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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from C$ 162

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
12 Apr — 19 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to San Francisco are usually found in May or September, booked 64 days in advance, depart on a Tuesday or Monday and return on a Wednesday

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 13 March 2026.

Sat 18/47:00 a.m.
ORD
-
SFO
2 stops11h 10m
Southwest
Sat 25/45:40 a.m.
SFO
-
ORD
1 stop6h 40m
Southwest
Deal found 8/3C$ 307
Thu 2/49:40 p.m.
ORD
-
SFO
Nonstop4h 59m
United Airlines
Sat 11/44:55 p.m.
SFO
-
ORD
Nonstop4h 34m
United Airlines
Deal found 8/3C$ 320
Wed 15/47:40 a.m.
ORD
-
SFO
Nonstop4h 58m
United Airlines
Tue 21/46:33 a.m.
SFO
-
ORD
Nonstop4h 27m
United Airlines
Deal found 10/3C$ 322
Sat 4/46:25 a.m.
ORD
-
SFO
Nonstop4h 51m
United Airlines
Tue 7/46:29 p.m.
SFO
-
ORD
Nonstop4h 30m
United Airlines
Deal found 12/3C$ 328
Sat 23/55:00 p.m.
ORD
-
SFO
1 stop7h 07m
Delta
Tue 26/51:35 p.m.
SFO
-
ORD
1 stop8h 22m
Delta
Deal found 8/3C$ 329
Fri 24/410:45 p.m.
ORD
-
SFO
Nonstop4h 50m
United Airlines
Sat 2/510:55 p.m.
SFO
-
ORD
Nonstop4h 30m
United Airlines
Deal found 8/3C$ 332
Tue 14/43:45 p.m.
ORD
-
SFO
Nonstop4h 53m
United Airlines
Tue 21/411:52 p.m.
SFO
-
ORD
Nonstop4h 28m
United Airlines
Deal found 9/3C$ 333
Thu 9/47:10 p.m.
ORD
-
SFO
1 stop6h 49m
Delta
Mon 13/410:55 p.m.
SFO
-
ORD
1 stop9h 24m
Delta
Deal found 9/3C$ 336
Wed 15/46:25 a.m.
ORD
-
SFO
Nonstop4h 51m
United Airlines
Fri 17/412:45 a.m.
SFO
-
ORD
Nonstop4h 22m
United Airlines
Deal found 10/3C$ 341
Wed 8/47:40 a.m.
ORD
-
SFO
Nonstop4h 58m
United Airlines
Mon 13/46:29 p.m.
SFO
-
ORD
Nonstop4h 30m
United Airlines
Deal found 12/3C$ 343
Thu 2/47:10 p.m.
ORD
-
SFO
1 stop6h 49m
Delta
Wed 8/45:50 a.m.
SFO
-
ORD
1 stop8h 53m
Delta
Deal found 11/3C$ 344
Thu 16/410:45 p.m.
ORD
-
SFO
Nonstop4h 50m
United Airlines
Fri 17/412:45 a.m.
SFO
-
ORD
Nonstop4h 22m
United Airlines
Deal found 13/3C$ 347

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 13 March 2026.

Round-trip from

C$ 307

One-way from

C$ 162

Popular in

November

Cheapest in

May

Average price

C$ 540
Southwest
  • Southwest
  • 18/4-25/4
  • 3 total stops
  • 17h 50m total
  • Chicago to San Francisco
Search Deals
Delta
  • Delta
  • 8/4
  • 1 total stop
  • 7h 02m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 13 March 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

Mon 6/4

7:10 p.m.-11:59 p.m.

1 stop6h 49m

San Francisco

Fri 10/4

12:10 a.m.-8:52 a.m.

1 stop6h 42m

C$ 329

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 16/4

9:40 p.m.-12:39 a.m.

Nonstop4h 59m

San Francisco

Mon 20/4

12:45 a.m.-7:07 a.m.

Nonstop4h 22m

C$ 341

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 26/4

6:25 a.m.-9:16 a.m.

Nonstop4h 51m

San Francisco

Sun 26/4

10:50 p.m.-5:27 a.m.

Nonstop4h 37m

C$ 415

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 13/7

5:20 p.m.-11:45 p.m.

1 stop8h 25m

San Francisco

Thu 16/7

1:00 p.m.-11:45 p.m.

1 stop8h 45m

C$ 426

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 23/7

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

Nonstop4h 57m

San Francisco

Sun 26/7

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

Nonstop4h 26m

C$ 429

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 24/7

2:55 p.m.-8:19 p.m.

1 stop7h 24m

San Francisco

Fri 7/8

7:00 a.m.-5:30 p.m.

1 stop8h 30m

C$ 453

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 16/4

8:00 a.m.-2:35 p.m.

2 stops8h 35m

San Francisco

Tue 21/4

11:25 a.m.-11:55 p.m.

2 stops10h 30m

C$ 454
Quickest round-trip

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 23/7

6:10 a.m.-8:47 a.m.

Nonstop4h 37m

San Francisco

Tue 28/7

10:38 p.m.-5:01 a.m.

Nonstop4h 23m

C$ 456

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 21/5

8:00 a.m.-2:35 p.m.

2 stops8h 35m

San Francisco

Tue 26/5

11:25 a.m.-11:55 p.m.

2 stops10h 30m

C$ 460

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 6/4

6:25 p.m.-11:20 p.m.

1 stop6h 55m

San Francisco

Thu 9/4

10:55 p.m.-12:50 p.m.

1 stop11h 55m

C$ 499

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

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?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to San Francisco. Price data was last updated on 6 March 2026.

The best time to book flights from Chicago O'Hare Intl Airport to San Francisco is 64 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, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of C$ 109). Flying from Chicago O'Hare Intl Airport to San Francisco in February is currently the most expensive (average of C$ 295). 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 13 March 2026.

One of the essential ways to save on airfare from Chicago O'Hare Intl Airport to San Francisco is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 68% on airfare.

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 19.0 km from the centre of San Francisco. There are 60 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 52m. Fly via United Airlines or Southwest 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 (87%), Lufthansa (81%) and Air Canada (74%).

  • 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, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of C$ 109). Flying from Chicago O'Hare Intl Airport to San Francisco in February is currently the most expensive (average of C$ 295). 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
Richmond
Burlingame
South San Francisco
Scotts Valley
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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