deals from Chicago to San Francisco Bay Area 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 San Francisco Bay Area?

    Currently, October is the cheapest month in which you can book a flight from Chicago to San Francisco Bay Area (average of $80). Flying from Chicago to San Francisco Bay Area in December is currently the most expensive (average of $203). 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 San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Chicago to San Francisco Bay Area

Discover the top 9 airlines that operate flights from Chicago to San Francisco Bay Area. 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 noviembre 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$80Average$260FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$83Average$227FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$108Average$382FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$112Average$375FlexibilityNo cancel feeOn-time83%
DeltaCheapest$128Average$359FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$138Average$433FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$188Average$324FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$197Average$557FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$204Average$433FlexibilityNo cancel feeOn-time69%

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