Find flights
Deals
When to book
FAQs

Cheap flights from San Francisco to Chicago O'Hare Intl Airport from $187

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

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 8 January 2026.

Round-trip from

$375

One-way from

$187

Popular in

November

Cheapest in

September

Average price

$504
Alaska Airlines
  • Alaska Airlines
  • 13/3-16/3
  • 3 total stops
  • 29h 14m total
  • San Francisco to Chicago
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 5/2
  • 2 total stops
  • 14h 20m total
  • San Francisco to Chicago
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($157 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 8 January 2026.

Fri 13/311:41SFO - ORD
2 stops10h 15mAlaska Airlines
Mon 16/307:00ORD - SFO
1 stop18h 59mAlaska Airlines
Deal found 8/1$375
Thu 29/110:30SFO - ORD
2 stops9h 22mDelta
Tue 3/214:20ORD - SFO
2 stops11h 36mDelta
Deal found 8/1$376
Fri 13/306:05SFO - ORD
2 stops10h 01mDelta
Sun 15/319:05ORD - SFO
1 stop6h 46mDelta
Deal found 7/1$379
Sat 7/208:25SFO - ORD
Nonstop4h 28mUnited Airlines
Sat 7/219:58ORD - SFO
Nonstop5h 02mUnited Airlines
Deal found 7/1$381
Fri 13/305:00SFO - ORD
1 stop6h 55mSouthwest
Mon 16/316:55ORD - SFO
1 stop9h 15mSouthwest
Deal found 7/1$382
Sat 7/322:30SFO - ORD
1 stop11h 20mSouthwest
Thu 12/306:15ORD - SFO
2 stops10h 15mSouthwest
Deal found 8/1$384
Tue 27/112:00SFO - ORD
1 stop9h 50mAlaska Airlines
Thu 12/213:00ORD - SFO
1 stop12h 59mAlaska Airlines
Deal found 8/1$387
Wed 8/407:20SFO - ORD
2 stops9h 30mSouthwest
Tue 14/414:40ORD - SFO
1 stop8h 15mSouthwest
Deal found 6/1$388
Thu 12/205:35SFO - ORD
2 stops8h 40mSouthwest
Thu 19/216:25ORD - SFO
1 stop7h 40mSouthwest
Deal found 8/1$390
Thu 26/205:15SFO - ORD
1 stop9h 00mSouthwest
Sun 1/315:45ORD - SFO
1 stop10h 20mSouthwest
Deal found 7/1$391
Thu 9/400:10SFO - ORD
1 stop6h 30mDelta
Fri 10/419:00ORD - SFO
1 stop6h 56mDelta
Deal found 8/1$392
Wed 22/400:45SFO - ORD
Nonstop4h 22mUnited Airlines
Sun 26/406:25ORD - SFO
Nonstop4h 51mUnited Airlines
Deal found 6/1$394

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 8 January 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

San Francisco

Fly to

O'Hare Intl

Route

Depart

Return

Price

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 13/3

11:41-23:56

2 stops10h 15m

Chicago O'Hare Intl

Mon 16/3

07:00-23:59

1 stop18h 59m

$375

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 7/2

10:30-21:52

2 stops9h 22m

Chicago O'Hare Intl

Wed 11/2

14:20-22:54

2 stops10h 34m

$376

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 12/2

05:35-16:15

2 stops8h 40m

Chicago O'Hare Intl

Thu 19/2

16:25-22:05

1 stop7h 40m

$390

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 29/4

15:00-21:38

Nonstop4h 38m

Chicago O'Hare Intl

Sun 3/5

07:45-10:38

Nonstop4h 53m

$394

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 21/1

12:15-09:44

1 stop19h 29m

Chicago O'Hare Intl

Mon 2/2

14:20-23:30

1 stop11h 10m

$397

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 29/1

09:55-22:35

2 stops10h 40m

Chicago O'Hare Intl

Mon 2/2

07:15-15:30

2 stops10h 15m

$398

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 3/2

09:50-23:53

2 stops12h 03m

Chicago O'Hare Intl

Sun 8/2

07:30-17:47

2 stops12h 17m

$403

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 28/1

16:55-23:14

Nonstop4h 19m

Chicago O'Hare Intl

Mon 2/2

16:16-19:09

Nonstop4h 53m

$406

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 28/2

19:35-09:41

2 stops12h 06m

Chicago O'Hare Intl

Wed 11/3

07:25-16:10

2 stops10h 45m

$406

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 14/2

19:35-09:41

2 stops12h 06m

Chicago O'Hare Intl

Wed 18/2

07:40-17:56

2 stops12h 16m

$406

Flights are sorted by cheapest return flights first.

Deals found on 8/1

Showing 1-10 of 24 results
1
2
3

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 2 January 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 64 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, October is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of $187). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of $384). 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 8 January 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.

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 38 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 28m. 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: Gulf Air (100%), Qatar Airways (97%), Iberia( 93%).

  • 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, October is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of $187). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of $384). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

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

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.