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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from C$ 178

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
25 Feb — 4 Mar1
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 April, booked 82 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 26 January 2026.

Wed 18/36:17 a.m.
ORD
-
SFO
Nonstop5h 05m
United Airlines
Wed 25/311:59 p.m.
SFO
-
ORD
Nonstop4h 20m
United Airlines
Deal found 25/1C$ 336
Sat 21/25:15 p.m.
ORD
-
SFO
1 stop7h 15m
Southwest
Sat 28/22:30 p.m.
SFO
-
ORD
1 stop6h 05m
Southwest
Deal found 25/1C$ 340
Sat 14/36:17 a.m.
ORD
-
SFO
Nonstop5h 05m
United Airlines
Fri 20/36:44 p.m.
SFO
-
ORD
Nonstop4h 15m
United Airlines
Deal found 25/1C$ 342
Sat 28/22:15 p.m.
ORD
-
SFO
1 stop9h 50m
Southwest
Sat 7/36:15 a.m.
SFO
-
ORD
2 stops10h 35m
Southwest
Deal found 25/1C$ 348
Sat 7/36:20 p.m.
ORD
-
SFO
1 stop6h 55m
Southwest
Sat 14/310:55 p.m.
SFO
-
ORD
1 stop11h 55m
Southwest
Deal found 25/1C$ 351
Thu 19/27:40 a.m.
ORD
-
SFO
1 stop10h 11m
Delta
Sat 28/26:05 a.m.
SFO
-
ORD
1 stop8h 49m
Delta
Deal found 26/1C$ 356
Fri 8/53:52 p.m.
ORD
-
SFO
1 stop9h 09m
Alaska Airlines
Mon 11/57:15 a.m.
SFO
-
ORD
1 stop27h 58m
Alaska Airlines
Deal found 26/1C$ 360
Fri 20/25:37 p.m.
ORD
-
SFO
1 stop7h 48m
Delta
Fri 27/212:40 a.m.
SFO
-
ORD
1 stop9h 05m
Delta
Deal found 26/1C$ 362
Thu 9/410:30 a.m.
ORD
-
SFO
Nonstop4h 57m
United Airlines
Wed 15/41:50 p.m.
SFO
-
ORD
Nonstop4h 37m
United Airlines
Deal found 26/1C$ 363
Sat 4/42:40 p.m.
ORD
-
SFO
1 stop7h 35m
Southwest
Sat 11/411:45 a.m.
SFO
-
ORD
2 stops9h 40m
Southwest
Deal found 25/1C$ 366
Tue 17/311:10 a.m.
ORD
-
SFO
1 stop10h 09m
Delta
Sat 21/35:50 a.m.
SFO
-
ORD
1 stop8h 28m
Delta
Deal found 26/1C$ 367
Sat 14/36:20 p.m.
ORD
-
SFO
1 stop6h 55m
Southwest
Thu 19/35:30 a.m.
SFO
-
ORD
1 stop7h 35m
Southwest
Deal found 25/1C$ 368

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 26 January 2026.

Round-trip from

C$ 331

One-way from

C$ 175

Popular in

November

Cheapest in

May

Average price

C$ 531
United Airlines
  • United Airlines
  • 21/2-28/2
  • Nonstop
  • 9h 22m total
  • Chicago to San Francisco
Search Deals
Southwest
  • Southwest
  • 14/2
  • 1 total stop
  • 7h 15m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 73 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 January 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 26 January 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

O'Hare Intl

Fly to

San Francisco

Route

Depart

Return

Price

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 12/5

8:40 a.m.-11:24 a.m.

Nonstop4h 44m

San Francisco

Sat 16/5

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

Nonstop4h 22m

C$ 342

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 2/5

4:35 p.m.-7:32 p.m.

Nonstop4h 57m

San Francisco

Sun 3/5

10:55 p.m.-5:25 a.m.

Nonstop4h 30m

C$ 342

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 12/5

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

Nonstop4h 53m

San Francisco

Sun 17/5

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

Nonstop4h 22m

C$ 342

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 18/3

7:45 a.m.-10:55 a.m.

Nonstop5h 10m

San Francisco

Fri 20/3

6:44 p.m.-12:59 a.m.

Nonstop4h 15m

C$ 342

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 6/3

2:20 p.m.-10:41 p.m.

1 stop10h 21m

San Francisco

Tue 10/3

10:35 p.m.-8:30 a.m.

1 stop7h 55m

C$ 356

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 10/4

7:10 a.m.-2:42 p.m.

1 stop9h 32m

San Francisco

Tue 14/4

10:55 p.m.-10:09 a.m.

1 stop9h 14m

C$ 370

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 28/2

7:15 a.m.-4:15 p.m.

2 stops11h 00m

San Francisco

Sat 7/3

6:15 a.m.-6:50 p.m.

2 stops10h 35m

C$ 382

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 1/3

6:25 a.m.-9:30 a.m.

Nonstop5h 05m

San Francisco

Sun 8/3

11:59 p.m.-6:19 a.m.

Nonstop4h 20m

C$ 388

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 27/2

4:20 p.m.-7:19 p.m.

Nonstop4h 59m

San Francisco

Sun 1/3

11:59 p.m.-6:19 a.m.

Nonstop4h 20m

C$ 388

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 23/2

6:25 a.m.-9:27 a.m.

Nonstop5h 02m

San Francisco

Mon 2/3

10:50 p.m.-5:12 a.m.

Nonstop4h 22m

C$ 388

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

Showing 1-10 of 23 results
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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 23 January 2026.

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, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of C$ 110). Flying from Chicago O'Hare Intl Airport to San Francisco in November is currently the most expensive (average of C$ 284). 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 26 January 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 46 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 44m. Fly via United Airlines, Delta, 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 (88%), Qatar Airways (83%) and Iberia (82%).

  • 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$ 110). Flying from Chicago O'Hare Intl Airport to San Francisco in November is currently the most expensive (average of C$ 284). 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
Newark
Burlingame
South San Francisco
Scotts Valley
Novato
Santa Clara
Vallejo

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Alternative routes for O'Hare Intl to San Francisco

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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