Cheap flights from San Francisco to Chicago O'Hare Intl Airport from £79
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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
18 Oct — 25 Oct1
Return
1 adult
Economy
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 Friday 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 18 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 18 September 2025.
Wed 10/1210:06SFO - ORD
2 stops11h 44mAlaska Airlines
Mon 15/1219:59ORD - SFO
1 stop14h 07mAlaska Airlines
Deal found 16/9£154
Fri 12/1207:00SFO - ORD
1 stop9h 54mAlaska Airlines
Mon 15/1219:59ORD - SFO
1 stop14h 07mAlaska Airlines
Deal found 17/9£155
Wed 10/1208:09SFO - ORD
1 stop8h 45mHawaiian Airlines
Tue 16/1215:05ORD - SFO
1 stop8h 41mHawaiian Airlines
Deal found 16/9£160
Sat 1/1107:00SFO - ORD
1 stop14h 59mAlaska Airlines
Tue 4/1109:20ORD - SFO
2 stops10h 07mAlaska Airlines
Deal found 17/9£174
Tue 21/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Wed 12/1109:20ORD - SFO
1 stop14h 41mAlaska Airlines
Deal found 16/9£174
Thu 11/1208:09SFO - ORD
1 stop8h 45mHawaiian Airlines
Mon 15/1215:05ORD - SFO
1 stop8h 41mHawaiian Airlines
Deal found 16/9£178
Tue 14/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Sat 18/1017:59ORD - SFO
1 stop17h 17mAlaska Airlines
Deal found 17/9£183
Fri 10/1012:00SFO - ORD
1 stop9h 59mAlaska Airlines
Wed 15/1019:59ORD - SFO
1 stop14h 06mAlaska Airlines
Deal found 17/9£184
Fri 31/1007:00SFO - ORD
1 stop14h 59mAlaska Airlines
Tue 4/1108:00ORD - SFO
2 stops11h 27mAlaska Airlines
Deal found 17/9£188
Tue 21/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Thu 6/1114:54ORD - SFO
1 stop9h 07mAlaska Airlines
Deal found 17/9£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 18 September 2025.
Wed 10/1208:09SFO - ORD
1 stop8h 45mHawaiian Airlines
Tue 16/1215:05ORD - SFO
1 stop8h 41mHawaiian Airlines
Deal found 16/9£160
Tue 4/1110:35SFO - ORD
1 stop11h 24mAlaska Airlines
Fri 7/1114:54ORD - SFO
1 stop9h 24mAlaska Airlines
Deal found 17/9£174
Wed 3/1206:00SFO - ORD
1 stop7h 23mDelta
Sun 7/1207:47ORD - SFO
1 stop10h 10mDelta
Deal found 16/9£204
Tue 14/1012:30SFO - ORD
1 stop8h 35mSouthwest
Wed 29/1007:00ORD - SFO
2 stops9h 10mSouthwest
Deal found 17/9£221
Wed 5/1107:00SFO - ORD
1 stop14h 59mAlaska Airlines
Sat 8/1120:59ORD - SFO
1 stop13h 51mAlaska Airlines
Deal found 17/9£204
Wed 17/1208:09SFO - ORD
1 stop8h 45mHawaiian Airlines
Fri 16/114:59ORD - SFO
1 stop7h 05mHawaiian Airlines
Deal found 17/9£205
Wed 15/1006:00SFO - ORD
1 stop9h 10mDelta
Sat 25/1017:15ORD - SFO
1 stop7h 01mDelta
Deal found 17/9£225
Mon 5/119:48SFO - ORD
1 stop16h 49mAlaska Airlines
Sat 31/114:59ORD - SFO
1 stop10h 34mAlaska Airlines
Deal found 17/9£205
Sat 1/1105:00SFO - ORD
1 stop6h 05mSouthwest
Tue 4/1114:15ORD - SFO
2 stops10h 15mSouthwest
Deal found 17/9£229
Tue 14/1013:45SFO - ORD
1 stop8h 05mDelta
Thu 23/1007:37ORD - SFO
1 stop10h 28mDelta
Deal found 17/9£225
Wed 29/1000:35SFO - ORD
1 stop9h 00mDelta
Mon 3/1107:50ORD - SFO
1 stop6h 30mDelta
Deal found 16/9£232
Fri 10/1000:35SFO - ORD
1 stop8h 53mDelta
Thu 16/1018:05ORD - SFO
1 stop7h 28mDelta
Deal found 16/9£232
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 18 September 2025.
Tue 21/1006:30SFO - ORD
Nonstop4h 35mUnited Airlines
Wed 22/1016:25ORD - SFO
Nonstop4h 38mUnited Airlines
Deal found 16/9£203
Sat 11/1015:00SFO - ORD
Nonstop4h 24mUnited Airlines
Tue 14/1015:47ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 17/9£210
Sat 11/1023:00SFO - ORD
Nonstop4h 13mUnited Airlines
Sat 18/1006:15ORD - SFO
Nonstop4h 38mUnited Airlines
Deal found 16/9£218
Wed 22/1023:33SFO - ORD
Nonstop4h 22mUnited Airlines
Sun 9/1107:10ORD - SFO
Nonstop4h 45mUnited Airlines
Deal found 17/9£220
Thu 6/1105:10SFO - ORD
Nonstop4h 20mUnited Airlines
Sun 9/1106:15ORD - SFO
Nonstop4h 49mUnited Airlines
Deal found 18/9£227
Tue 7/1016:55SFO - ORD
Nonstop4h 17mUnited Airlines
Thu 9/1007:18ORD - SFO
Nonstop4h 46mUnited Airlines
Deal found 16/9£230
Thu 30/1005:10SFO - ORD
Nonstop4h 20mUnited Airlines
Sun 2/1105:15ORD - SFO
Nonstop4h 49mUnited Airlines
Deal found 16/9£231
Fri 10/1018:35SFO - ORD
Nonstop4h 19mUnited Airlines
Tue 14/1015:47ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 17/9£234
Fri 7/1118:42SFO - ORD
Nonstop4h 17mUnited Airlines
Sun 9/1106:15ORD - SFO
Nonstop4h 49mUnited Airlines
Deal found 17/9£237
Sat 1/1114:45SFO - ORD
Nonstop4h 18mUnited Airlines
Mon 3/1107:10ORD - SFO
Nonstop4h 45mUnited Airlines
Deal found 15/9£240
Wed 8/1016:55SFO - ORD
Nonstop4h 17mUnited Airlines
Sun 12/1007:18ORD - SFO
Nonstop4h 46mUnited Airlines
Deal found 16/9£243
Thu 18/1205:00SFO - ORD
Nonstop4h 23mUnited Airlines
Sat 17/114:40ORD - SFO
Nonstop4h 56mUnited Airlines
Deal found 17/9£245
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 18 September 2025 and is based on user searches.
Fri 10/1012:00SFO - ORD
1 stop9h 59mAlaska Airlines
Wed 15/1019:59ORD - SFO
1 stop14h 06mAlaska Airlines
Deal found 17/9£184
Mon 13/1021:17SFO - ORD
1 stop15h 33mAlaska Airlines
Wed 15/1019:59ORD - SFO
1 stop14h 06mAlaska Airlines
Deal found 16/9£196
Tue 14/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Sat 18/1017:59ORD - SFO
1 stop17h 17mAlaska Airlines
Deal found 17/9£183
Tue 14/1010:40SFO - ORD
2 stops11h 10mDelta
Sat 18/1007:37ORD - SFO
1 stop10h 28mDelta
Deal found 16/9£195
Tue 21/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Wed 12/1109:20ORD - SFO
1 stop14h 41mAlaska Airlines
Deal found 16/9£174
Tue 21/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Thu 6/1114:54ORD - SFO
1 stop9h 07mAlaska Airlines
Deal found 17/9£188
Tue 21/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Mon 10/1120:59ORD - SFO
1 stop16h 02mAlaska Airlines
Deal found 16/9£191
Sat 25/1010:35SFO - ORD
1 stop11h 19mDelta
Fri 7/1107:37ORD - SFO
1 stop17h 56mDelta
Deal found 16/9£191
Tue 28/1010:35SFO - ORD
1 stop6h 24mHawaiian Airlines
Wed 29/1014:54ORD - SFO
1 stop9h 07mHawaiian Airlines
Deal found 17/9£189
Tue 28/1009:51SFO - ORD
2 stops12h 08mAlaska Airlines
Wed 29/1009:20ORD - SFO
1 stop14h 41mAlaska Airlines
Deal found 17/9£193
Fri 31/1007:00SFO - ORD
1 stop14h 59mAlaska Airlines
Tue 4/1108:00ORD - SFO
2 stops11h 27mAlaska Airlines
Deal found 17/9£188
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 18 September 2025.
Thu 2/1023:57SFO - ORD
1 stop13h 57mFrontier
Deal found 17/9£79
Tue 16/1208:09SFO - ORD
1 stop8h 45mHawaiian Airlines
Deal found 16/9£80
Mon 15/1218:13SFO - ORD
1 stop22h 41mAlaska Airlines
Deal found 16/9£84
Wed 12/1110:35SFO - ORD
1 stop7h 20mAlaska Airlines
Deal found 16/9£87
Sun 9/1118:33SFO - ORD
2 stops13h 29mFrontier
Deal found 16/9£89
Mon 13/1006:45SFO - ORD
1 stop30h 05mAlaska Airlines
Deal found 16/9£92
Wed 10/1210:06SFO - ORD
2 stops11h 44mAlaska Airlines
Deal found 18/9£94
Tue 4/1110:35SFO - ORD
1 stop7h 20mHawaiian Airlines
Deal found 17/9£95
Sun 23/1123:59SFO - ORD
1 stop8h 40mSun Country Air
Deal found 16/9£95
Sat 25/1006:00SFO - ORD
1 stop9h 18mDelta
Deal found 16/9£96
Tue 27/114:30SFO - ORD
1 stop6h 40mAlaska Airlines
Deal found 16/9£97
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 18 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
Wed 10/12
08:09-18:54
1 stop8h 45m
Chicago O'Hare Intl
Tue 16/12
15:05-21:46
1 stop8h 41m
£160
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Tue 4/11
10:35-23:59
1 stop11h 24m
Chicago O'Hare Intl
Fri 7/11
14:54-22:18
1 stop9h 24m
£174
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 5/11
07:00-23:59
1 stop14h 59m
Chicago O'Hare Intl
Sat 8/11
20:59-08:50
1 stop13h 51m
£204
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 3/12
06:00-15:23
1 stop7h 23m
Chicago O'Hare Intl
Sun 7/12
07:47-15:57
1 stop10h 10m
£204
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 17/12
08:09-18:54
1 stop8h 45m
Chicago O'Hare Intl
Fri 16/1
14:59-20:04
1 stop7h 05m
£205
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Mon 5/1
19:48-14:37
1 stop16h 49m
Chicago O'Hare Intl
Sat 31/1
14:59-23:33
1 stop10h 34m
£205
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Tue 14/10
12:30-23:05
1 stop8h 35m
Chicago O'Hare Intl
Wed 29/10
07:00-14:10
2 stops9h 10m
£221
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 15/10
06:00-17:10
1 stop9h 10m
Chicago O'Hare Intl
Sat 25/10
17:15-22:16
1 stop7h 01m
£225
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Tue 14/10
13:45-23:50
1 stop8h 05m
Chicago O'Hare Intl
Thu 23/10
07:37-16:05
1 stop10h 28m
£225
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Sat 1/11
05:00-13:05
1 stop6h 05m
Chicago O'Hare Intl
Tue 4/11
14:15-22:30
2 stops10h 15m
£229
Flights are sorted by cheapest return flights first.
Deals found on 18/9
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 12 September 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 18 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.
How much does it cost for a return flight from San Francisco to Chicago O'Hare Intl Airport?
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 18 September 2025.
The most flights from SFO to ORD are scheduled on a Monday (94 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (60 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 79 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 8h 45m. Hawaiian Airlines provides one of the quickest options available for as low as £160. 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 (100%), Fiji Airways (83%) and Asiana Airlines (83%).
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 £260. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for £148 on average, our data indicates £487 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 18 September 2025.
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 18 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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