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Cheap flights from San Francisco to Chicago O'Hare Intl Airport from $168

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
27 Aug — 3 Sep1
1 adult

Cheap 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 22 August 2025.

Round-trip from

$318

One-way from

$168

Popular in

November

Cheapest in

January

Average price

$546
Alaska Airlines
  • Alaska Airlines
  • 22/10-12/11
  • 2 total stops
  • 26h 14m total
  • San Francisco to Chicago
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Alaska Airlines
  • Alaska Airlines
  • 12/11
  • 1 total stop
  • 9h 59m total
  • San Francisco to Chicago
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Highest demand for flights based on searches. 14% potential increase in price ($154 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from San Francisco to O'Hare Intl

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 22 August 2025.

Wed 22/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Wed 12/1109:20ORD - SFO
1 stop14h 41mAlaska Airlines
Deal found 22/8$318
Wed 3/906:30SFO - ORD
Nonstop4h 31mUnited Airlines
Sat 13/910:49ORD - SFO
Nonstop4h 46mUnited Airlines
Deal found 21/8$319
Sat 30/816:55SFO - ORD
Nonstop4h 17mUnited Airlines
Wed 3/906:15ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 21/8$321
Wed 12/1107:00SFO - ORD
1 stop14h 59mAlaska Airlines
Fri 14/1114:05ORD - SFO
1 stop7h 42mAlaska Airlines
Deal found 20/8$342
Sat 25/1008:41SFO - ORD
1 stop13h 18mAlaska Airlines
Sat 8/1114:54ORD - SFO
1 stop9h 01mAlaska Airlines
Deal found 22/8$349
Sat 6/915:00SFO - ORD
Nonstop4h 24mUnited Airlines
Thu 11/906:15ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 21/8$353
Wed 5/1109:51SFO - ORD
2 stops12h 08mAlaska Airlines
Sat 8/1114:54ORD - SFO
1 stop9h 01mAlaska Airlines
Deal found 21/8$358
Sat 20/907:00SFO - ORD
Nonstop4h 32mUnited Airlines
Tue 23/916:30ORD - SFO
Nonstop4h 44mUnited Airlines
Deal found 21/8$360
Sat 6/907:00SFO - ORD
Nonstop4h 32mUnited Airlines
Fri 12/916:30ORD - SFO
Nonstop4h 44mUnited Airlines
Deal found 21/8$364
Thu 30/1007:00SFO - ORD
1 stop9h 59mAlaska Airlines
Mon 3/1107:00ORD - SFO
1 stop7h 35mAlaska Airlines
Deal found 21/8$367
Wed 22/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Tue 28/1014:05ORD - SFO
2 stops11h 53mAlaska Airlines
Deal found 20/8$372
Fri 31/1018:59SFO - ORD
1 stop8h 02mHawaiian Airlines
Tue 4/1114:54ORD - SFO
1 stop9h 07mHawaiian Airlines
Deal found 20/8$375

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 22 August 2025.
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

San Francisco

Fly to

O'Hare Intl

Route

Depart

Return

Price

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 15/10

10:26-23:59

1 stop11h 33m

Chicago O'Hare Intl

Wed 22/10

19:59-14:01

1 stop20h 02m

$318

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 12/11

07:00-23:59

1 stop14h 59m

Chicago O'Hare Intl

Wed 19/11

09:20-22:01

1 stop14h 41m

$318

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 29/10

07:00-18:59

1 stop9h 59m

Chicago O'Hare Intl

Wed 5/11

09:20-22:01

1 stop14h 41m

$318

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 6/9

23:10-05:23

Nonstop4h 13m

Chicago O'Hare Intl

Sat 13/9

10:49-13:35

Nonstop4h 46m

$319

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 6/9

07:00-13:32

Nonstop4h 32m

Chicago O'Hare Intl

Sat 20/9

19:43-22:34

Nonstop4h 51m

$319

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 3/11

14:46-00:24

1 stop7h 38m

Chicago O'Hare Intl

Tue 4/11

14:54-22:01

1 stop9h 07m

$342

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 14/11

18:36-13:54

1 stop17h 18m

Chicago O'Hare Intl

Sun 16/11

07:00-12:35

1 stop7h 35m

$342

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 29/10

07:00-23:59

1 stop14h 59m

Chicago O'Hare Intl

Mon 3/11

14:05-19:47

1 stop7h 42m

$342

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 14/11

08:00-05:01

1 stop19h 01m

Chicago O'Hare Intl

Tue 18/11

09:20-22:01

1 stop14h 41m

$342

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 12/11

07:00-18:59

1 stop9h 59m

Chicago O'Hare Intl

Fri 14/11

14:05-19:47

1 stop7h 42m

$342

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Showing 1-10 of 20 results
1
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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 8 August 2025.

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 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 22 August 2025.

When flying from San Francisco to Chicago O'Hare Intl Airport, 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 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 72 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 19.0 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 13m. 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 (82%), Austrian Airlines (79%), Brussels Airlines( 77%).

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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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