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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from £103

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
15 Sep — 22 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 16 August 2026.

Mon 16/1118:28 -
1 stop6h 55m
Wed 2/1222:59 -
1 stop6h 47m
Deal found 14/8£190
Fri 11/1218:28 -
1 stop6h 55m
Mon 4/100:40 -
1 stop6h 03m
Deal found 13/8£191
Thu 24/1213:55 -
1 stop6h 43m
Wed 6/100:40 -
1 stop6h 03m
Deal found 11/8£191
Fri 27/1121:00 -
Nonstop4h 51m
Tue 15/1205:00 -
Nonstop4h 24m
Deal found 11/8£197
Fri 11/1209:53 -
1 stop9h 18m
Wed 16/1206:00 -
1 stop8h 47m
Deal found 14/8£197
Fri 9/1007:00 -
1 stop8h 08m
Sat 17/1014:15 -
1 stop7h 39m
Deal found 11/8£199
Wed 2/906:05 -
1 stop8h 55m
Fri 4/917:16 -
1 stop18h 06m
Deal found 12/8£203
Fri 4/920:09 -
Nonstop4h 46m
Mon 7/905:00 -
Nonstop4h 25m
Deal found 14/8£204
Fri 11/1209:53 -
1 stop9h 18m
Fri 1/113:50 -
1 stop7h 56m
Deal found 13/8£205
Sat 5/914:18 -
1 stop9h 24m
Sat 12/910:32 -
1 stop6h 49m
Deal found 15/8£205
Fri 4/918:48 -
1 stop7h 07m
Sun 6/905:36 -
1 stop8h 41m
Deal found 12/8£206
Sat 7/1121:57 -
Nonstop4h 56m
Tue 24/1123:30 -
Nonstop4h 17m
Deal found 13/8£208

Find 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 16 August 2026.

Round-trip from

£190

One-way from

£103

Popular in

June

Cheapest in

September

Average price

£309
Delta
  • Delta
  • 16/11-2/12
  • 2 total stops
  • 13h 42m total
  • Chicago to San Francisco
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Delta
  • Delta
  • 4/9
  • 1 total stop
  • 9h 28m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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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 16 August 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Mon 14/12

14:44-22:46

1 stop10h 02m

San Francisco

Thu 17/12

14:15-23:59

1 stop7h 44m

£190

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Wed 25/11

19:17-23:59

1 stop6h 42m

San Francisco

Tue 1/12

23:59-09:05

1 stop7h 06m

£223

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sun 27/9

07:44-10:33

Nonstop4h 49m

San Francisco

Tue 13/10

18:38-00:55

Nonstop4h 17m

£235

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Tue 8/9

07:20-14:45

1 stop9h 25m

San Francisco

Tue 15/9

07:08-19:21

1 stop10h 13m

£236

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Thu 1/10

06:07-08:45

Nonstop4h 38m

San Francisco

Sat 3/10

23:30-05:59

Nonstop4h 29m

£236

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Thu 17/9

07:40-10:26

Nonstop4h 46m

San Francisco

Wed 23/9

06:00-12:29

Nonstop4h 29m

£236

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sat 3/10

21:40-00:30

Nonstop4h 50m

San Francisco

Tue 6/10

06:10-12:45

Nonstop4h 35m

£249
Fastest return journey

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Tue 22/9

06:00-08:38

Nonstop4h 38m

San Francisco

Fri 2/10

18:38-00:55

Nonstop4h 17m

£256

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Fri 25/12

07:35-15:08

1 stop9h 33m

San Francisco

Wed 30/12

06:00-18:32

1 stop10h 32m

£267

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sun 13/9

07:40-10:26

Nonstop4h 46m

San Francisco

Tue 15/9

06:00-12:29

Nonstop4h 29m

£304

Flights are sorted by cheapest return flights first.

Deals found on 11/8

Showing 1-10 of 22 resultsSorted by cheapest first
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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?

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 71 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, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of £251). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of £353). 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 16 August 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 71% on flights from Chicago O'Hare Intl Airport to San Francisco by exploring options for tickets in the afternoon.

How much does it cost for a return flight from Chicago O'Hare Intl Airport to San Francisco?

Airfare is below average for this route at the moment.

Chicago O'Hare Intl Airport to San Francisco flights typically cost between £245 and £406 in November.
The cheapest return price found within the last 5 days was £190 on Delta (16 Nov–2 Dec).

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 76 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 11.0 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 49m. Delta provides one of the quickest options available for as low as £235. 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 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 (75%), Air China (74%), Austrian Airlines (70%).

  • 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, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of £251). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of £353). 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
San Bruno
Roseville
Newark
Bodega Bay
Sunnyvale
South San Francisco

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Alternative routes for O'Hare Intl to San Francisco

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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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from O'Hare Intl today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from O'Hare Intl to San Francisco for you. Better yet — we are completely free to use.

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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