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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from $126

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 3/6. 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
1:09 pm - 10:54 pm
ORD
-
SFO
11h 45m1 stop
Multiple Airlines Logo
11:20 pm - 11:35 am
SFO
-
ORD
10h 15m1 stop
$238Multiple Airlines
Tue, Jan 6 - Sat, Jan 10
Frontier Logo
7:41 pm - 12:28 am
ORD
-
SFO
6h 47m1 stop
Frontier Logo
6:15 am - 6:27 pm
SFO
-
ORD
34h 12m2 stops
$239Frontier
Thu, Jan 29 - Mon, Feb 2
Multiple Airlines Logo
3:33 pm - 11:54 pm
ORD
-
SFO
10h 21m1 stop
Multiple Airlines Logo
11:20 pm - 12:08 pm
SFO
-
ORD
10h 48m1 stop
$240Multiple Airlines
Tue, Jan 6 - Mon, Jan 12
Frontier Logo
7:41 pm - 12:28 am
ORD
-
SFO
6h 47m1 stop
Frontier Logo
6:15 am - 10:46 pm
SFO
-
ORD
14h 31m2 stops
$241Frontier
Thu, Jan 22 - Fri, Jan 23
Frontier Logo
10:41 pm - 10:08 am
ORD
-
SFO
13h 27m1 stop
Frontier Logo
7:00 am - 6:27 pm
SFO
-
ORD
33h 27m2 stops
$242Frontier
Fri, Jan 16 - Tue, Jan 20
Alaska Airlines Logo
3:44 pm - 10:47 pm
ORD
-
SFO
9h 03m1 stop
Alaska Airlines Logo
11:41 am - 11:37 pm
SFO
-
ORD
9h 56m1 stop
$243Alaska Airlines
Wed, Jan 7 - Mon, Jan 12
Multiple Airlines Logo
7:57 pm - 11:54 am
ORD
-
SFO
17h 57m2 stops
Multiple Airlines Logo
11:35 pm - 11:35 am
SFO
-
ORD
10h 00m1 stop
$244Multiple Airlines
Tue, Jan 6 - Sun, Jan 11
Frontier Logo
7:41 pm - 12:28 am
ORD
-
SFO
6h 47m1 stop
Frontier Logo
10:18 pm - 5:03 pm
SFO
-
ORD
40h 45m2 stops
$245Frontier
Thu, Feb 5 - Mon, Feb 9
Alaska Airlines Logo
3:44 pm - 10:47 pm
ORD
-
SFO
9h 03m1 stop
Alaska Airlines Logo
9:00 am - 11:50 pm
SFO
-
ORD
12h 50m1 stop
$246Alaska Airlines
Wed, Jan 7 - Fri, Jan 9
Multiple Airlines Logo
7:57 pm - 7:53 am
ORD
-
SFO
13h 56m1 stop
Multiple Airlines Logo
9:49 pm - 4:51 pm
SFO
-
ORD
17h 02m2 stops
$247Multiple Airlines
Wed, Jan 7 - Fri, Jan 23

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 7
ORD3:44 pmChicago O'Hare Intl
9h 03m
1 stop
SFO10:47 pmSan Francisco
Jan 12
SFO11:41 amSan Francisco
9h 56m
1 stop
ORD11:37 pmChicago O'Hare Intl
$243
Find similar
Alaska Airlines
Jan 17
ORD3:44 pmChicago O'Hare Intl
9h 03m
1 stop
SFO10:47 pmSan Francisco
Jan 24
SFO6:18 pmSan Francisco
16h 52m
2 stops
ORD1:10 pmChicago O'Hare Intl
$245
Find similar
Alaska Airlines
Jan 22
ORD3:35 pmChicago O'Hare Intl
8h 23m
1 stop
SFO9:58 pmSan Francisco
Jan 28
SFO11:41 amSan Francisco
9h 56m
1 stop
ORD11:37 pmChicago O'Hare Intl
$246
Find similar

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

Our best Frontier deals on Chicago O'Hare Intl Airport to San Francisco flight tickets
Frontier
Jan 14
ORD5:57 pmChicago O'Hare Intl
21h 27m
1 stop
SFO1:24 pmSan Francisco
Jan 20
SFO7:00 amSan Francisco
33h 27m
2 stops
ORD6:27 pmChicago O'Hare Intl
$240
Find similar
Frontier
Jan 16
ORD10:41 pmChicago O'Hare Intl
13h 27m
1 stop
SFO10:08 amSan Francisco
Jan 20
SFO7:00 amSan Francisco
33h 27m
2 stops
ORD6:27 pmChicago O'Hare Intl
$242
Find similar
Frontier
Mar 9
ORD5:11 amChicago O'Hare Intl
12h 15m
1 stop
SFO3:26 pmSan Francisco
Mar 16
SFO10:38 pmSan Francisco
10h 14m
1 stop
ORD10:52 amChicago O'Hare Intl
$251
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 December 11, 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

Tue 1/6

1:09 pm-10:54 pm

1 stop11h 45m

San Francisco

Sat 1/10

11:20 pm-11:35 am

1 stop10h 15m

$238

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 1/29

7:41 pm-12:28 am

1 stop6h 47m

San Francisco

Mon 2/2

6:15 am-6:27 pm

2 stops34h 12m

$239

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 1/6

3:33 pm-11:54 pm

1 stop10h 21m

San Francisco

Mon 1/12

11:20 pm-12:08 pm

1 stop10h 48m

$240

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 1/22

7:41 pm-12:28 am

1 stop6h 47m

San Francisco

Fri 1/23

6:15 am-10:46 pm

2 stops14h 31m

$241

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 1/16

10:41 pm-10:08 am

1 stop13h 27m

San Francisco

Tue 1/20

7:00 am-6:27 pm

2 stops33h 27m

$242

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 1/7

3:44 pm-10:47 pm

1 stop9h 03m

San Francisco

Mon 1/12

11:41 am-11:37 pm

1 stop9h 56m

$243

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 1/6

7:57 pm-11:54 am

2 stops17h 57m

San Francisco

Sun 1/11

11:35 pm-11:35 am

1 stop10h 00m

$244

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 2/5

7:41 pm-12:28 am

1 stop6h 47m

San Francisco

Mon 2/9

10:18 pm-5:03 pm

2 stops40h 45m

$245

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 1/7

3:44 pm-10:47 pm

1 stop9h 03m

San Francisco

Fri 1/9

9:00 am-11:50 pm

1 stop12h 50m

$246

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 1/7

7:57 pm-7:53 am

1 stop13h 56m

San Francisco

Fri 1/23

9:49 pm-4:51 pm

2 stops17h 02m

$247

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 typical price of a round-trip flight between Chicago O'Hare Intl Airport and San Francisco?

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 $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 $379. Flights in the afternoon are often more expensive with an average ticket price of $504.

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 $325 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 $277 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.

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

As of December 2025, prices for Chicago O'Hare Intl Airport to San Francisco flights are approximately 18% 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

$197

Fastest flight time

4h 44m

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 $197. The best round-trip flight deal from Chicago O'Hare Intl Airport to San Francisco found on momondo in the last 72 hours is $362.
The fastest flight from Chicago O'Hare Intl Airport to San Francisco takes 4h 44m
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 44m 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
2,817 reviews
Search Hawaiian Airlines flights
Sun Country AirPriceFrom $112Free CancellationRating
6.9
333 reviews
Search Sun Country Air flights
FrontierPriceFrom $121Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
8,005 reviews
Search Delta flights
SouthwestPriceFrom $138Free CancellationRating
7.9
4,253 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $188Free CancellationRating
8.0
11,431 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $205Free CancellationRating
7.4
9,095 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 4 times per week, with 4,253 momondo users rating the airline 7.9/10. 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 $334 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 $205 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $373. United Airlines operates 48 flights to San Francisco from Chicago O'Hare Intl Airport in an average week. Users have rated it 7.4/10 across 9,095 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
Big Sur
Calistoga
Santa Clara
Walnut Creek
Berkeley
Daly City
Fremont
Half Moon Bay
Vallejo
Salinas
Livermore
Turlock
Sunnyvale

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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