Find flights
Deals
When to book
FAQs

Cheap flights from San Francisco to Chicago O'Hare Intl Airport from $211

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
12 Jul — 19 Jul1
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 12 June 2026.

Thu 6/807:13
SFO
-
ORD
2 stops12h 17m
Delta
Mon 10/818:48
ORD
-
SFO
1 stop7h 07m
Delta
Deal found 9/6$445
Tue 25/805:00
SFO
-
ORD
Nonstop4h 25m
United Airlines
Wed 26/815:35
ORD
-
SFO
Nonstop4h 49m
United Airlines
Deal found 10/6$446
Thu 23/722:55
SFO
-
ORD
1 stop7h 04m
Delta
Tue 28/719:40
ORD
-
SFO
1 stop6h 12m
Delta
Deal found 9/6$448
Thu 16/707:55
SFO
-
ORD
1 stop9h 02m
Alaska Airlines
Tue 21/707:20
ORD
-
SFO
1 stop7h 19m
Alaska Airlines
Deal found 7/6$449
Mon 31/823:30
SFO
-
ORD
Nonstop4h 29m
United Airlines
Tue 8/921:40
ORD
-
SFO
Nonstop4h 50m
United Airlines
Deal found 10/6$452
Wed 5/800:50
SFO
-
ORD
Nonstop4h 26m
United Airlines
Sat 8/806:10
ORD
-
SFO
Nonstop4h 37m
United Airlines
Deal found 9/6$454
Fri 7/807:55
SFO
-
ORD
1 stop9h 02m
Alaska Airlines
Sat 8/817:59
ORD
-
SFO
1 stop7h 09m
Alaska Airlines
Deal found 9/6$456
Wed 22/716:21
SFO
-
ORD
Nonstop4h 38m
United Airlines
Thu 23/706:10
ORD
-
SFO
Nonstop4h 37m
United Airlines
Deal found 9/6$458
Fri 7/813:30
SFO
-
ORD
1 stop6h 00m
Delta
Mon 10/817:57
ORD
-
SFO
1 stop7h 50m
Delta
Deal found 10/6$459
Fri 17/713:20
SFO
-
ORD
1 stop6h 09m
Delta
Tue 28/718:35
ORD
-
SFO
1 stop6h 44m
Delta
Deal found 9/6$461
Fri 17/707:55
SFO
-
ORD
1 stop9h 02m
Alaska Airlines
Sat 18/717:59
ORD
-
SFO
1 stop7h 09m
Alaska Airlines
Deal found 7/6$462

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 12 June 2026.

Round-trip from

$445

One-way from

$211

Popular in

June

Cheapest in

September

Average price

$696
Delta
  • Delta
  • 6/8-10/8
  • 3 total stops
  • 19h 24m total
  • San Francisco to Chicago
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 21/8
  • 1 total stop
  • 18h 06m total
  • San Francisco to Chicago
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
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 647,157 searches. Data last updated 12 June 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 18/7

15:10-21:38

Nonstop4h 28m

Chicago O'Hare Intl

Tue 28/7

07:30-10:19

Nonstop4h 49m

$478

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 31/10

16:55-23:29

Nonstop4h 34m

Chicago O'Hare Intl

Tue 3/11

17:09-20:09

Nonstop5h 00m

$479
Fastest return journey

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 22/8

16:10-22:30

Nonstop4h 20m

Chicago O'Hare Intl

Tue 25/8

06:00-08:38

Nonstop4h 38m

$479

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 21/7

16:21-22:59

Nonstop4h 38m

Chicago O'Hare Intl

Tue 28/7

06:10-08:47

Nonstop4h 37m

$504

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sun 5/7

22:38-05:01

Nonstop4h 23m

Chicago O'Hare Intl

Wed 8/7

07:30-10:19

Nonstop4h 49m

$529

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 24/7

07:55-18:57

1 stop9h 02m

Chicago O'Hare Intl

Mon 27/7

07:20-12:39

1 stop7h 19m

$556

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 3/7

18:34-00:59

Nonstop4h 25m

Chicago O'Hare Intl

Tue 7/7

07:30-10:19

Nonstop4h 49m

$589

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 31/7

18:34-00:59

Nonstop4h 25m

Chicago O'Hare Intl

Sun 2/8

06:10-08:47

Nonstop4h 37m

$589

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 1/7

15:10-21:38

Nonstop4h 28m

Chicago O'Hare Intl

Fri 3/7

15:57-18:49

Nonstop4h 52m

$599

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 24/6

13:21-23:36

1 stop8h 15m

Chicago O'Hare Intl

Thu 2/7

06:20-12:51

1 stop8h 31m

$601

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 24 resultsSorted by cheapest first
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?

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 66 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 $456). Flying from San Francisco to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $696). 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 12 June 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 28m. There are 2963 km between San Francisco and Chicago O'Hare Intl Airport. Most flights are nonstop.

  • 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: ITA Airways (96%), Brussels Airlines (85%), Austrian Airlines( 83%).

  • 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 $456). Flying from San Francisco to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $696). 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.