Find flights
Deals
When to book
FAQs

Cheap flights from San Francisco to Chicago O'Hare Intl Airport from £95

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 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
20 Jan — 27 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from San Francisco to Chicago O'Hare Intl are usually found in January or September, booked 67 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

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 21 December 2025.

Wed 31/1215:15SFO - ORD
Nonstop4h 17mUnited Airlines
Sat 17/106:47ORD - SFO
Nonstop4h 53mUnited Airlines
Deal found 20/12£229
Wed 31/1215:15SFO - ORD
Nonstop4h 17mUnited Airlines
Tue 13/118:29ORD - SFO
Nonstop5h 01mUnited Airlines
Deal found 20/12£244
Wed 31/1222:45SFO - ORD
1 stop8h 16mDelta
Thu 15/114:20ORD - SFO
2 stops10h 35mDelta
Deal found 20/12£250
Wed 31/1216:55SFO - ORD
Nonstop4h 19mUnited Airlines
Fri 16/106:47ORD - SFO
Nonstop4h 53mUnited Airlines
Deal found 20/12£253
Wed 31/1205:00SFO - ORD
Nonstop4h 25mUnited Airlines
Thu 1/106:15ORD - SFO
Nonstop4h 53mUnited Airlines
Deal found 19/12£254
Thu 25/1213:19SFO - ORD
1 stop6h 17mDelta
Mon 5/113:35ORD - SFO
1 stop6h 43mDelta
Deal found 18/12£267
Wed 31/1215:15SFO - ORD
Nonstop4h 17mUnited Airlines
Mon 12/107:10ORD - SFO
1 stop12h 36mUnited Airlines
Deal found 20/12£288
Mon 29/1212:11SFO - ORD
1 stop9h 51mDelta
Tue 13/114:50ORD - SFO
1 stop10h 35mDelta
Deal found 20/12£293
Wed 31/1216:55SFO - ORD
Nonstop4h 19mUnited Airlines
Sun 4/121:05ORD - SFO
Nonstop4h 58mUnited Airlines
Deal found 21/12£294
Wed 31/1223:05SFO - ORD
Nonstop4h 22mUnited Airlines
Mon 5/119:45ORD - SFO
Nonstop5h 10mUnited Airlines
Deal found 21/12£298

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 21 December 2025.

Round-trip from

£198

One-way from

£95

Popular in

December

Cheapest in

January

Average price

£361
Delta
  • Delta
  • 31/1-2/2
  • 3 total stops
  • 18h 54m total
  • San Francisco to Chicago
Search Deals
Delta
  • Delta
  • 7/2
  • 2 total stops
  • 9h 22m total
  • San Francisco to Chicago
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 858,174 searches. Data last updated 21 December 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

Tue 20/1

22:54-09:41

1 stop8h 47m

Chicago O'Hare Intl

Fri 23/1

13:50-23:30

2 stops11h 40m

£198

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sun 11/1

05:45-17:26

1 stop9h 41m

Chicago O'Hare Intl

Tue 13/1

14:20-22:55

2 stops10h 35m

£206

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sun 1/2

05:45-16:38

1 stop8h 53m

Chicago O'Hare Intl

Tue 3/2

14:20-22:54

2 stops10h 34m

£206

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 21/1

00:40-11:47

1 stop9h 07m

Chicago O'Hare Intl

Thu 29/1

07:30-16:09

2 stops10h 39m

£206

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 30/1

10:30-21:52

2 stops9h 22m

Chicago O'Hare Intl

Sun 1/2

18:45-23:47

1 stop7h 02m

£206

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 22/1

06:10-15:19

1 stop7h 09m

Chicago O'Hare Intl

Mon 26/1

14:20-22:54

2 stops10h 34m

£206

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 12/3

06:00-16:43

1 stop8h 43m

Chicago O'Hare Intl

Mon 16/3

18:59-23:56

1 stop6h 57m

£207

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sun 25/1

23:56-06:25

Nonstop4h 29m

Chicago O'Hare Intl

Sun 1/2

06:47-09:40

Nonstop4h 53m

£209

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 19/1

23:56-06:25

Nonstop4h 29m

Chicago O'Hare Intl

Fri 23/1

14:40-17:36

Nonstop4h 56m

£209

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 30/1

15:15-21:32

Nonstop4h 17m

Chicago O'Hare Intl

Mon 2/2

16:16-19:09

Nonstop4h 53m

£209

Flights are sorted by cheapest return flights first.

Deals found on 18/12

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 12 December 2025.

The best time to book flights from San Francisco to Chicago O'Hare Intl Airport is 67 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 San Francisco to Chicago O'Hare Intl Airport?

Currently, December is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £80). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of £192). 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 21 December 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.

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?

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to Chicago O'Hare Intl. On average, San Francisco has 59 outbound flights to Chicago O'Hare Intl per day from 0 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

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

    A quick flight from San Francisco to Chicago O'Hare Intl Airport can take about 7h 18m. Delta provides one of the quickest options available for as low as £198. There are 1841 mi 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?

    The top 3 most reliable airlines when flying from San Francisco to Chicago O'Hare Intl Airport are Fiji Airways (100%), Royal Jordanian (92%) and China Southern (91%).

  • 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, December is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £80). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of £192). 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Downers Grove
Elk Grove Village

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?

Deals for San Francisco to O'Hare Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to O'Hare Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from San Francisco to O'Hare Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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.