Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago to San Francisco from $101

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 11/16. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Chicago to San Francisco

Cheap round-trip flights

Frontier Logo
5:20 pm - 4:00 pmMDW-SFO
24h 40m1 stop
Frontier Logo
8:21 pm - 12:24 amSFO-MDW
26h 03m1 stop
$208Frontier
Find Deal
Thu, Oct 16 - Sun, Oct 19
Multiple Airlines Logo
8:20 am - 2:01 pmORD-SFO
7h 41m1 stop
Multiple Airlines Logo
10:25 pm - 12:58 pmSFO-ORD
12h 33m1 stop
$208Multiple Airlines
Find Deal
Tue, Oct 21 - Sun, Oct 26
Frontier Logo
6:29 pm - 5:43 pmMDW-SFO
25h 14m2 stops
Frontier Logo
1:10 pm - 5:49 pmSFO-MDW
26h 39m1 stop
$209Frontier
Find Deal
Fri, Oct 31 - Sun, Nov 2
Multiple Airlines Logo
9:54 pm - 9:29 amORD-SFO
13h 35m1 stop
Multiple Airlines Logo
8:00 am - 7:34 pmSFO-ORD
9h 34m1 stop
$209Multiple Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28
Frontier Logo
6:24 pm - 12:14 amMDW-SFO
7h 50m1 stop
Frontier Logo
8:21 pm - 11:16 amSFO-MDW
12h 55m1 stop
$210Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26
Frontier Logo
12:28 pm - 9:23 pmORD-SFO
10h 55m1 stop
Frontier Logo
6:44 am - 11:53 pmSFO-ORD
15h 09m1 stop
$210Frontier
Find Deal
Fri, Oct 17 - Sat, Oct 25
Alaska Airlines Logo
7:59 pm - 9:10 amORD-SFO
15h 11m1 stop
Alaska Airlines Logo
7:00 am - 6:54 pmSFO-ORD
9h 54m1 stop
$218Alaska Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 16
Alaska Airlines Logo
3:05 pm - 9:46 pmORD-SFO
8h 41m1 stop
Alaska Airlines Logo
9:57 pm - 2:09 pmSFO-ORD
14h 12m1 stop
$241Alaska Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 15
Alaska Airlines Logo
3:50 pm - 9:06 amORD-SFO
19h 16m1 stop
Alaska Airlines Logo
10:26 am - 11:59 pmSFO-ORD
11h 33m1 stop
$248Alaska Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Alaska Airlines Logo
7:59 pm - 8:05 amORD-SFO
14h 06m1 stop
Alaska Airlines Logo
6:45 am - 11:59 pmSFO-ORD
15h 14m1 stop
$251Alaska Airlines
Find Deal
Wed, Oct 15 - Mon, Oct 20

Frontier flights from Chicago to San Francisco

Our best Frontier deals on Chicago to San Francisco flight tickets
Frontier
Oct 16
MDW5:20 pmChicago Midway
24h 40m
1 stop
SFO4:00 pmSan Francisco
Oct 19
SFO8:21 pmSan Francisco
26h 03m
1 stop
MDW12:24 amChicago Midway
$208
Find similar
Frontier
Oct 31
MDW6:29 pmChicago Midway
25h 14m
2 stops
SFO5:43 pmSan Francisco
Nov 2
SFO1:10 pmSan Francisco
26h 39m
1 stop
MDW5:49 pmChicago Midway
$209
Find similar
Frontier
Oct 23
MDW6:24 pmChicago Midway
7h 50m
1 stop
SFO12:14 amSan Francisco
Oct 26
SFO8:21 pmSan Francisco
12h 55m
1 stop
MDW11:16 amChicago Midway
$210
Find similar

Alaska Airlines flights from Chicago to San Francisco

Our best Alaska Airlines deals on Chicago to San Francisco flight tickets
Alaska Airlines
Dec 9
ORD7:59 pmChicago O'Hare Intl
15h 11m
1 stop
SFO9:10 amSan Francisco
Dec 16
SFO7:00 amSan Francisco
9h 54m
1 stop
ORD6:54 pmChicago O'Hare Intl
$218
Find similar
Alaska Airlines
Dec 12
ORD3:05 pmChicago O'Hare Intl
8h 41m
1 stop
SFO9:46 pmSan Francisco
Dec 15
SFO9:57 pmSan Francisco
14h 12m
1 stop
ORD2:09 pmChicago O'Hare Intl
$241
Find similar
Alaska Airlines
Oct 14
ORD3:50 pmChicago O'Hare Intl
19h 16m
1 stop
SFO9:06 amSan Francisco
Oct 21
SFO10:26 amSan Francisco
11h 33m
1 stop
ORD11:59 pmChicago O'Hare Intl
$248
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to San Francisco 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 September 17, 2025.
Use the filters below to find and compare flights from Chicago to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Thu 10/16

5:20 pm-4:00 pm

1 stop24h 40m

San Francisco

Sun 10/19

8:21 pm-12:24 am

1 stop26h 03m

$208

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 10/21

8:20 am-2:01 pm

1 stop7h 41m

San Francisco

Sun 10/26

10:25 pm-12:58 pm

1 stop12h 33m

$208

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Fri 10/31

6:29 pm-5:43 pm

2 stops25h 14m

San Francisco

Sun 11/2

1:10 pm-5:49 pm

1 stop26h 39m

$209

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 10/24

9:54 pm-9:29 am

1 stop13h 35m

San Francisco

Tue 10/28

8:00 am-7:34 pm

1 stop9h 34m

$209

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Thu 10/23

6:24 pm-12:14 am

1 stop7h 50m

San Francisco

Sun 10/26

8:21 pm-11:16 am

1 stop12h 55m

$210

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 10/17

12:28 pm-9:23 pm

1 stop10h 55m

San Francisco

Sat 10/25

6:44 am-11:53 pm

1 stop15h 09m

$210

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 12/9

7:59 pm-9:10 am

1 stop15h 11m

San Francisco

Tue 12/16

7:00 am-6:54 pm

1 stop9h 54m

$218

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 12/12

3:05 pm-9:46 pm

1 stop8h 41m

San Francisco

Mon 12/15

9:57 pm-2:09 pm

1 stop14h 12m

$241

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 10/14

3:50 pm-9:06 am

1 stop19h 16m

San Francisco

Tue 10/21

10:26 am-11:59 pm

1 stop11h 33m

$248

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 10/15

7:59 pm-8:05 am

1 stop14h 06m

San Francisco

Mon 10/20

6:45 am-11:59 pm

1 stop15h 14m

$251

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Francisco from

How to get the cheapest flight ticket from Chicago to San Francisco

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 cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of July, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $288.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Chicago to San Francisco is on a Thursday when prices can be found for as low as $348. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $527.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Chicago to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $374. Flights in the afternoon are often more expensive with an average ticket price of $457.

What is the cheapest Chicago to San Francisco flight route?

Fly from Chicago O'Hare Intl to San Francisco for the best Chicago - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $314 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Chicago for as low as $272 on momondo.

What cabin class options are available on Chicago to San Francisco flights?

There are 4 cabin classes available to choose from on Chicago to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago to San Francisco flights?

No. A direct flight is the cheapest option for a flight between Chicago to San Francisco.

How have Chicago to San Francisco flight prices changed over time?

As of September 2025, prices for Chicago to San Francisco flights are approximately 39% more expensive when compared to flights at the same time last year.

When to book flights from Chicago to San Francisco

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

Cheap Chicago to San Francisco (CHI to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to San Francisco

Best Price Found

$159

Fastest flight time

4h 30m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Chicago in the past 72 hours is $159. The best round-trip flight deal from Chicago to San Francisco found on momondo in the last 72 hours is $298.
The fastest flight from Chicago to San Francisco takes 4h 30m
Direct flights go from Chicago to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
Search flight deals

  • How far is Chicago to San Francisco by plane?

    San Francisco is 1852.8 mi away from Chicago. Typically, this will take 7h 01m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago to San Francisco Airport?

    Prices for flights from Chicago to San Francisco Airport refresh daily.

  • How many operators does momondo search for flights from Chicago to San Francisco Airport?

  • How old do you have to be to fly from Chicago to San Francisco 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 San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to San Francisco?

  • What is the most popular airline from Chicago to San Francisco?

Best airlines flying from Chicago to San Francisco

Compare and see reviews for airlines that fly from Chicago to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $108Free CancellationRating
7.8
2,729 reviews
Search Hawaiian Airlines flights
Sun Country AirPriceFrom $112Free CancellationRating
6.9
330 reviews
Search Sun Country Air flights
FrontierPriceFrom $123Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
7,961 reviews
Search Delta flights
SouthwestPriceFrom $180Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $188Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $204Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

  • Southwest Flights From Chicago to San Francisco

    Southwest operates around 11 flights from Chicago to San Francisco every week. The average price of these flights found in the last 72 hours has been $379, but momondo users have found Southwest deals from Chicago to San Francisco from as low as $180 round-trip. Southwest has been scored 8.0/10 in 4,242 reviews.

  • United Airlines Flights From Chicago to San Francisco

    $204 is the best United Airlines flight deal from Chicago to San Francisco found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $392, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,926 user reviews) flies into San Francisco from Chicago 63 times in an average week so prices can vary.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Calistoga
Bodega Bay
Roseville
Hayward
Big Sur
Santa Clara
Daly City
Fremont
Berkeley
Half Moon Bay
Walnut Creek
Vallejo
Redwood City
Salinas
South San Francisco
Fairfield

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to San Francisco?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Chicago.

Can I find flights from Chicago to San Francisco with flexible booking policies on momondo?

Yes. All flights to San Francisco from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to San Francisco?

Once you have performed a search for Chicago to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to San Francisco right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Chicago to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

An easier way to manage your San Francisco 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 10/17
Fri 10/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States