Find flights
Deals
When to book
FAQs

Cheap flights from San Francisco to Chicago O'Hare Intl Airport from £89

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
7 May — 14 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 7 April 2026.

Tue 16/614:30
SFO
-
ORD
1 stop6h 48m
Delta
Tue 30/607:01
ORD
-
SFO
1 stop9h 15m
Delta
Deal found 6/4£194
Wed 20/505:30
SFO
-
ORD
Nonstop4h 25m
United Airlines
Wed 27/507:40
ORD
-
SFO
Nonstop4h 49m
United Airlines
Deal found 3/4£197
Tue 19/507:20
SFO
-
ORD
2 stops9h 30m
Southwest
Tue 26/516:50
ORD
-
SFO
1 stop8h 25m
Southwest
Deal found 4/4£198
Wed 29/400:45
SFO
-
ORD
Nonstop4h 22m
United Airlines
Thu 7/508:40
ORD
-
SFO
Nonstop4h 44m
United Airlines
Deal found 4/4£200
Wed 29/414:50
SFO
-
ORD
1 stop7h 05m
Southwest
Sat 2/507:00
ORD
-
SFO
1 stop6h 50m
Southwest
Deal found 7/4£201
Wed 29/410:05
SFO
-
ORD
2 stops10h 50m
Southwest
Wed 6/510:30
ORD
-
SFO
2 stops10h 35m
Southwest
Deal found 6/4£202
Wed 13/506:20
SFO
-
ORD
1 stop6h 40m
Southwest
Wed 20/507:45
ORD
-
SFO
2 stops12h 45m
Southwest
Deal found 2/4£203
Wed 13/513:35
SFO
-
ORD
1 stop8h 22m
Delta
Sat 16/511:09
ORD
-
SFO
1 stop8h 40m
Delta
Deal found 6/4£205
Tue 26/507:20
SFO
-
ORD
2 stops9h 30m
Southwest
Sat 30/507:00
ORD
-
SFO
1 stop6h 50m
Southwest
Deal found 7/4£206
Tue 28/410:30
SFO
-
ORD
2 stops10h 25m
Southwest
Tue 5/519:35
ORD
-
SFO
2 stops17h 30m
Southwest
Deal found 6/4£206
Mon 27/405:25
SFO
-
ORD
1 stop7h 35m
Southwest
Tue 28/410:30
ORD
-
SFO
2 stops10h 35m
Southwest
Deal found 6/4£209
Mon 8/600:48
SFO
-
ORD
1 stop8h 43m
Delta
Tue 9/618:15
ORD
-
SFO
1 stop7h 26m
Delta
Deal found 7/4£209

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 7 April 2026.

Round-trip from

£194

One-way from

£89

Popular in

November

Cheapest in

September

Average price

£290

Good one-way deal

£278 or less
Delta
  • Delta
  • 16/6-1/7
  • 2 total stops
  • 13h 10m total
  • San Francisco to Chicago
Search Deals
American Airlines
  • American Airlines
  • 3/6
  • Nonstop
  • 4h 52m total
  • San Francisco to Chicago
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£33 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way flight from San Francisco to Chicago O'Hare Intl.
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 7 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

Tue 19/5

07:20-18:50

2 stops9h 30m

Chicago O'Hare Intl

Tue 26/5

19:35-11:05

2 stops17h 30m

£206

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 23/5

05:40-14:20

1 stop6h 40m

Chicago O'Hare Intl

Sat 30/5

07:00-11:50

1 stop6h 50m

£212

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 2/5

10:00-22:20

2 stops10h 20m

Chicago O'Hare Intl

Wed 6/5

10:30-19:05

2 stops10h 35m

£212

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 1/9

07:00-17:30

1 stop8h 30m

Chicago O'Hare Intl

Tue 8/9

14:55-20:19

1 stop7h 24m

£231

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 9/5

11:45-23:25

2 stops9h 40m

Chicago O'Hare Intl

Sun 24/5

06:15-13:45

2 stops9h 30m

£262

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 8/5

07:15-19:03

1 stop9h 48m

Chicago O'Hare Intl

Sun 10/5

19:59-10:07

1 stop16h 08m

£275

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 3/7

14:30-23:18

1 stop6h 48m

Chicago O'Hare Intl

Sat 11/7

17:00-22:33

1 stop7h 33m

£275

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 29/5

13:25-23:55

2 stops8h 30m

Chicago O'Hare Intl

Mon 1/6

13:35-22:25

2 stops10h 50m

£292

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 3/6

05:55-16:51

2 stops8h 56m

Chicago O'Hare Intl

Tue 16/6

08:36-13:10

1 stop6h 34m

£325

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 3/7

17:05-23:43

Nonstop4h 38m

Chicago O'Hare Intl

Tue 14/7

21:35-00:32

Nonstop4h 57m

£328

Flights are sorted by cheapest return flights first.

Deals found on 6/4

Showing 1-10 of 22 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?

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 3 April 2026.

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, October is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £94). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of £194). 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 7 April 2026.

When flying from San Francisco to Chicago O'Hare Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 51% versus a flight at midday.

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?

    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 64 outbound flights to Chicago O'Hare Intl per day from 0 airlines. San Francisco is conveniently located just 11.0 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 9h 30m. Southwest 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 Finnair (100%), Asiana Airlines (91%) and Fiji Airways (89%).

  • What are the cheapest flights from San Francisco to Chicago O'Hare Intl Airport?

    Looking at all options, your cheapest flight can be booked for £122. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for £146 on average, our data indicates £278 when flying from San Francisco to Chicago O'Hare Intl Airport.

  • 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 £94). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of £194). 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
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.