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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from £98

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Chicago O'Hare Intl to San Francisco are usually found in May or April, booked 82 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from O'Hare Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to San Francisco (SFO). 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 14 November 2025.

Round-trip from

£192

One-way from

£98

Popular in

November

Cheapest in

May

Average price

£318
Alaska Airlines
  • Alaska Airlines
  • 7/2-10/2
  • 2 total stops
  • 16h 23m total
  • Chicago to San Francisco
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Alaska Airlines
  • Alaska Airlines
  • 15/12
  • 1 total stop
  • 9h 10m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£27 potential increase over avg. return price).
Search Deals
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 November 2025
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Find flight deals from O'Hare Intl to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to San Francisco
Explore the most affordable flight options available from O'Hare Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 November 2025.

Sat 6/1210:45ORD - SFO
Nonstop4h 50mUnited Airlines
Sat 13/1222:40SFO - ORD
Nonstop4h 20mUnited Airlines
Deal found 12/11£197
Sun 14/1220:59ORD - SFO
1 stop13h 07mAlaska Airlines
Tue 6/119:20SFO - ORD
1 stop7h 42mAlaska Airlines
Deal found 13/11£198
Mon 8/1208:00ORD - SFO
1 stop17h 59mAlaska Airlines
Wed 10/1207:00SFO - ORD
1 stop14h 50mAlaska Airlines
Deal found 11/11£199
Wed 3/1220:59ORD - SFO
1 stop13h 07mAlaska Airlines
Tue 9/1208:09SFO - ORD
1 stop9h 45mAlaska Airlines
Deal found 13/11£201
Wed 17/1220:59ORD - SFO
1 stop13h 16mAlaska Airlines
Sat 10/107:00SFO - ORD
1 stop14h 37mAlaska Airlines
Deal found 12/11£202
Sat 6/1216:10ORD - SFO
Nonstop4h 50mUnited Airlines
Sun 7/1223:44SFO - ORD
Nonstop4h 18mUnited Airlines
Deal found 13/11£204
Sat 13/1208:55ORD - SFO
1 stop25h 11mAlaska Airlines
Thu 18/1207:00SFO - ORD
1 stop14h 59mAlaska Airlines
Deal found 13/11£205
Thu 11/1208:55ORD - SFO
1 stop16h 53mAlaska Airlines
Thu 18/1207:45SFO - ORD
1 stop19h 17mAlaska Airlines
Deal found 13/11£206
Tue 9/1220:59ORD - SFO
1 stop26h 47mAlaska Airlines
Thu 18/1207:00SFO - ORD
1 stop14h 59mAlaska Airlines
Deal found 13/11£207
Wed 3/1220:59ORD - SFO
1 stop13h 07mAlaska Airlines
Sat 6/1219:25SFO - ORD
1 stop8h 56mAlaska Airlines
Deal found 14/11£207
Wed 3/1220:59ORD - SFO
1 stop13h 07mAlaska Airlines
Mon 8/1207:00SFO - ORD
1 stop14h 50mAlaska Airlines
Deal found 13/11£210
Thu 27/1107:10ORD - SFO
Nonstop4h 45mUnited Airlines
Wed 3/1213:30SFO - ORD
Nonstop4h 14mUnited Airlines
Deal found 12/11£211

Cheapflights Fare Finder

 
Customise your flight search to find flights from O'Hare Intl to San Francisco 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 14 November 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Francisco that are best for you.

Fly from

O'Hare Intl

Fly to

San Francisco

Route

Depart

Return

Price

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 7/2

15:44-22:47

1 stop9h 03m

San Francisco

Tue 10/2

14:30-23:50

1 stop7h 20m

£192

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 24/2

07:00-14:02

1 stop9h 02m

San Francisco

Sun 1/3

20:47-12:01

1 stop13h 14m

£198

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 25/2

20:20-23:11

Nonstop4h 51m

San Francisco

Sun 1/3

23:59-06:19

Nonstop4h 20m

£204

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 25/1

16:16-19:09

Nonstop4h 53m

San Francisco

Sat 31/1

10:35-16:57

Nonstop4h 22m

£204

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 17/12

06:00-11:27

1 stop7h 27m

San Francisco

Fri 9/1

00:47-11:47

1 stop9h 00m

£212

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 16/1

09:00-11:57

Nonstop4h 57m

San Francisco

Sun 18/1

15:15-21:32

Nonstop4h 17m

£212

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 12/2

08:20-22:50

1 stop16h 30m

San Francisco

Tue 17/2

14:58-13:11

1 stop20h 13m

£213

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 7/2

15:35-10:42

1 stop21h 07m

San Francisco

Fri 13/2

19:28-16:33

1 stop19h 05m

£215

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 15/2

08:20-14:14

1 stop7h 54m

San Francisco

Wed 18/2

08:42-23:56

1 stop13h 14m

£215

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 16/1

14:20-22:54

1 stop10h 34m

San Francisco

Sun 18/1

09:50-23:53

2 stops12h 03m

£219

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 22 results
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Best time to book a flight from O'Hare Intl to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from O'Hare Intl 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 Chicago O'Hare Intl Airport to San Francisco

How far ahead should I book a flight from Chicago O'Hare Intl Airport to San Francisco?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to San Francisco. Price data was last updated on 7 November 2025.

The price you pay for your flight from Chicago O'Hare Intl Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 82 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 Chicago O'Hare Intl Airport to San Francisco?

Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of £61). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of £150). 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 ORD to SFO?

Find hourly flight availability from O'Hare Intl to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 49% on flights from Chicago O'Hare Intl Airport to San Francisco by exploring options for tickets in the evening.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to San Francisco. 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 into for flights to San Francisco from Chicago O'Hare Intl?

    San Francisco (SFO) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to San Francisco. You should not have trouble finding flights to San Francisco from Chicago O'Hare Intl; the airport handles an average of 53 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the San Francisco airport from Chicago O'Hare Intl. It is only a 11.8 mi journey from San Francisco (SFO) to San Francisco’s city center.

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

    A quick flight from Chicago O'Hare Intl Airport to San Francisco can take about 4h 53m. Alaska Airlines provides one of the quickest options available for as low as £204. Chicago O'Hare Intl Airport and San Francisco are separated by a distance of 1841 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to San Francisco one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at £104. Southwest flights start at £106 while deals on United Airlines start at £106 one-way.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to San Francisco?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago O'Hare Intl Airport to San Francisco on time: ANA (90%), Air China (86%), Qantas Airways (82%).

  • Can I find deals for flights from O'Hare Intl to San Francisco that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to San Francisco.

  • Can I find deals for business class flights from O'Hare Intl to San Francisco?

    Yes. Cheapflights offers flight deals from O'Hare Intl to San Francisco 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 Chicago O'Hare Intl Airport to San Francisco?

    Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of £61). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of £150). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
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San Bruno
Bodega Bay
Pacific Grove

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Fly with Cheapflights

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How does Cheapflights help users find flights from O'Hare Intl to San Francisco?

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

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from O'Hare Intl to San Francisco, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from O'Hare Intl to San Francisco become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from O'Hare Intl today and book when prices fit your budget.

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