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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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
1 Feb — 8 Feb1
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 Friday 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 2 January 2026.

Thu 19/306:35SFO - ORD
1 stop15h 24mAlaska Airlines
Wed 25/316:10ORD - SFO
1 stop8h 42mAlaska Airlines
Deal found 31/12£192
Sat 7/214:05SFO - ORD
1 stop7h 51mDelta
Fri 13/214:20ORD - SFO
1 stop10h 21mDelta
Deal found 1/1£193
Sun 18/107:00SFO - ORD
1 stop8h 10mAlaska Airlines
Sat 24/115:44ORD - SFO
1 stop9h 03mAlaska Airlines
Deal found 1/1£194
Thu 29/100:40SFO - ORD
1 stop6h 00mDelta
Fri 30/118:45ORD - SFO
1 stop7h 02mDelta
Deal found 2/1£195
Sun 22/223:59SFO - ORD
Nonstop4h 20mUnited Airlines
Wed 25/206:25ORD - SFO
Nonstop5h 02mUnited Airlines
Deal found 1/1£197
Sat 7/214:05SFO - ORD
1 stop7h 51mDelta
Mon 16/217:37ORD - SFO
1 stop7h 48mDelta
Deal found 1/1£198
Wed 18/306:00SFO - ORD
1 stop8h 43mDelta
Mon 30/313:57ORD - SFO
1 stop7h 10mDelta
Deal found 2/1£200
Fri 20/306:35SFO - ORD
1 stop10h 27mAlaska Airlines
Wed 25/316:10ORD - SFO
1 stop8h 42mAlaska Airlines
Deal found 2/1£200
Sun 22/306:05SFO - ORD
1 stop15h 47mDelta
Wed 1/414:38ORD - SFO
1 stop7h 55mDelta
Deal found 2/1£203
Tue 20/114:35SFO - ORD
1 stop7h 18mDelta
Fri 23/114:20ORD - SFO
2 stops10h 34mDelta
Deal found 2/1£204
Tue 3/209:55SFO - ORD
2 stops10h 40mSouthwest
Wed 4/216:25ORD - SFO
1 stop7h 25mSouthwest
Deal found 1/1£206
Wed 18/306:00SFO - ORD
1 stop8h 43mDelta
Fri 3/419:05ORD - SFO
1 stop6h 46mDelta
Deal found 2/1£206

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 2 January 2026.

Round-trip from

£192

One-way from

£95

Popular in

December

Cheapest in

January

Average price

£219

Good one-way deal

£117 or less
Alaska Airlines
  • Alaska Airlines
  • 19/3-25/3
  • 2 total stops
  • 24h 06m total
  • San Francisco to Chicago
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United Airlines
  • United Airlines
  • 24/1
  • Nonstop
  • 4h 15m total
  • San Francisco to Chicago
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£25 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Price to beat on a one-way flight from San Francisco to Chicago O'Hare Intl.
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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 2 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 6/2

23:05-10:44

1 stop9h 39m

Chicago O'Hare Intl

Sun 8/2

17:35-23:25

1 stop7h 50m

£195

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sun 22/2

23:59-06:19

Nonstop4h 20m

Chicago O'Hare Intl

Wed 25/2

06:25-09:27

Nonstop5h 02m

£197

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sun 8/3

23:59-06:19

Nonstop4h 20m

Chicago O'Hare Intl

Tue 10/3

16:35-19:34

Nonstop4h 59m

£197

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 2/4

22:40-09:10

1 stop8h 30m

Chicago O'Hare Intl

Tue 14/4

07:00-15:59

1 stop10h 59m

£200

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 8/4

00:10-08:40

1 stop6h 30m

Chicago O'Hare Intl

Wed 22/4

12:46-19:01

1 stop8h 15m

£200

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 25/2

05:45-16:41

1 stop8h 56m

Chicago O'Hare Intl

Mon 2/3

07:40-16:09

2 stops10h 29m

£204

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 20/1

14:35-23:53

1 stop7h 18m

Chicago O'Hare Intl

Fri 23/1

14:20-22:54

2 stops10h 34m

£204

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 28/1

06:00-13:38

1 stop5h 38m

Chicago O'Hare Intl

Wed 4/2

07:30-17:47

2 stops12h 17m

£204

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 11/2

09:50-23:53

2 stops12h 03m

Chicago O'Hare Intl

Sat 14/2

07:15-12:07

1 stop6h 52m

£204

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 31/3

22:40-09:10

1 stop8h 30m

Chicago O'Hare Intl

Fri 3/4

19:05-23:51

1 stop6h 46m

£206

Flights are sorted by cheapest return flights first.

Deals found on 31/12

Showing 1-10 of 22 results
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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 26 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 £79). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of £191). 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 2 January 2026.

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 43 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 8h 47m. Delta provides one of the quickest options available for as low as £195. 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 Gulf Air (100%), Qatar Airways (97%) and Iberia (93%).

  • 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 £117. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for £202 on average, our data indicates £420 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, December is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £79). Flying from San Francisco to Chicago O'Hare Intl Airport in November is currently the most expensive (average of £191). 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

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Alternative routes for San Francisco to O'Hare Intl

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Los Angeles to O'Hare Intl flights

Fly with Cheapflights

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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!

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