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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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
11 Jun — 18 Jun1
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 12 May 2026.

Thu 4/606:13
ORD
-
SFO
Nonstop4h 37m
United Airlines
Wed 10/623:30
SFO
-
ORD
Nonstop4h 23m
United Airlines
Deal found 9/5£200
Wed 1/706:30
ORD
-
SFO
1 stop8h 40m
Delta
Tue 7/709:55
SFO
-
ORD
1 stop7h 02m
Delta
Deal found 10/5£204
Thu 1/1006:01
ORD
-
SFO
1 stop6h 52m
Alaska Airlines
Mon 5/1010:35
SFO
-
ORD
1 stop11h 24m
Alaska Airlines
Deal found 8/5£206
Wed 10/606:13
ORD
-
SFO
Nonstop4h 37m
United Airlines
Tue 16/623:30
SFO
-
ORD
Nonstop4h 23m
United Airlines
Deal found 7/5£206
Tue 30/608:55
ORD
-
SFO
Nonstop4h 49m
United Airlines
Tue 30/618:34
SFO
-
ORD
Nonstop4h 25m
United Airlines
Deal found 9/5£207
Tue 30/608:55
ORD
-
SFO
Nonstop4h 49m
United Airlines
Tue 7/700:50
SFO
-
ORD
Nonstop4h 26m
United Airlines
Deal found 10/5£208
Sat 30/512:00
ORD
-
SFO
1 stop11h 04m
Delta
Sat 6/622:25
SFO
-
ORD
1 stop7h 40m
Delta
Deal found 8/5£209
Thu 28/508:00
ORD
-
SFO
2 stops8h 35m
Southwest
Tue 2/613:45
SFO
-
ORD
1 stop7h 10m
Southwest
Deal found 7/5£210
Thu 4/607:30
ORD
-
SFO
Nonstop4h 49m
United Airlines
Sat 6/623:30
SFO
-
ORD
Nonstop4h 23m
United Airlines
Deal found 11/5£211
Thu 28/506:13
ORD
-
SFO
Nonstop4h 37m
United Airlines
Sat 6/616:21
SFO
-
ORD
Nonstop4h 38m
United Airlines
Deal found 7/5£214
Mon 8/614:07
ORD
-
SFO
1 stop8h 52m
Delta
Wed 10/606:00
SFO
-
ORD
1 stop10h 42m
Delta
Deal found 11/5£215
Wed 3/618:20
ORD
-
SFO
1 stop7h 43m
Delta
Tue 9/613:38
SFO
-
ORD
1 stop8h 01m
Delta
Deal found 8/5£217

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 12 May 2026.

Round-trip from

£200

One-way from

£98

Popular in

April

Cheapest in

September

Average price

£290

Good one-way deal

£98 or less
United Airlines
  • United Airlines
  • 26/8-31/8
  • Nonstop
  • 8h 59m total
  • Chicago to San Francisco
Search Deals
United Airlines
  • United Airlines
  • 1/6
  • Nonstop
  • 4h 43m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£27 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 May 2026
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Price to beat on a one-way flight from Chicago O'Hare Intl to San Francisco.
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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 12 May 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 - SFO

ORDSFO

Chicago O'Hare Intl

Wed 10/6

12:45-15:28

Nonstop4h 43m

San Francisco

Thu 11/6

23:30-05:53

Nonstop4h 23m

£220

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 25/9

18:25-21:22

Nonstop4h 57m

San Francisco

Mon 28/9

23:30-05:57

Nonstop4h 27m

£235
Fastest return journey

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 9/8

06:10-08:47

Nonstop4h 37m

San Francisco

Wed 12/8

05:00-11:25

Nonstop4h 25m

£244

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 6/6

07:30-10:19

Nonstop4h 49m

San Francisco

Sun 21/6

22:35-04:58

Nonstop4h 23m

£255

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 26/6

20:04-22:57

Nonstop4h 53m

San Francisco

Sun 28/6

00:50-07:16

Nonstop4h 26m

£260

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 9/6

21:48-00:45

Nonstop4h 57m

San Francisco

Wed 10/6

23:30-05:53

Nonstop4h 23m

£262

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 8/6

20:09-23:02

Nonstop4h 53m

San Francisco

Thu 11/6

23:30-05:57

Nonstop4h 27m

£280

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 9/7

07:30-10:19

Nonstop4h 49m

San Francisco

Wed 15/7

18:34-00:59

Nonstop4h 25m

£284

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 11/8

07:40-10:29

Nonstop4h 49m

San Francisco

Wed 12/8

05:00-11:25

Nonstop4h 25m

£291

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 23/5

09:00-17:01

1 stop10h 01m

San Francisco

Tue 2/6

16:45-06:20

2 stops11h 35m

£297

Flights are sorted by cheapest return flights first.

Deals found on 11/5

Showing 1-10 of 23 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 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, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of £226). Flying from Chicago O'Hare Intl Airport to San Francisco in April is currently the most expensive (average of £325). 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 12 May 2026.

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.

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

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 77 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. United Airlines provides one of the quickest options available for as low as £217. 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 (95%), Air China (85%), China Southern (80%).

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

    While on average a flight from Chicago O'Hare Intl Airport to San Francisco is generally £138, our data shows the cheapest flight currently is £98. When looking at the most popular route, (Chicago O'Hare Intl - San Francisco), you can expect to pay £219 for that flight.

  • 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 £226). Flying from Chicago O'Hare Intl Airport to San Francisco in April is currently the most expensive (average of £325). 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
San Bruno
Bodega Bay
South San Francisco
Sunnyvale

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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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