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Cheap flights from San Francisco to Chicago O'Hare Intl Airport from £88

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
12 Feb — 19 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 September or April, booked 64 days in advance, depart on a Tuesday or Friday and return on a Tuesday

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 13 January 2026.

Round-trip from

£185

One-way from

£88

Popular in

November

Cheapest in

September

Average price

£264

Good round-trip deal

£253 or less

Good one-way deal

£117 or less
Alaska Airlines
  • Alaska Airlines
  • 2/2-4/2
  • 2 total stops
  • 24h 09m total
  • San Francisco to Chicago
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Alaska Airlines
  • Alaska Airlines
  • 14/4
  • 1 total stop
  • 10h 05m total
  • San Francisco to Chicago
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Highest demand for flights based on searches. 15% potential increase in price (£38 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£5 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 round-trip flight from San Francisco to Chicago O'Hare Intl.
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Price to beat on a one-way flight from San Francisco to Chicago O'Hare Intl.
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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 13 January 2026.

Mon 2/207:00
SFO
-
ORD
1 stop14h 37m
Alaska Airlines
Wed 4/209:00
ORD
-
SFO
1 stop9h 32m
Alaska Airlines
Deal found 12/1£185
Wed 22/407:15
SFO
-
ORD
1 stop9h 48m
Alaska Airlines
Tue 28/408:50
ORD
-
SFO
1 stop16h 58m
Alaska Airlines
Deal found 12/1£186
Wed 6/507:15
SFO
-
ORD
1 stop9h 48m
Alaska Airlines
Wed 13/509:00
ORD
-
SFO
1 stop10h 01m
Alaska Airlines
Deal found 12/1£188
Tue 24/215:13
SFO
-
ORD
Nonstop4h 16m
American Airlines
Tue 3/319:42
ORD
-
SFO
Nonstop4h 58m
American Airlines
Deal found 10/1£189
Wed 11/212:25
SFO
-
ORD
Nonstop4h 23m
United Airlines
Wed 18/220:20
ORD
-
SFO
Nonstop5h 04m
United Airlines
Deal found 12/1£190
Wed 11/222:54
SFO
-
ORD
1 stop8h 47m
Delta
Tue 17/214:20
ORD
-
SFO
1 stop10h 21m
Delta
Deal found 12/1£191
Sun 22/222:46
SFO
-
ORD
1 stop10h 05m
Frontier
Wed 4/311:51
ORD
-
SFO
1 stop11h 48m
Frontier
Deal found 10/1£192
Wed 22/407:15
SFO
-
ORD
1 stop9h 48m
Alaska Airlines
Mon 27/415:52
ORD
-
SFO
1 stop9h 56m
Alaska Airlines
Deal found 12/1£193
Tue 28/407:15
SFO
-
ORD
1 stop9h 48m
Alaska Airlines
Sat 2/514:19
ORD
-
SFO
1 stop7h 30m
Alaska Airlines
Deal found 13/1£194
Fri 6/207:00
SFO
-
ORD
1 stop8h 10m
Alaska Airlines
Mon 9/215:44
ORD
-
SFO
1 stop9h 03m
Alaska Airlines
Deal found 12/1£195
Tue 3/214:52
SFO
-
ORD
1 stop6h 45m
Alaska Airlines
Tue 10/214:06
ORD
-
SFO
2 stops10h 57m
Alaska Airlines
Deal found 12/1£196

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 13 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

Wed 11/2

23:51-06:20

Nonstop4h 29m

Chicago O'Hare Intl

Tue 17/2

06:25-09:27

Nonstop5h 02m

£190

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 4/2

06:00-13:38

1 stop5h 38m

Chicago O'Hare Intl

Wed 4/2

18:40-23:56

1 stop7h 16m

£191

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 7/4

22:35-08:30

1 stop7h 55m

Chicago O'Hare Intl

Tue 14/4

14:25-20:24

1 stop7h 59m

£191

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 4/3

22:50-05:12

Nonstop4h 22m

Chicago O'Hare Intl

Sat 7/3

21:15-00:16

Nonstop5h 01m

£193

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 22/4

07:15-19:03

1 stop9h 48m

Chicago O'Hare Intl

Fri 24/4

15:52-23:48

1 stop9h 56m

£193

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 1/5

21:10-06:40

1 stop7h 30m

Chicago O'Hare Intl

Tue 5/5

14:19-19:49

1 stop7h 30m

£195

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 25/2

00:40-08:40

1 stop6h 00m

Chicago O'Hare Intl

Sun 1/3

17:37-23:25

1 stop7h 48m

£195

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 2/5

06:30-12:57

Nonstop4h 27m

Chicago O'Hare Intl

Sat 9/5

06:25-09:16

Nonstop4h 51m

£195

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 23/2

14:05-23:56

1 stop7h 51m

Chicago O'Hare Intl

Sun 1/3

17:37-23:25

1 stop7h 48m

£195

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 27/2

06:05-15:19

1 stop7h 14m

Chicago O'Hare Intl

Sun 1/3

17:37-23:25

1 stop7h 48m

£195

Flights are sorted by cheapest return flights first.

Deals found on 12/1

Showing 1-10 of 24 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 9 January 2026.

The best time to book flights from San Francisco to Chicago O'Hare Intl Airport is 64 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 £93). 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 13 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 44 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 4h 29m. Alaska Airlines provides one of the quickest options available for as low as £190. 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 £134 on average, our data indicates £466 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 £93). 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

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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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