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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from $117

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 10/31. 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.
Frontier Logo
11:24 am - 9:11 pmORD-SFO
11h 47m1 stop
Frontier Logo
10:23 pm - 10:41 amSFO-ORD
10h 18m1 stop
$234Frontier
Find Deal
Fri, Nov 14 - Sun, Nov 16
Frontier Logo
6:30 am - 9:05 pmORD-SFO
16h 35m1 stop
Frontier Logo
6:34 am - 11:00 pmSFO-ORD
14h 26m2 stops
$235Frontier
Find Deal
Fri, Oct 31 - Sat, Nov 8
Frontier Logo
7:14 am - 10:27 pmORD-SFO
17h 13m1 stop
Frontier Logo
6:34 am - 12:16 amSFO-ORD
15h 42m1 stop
$236Frontier
Find Deal
Tue, Oct 28 - Fri, Oct 31
Multiple Airlines Logo
8:00 am - 1:50 pmORD-SFO
7h 50m1 stop
Multiple Airlines Logo
6:21 am - 6:34 pmSFO-ORD
10h 13m1 stop
$237Multiple Airlines
Find Deal
Thu, Nov 20 - Thu, Dec 4
Alaska Airlines Logo
9:20 am - 10:01 pmORD-SFO
14h 41m1 stop
Alaska Airlines Logo
7:00 am - 11:50 pmSFO-ORD
14h 50m1 stop
$238Alaska Airlines
Find Deal
Tue, Nov 18 - Tue, Dec 2
Alaska Airlines Logo
8:59 pm - 8:06 amORD-SFO
13h 07m1 stop
Alaska Airlines Logo
7:40 pm - 11:55 pmSFO-ORD
26h 15m1 stop
$241Alaska Airlines
Find Deal
Tue, Dec 16 - Sun, Jan 11
Delta Logo
4:01 pm - 9:20 pmORD-SFO
7h 19m1 stop
Delta Logo
12:10 am - 9:25 amSFO-ORD
7h 15m1 stop
$253Delta
Find Deal
Wed, Dec 24 - Tue, Dec 30
Delta Logo
4:01 pm - 9:20 pmORD-SFO
7h 19m1 stop
Delta Logo
12:10 am - 9:25 amSFO-ORD
7h 15m1 stop
$257Delta
Find Deal
Wed, Dec 24 - Tue, Dec 30
Sun Country Air Logo
10:51 am - 10:54 pmORD-SFO
14h 03m1 stop
Sun Country Air Logo
11:59 pm - 6:38 pmSFO-ORD
16h 39m1 stop
$275Sun Country Air
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Mon, Dec 22 - Sun, Dec 28
United Airlines Logo
7:10 am - 9:55 amORD-SFO
4h 45mnonstop
United Airlines Logo
4:50 pm - 11:10 pmSFO-ORD
4h 20mnonstop
$277United Airlines
Find Deal
Tue, Nov 18 - Tue, Nov 18

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
Nov 18
ORD9:20 amChicago O'Hare Intl
14h 41m
1 stop
SFO10:01 pmSan Francisco
Dec 2
SFO7:00 amSan Francisco
14h 50m
1 stop
ORD11:50 pmChicago O'Hare Intl
$238
Find similar
Alaska Airlines
Dec 16
ORD8:59 pmChicago O'Hare Intl
13h 07m
1 stop
SFO8:06 amSan Francisco
Jan 11
SFO7:40 pmSan Francisco
26h 15m
1 stop
ORD11:55 pmChicago O'Hare Intl
$241
Find similar
Alaska Airlines
Jan 10
ORD3:25 pmChicago O'Hare Intl
8h 10m
1 stop
SFO9:35 pmSan Francisco
Jan 12
SFO2:52 pmSan Francisco
21h 37m
1 stop
ORD2:29 pmChicago O'Hare Intl
$242
Find similar

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
Dec 24
ORD4:01 pmChicago O'Hare Intl
7h 19m
1 stop
SFO9:20 pmSan Francisco
Dec 30
SFO12:10 amSan Francisco
7h 15m
1 stop
ORD9:25 amChicago O'Hare Intl
$253
Find similar
Delta
Dec 24
ORD4:01 pmChicago O'Hare Intl
7h 19m
1 stop
SFO9:20 pmSan Francisco
Dec 30
SFO12:10 amSan Francisco
7h 15m
1 stop
ORD9:25 amChicago O'Hare Intl
$257
Find similar
Delta
Mar 5
ORD7:30 amChicago O'Hare Intl
7h 47m
1 stop
SFO1:17 pmSan Francisco
Mar 9
SFO1:59 pmSan Francisco
7h 45m
1 stop
ORD11:44 pmChicago O'Hare Intl
$263
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 October 16, 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

Fri 11/14

11:24 am-9:11 pm

1 stop11h 47m

San Francisco

Sun 11/16

10:23 pm-10:41 am

1 stop10h 18m

$234

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 10/31

6:30 am-9:05 pm

1 stop16h 35m

San Francisco

Sat 11/8

6:34 am-11:00 pm

2 stops14h 26m

$235

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 10/28

7:14 am-10:27 pm

1 stop17h 13m

San Francisco

Fri 10/31

6:34 am-12:16 am

1 stop15h 42m

$236

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 11/20

8:00 am-1:50 pm

1 stop7h 50m

San Francisco

Thu 12/4

6:21 am-6:34 pm

1 stop10h 13m

$237

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 11/18

9:20 am-10:01 pm

1 stop14h 41m

San Francisco

Tue 12/2

7:00 am-11:50 pm

1 stop14h 50m

$238

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 12/16

8:59 pm-8:06 am

1 stop13h 07m

San Francisco

Sun 1/11

7:40 pm-11:55 pm

1 stop26h 15m

$241

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 12/24

4:01 pm-9:20 pm

1 stop7h 19m

San Francisco

Tue 12/30

12:10 am-9:25 am

1 stop7h 15m

$253

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 12/24

4:01 pm-9:20 pm

1 stop7h 19m

San Francisco

Tue 12/30

12:10 am-9:25 am

1 stop7h 15m

$257

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 12/22

10:51 am-10:54 pm

1 stop14h 03m

San Francisco

Sun 12/28

11:59 pm-6:38 pm

1 stop16h 39m

$275

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 11/18

7:10 am-9:55 am

Nonstop4h 45m

San Francisco

Tue 11/18

4:50 pm-11:10 pm

Nonstop4h 20m

$277

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 $287.

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 $351. 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 $377. Flights in the afternoon are often more expensive with an average ticket price of $476.

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 $321 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 20% 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 October 2025, prices for Chicago O'Hare Intl Airport to San Francisco flights are approximately 6% 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

$193

Fastest flight time

4h 41m

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 $193. The best round-trip flight deal from Chicago O'Hare Intl Airport to San Francisco found on momondo in the last 72 hours is $340.
The fastest flight from Chicago O'Hare Intl Airport to San Francisco takes 4h 41m
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 45m 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
2,781 reviews
Search Hawaiian Airlines flights
Sun Country AirPriceFrom $112Free CancellationRating
6.9
335 reviews
Search Sun Country Air flights
FrontierPriceFrom $123Free CancellationRating
5.8
3,135 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
7,980 reviews
Search Delta flights
SouthwestPriceFrom $138Free CancellationRating
8.0
4,239 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $188Free CancellationRating
8.0
11,098 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
11,041 reviews
Search American Airlines flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
8,980 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 68 times per week, with 8,980 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 $202 (round-trip), much lower than the average airfare cost of $369 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 $308. American Airlines operates 40 flights to San Francisco from Chicago O'Hare Intl Airport in an average week. Users have rated it 7.2/10 across 11,041 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
Calistoga
Roseville
Hayward
Big Sur
Santa Clara
Fremont
Daly City
Berkeley
Vallejo
Walnut Creek
Half Moon Bay
Salinas
Turlock
South San Francisco
Pacific Grove

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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