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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from C$ 182

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
27 May — 3 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to San Francisco are usually found in September or August, booked 83 days in advance, depart on a Monday or Tuesday and return on a Tuesday

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 27 April 2026.

Sat 30/57:49 p.m.
ORD
-
SFO
1 stop15h 29m
Alaska Airlines
Wed 3/66:16 a.m.
SFO
-
ORD
1 stop10h 34m
Alaska Airlines
Deal found 27/4C$ 362
Wed 27/59:48 p.m.
ORD
-
SFO
Nonstop4h 57m
United Airlines
Wed 3/65:05 a.m.
SFO
-
ORD
Nonstop4h 26m
United Airlines
Deal found 23/4C$ 364
Thu 28/54:15 p.m.
ORD
-
SFO
2 stops9h 55m
Southwest
Tue 2/610:30 a.m.
SFO
-
ORD
2 stops10h 25m
Southwest
Deal found 22/4C$ 365
Sat 30/57:00 a.m.
ORD
-
SFO
1 stop12h 15m
Southwest
Tue 2/610:05 a.m.
SFO
-
ORD
2 stops10h 50m
Southwest
Deal found 24/4C$ 369
Sat 23/59:25 a.m.
ORD
-
SFO
1 stop6h 50m
Delta
Wed 3/69:43 a.m.
SFO
-
ORD
1 stop7h 07m
Delta
Deal found 24/4C$ 370
Mon 1/65:41 p.m.
ORD
-
SFO
1 stop8h 09m
Delta
Mon 8/612:40 a.m.
SFO
-
ORD
1 stop5h 55m
Delta
Deal found 27/4C$ 372
Wed 29/77:40 a.m.
ORD
-
SFO
Nonstop4h 49m
United Airlines
Wed 12/86:34 p.m.
SFO
-
ORD
Nonstop4h 21m
United Airlines
Deal found 23/4C$ 374
Sat 23/57:00 a.m.
ORD
-
SFO
1 stop9h 15m
Delta
Sat 30/55:55 a.m.
SFO
-
ORD
1 stop9h 18m
Delta
Deal found 23/4C$ 381
Thu 4/62:10 p.m.
ORD
-
SFO
1 stop10h 13m
Alaska Airlines
Thu 11/610:32 a.m.
SFO
-
ORD
1 stop11h 04m
Alaska Airlines
Deal found 26/4C$ 383
Fri 29/52:10 p.m.
ORD
-
SFO
1 stop10h 13m
Alaska Airlines
Wed 3/66:16 a.m.
SFO
-
ORD
1 stop10h 34m
Alaska Airlines
Deal found 23/4C$ 384
Mon 1/69:33 p.m.
ORD
-
SFO
Nonstop4h 57m
United Airlines
Wed 3/65:05 a.m.
SFO
-
ORD
Nonstop4h 26m
United Airlines
Deal found 25/4C$ 388
Sat 23/59:25 a.m.
ORD
-
SFO
1 stop6h 50m
Delta
Mon 8/611:56 p.m.
SFO
-
ORD
1 stop8h 49m
Delta
Deal found 24/4C$ 389

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 27 April 2026.

Round-trip from

C$ 362

One-way from

C$ 182

Popular in

April

Cheapest in

September

Average price

C$ 605
Alaska Airlines
  • Alaska Airlines
  • 30/5-3/6
  • 2 total stops
  • 18h 49m total
  • Chicago to San Francisco
Search Deals
United Airlines
  • United Airlines
  • 28/5
  • Nonstop
  • 4h 52m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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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 27 April 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

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 2/6

9:33 p.m.-12:30 a.m.

Nonstop4h 57m

San Francisco

Tue 9/6

11:30 p.m.-5:57 a.m.

Nonstop4h 27m

C$ 362

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 28/5

7:40 a.m.-10:29 a.m.

Nonstop4h 49m

San Francisco

Sun 31/5

5:05 a.m.-11:31 a.m.

Nonstop4h 26m

C$ 429

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 23/5

7:00 a.m.-2:15 p.m.

1 stop9h 15m

San Francisco

Sat 13/6

2:30 p.m.-11:18 p.m.

1 stop6h 48m

C$ 437

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 30/5

7:00 a.m.-5:25 p.m.

2 stops12h 25m

San Francisco

Tue 2/6

10:05 a.m.-10:55 p.m.

2 stops10h 50m

C$ 440

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 19/5

7:40 a.m.-10:33 a.m.

Nonstop4h 53m

San Francisco

Sat 23/5

5:05 a.m.-11:31 a.m.

Nonstop4h 26m

C$ 450

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 22/6

10:45 p.m.-1:42 a.m.

Nonstop4h 57m

San Francisco

Mon 29/6

6:34 p.m.-12:59 a.m.

Nonstop4h 25m

C$ 458

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 9/9

8:40 a.m.-11:25 a.m.

Nonstop4h 45m

San Francisco

Tue 15/9

6:34 p.m.-12:55 a.m.

Nonstop4h 21m

C$ 458

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 29/5

8:00 a.m.-5:00 p.m.

2 stops11h 00m

San Francisco

Sat 30/5

11:05 a.m.-10:20 p.m.

1 stop9h 15m

C$ 482

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 12/8

7:40 a.m.-10:26 a.m.

Nonstop4h 46m

San Francisco

Sat 15/8

6:34 p.m.-12:55 a.m.

Nonstop4h 21m

C$ 497

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 24/5

8:55 a.m.-11:44 a.m.

Nonstop4h 49m

San Francisco

Tue 9/6

12:50 a.m.-7:16 a.m.

Nonstop4h 26m

C$ 514

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/4

Showing 1-10 of 24 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 82 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$ 418). Flying from Chicago O'Hare Intl Airport to San Francisco in April is currently the most expensive (average of C$ 605). 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 27 April 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?

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 67 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 37m. Fly via Delta, Southwest, or United Airlines to get the fastest option. Chicago O'Hare Intl Airport and San Francisco are separated by a distance of 2963 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 (93%), Air China (91%) and China Southern (78%).

  • 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$ 418). Flying from Chicago O'Hare Intl Airport to San Francisco in April is currently the most expensive (average of C$ 605). 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
Burlingame
San Bruno
Roseville
Livermore
South San Francisco
Novato
Santa Clara
Vallejo

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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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