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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from $131

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 12/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Multiple Airlines Logo
7:57 pm - 7:48 amORD-SFO
37h 51m2 stops
Multiple Airlines Logo
11:20 pm - 10:49 amSFO-ORD
9h 29m1 stop
$247Multiple Airlines
Find Deal
Sat, Dec 20 - Sun, Jan 11
Multiple Airlines Logo
6:00 am - 3:46 pmORD-SFO
11h 46m1 stop
Multiple Airlines Logo
11:20 pm - 10:49 amSFO-ORD
9h 29m1 stop
$250Multiple Airlines
Find Deal
Fri, Dec 19 - Sun, Jan 11
Frontier Logo
6:00 am - 7:23 pmORD-SFO
15h 23m1 stop
Frontier Logo
6:32 am - 12:10 amSFO-ORD
15h 38m1 stop
$252Frontier
Find Deal
Sat, Nov 22 - Mon, Dec 1
Frontier Logo
6:00 am - 7:23 pmORD-SFO
15h 23m1 stop
Frontier Logo
2:54 pm - 12:10 amSFO-ORD
7h 16m1 stop
$254Frontier
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Sat, Nov 22 - Fri, Nov 28
Alaska Airlines Logo
3:49 pm - 8:47 amORD-SFO
18h 58m1 stop
Alaska Airlines Logo
10:30 am - 11:37 pmSFO-ORD
11h 07m2 stops
$258Alaska Airlines
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Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
10:35 am - 1:25 pmORD-SFO
4h 50mnonstop
United Airlines Logo
6:00 am - 12:24 pmSFO-ORD
4h 24mnonstop
$261United Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
Alaska Airlines Logo
8:55 am - 9:46 pmORD-SFO
14h 51m1 stop
Alaska Airlines Logo
12:56 pm - 6:29 amSFO-ORD
15h 33m1 stop
$262Alaska Airlines
Find Deal
Wed, Dec 17 - Mon, Jan 5
American Airlines Logo
11:45 am - 2:36 pmORD-SFO
4h 51mnonstop
American Airlines Logo
9:10 am - 9:07 pmSFO-ORD
9h 57m1 stop
$265American Airlines
Find Deal
Fri, Jan 9 - Tue, Jan 13
United Airlines Logo
6:15 am - 9:04 amORD-SFO
4h 49mnonstop
United Airlines Logo
1:35 pm - 7:51 pmSFO-ORD
4h 16mnonstop
$268United Airlines
Find Deal
Mon, Nov 24 - Tue, Jan 6
American Airlines Logo
8:35 am - 11:26 amORD-SFO
4h 51mnonstop
American Airlines Logo
9:15 am - 9:01 pmSFO-ORD
9h 46m1 stop
$295American Airlines
Find Deal
Thu, Dec 4 - Tue, Dec 9

Alaska Airlines flights from Chicago O'Hare Intl Airport to San Francisco

Our best Alaska Airlines deals on Chicago O'Hare Intl Airport to San Francisco flight tickets
Alaska Airlines
Jan 30
ORD3:49 pmChicago O'Hare Intl
18h 58m
1 stop
SFO8:47 amSan Francisco
Feb 3
SFO10:30 amSan Francisco
11h 07m
2 stops
ORD11:37 pmChicago O'Hare Intl
$258
Find similar
Alaska Airlines
Dec 17
ORD8:55 amChicago O'Hare Intl
14h 51m
1 stop
SFO9:46 pmSan Francisco
Jan 5
SFO12:56 pmSan Francisco
15h 33m
1 stop
ORD6:29 amChicago O'Hare Intl
$262
Find similar
Alaska Airlines
Dec 24
ORD6:08 pmChicago O'Hare Intl
17h 25m
1 stop
SFO9:33 amSan Francisco
Jan 19
SFO8:20 amSan Francisco
28h 09m
1 stop
ORD2:29 pmChicago O'Hare Intl
$267
Find similar

American Airlines flights from Chicago O'Hare Intl Airport to San Francisco

Our best American Airlines deals on Chicago O'Hare Intl Airport to San Francisco flight tickets
American Airlines
Jan 9
ORD11:45 amChicago O'Hare Intl
4h 51m
SFO2:36 pmSan Francisco
Jan 13
SFO9:10 amSan Francisco
9h 57m
1 stop
ORD9:07 pmChicago O'Hare Intl
$265
Find similar
American Airlines
Dec 4
ORD8:35 amChicago O'Hare Intl
4h 51m
SFO11:26 amSan Francisco
Dec 9
SFO9:15 amSan Francisco
9h 46m
1 stop
ORD9:01 pmChicago O'Hare Intl
$295
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 November 6, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 12/20

7:57 pm-7:48 am

2 stops37h 51m

San Francisco

Sun 1/11

11:20 pm-10:49 am

1 stop9h 29m

$247

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 12/19

6:00 am-3:46 pm

1 stop11h 46m

San Francisco

Sun 1/11

11:20 pm-10:49 am

1 stop9h 29m

$250

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 11/22

6:00 am-7:23 pm

1 stop15h 23m

San Francisco

Mon 12/1

6:32 am-12:10 am

1 stop15h 38m

$252

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 11/22

6:00 am-7:23 pm

1 stop15h 23m

San Francisco

Fri 11/28

2:54 pm-12:10 am

1 stop7h 16m

$254

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 1/30

3:49 pm-8:47 am

1 stop18h 58m

San Francisco

Tue 2/3

10:30 am-11:37 pm

2 stops11h 07m

$258

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 11/27

10:35 am-1:25 pm

Nonstop4h 50m

San Francisco

Thu 12/4

6:00 am-12:24 pm

Nonstop4h 24m

$261

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 12/17

8:55 am-9:46 pm

1 stop14h 51m

San Francisco

Mon 1/5

12:56 pm-6:29 am

1 stop15h 33m

$262

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 1/9

11:45 am-2:36 pm

Nonstop4h 51m

San Francisco

Tue 1/13

9:10 am-9:07 pm

1 stop9h 57m

$265

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 11/24

6:15 am-9:04 am

Nonstop4h 49m

San Francisco

Tue 1/6

1:35 pm-7:51 pm

Nonstop4h 16m

$268

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 12/4

8:35 am-11:26 am

Nonstop4h 51m

San Francisco

Tue 12/9

9:15 am-9:01 pm

1 stop9h 46m

$295

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See travel insights to San Francisco from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 May, then flying in April 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 O'Hare Intl Airport to San Francisco is on a Thursday when prices can be found for as low as $353. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $539.

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

Our data shows that the cheapest Chicago O'Hare Intl Airport 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 $373. Flights in the afternoon are often more expensive with an average ticket price of $487.

What is the cheapest Chicago O'Hare Intl to San Francisco flight route?

Fly from Chicago O'Hare Intl to San Francisco for the best Chicago O'Hare Intl - 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 O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $324 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 O'Hare Intl Airport for as low as $283 on momondo.

What cabin class options are available on Chicago O'Hare Intl to San Francisco flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl 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 O'Hare Intl Airport to San Francisco flights?

You could potentially save up to 6% on your flight if you consider stops on a Chicago O'Hare Intl Airport to San Francisco flight.

How have Chicago O'Hare Intl Airport to San Francisco flight prices changed over time?

As of November 2025, prices for Chicago O'Hare Intl Airport to San Francisco flights are approximately 12% cheaper when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to San Francisco 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 San Francisco (ORD to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to San Francisco

Best Price Found

$196

Fastest flight time

4h 45m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Chicago O'Hare Intl Airport in the past 72 hours is $196. The best round-trip flight deal from Chicago O'Hare Intl Airport to San Francisco found on momondo in the last 72 hours is $376.
The fastest flight from Chicago O'Hare Intl Airport to San Francisco takes 4h 45m
Direct flights go from Chicago O'Hare Intl Airport to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
Search flight deals

  • How far is Chicago O'Hare Intl to San Francisco by plane?

    The distance between Chicago O'Hare Intl and San Francisco is about 1838.3 mi. Typically, this will take 4h 49m by plane in normal conditions.

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

    Prices for flights from Chicago O'Hare Intl Airport to San Francisco Airport refresh daily.

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

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to San Francisco 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 San Francisco Airport.

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

    The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to San Francisco?

  • What is the most popular airline from Chicago O'Hare Intl Airport to San Francisco?

Best airlines flying from Chicago O'Hare Intl Airport to San Francisco

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $108Free CancellationRating
7.8
2,804 reviews
Search Hawaiian Airlines flights
Sun Country AirPriceFrom $112Free CancellationRating
6.9
335 reviews
Search Sun Country Air flights
FrontierPriceFrom $124Free CancellationRating
5.8
3,116 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
8,001 reviews
Search Delta flights
SouthwestPriceFrom $138Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $192Free CancellationRating
8.0
11,246 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $203Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights

  • Southwest Flights From Chicago O'Hare Intl Airport to San Francisco

    Southwest flies from Chicago O'Hare Intl Airport to San Francisco around 2 times per week, with 4,241 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Chicago O'Hare Intl Airport to San Francisco in the last 72 hours was $138 (round-trip), much lower than the average airfare cost of $332 for Southwest flights on this route.

  • United Airlines Flights From Chicago O'Hare Intl Airport to San Francisco

    United Airlines is also a popular choice for this route. United Airlines flight deals for Chicago O'Hare Intl Airport to San Francisco start from as low as $203 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $373. United Airlines operates 46 flights to San Francisco from Chicago O'Hare Intl Airport in an average week. Users have rated it 7.4/10 across 9,007 reviews.

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
Bodega Bay
Roseville
Calistoga
Hayward
Big Sur
Santa Clara
Daly City
Fremont
Berkeley
Vallejo
Walnut Creek
Half Moon Bay
Salinas
Livermore
Turlock
South San Francisco

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?

Flights from Chicago to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to San Francisco.

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

Yes momondo offers price alerts on flights to San Francisco from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices 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.
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