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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from $128

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 2/14. 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
3:22 pm - 12:28 am
ORD
-
SFO
11h 06m
2 stops
Multiple Airlines Logo
10:58 pm - 11:14 am
SFO
-
ORD
10h 16m
1 stop
$241Multiple Airlines
Fri, Feb 6 - Tue, Feb 10
Multiple Airlines Logo
9:38 pm - 9:53 am
ORD
-
SFO
14h 15m
1 stop
Multiple Airlines Logo
2:52 pm - 11:37 pm
SFO
-
ORD
6h 45m
1 stop
$242Multiple Airlines
Sun, Jan 25 - Tue, Feb 3
Frontier Logo
12:36 pm - 9:39 pm
ORD
-
SFO
11h 03m
1 stop
Frontier Logo
10:58 pm - 10:46 am
SFO
-
ORD
9h 48m
1 stop
$243Frontier
Wed, Feb 11 - Fri, Feb 13
Frontier Logo
7:00 am - 5:46 pm
ORD
-
SFO
12h 46m
1 stop
Frontier Logo
9:04 pm - 1:07 am
SFO
-
ORD
26h 03m
1 stop
$244Frontier
Fri, Mar 13 - Sun, Mar 15
Frontier Logo
5:11 am - 3:26 pm
ORD
-
SFO
12h 15m
1 stop
Frontier Logo
10:14 pm - 11:40 am
SFO
-
ORD
11h 26m
1 stop
$245Frontier
Fri, Mar 20 - Tue, Mar 24
Multiple Airlines Logo
11:51 am - 9:39 pm
ORD
-
SFO
11h 48m
1 stop
Multiple Airlines Logo
9:06 am - 7:19 pm
SFO
-
ORD
8h 13m
1 stop
$246Multiple Airlines
Tue, Feb 10 - Thu, Jun 11
Multiple Airlines Logo
9:38 pm - 10:08 am
ORD
-
SFO
14h 30m
1 stop
Multiple Airlines Logo
7:00 am - 5:10 pm
SFO
-
ORD
8h 10m
1 stop
$247Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Frontier Logo
12:53 pm - 12:28 am
ORD
-
SFO
13h 35m
1 stop
Frontier Logo
11:09 pm - 10:46 am
SFO
-
ORD
9h 37m
1 stop
$248Frontier
Fri, Feb 13 - Thu, Feb 19
Alaska Airlines Logo
3:44 pm - 10:47 pm
ORD
-
SFO
9h 03m
1 stop
Alaska Airlines Logo
7:00 am - 5:10 pm
SFO
-
ORD
8h 10m
1 stop
$249Alaska Airlines
Tue, Feb 3 - Fri, Feb 6
Alaska Airlines Logo
4:10 pm - 10:52 pm
ORD
-
SFO
8h 42m
1 stop
Alaska Airlines Logo
6:35 am - 11:59 pm
SFO
-
ORD
15h 24m
1 stop
$250Alaska Airlines
Tue, Apr 7 - Thu, Apr 16

Delta flights from Chicago O'Hare Intl Airport to San Francisco

Our best Delta deals on Chicago O'Hare Intl Airport to San Francisco flight tickets
Delta
Apr 15
ORD8:55 amChicago O'Hare Intl
8h 00m
1 stop
SFO2:55 pmSan Francisco
Apr 18
SFO1:20 pmSan Francisco
6h 15m
1 stop
ORD9:35 pmChicago O'Hare Intl
$257
Delta
Mar 14
ORD5:00 pmChicago O'Hare Intl
7h 15m
1 stop
SFO10:15 pmSan Francisco
Mar 20
SFO10:40 pmSan Francisco
8h 30m
1 stop
ORD9:10 amChicago O'Hare Intl
$270
Delta
Mar 6
ORD2:20 pmChicago O'Hare Intl
10h 44m
2 stops
SFO11:04 pmSan Francisco
Mar 10
SFO10:35 pmSan Francisco
7h 55m
1 stop
ORD8:30 amChicago O'Hare Intl
$275

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

Our best United Airlines deals on Chicago O'Hare Intl Airport to San Francisco flight tickets
United Airlines
Feb 14
ORD6:17 pmChicago O'Hare Intl
5h 03m
SFO9:20 pmSan Francisco
Feb 21
SFO1:35 pmSan Francisco
4h 12m
ORD7:47 pmChicago O'Hare Intl
$255
United Airlines
Feb 14
ORD6:17 pmChicago O'Hare Intl
5h 03m
SFO9:20 pmSan Francisco
Feb 15
SFO6:45 amSan Francisco
4h 21m
ORD1:06 pmChicago O'Hare Intl
$269
United Airlines
Feb 4
ORD4:16 pmChicago O'Hare Intl
4h 53m
SFO7:09 pmSan Francisco
Feb 9
SFO11:15 pmSan Francisco
4h 29m
ORD5:44 amChicago O'Hare Intl
$271

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 January 14, 2026.
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

Fri 2/6

3:22 pm-12:28 am

2 stops11h 06m

San Francisco

Tue 2/10

10:58 pm-11:14 am

1 stop10h 16m

$241

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 1/25

9:38 pm-9:53 am

1 stop14h 15m

San Francisco

Tue 2/3

2:52 pm-11:37 pm

1 stop6h 45m

$242

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 2/11

12:36 pm-9:39 pm

1 stop11h 03m

San Francisco

Fri 2/13

10:58 pm-10:46 am

1 stop9h 48m

$243

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 3/13

7:00 am-5:46 pm

1 stop12h 46m

San Francisco

Sun 3/15

9:04 pm-1:07 am

1 stop26h 03m

$244

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 3/20

5:11 am-3:26 pm

1 stop12h 15m

San Francisco

Tue 3/24

10:14 pm-11:40 am

1 stop11h 26m

$245

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 2/10

11:51 am-9:39 pm

1 stop11h 48m

San Francisco

Thu 6/11

9:06 am-7:19 pm

1 stop8h 13m

$246

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 1/30

9:38 pm-10:08 am

1 stop14h 30m

San Francisco

Fri 2/6

7:00 am-5:10 pm

1 stop8h 10m

$247

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 2/13

12:53 pm-12:28 am

1 stop13h 35m

San Francisco

Thu 2/19

11:09 pm-10:46 am

1 stop9h 37m

$248

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 2/3

3:44 pm-10:47 pm

1 stop9h 03m

San Francisco

Fri 2/6

7:00 am-5:10 pm

1 stop8h 10m

$249

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 4/7

4:10 pm-10:52 pm

1 stop8h 42m

San Francisco

Thu 4/16

6:35 am-11:59 pm

1 stop15h 24m

$250

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 April, then flying in May 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 $352. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $544.

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 $380. Flights in the afternoon are often more expensive with an average ticket price of $500.

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 $331 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 $273 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?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to San Francisco.

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

As of January 2026, prices for Chicago O'Hare Intl Airport to San Francisco flights are approximately 16% more expensive 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

$211

Fastest flight time

4h 43m

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 $211. The best round-trip flight deal from Chicago O'Hare Intl Airport to San Francisco found on momondo in the last 72 hours is $333.
The fastest flight from Chicago O'Hare Intl Airport to San Francisco takes 4h 43m
Direct flights go from Chicago O'Hare Intl Airport to San Francisco every day.
There is 1 airport in San Francisco. From Chicago O'Hare Intl Airport there are direct flights to 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 43m 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
2,827 reviews
Search Hawaiian Airlines flights
FrontierPriceFrom $129Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
SouthwestPriceFrom $138Free CancellationRating
8.0
4,258 reviews
Search Southwest flights
DeltaPriceFrom $159Free CancellationRating
7.9
8,044 reviews
Search Delta flights
JetBluePriceFrom $183Free CancellationRating
7.2
2,885 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $187Free CancellationRating
8.0
11,710 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
11,125 reviews
Search American Airlines flights
United AirlinesPriceFrom $206Free CancellationRating
7.4
9,159 reviews
Search United Airlines flights

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

    United Airlines flies from Chicago O'Hare Intl Airport to San Francisco around 55 times per week, with 9,156 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Chicago O'Hare Intl Airport to San Francisco in the last 72 hours was $206 (round-trip), much lower than the average airfare cost of $372 for United Airlines flights on this route.

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

    American Airlines is also a popular choice for this route. American Airlines flight deals for Chicago O'Hare Intl Airport to San Francisco start from as low as $197 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $311. American Airlines operates 8 flights to San Francisco from Chicago O'Hare Intl Airport in an average week. Users have rated it 7.2/10 across 11,119 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
Hayward
Calistoga
Big Sur
Santa Clara
Berkeley
Walnut Creek
Fremont
Half Moon Bay
Daly City
Vallejo
Livermore
Salinas
Sunnyvale
Turlock

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

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