Cheap flights from San Francisco to Chicago O'Hare Intl Airport from £74
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 24/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
7 Sep — 14 Sep1
Return
1 adult
Economy
Cheapflights Tip: The best prices from San Francisco to Chicago O'Hare Intl are usually found in January or April, booked 67 days in advance, depart on a Wednesday or Saturday and return on a Monday
Cheap 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 2 September 2025.
Find flight deals from San Francisco to O'Hare Intl
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 2 September 2025.
Wed 15/1006:34SFO - ORD
1 stop15h 19mFrontier
Wed 22/1007:15ORD - SFO
1 stop17h 12mFrontier
Deal found 31/8£151
Wed 12/1107:00SFO - ORD
1 stop14h 59mAlaska Airlines
Tue 18/1114:54ORD - SFO
1 stop9h 07mAlaska Airlines
Deal found 1/9£166
Sat 25/1023:00SFO - ORD
Nonstop4h 13mUnited Airlines
Fri 31/1017:16ORD - SFO
Nonstop4h 52mUnited Airlines
Deal found 31/8£166
Tue 23/906:30SFO - ORD
Nonstop4h 31mUnited Airlines
Wed 1/1021:13ORD - SFO
Nonstop4h 46mUnited Airlines
Deal found 31/8£177
Tue 4/1107:00SFO - ORD
1 stop9h 59mAlaska Airlines
Sat 8/1109:20ORD - SFO
1 stop14h 35mAlaska Airlines
Deal found 2/9£180
Sat 18/1005:15SFO - ORD
Nonstop4h 31mUnited Airlines
Tue 21/1015:47ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 2/9£181
Thu 2/1005:15SFO - ORD
Nonstop4h 31mUnited Airlines
Tue 7/1014:35ORD - SFO
Nonstop4h 45mUnited Airlines
Deal found 1/9£182
Thu 27/1107:00SFO - ORD
Nonstop4h 23mUnited Airlines
Thu 4/1209:00ORD - SFO
Nonstop4h 49mUnited Airlines
Deal found 1/9£185
Sat 25/1013:00SFO - ORD
2 stops8h 05mSouthwest
Fri 31/1006:15ORD - SFO
1 stop6h 20mSouthwest
Deal found 2/9£186
Thu 2/1018:35SFO - ORD
Nonstop4h 19mUnited Airlines
Sat 4/1015:47ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 2/9£187
Sat 18/1008:41SFO - ORD
1 stop13h 18mAlaska Airlines
Tue 21/1019:59ORD - SFO
1 stop20h 02mAlaska Airlines
Deal found 30/8£188
Thu 25/916:55SFO - ORD
Nonstop4h 17mUnited Airlines
Mon 29/916:25ORD - SFO
Nonstop4h 38mUnited Airlines
Deal found 1/9£188
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 2 September 2025.
Sat 18/1008:41SFO - ORD
1 stop13h 18mAlaska Airlines
Tue 21/1019:59ORD - SFO
1 stop17h 07mAlaska Airlines
Deal found 2/9£166
Wed 1/1023:00SFO - ORD
Nonstop4h 13mUnited Airlines
Wed 8/1006:15ORD - SFO
Nonstop4h 38mUnited Airlines
Deal found 1/9£177
Wed 15/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Wed 22/1008:20ORD - SFO
1 stop11h 25mAlaska Airlines
Deal found 1/9£166
Tue 23/906:30SFO - ORD
Nonstop4h 31mUnited Airlines
Tue 30/915:47ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 1/9£177
Wed 5/1107:00SFO - ORD
1 stop14h 59mAlaska Airlines
Wed 12/1109:20ORD - SFO
1 stop14h 41mAlaska Airlines
Deal found 31/8£166
Tue 11/1123:44SFO - ORD
Nonstop4h 18mUnited Airlines
Tue 18/1109:10ORD - SFO
Nonstop4h 46mUnited Airlines
Deal found 1/9£177
Wed 8/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Wed 15/1008:20ORD - SFO
1 stop7h 41mAlaska Airlines
Deal found 31/8£166
Wed 25/218:40SFO - ORD
Nonstop4h 19mUnited Airlines
Wed 4/306:30ORD - SFO
Nonstop4h 50mUnited Airlines
Deal found 30/8£177
Mon 20/1021:17SFO - ORD
1 stop15h 33mAlaska Airlines
Tue 21/1019:59ORD - SFO
1 stop17h 07mAlaska Airlines
Deal found 1/9£180
Sat 18/1005:15SFO - ORD
Nonstop4h 31mUnited Airlines
Tue 21/1015:47ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 2/9£181
Wed 8/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Tue 14/1019:59ORD - SFO
1 stop20h 02mAlaska Airlines
Deal found 2/9£180
Wed 1/1007:00SFO - ORD
Nonstop4h 32mUnited Airlines
Sat 4/1012:53ORD - SFO
Nonstop4h 37mUnited Airlines
Deal found 2/9£181
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 2 September 2025.
Sat 25/1023:00SFO - ORD
Nonstop4h 13mUnited Airlines
Fri 31/1017:16ORD - SFO
Nonstop4h 52mUnited Airlines
Deal found 31/8£166
Tue 23/906:30SFO - ORD
Nonstop4h 31mUnited Airlines
Wed 1/1021:13ORD - SFO
Nonstop4h 46mUnited Airlines
Deal found 31/8£177
Sat 18/1005:15SFO - ORD
Nonstop4h 31mUnited Airlines
Tue 21/1015:47ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 2/9£181
Thu 2/1005:15SFO - ORD
Nonstop4h 31mUnited Airlines
Tue 7/1014:35ORD - SFO
Nonstop4h 45mUnited Airlines
Deal found 1/9£182
Thu 27/1107:00SFO - ORD
Nonstop4h 23mUnited Airlines
Thu 4/1209:00ORD - SFO
Nonstop4h 49mUnited Airlines
Deal found 1/9£185
Thu 2/1018:35SFO - ORD
Nonstop4h 19mUnited Airlines
Sat 4/1015:47ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 2/9£187
Thu 25/916:55SFO - ORD
Nonstop4h 17mUnited Airlines
Mon 29/916:25ORD - SFO
Nonstop4h 38mUnited Airlines
Deal found 1/9£188
Wed 8/1018:35SFO - ORD
Nonstop4h 19mUnited Airlines
Thu 9/1006:15ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 31/8£202
Thu 18/1205:00SFO - ORD
Nonstop4h 25mUnited Airlines
Tue 23/1222:00ORD - SFO
Nonstop5h 04mUnited Airlines
Deal found 31/8£202
Thu 25/1205:00SFO - ORD
Nonstop4h 25mUnited Airlines
Thu 1/122:00ORD - SFO
Nonstop5h 04mUnited Airlines
Deal found 31/8£205
Mon 6/1018:35SFO - ORD
Nonstop4h 19mUnited Airlines
Thu 9/1006:15ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 31/8£208
Fri 3/1023:33SFO - ORD
Nonstop4h 22mUnited Airlines
Tue 7/1010:49ORD - SFO
Nonstop4h 46mUnited Airlines
Deal found 31/8£211
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 2 September 2025 and is based on user searches.
Tue 16/916:10SFO - ORD
1 stop15h 46mDelta
Tue 23/911:20ORD - SFO
1 stop9h 28mDelta
Deal found 2/9£222
Mon 22/923:59SFO - ORD
Nonstop4h 25mUnited Airlines
Sat 27/919:40ORD - SFO
Nonstop4h 51mUnited Airlines
Deal found 1/9£187
Tue 23/906:30SFO - ORD
Nonstop4h 31mUnited Airlines
Wed 1/1021:13ORD - SFO
Nonstop4h 46mUnited Airlines
Deal found 31/8£177
Tue 23/908:35SFO - ORD
2 stops10h 55mSouthwest
Tue 30/913:30ORD - SFO
2 stops10h 55mSouthwest
Deal found 1/9£211
Wed 24/913:45SFO - ORD
1 stop8h 10mDelta
Tue 4/1110:30ORD - SFO
1 stop9h 21mDelta
Deal found 1/9£191
Thu 25/916:55SFO - ORD
Nonstop4h 17mUnited Airlines
Mon 29/916:25ORD - SFO
Nonstop4h 38mUnited Airlines
Deal found 1/9£188
Fri 26/900:45SFO - ORD
1 stop5h 43mDelta
Wed 8/1007:37ORD - SFO
1 stop10h 28mDelta
Deal found 2/9£197
Fri 26/900:45SFO - ORD
1 stop5h 43mDelta
Sat 11/1016:56ORD - SFO
1 stop7h 39mDelta
Deal found 1/9£203
Fri 26/905:15SFO - ORD
Nonstop4h 31mUnited Airlines
Mon 29/918:32ORD - SFO
Nonstop4h 48mUnited Airlines
Deal found 1/9£217
Sat 27/914:42SFO - ORD
1 stop7h 21mAlaska Airlines
Wed 8/1008:20ORD - SFO
1 stop7h 41mAlaska Airlines
Deal found 2/9£190
Mon 29/916:55SFO - ORD
Nonstop4h 17mUnited Airlines
Wed 1/1007:18ORD - SFO
Nonstop4h 46mUnited Airlines
Deal found 31/8£182
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 2 September 2025.
Wed 31/1216:55SFO - ORD
Nonstop4h 19mUnited Airlines
Deal found 31/8£74
Wed 15/1010:26SFO - ORD
1 stop11h 33mHawaiian Airlines
Deal found 31/8£78
Thu 27/1105:00SFO - ORD
1 stop7h 05mSouthwest
Deal found 1/9£81
Wed 1/1016:55SFO - ORD
Nonstop4h 17mUnited Airlines
Deal found 1/9£89
Tue 14/1008:45SFO - ORD
1 stop8h 14mHawaiian Airlines
Deal found 2/9£90
Sat 11/1016:55SFO - ORD
Nonstop4h 17mUnited Airlines
Deal found 1/9£93
Thu 23/1006:30SFO - ORD
Nonstop4h 35mUnited Airlines
Deal found 1/9£95
Tue 7/1000:35SFO - ORD
1 stop5h 55mDelta
Deal found 2/9£96
Wed 3/1214:50SFO - ORD
1 stop7h 00mAlaska Airlines
Deal found 1/9£98
Sat 10/114:40SFO - ORD
1 stop7h 19mAlaska Airlines
Deal found 31/8£100
Sat 13/1205:15SFO - ORD
1 stop6h 15mSouthwest
Deal found 1/9£100
Mon 13/1006:45SFO - ORD
1 stop15h 14mAlaska Airlines
Deal found 1/9£101
Cheapflights Fare Finder
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 858,174 searches. Data last updated 2 September 2025.
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
San Francisco
Fly to
O'Hare Intl
Route
Depart
Return
Price
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Sat 18/10
08:41-23:59
1 stop13h 18m
Chicago O'Hare Intl
Tue 21/10
19:59-11:06
1 stop17h 07m
£166
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 15/10
10:26-23:59
1 stop11h 33m
Chicago O'Hare Intl
Wed 22/10
08:20-17:45
1 stop11h 25m
£166
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 5/11
07:00-23:59
1 stop14h 59m
Chicago O'Hare Intl
Wed 12/11
09:20-22:01
1 stop14h 41m
£166
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 8/10
10:26-23:59
1 stop11h 33m
Chicago O'Hare Intl
Wed 15/10
08:20-14:01
1 stop7h 41m
£166
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 1/10
23:00-05:13
Nonstop4h 13m
Chicago O'Hare Intl
Wed 8/10
06:15-08:53
Nonstop4h 38m
£177
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Tue 23/9
06:30-13:01
Nonstop4h 31m
Chicago O'Hare Intl
Tue 30/9
15:47-18:28
Nonstop4h 41m
£177
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Tue 11/11
23:44-06:02
Nonstop4h 18m
Chicago O'Hare Intl
Tue 18/11
09:10-11:56
Nonstop4h 46m
£177
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 25/2
18:40-00:59
Nonstop4h 19m
Chicago O'Hare Intl
Wed 4/3
06:30-09:20
Nonstop4h 50m
£177
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Mon 20/10
21:17-14:50
1 stop15h 33m
Chicago O'Hare Intl
Tue 21/10
19:59-11:06
1 stop17h 07m
£180
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 8/10
10:26-23:59
1 stop11h 33m
Chicago O'Hare Intl
Tue 14/10
19:59-14:01
1 stop20h 02m
£180
Flights are sorted by cheapest return flights first.
Deals found on 31/8
Showing 1-10 of 22 results
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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.
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
How far ahead should I book a flight from San Francisco to Chicago O'Hare Intl Airport?
Use this chart to determine the optimal time to book a return flight from San Francisco to O'Hare Intl. Price data was last updated on 29 August 2025.
The best time to book flights from San Francisco to Chicago O'Hare Intl Airport is 67 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, January is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £595). Flying from San Francisco to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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 2 September 2025.
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 afternoon, which can drop the price by up to 46% versus a flight in the morning.
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 2 September 2025.
The most flights from SFO to ORD are scheduled on a Monday (86 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (27 on average).
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 59 outbound flights to Chicago O'Hare Intl per day from 0 airlines. San Francisco is conveniently located just 11.8 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 19m. Alaska Airlines provides one of the quickest options available for as low as £177. 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 Asiana Airlines (82%), Austrian Airlines (79%) and Brussels Airlines (77%).
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 £113. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for £159 on average our data indicates £318 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, January is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £595). Flying from San Francisco to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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 2 September 2025.
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 2 September 2025.
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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