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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from £87

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
17 Mar — 24 Mar1
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 15 February 2026.

Mon 4/522:45
ORD
-
SFO
Nonstop4h 50m
United Airlines
Wed 6/500:45
SFO
-
ORD
Nonstop4h 22m
United Airlines
Deal found 13/2£179
Wed 1/406:25
ORD
-
SFO
Nonstop4h 51m
United Airlines
Fri 3/419:00
SFO
-
ORD
Nonstop4h 28m
United Airlines
Deal found 14/2£182
Wed 15/421:20
ORD
-
SFO
Nonstop4h 59m
United Airlines
Fri 17/400:45
SFO
-
ORD
Nonstop4h 22m
United Airlines
Deal found 11/2£185
Sun 6/906:45
ORD
-
SFO
Nonstop4h 33m
American Airlines
Sun 20/923:25
SFO
-
ORD
Nonstop4h 04m
American Airlines
Deal found 14/2£187
Wed 4/307:40
ORD
-
SFO
1 stop8h 08m
Delta
Wed 4/322:45
SFO
-
ORD
1 stop8h 56m
Delta
Deal found 11/2£188
Wed 11/307:00
ORD
-
SFO
1 stop10h 48m
Alaska Airlines
Thu 19/306:35
SFO
-
ORD
1 stop15h 24m
Alaska Airlines
Deal found 12/2£190
Fri 6/317:37
ORD
-
SFO
1 stop7h 48m
Delta
Tue 10/322:35
SFO
-
ORD
1 stop7h 55m
Delta
Deal found 11/2£192
Thu 5/315:54
ORD
-
SFO
1 stop10h 05m
Alaska Airlines
Wed 11/306:40
SFO
-
ORD
1 stop15h 19m
Alaska Airlines
Deal found 11/2£193
Sat 14/321:15
ORD
-
SFO
Nonstop5h 01m
United Airlines
Fri 20/318:44
SFO
-
ORD
Nonstop4h 15m
United Airlines
Deal found 13/2£194
Fri 20/306:17
ORD
-
SFO
Nonstop5h 05m
United Airlines
Mon 23/318:44
SFO
-
ORD
Nonstop4h 15m
United Airlines
Deal found 13/2£195
Fri 6/317:37
ORD
-
SFO
1 stop7h 48m
Delta
Sat 7/313:40
SFO
-
ORD
1 stop6h 12m
Delta
Deal found 11/2£195
Mon 30/320:55
ORD
-
SFO
1 stop23h 42m
Frontier
Mon 6/422:03
SFO
-
ORD
1 stop10h 47m
Frontier
Deal found 13/2£198

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 15 February 2026.

Round-trip from

£178

One-way from

£87

Popular in

November

Cheapest in

May

Average price

£281
United Airlines
  • United Airlines
  • 11/4-19/4
  • Nonstop
  • 9h 26m total
  • Chicago to San Francisco
Search Deals
Delta
  • Delta
  • 23/3
  • 1 total stop
  • 6h 49m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 15 February 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

O'Hare Intl

Fly to

San Francisco

Route

Depart

Return

Price

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 21/3

21:15-00:16

Nonstop5h 01m

San Francisco

Tue 24/3

23:59-06:17

Nonstop4h 18m

£188

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 21/3

21:15-00:16

Nonstop5h 01m

San Francisco

Mon 23/3

18:44-00:59

Nonstop4h 15m

£190

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 6/3

17:37-23:25

1 stop7h 48m

San Francisco

Wed 11/3

06:20-15:19

1 stop6h 59m

£192

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 19/3

06:17-09:22

Nonstop5h 05m

San Francisco

Sat 21/3

18:44-00:59

Nonstop4h 15m

£194

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 22/4

12:40-15:35

Nonstop4h 55m

San Francisco

Mon 27/4

22:50-05:27

Nonstop4h 37m

£204

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 16/5

06:20-09:11

Nonstop4h 51m

San Francisco

Sun 17/5

00:45-07:07

Nonstop4h 22m

£204

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 5/5

06:00-16:46

2 stops12h 46m

San Francisco

Sat 9/5

14:00-23:59

1 stop7h 59m

£205

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 21/3

07:20-16:07

1 stop10h 47m

San Francisco

Mon 23/3

09:46-18:05

1 stop6h 19m

£205

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 30/6

18:00-23:46

1 stop7h 46m

San Francisco

Sat 11/7

07:00-17:30

1 stop8h 30m

£208

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 2/6

15:43-21:45

1 stop8h 02m

San Francisco

Mon 8/6

07:50-18:46

1 stop8h 56m

£215

Flights are sorted by cheapest return flights first.

Deals found on 14/2

Showing 1-10 of 21 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 13 February 2026.

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 £59). Flying from Chicago O'Hare Intl Airport to San Francisco in February is currently the most expensive (average of £154). 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 15 February 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.

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 5h 01m. United Airlines provides one of the quickest options available for as low as £188. 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 (89%), British Airways (73%), Lufthansa (72%).

  • 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 £59). Flying from Chicago O'Hare Intl Airport to San Francisco in February is currently the most expensive (average of £154). 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
Pacific Grove

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Alternative routes for O'Hare Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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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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