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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from C$ 231

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
24 Aug — 31 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from O'Hare Intl to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to San Francisco
Explore the most affordable flight options available from O'Hare Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 July 2026.

Fri 30/102:45 p.m.
ORD
-
SFO
1 stop9h 30m
Delta
Mon 2/1110:59 p.m.
SFO
-
ORD
1 stop9h 12m
Delta
Deal found 25/7C$ 383
Mon 17/86:00 a.m.
ORD
-
SFO
Nonstop4h 38m
United Airlines
Thu 20/84:30 p.m.
SFO
-
ORD
Nonstop4h 29m
United Airlines
Deal found 22/7C$ 390
Sun 6/97:00 a.m.
ORD
-
SFO
1 stop7h 57m
Delta
Sat 5/1210:30 p.m.
SFO
-
ORD
1 stop9h 37m
Delta
Deal found 21/7C$ 399
Wed 18/1111:51 a.m.
ORD
-
SFO
Nonstop4h 50m
United Airlines
Wed 25/1111:30 p.m.
SFO
-
ORD
Nonstop4h 17m
United Airlines
Deal found 20/7C$ 403
Thu 13/86:20 a.m.
ORD
-
SFO
1 stop8h 31m
Alaska Airlines
Wed 19/810:32 a.m.
SFO
-
ORD
1 stop6h 49m
Alaska Airlines
Deal found 23/7C$ 404
Wed 9/125:55 p.m.
ORD
-
SFO
1 stop8h 20m
Delta
Wed 6/110:00 a.m.
SFO
-
ORD
1 stop5h 57m
Delta
Deal found 20/7C$ 407
Sat 15/87:40 a.m.
ORD
-
SFO
Nonstop4h 49m
United Airlines
Sat 19/1211:45 p.m.
SFO
-
ORD
Nonstop4h 24m
United Airlines
Deal found 23/7C$ 410
Fri 28/82:35 p.m.
ORD
-
SFO
Nonstop4h 48m
United Airlines
Mon 7/911:30 p.m.
SFO
-
ORD
Nonstop4h 29m
United Airlines
Deal found 21/7C$ 416
Thu 3/98:17 p.m.
ORD
-
SFO
1 stop14h 29m
Alaska Airlines
Sun 6/95:19 p.m.
SFO
-
ORD
1 stop18h 03m
Alaska Airlines
Deal found 24/7C$ 417
Sat 12/93:55 p.m.
ORD
-
SFO
1 stop6h 37m
Delta
Wed 16/910:59 p.m.
SFO
-
ORD
1 stop6h 57m
Delta
Deal found 21/7C$ 421
Fri 4/94:25 p.m.
ORD
-
SFO
Nonstop4h 52m
United Airlines
Mon 7/910:35 p.m.
SFO
-
ORD
Nonstop4h 29m
United Airlines
Deal found 22/7C$ 423
Thu 20/87:22 a.m.
ORD
-
SFO
Nonstop4h 41m
American Airlines
Thu 27/83:46 p.m.
SFO
-
ORD
1 stop6h 42m
American Airlines
Deal found 23/7C$ 424

Find flight deals from O'Hare Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 July 2026.

Round-trip from

C$ 383

One-way from

C$ 231

Popular in

June

Cheapest in

September

Average price

C$ 606
Delta
  • Delta
  • 30/10-2/11
  • 2 total stops
  • 18h 42m total
  • Chicago to San Francisco
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 12/10
  • 1 total stop
  • 15h 48m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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, Cheapflights users made 629,999 searches. Data last updated 25 July 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

Cheapest round-trip
Quickest round-trip

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 23/10

3:35 p.m.-6:24 p.m.

Nonstop4h 49m

San Francisco

Mon 26/10

5:10 p.m.-11:27 p.m.

Nonstop4h 17m

C$ 423

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 19/8

3:35 p.m.-6:24 p.m.

Nonstop4h 49m

San Francisco

Wed 26/8

2:05 p.m.-8:40 p.m.

Nonstop4h 35m

C$ 475

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 13/8

2:35 p.m.-5:23 p.m.

Nonstop4h 48m

San Francisco

Wed 19/8

4:29 p.m.-10:59 p.m.

Nonstop4h 30m

C$ 476

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 14/8

12:51 p.m.-3:35 p.m.

Nonstop4h 44m

San Francisco

Thu 27/8

11:30 p.m.-5:59 a.m.

Nonstop4h 29m

C$ 530

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 16/10

4:05 p.m.-6:54 p.m.

Nonstop4h 49m

San Francisco

Sat 24/10

6:38 p.m.-12:59 a.m.

Nonstop4h 21m

C$ 552

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 22/11

12:40 p.m.-8:02 p.m.

1 stop9h 22m

San Francisco

Fri 27/11

1:00 p.m.-11:30 p.m.

1 stop8h 30m

C$ 563

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 25/8

5:00 a.m.-10:07 a.m.

1 stop7h 07m

San Francisco

Tue 25/8

2:48 p.m.-9:35 p.m.

Nonstop4h 47m

C$ 580

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 14/12

9:40 p.m.-12:36 a.m.

Nonstop4h 56m

San Francisco

Fri 1/1

12:55 a.m.-7:24 a.m.

Nonstop4h 29m

C$ 600

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 3/1

6:00 a.m.-9:01 a.m.

Nonstop5h 01m

San Francisco

Sun 10/1

11:30 p.m.-5:47 a.m.

Nonstop4h 17m

C$ 649

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 24/12

9:49 p.m.-12:57 a.m.

Nonstop5h 08m

San Francisco

Sun 3/1

11:45 p.m.-6:09 a.m.

Nonstop4h 24m

C$ 656

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/7

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from O'Hare Intl to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to San Francisco

How far ahead should I book a flight from Chicago O'Hare Intl Airport to San Francisco?

The best time to book flights from Chicago O'Hare Intl Airport to San Francisco is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Francisco?

Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of C$ 470). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of C$ 673). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to SFO?

Find hourly flight availability from O'Hare Intl to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 July 2026.

When flying from Chicago O'Hare Intl Airport to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to San Francisco?

Airfare is below average for this route at the moment.

Chicago O'Hare Intl Airport to San Francisco flights typically cost between C$ 455 and C$ 742 in October.
The cheapest round-trip price found within the last 5 days was C$ 383 on Delta (30 Oct-2 Nov).

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Chicago O'Hare Intl?

    If you book a flight to San Francisco from Chicago O'Hare Intl, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 17.7 km from the centre of San Francisco. There are 76 flights from Chicago O'Hare Intl to San Francisco per day from 0 different airlines.

  • How long is the flight from Chicago O'Hare Intl Airport to San Francisco?

    There are many flights that can get you from Chicago O'Hare Intl Airport to San Francisco in 4h 49m. Fly via United Airlines to get the fastest option. Chicago O'Hare Intl Airport and San Francisco are separated by a distance of 2963 km. Generally, flights for this route are direct.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to San Francisco?

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to San Francisco are ANA (75%), Air China (74%) and China Southern (64%).

  • Can I find deals for flights from O'Hare Intl to San Francisco that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to San Francisco.

  • Can I find deals for business class flights from O'Hare Intl to San Francisco?

    Yes. Cheapflights offers flight deals from O'Hare Intl to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Francisco?

    Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of C$ 470). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of C$ 673). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Clara
Burlingame
San Bruno
Roseville
Livermore
South San Francisco
Novato
Vallejo

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Alternative routes for O'Hare Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from O'Hare Intl to San Francisco?

When you search for this flight from O'Hare Intl to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to San Francisco?

Cheapflights simply makes it quick and affordable to book flights from O'Hare Intl to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from O'Hare Intl to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from O'Hare Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from O'Hare Intl to San Francisco become cheaper?

Of course! You can now track prices for flights from O'Hare Intl to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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