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Cheap flights from San Francisco to Chicago O'Hare Intl Airport from $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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
23 May — 30 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to O'Hare Intl
Explore the most affordable flight options available from San Francisco to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 April 2026.

Thu 30/722:30
SFO
-
ORD
1 stop7h 29m
Delta
Tue 4/807:35
ORD
-
SFO
1 stop7h 51m
Delta
Deal found 19/4$378
Tue 19/514:50
SFO
-
ORD
1 stop7h 05m
Southwest
Sat 23/506:15
ORD
-
SFO
2 stops13h 10m
Southwest
Deal found 21/4$381
Mon 18/500:45
SFO
-
ORD
Nonstop4h 22m
United Airlines
Mon 15/622:45
ORD
-
SFO
Nonstop4h 57m
United Airlines
Deal found 20/4$383
Tue 25/815:25
SFO
-
ORD
1 stop6h 32m
Alaska Airlines
Sat 29/807:00
ORD
-
SFO
1 stop7h 39m
Alaska Airlines
Deal found 23/4$384
Sat 16/516:44
SFO
-
ORD
1 stop18h 30m
Alaska Airlines
Wed 20/514:10
ORD
-
SFO
1 stop7h 10m
Alaska Airlines
Deal found 21/4$387
Mon 18/500:45
SFO
-
ORD
Nonstop4h 22m
United Airlines
Sat 23/521:48
ORD
-
SFO
Nonstop4h 57m
United Airlines
Deal found 20/4$388
Sat 16/513:20
SFO
-
ORD
1 stop6h 30m
Delta
Mon 8/617:57
ORD
-
SFO
1 stop7h 56m
Delta
Deal found 20/4$390
Sat 16/516:44
SFO
-
ORD
1 stop18h 30m
Alaska Airlines
Sat 23/509:00
ORD
-
SFO
1 stop10h 01m
Alaska Airlines
Deal found 19/4$395
Tue 12/511:25
SFO
-
ORD
2 stops9h 30m
Southwest
Tue 19/519:35
ORD
-
SFO
2 stops17h 30m
Southwest
Deal found 21/4$397
Thu 30/722:30
SFO
-
ORD
1 stop7h 29m
Delta
Thu 6/814:42
ORD
-
SFO
1 stop8h 35m
Delta
Deal found 19/4$398
Wed 13/511:41
SFO
-
ORD
1 stop8h 12m
Delta
Fri 15/519:45
ORD
-
SFO
1 stop6h 12m
Delta
Deal found 21/4$402
Thu 14/500:45
SFO
-
ORD
Nonstop4h 22m
United Airlines
Sat 30/520:09
ORD
-
SFO
Nonstop4h 53m
United Airlines
Deal found 21/4$404

Find flight deals from San Francisco to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to O'Hare Intl (ORD). 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 23 April 2026.

Round-trip from

$378

One-way from

$180

Popular in

November

Cheapest in

September

Average price

$554
Delta
  • Delta
  • 30/7-4/8
  • 2 total stops
  • 15h 20m total
  • San Francisco to Chicago
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Delta
  • Delta
  • 13/5
  • 1 total stop
  • 8h 14m total
  • San Francisco to Chicago
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($110 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to O'Hare Intl 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 647,157 searches. Data last updated 23 April 2026.
Use the filters below to find and compare flights from San Francisco to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 5/9

06:15-14:58

1 stop6h 43m

Chicago O'Hare Intl

Sat 12/9

12:15-18:08

1 stop7h 53m

$390

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 25/9

00:40-08:34

1 stop5h 54m

Chicago O'Hare Intl

Sat 26/9

14:55-20:19

1 stop7h 24m

$455

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 18/5

22:55-12:50

1 stop11h 55m

Chicago O'Hare Intl

Wed 27/5

07:45-15:20

2 stops9h 35m

$476

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 23/5

07:45-22:20

2 stops12h 35m

Chicago O'Hare Intl

Sat 30/5

06:15-17:25

2 stops13h 10m

$482

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 5/6

13:25-21:50

1 stop6h 25m

Chicago O'Hare Intl

Mon 6/7

17:57-23:53

1 stop7h 56m

$497

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 29/5

13:25-23:55

2 stops8h 30m

Chicago O'Hare Intl

Tue 2/6

10:30-19:05

2 stops10h 35m

$524

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 20/5

07:20-18:50

2 stops9h 30m

Chicago O'Hare Intl

Wed 27/5

10:30-19:05

2 stops10h 35m

$524

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 7/5

23:10-05:40

Nonstop4h 30m

Chicago O'Hare Intl

Sat 9/5

08:40-11:24

Nonstop4h 44m

$533

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 26/5

11:25-22:55

2 stops9h 30m

Chicago O'Hare Intl

Fri 29/5

16:15-00:10

2 stops9h 55m

$546

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 28/5

22:55-12:50

1 stop11h 55m

Chicago O'Hare Intl

Sun 31/5

08:00-14:50

2 stops8h 50m

$563

Flights are sorted by cheapest return flights first.

Deals found on 20/4

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from San Francisco to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from San Francisco with our price prediction graph.
Estimated return 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 San Francisco to Chicago O'Hare Intl Airport

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

Use this chart to determine the optimal time to book a return flight from San Francisco to O'Hare Intl. Price data was last updated on 17 April 2026.

The price you pay for your flight from San Francisco to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of $443). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of $654). 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 SFO to ORD?

Find hourly flight availability from San Francisco to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 April 2026.

It’s typically best to fly out from San Francisco to Chicago O'Hare Intl Airport in the afternoon. Doing so could potentially save you 59% on the flight price compared to flying at midday, which is usually more expensive.

How much does it cost for a return flight from San Francisco to Chicago O'Hare Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from San Francisco to O'Hare Intl. 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 from for flights from San Francisco to Chicago O'Hare Intl?

    San Francisco (SFO) is the airport you will fly out of if you book a flight from San Francisco to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from San Francisco; the airport handles an average of 73 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the San Francisco airport to Chicago O'Hare Intl. It is only a 17.7 km journey to San Francisco (SFO) from San Francisco’s city centre.

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

    Departing from San Francisco to Chicago O'Hare Intl Airport will take you 4h 34m. There are 2963 km between San Francisco and Chicago O'Hare Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Before booking your flight to Chicago O'Hare Intl Airport from San Francisco, have a look at the most reliable airlines to get you to your destination on time: Asiana Airlines (88%), Brussels Airlines (85%), Air Canada( 82%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to O'Hare Intl 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 San Francisco to Chicago O'Hare Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of $443). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of $654). 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

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Alternative routes for San Francisco to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to O'Hare Intl flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from San Francisco to O'Hare Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Francisco to O'Hare Intl for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from San Francisco to O'Hare Intl with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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