Cheap flights from San Francisco to Chicago O'Hare Intl Airport from £95
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 16/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
19 Sep — 26 Sep1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Francisco to Chicago O'Hare Intl are usually found in September or January, booked 67 days in advance, depart on a Monday or Tuesday and return on a Monday
Cheap flight deals from San Francisco to O'Hare Intl
Enter your travel dates to find the best prices.
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Best
Direct
Last-minute
One-way
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 20 August 2026.
Fri 25/900:05 -
1 stop6h 33m
Sat 26/915:29 -
1 stop7h 03m
Deal found 20/8£189
Mon 5/1022:42 -
Nonstop4h 19m
Thu 8/1021:40 -
Nonstop4h 50m
Deal found 17/8£191
Thu 1/1005:00 -
Nonstop4h 25m
Thu 8/1021:40 -
Nonstop4h 50m
Deal found 19/8£192
Fri 13/1122:59 -
1 stop9h 46m
Mon 23/1107:40 -
1 stop8h 12m
Deal found 17/8£197
Fri 11/900:05 -
1 stop6h 33m
Sat 12/917:30 -
1 stop6h 51m
Deal found 18/8£204
Sat 12/922:35 -
Nonstop4h 26m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 18/8£205
Tue 6/1007:10 -
2 stops12h 55m
Tue 13/1017:30 -
1 stop8h 26m
Deal found 16/8£210
Thu 10/915:10 -
Nonstop4h 35m
Sun 13/906:00 -
Nonstop4h 38m
Deal found 17/8£211
Fri 11/922:35 -
Nonstop4h 26m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 18/8£212
Tue 15/1217:10 -
Nonstop4h 17m
Mon 4/121:51 -
Nonstop5h 08m
Deal found 20/8£214
Fri 16/1018:38 -
Nonstop4h 17m
Sun 18/1006:07 -
Nonstop4h 38m
Deal found 18/8£219
Wed 16/911:02 -
1 stop7h 27m
Wed 23/921:06 -
Nonstop4h 50m
Deal found 15/8£220
Best flights from San Francisco to O'Hare Intl
Discover carefully curated flight deals from San Francisco to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.
Thu 10/915:10 -
Nonstop4h 35m
Sun 13/906:00 -
Nonstop4h 38m
Deal found 19/8£219
Wed 21/1007:10 -
2 stops12h 55m
Mon 2/1106:35 -
1 stop8h 33m
Deal found 19/8£225
Fri 30/1008:20 -
1 stop8h 33m
Wed 25/1114:16 -
1 stop8h 29m
Deal found 15/8£228
Mon 23/1118:42 -
Nonstop4h 17m
Wed 2/1206:00 -
Nonstop4h 44m
Deal found 16/8£221
Tue 3/1107:04 -
1 stop9h 55m
Wed 25/1114:16 -
1 stop8h 29m
Deal found 15/8£228
Sat 12/916:10 -
Nonstop4h 33m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 19/8£222
Fri 11/905:00 -
Nonstop4h 23m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 16/8£234
Fri 25/900:35 -
Nonstop4h 21m
Wed 30/916:05 -
Nonstop4h 49m
Deal found 18/8£248
Fri 11/900:55 -
Nonstop4h 21m
Wed 16/920:09 -
Nonstop4h 46m
Deal found 19/8£248
Tue 22/900:35 -
Nonstop4h 21m
Sat 26/907:44 -
Nonstop4h 46m
Deal found 18/8£248
Fri 25/900:35 -
Nonstop4h 21m
Mon 28/921:40 -
Nonstop4h 50m
Deal found 19/8£248
Direct flights from San Francisco to O'Hare Intl
Explore direct flight options from San Francisco to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.
Mon 5/1022:42 -
Nonstop4h 19m
Thu 8/1021:40 -
Nonstop4h 50m
Deal found 17/8£191
Thu 1/1005:00 -
Nonstop4h 25m
Thu 8/1021:40 -
Nonstop4h 50m
Deal found 19/8£192
Fri 9/1018:38 -
Nonstop4h 17m
Sat 17/1005:59 -
Nonstop4h 38m
Deal found 18/8£197
Sat 12/922:35 -
Nonstop4h 26m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 18/8£205
Thu 10/915:10 -
Nonstop4h 35m
Sun 13/906:00 -
Nonstop4h 38m
Deal found 17/8£211
Fri 11/922:35 -
Nonstop4h 26m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 18/8£212
Tue 15/1217:10 -
Nonstop4h 17m
Mon 4/121:51 -
Nonstop5h 08m
Deal found 20/8£214
Fri 16/1018:38 -
Nonstop4h 17m
Sun 18/1006:07 -
Nonstop4h 38m
Deal found 18/8£219
Wed 7/1000:35 -
Nonstop4h 21m
Tue 13/1021:40 -
Nonstop4h 50m
Deal found 17/8£221
Thu 10/918:38 -
Nonstop4h 21m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 18/8£222
Last-minute flights from San Francisco to O'Hare Intl
Discover last-minute flight deals from San Francisco to O'Hare Intl. Data last updated 20 August 2026 and is based on user searches.
Thu 10/915:10 -
Nonstop4h 35m
Sun 13/906:00 -
Nonstop4h 38m
Deal found 17/8£211
Thu 10/900:35 -
Nonstop4h 21m
Sun 13/905:00 -
Nonstop4h 41m
Deal found 19/8£219
Thu 10/918:38 -
Nonstop4h 21m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 18/8£222
Fri 11/922:59 -
1 stop6h 58m
Mon 14/918:59 -
1 stop6h 41m
Deal found 19/8£197
Fri 11/900:05 -
1 stop6h 33m
Sat 12/917:30 -
1 stop6h 51m
Deal found 18/8£204
Fri 11/922:35 -
Nonstop4h 26m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 18/8£212
Sat 12/922:35 -
Nonstop4h 26m
Mon 14/905:00 -
Nonstop4h 41m
Deal found 18/8£205
Tue 15/908:25 -
1 stop8h 56m
Tue 22/907:20 -
1 stop17h 52m
Deal found 18/8£221
Wed 16/911:02 -
1 stop7h 27m
Wed 23/921:06 -
Nonstop4h 50m
Deal found 15/8£220
Mon 21/916:59 -
2 stops12h 57m
Mon 28/917:44 -
1 stop8h 07m
Deal found 17/8£210
Fri 25/900:05 -
1 stop6h 33m
Sat 26/915:29 -
1 stop7h 03m
Deal found 20/8£189
One-way flights from San Francisco to O'Hare Intl
Search for one-way flight options from San Francisco to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.
Fri 18/918:38 -
Nonstop4h 21m
Deal found 18/8£95
Fri 16/1023:59 -
2 stops22h 25m
Deal found 15/8£97
Fri 11/922:59 -
1 stop9h 38m
Deal found 17/8£102
Mon 7/905:00 -
Nonstop4h 25m
Deal found 17/8£103
Wed 14/1015:11 -
2 stops16h 10m
Deal found 15/8£105
Tue 8/915:10 -
Nonstop4h 35m
Deal found 18/8£106
Fri 23/1022:55 -
1 stop9h 34m
Deal found 18/8£110
Mon 7/909:33 -
2 stops32h 42m
Deal found 18/8£112
Fri 18/923:58 -
2 stops22h 25m
Deal found 19/8£115
Wed 7/1000:35 -
Nonstop4h 21m
Deal found 20/8£118
Find 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 20 August 2026.
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 7,457,451 searches. Data last updated 20 August 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
Fly to
Route
Depart
Return
Price
Cheapest return flight
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Thu 10/9
15:10-21:45
Nonstop4h 35m
Chicago O'Hare Intl
Sun 13/9
06:00-08:38
Nonstop4h 38m
£219
Fastest return journey
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Mon 23/11
18:42-00:59
Nonstop4h 17m
Chicago O'Hare Intl
Wed 2/12
06:00-08:44
Nonstop4h 44m
£221
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Sat 12/9
16:10-22:43
Nonstop4h 33m
Chicago O'Hare Intl
Mon 14/9
05:00-07:41
Nonstop4h 41m
£222
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Wed 21/10
07:10-22:05
2 stops12h 55m
Chicago O'Hare Intl
Mon 2/11
06:35-13:08
1 stop8h 33m
£225
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Fri 30/10
08:20-18:53
1 stop8h 33m
Chicago O'Hare Intl
Wed 25/11
14:16-20:45
1 stop8h 29m
£228
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Tue 3/11
07:04-18:59
1 stop9h 55m
Chicago O'Hare Intl
Wed 25/11
14:16-20:45
1 stop8h 29m
£228
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Fri 11/9
05:00-11:23
Nonstop4h 23m
Chicago O'Hare Intl
Mon 14/9
05:00-07:41
Nonstop4h 41m
£234
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Fri 25/9
00:35-06:56
Nonstop4h 21m
Chicago O'Hare Intl
Wed 30/9
16:05-18:54
Nonstop4h 49m
£248
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Fri 11/9
00:55-07:16
Nonstop4h 21m
Chicago O'Hare Intl
Wed 16/9
20:09-22:55
Nonstop4h 46m
£248
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Tue 22/9
00:35-06:56
Nonstop4h 21m
Chicago O'Hare Intl
Sat 26/9
07:44-10:30
Nonstop4h 46m
£248
Flights are sorted by cheapest return flights first.
Deals found on 18/8
Showing 1-10 of 23 resultsSorted by cheapest first
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2
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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.
SFO-ORD
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
Prices
Airlines
Delays
How far ahead should I book a flight from San Francisco to Chicago O'Hare Intl Airport?
The best time to book flights from San Francisco to Chicago O'Hare Intl Airport is 66 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, September is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £262). Flying from San Francisco to Chicago O'Hare Intl Airport in June is currently the most expensive (average of £374). 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 20 August 2026.
When flying from San Francisco to Chicago O'Hare Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 42% versus a flight at midday.
How much does it cost for a return flight from San Francisco to Chicago O'Hare Intl Airport?
Airfare is below average for this route at the moment.
San Francisco to Chicago O'Hare Intl Airport flights typically cost between £226 and £366 in September.The cheapest return price found within the last 5 days was £189 on Delta (25 Sept–26 Sept).
Weekly flight availability from San Francisco to Chicago O'Hare Intl Airport
Explore weekly flight availability from San Francisco to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 20 August 2026.
The most flights from SFO to ORD are scheduled on a Wednesday (94 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).
How often are flights from San Francisco to Chicago delayed?
About 10% of weekly flights between San Francisco and Chicago have experienced delays in the past year, with the average delay time being 188 minutes.
What is the most punctual flight time for San Francisco to Chicago flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Francisco to Chicago flights?
Over the past year, United Airlines have had the lowest number of delays on this route, with just 9% of flights being delayed.
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 62 outbound flights to Chicago O'Hare Intl per day from 0 airlines. San Francisco is conveniently located just 11.0 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 33m. United Airlines provides one of the quickest options available for as low as £222. 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 ITA Airways (87%), Austrian Airlines (79%) and Brussels Airlines (79%).
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 £139. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for £161 on average, our data indicates £184 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, September is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £262). Flying from San Francisco to Chicago O'Hare Intl Airport in June is currently the most expensive (average of £374). 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.
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 20 August 2026.
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 20 August 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from San Francisco to O'Hare Intl?
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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