Cheap flights from San Francisco to Chicago O'Hare Intl Airport from £119
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
3 Nov — 10 Nov1
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 January or February, booked 67 days in advance, depart on a Tuesday or Monday and return on a Tuesday
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
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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 4 October 2026.
Mon 26/1023:59 -
1 stop7h 36m
Thu 29/1010:26 -
1 stop12h 14m
Deal found 2/10£214
Mon 16/1106:02 -
1 stop16h 19m
Mon 23/1106:40 -
1 stop20h 03m
Deal found 2/10£217
Mon 2/1107:05 -
2 stops13h 00m
Tue 3/1109:30 -
1 stop13h 02m
Deal found 29/9£233
Tue 27/1015:21 -
1 stop12h 19m
Sat 31/1007:00 -
2 stops12h 00m
Deal found 30/9£238
Sat 31/1008:20 -
1 stop8h 33m
Wed 4/1114:15 -
1 stop8h 01m
Deal found 29/9£239
Thu 10/1214:49 -
1 stop7h 10m
Mon 14/1206:00 -
2 stops13h 10m
Deal found 30/9£245
Wed 4/1109:54 -
1 stop9h 38m
Mon 16/1119:17 -
2 stops15h 41m
Deal found 29/9£248
Sat 7/1108:43 -
2 stops13h 16m
Thu 12/1107:20 -
1 stop7h 17m
Deal found 4/10£248
Thu 29/1008:20 -
1 stop8h 33m
Fri 30/1007:20 -
1 stop7h 21m
Deal found 29/9£249
Fri 13/1115:38 -
2 stops12h 02m
Mon 16/1114:15 -
1 stop8h 01m
Deal found 30/9£253
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 4 October 2026.
Tue 3/1117:10 -
Nonstop4h 17m
Wed 4/1114:30 -
Nonstop4h 55m
Deal found 2/10£276
Wed 28/1008:20 -
1 stop8h 33m
Sat 31/1015:49 -
1 stop20h 52m
Deal found 1/10£313
Wed 10/310:31 -
2 stops9h 22m
Wed 17/317:20 -
1 stop8h 39m
Deal found 1/10£377
Mon 21/1218:25 -
1 stop13h 58m
Sat 26/1220:30 -
1 stop15h 26m
Deal found 1/10£396
Sat 24/1018:38 -
Nonstop4h 17m
Sat 31/1013:30 -
Nonstop4h 53m
Deal found 3/10£313
Tue 1/1205:00 -
Nonstop4h 26m
Sat 5/1207:29 -
Nonstop4h 56m
Deal found 30/9£313
Wed 24/308:00 -
1 stop8h 55m
Wed 24/319:55 -
1 stop15h 47m
Deal found 3/10£365
Sat 24/1018:38 -
Nonstop4h 17m
Wed 4/1113:30 -
Nonstop4h 50m
Deal found 3/10£313
Fri 25/1216:12 -
1 stop19h 07m
Fri 1/106:00 -
2 stops12h 46m
Deal found 3/10£369
Wed 14/1016:43 -
1 stop18h 42m
Sat 17/1014:21 -
2 stops10h 06m
Deal found 2/10£377
Fri 20/1108:25 -
1 stop9h 38m
Wed 25/1109:00 -
2 stops10h 54m
Deal found 1/10£381
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 4 October 2026.
Tue 27/1006:35 -
Nonstop4h 26m
Tue 3/1106:00 -
Nonstop4h 47m
Deal found 30/9£254
Fri 23/1005:00 -
Nonstop4h 25m
Sat 24/1021:40 -
Nonstop4h 50m
Deal found 30/9£264
Sat 19/1218:53 -
Nonstop4h 23m
Mon 18/105:58 -
Nonstop4h 57m
Deal found 30/9£265
Fri 23/1005:00 -
Nonstop4h 25m
Fri 23/1016:05 -
Nonstop4h 49m
Deal found 30/9£274
Wed 18/1100:55 -
Nonstop4h 18m
Sun 22/1120:29 -
Nonstop4h 59m
Deal found 2/10£275
Mon 26/1016:10 -
Nonstop4h 19m
Tue 27/1016:35 -
Nonstop4h 53m
Deal found 2/10£276
Thu 26/1106:35 -
Nonstop4h 23m
Fri 27/1106:00 -
Nonstop4h 44m
Deal found 1/10£281
Wed 28/1022:45 -
Nonstop4h 17m
Fri 30/1021:00 -
Nonstop4h 51m
Deal found 2/10£282
Thu 14/105:00 -
Nonstop4h 28m
Mon 18/105:58 -
Nonstop4h 57m
Deal found 1/10£283
Fri 30/1018:42 -
Nonstop4h 17m
Fri 6/1106:00 -
Nonstop4h 44m
Deal found 2/10£289
Thu 17/1205:00 -
Nonstop4h 28m
Mon 21/1208:40 -
Nonstop4h 54m
Deal found 30/9£291
Thu 19/1105:00 -
Nonstop4h 24m
Fri 27/1106:00 -
Nonstop4h 44m
Deal found 30/9£291
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 4 October 2026 and is based on user searches.
Mon 26/1023:59 -
1 stop7h 36m
Thu 29/1010:26 -
1 stop12h 14m
Deal found 2/10£214
Tue 27/1015:21 -
1 stop12h 19m
Sat 31/1007:00 -
2 stops12h 00m
Deal found 30/9£238
Tue 27/1006:35 -
Nonstop4h 26m
Tue 3/1106:00 -
Nonstop4h 47m
Deal found 30/9£254
Thu 29/1008:20 -
1 stop8h 33m
Fri 30/1007:20 -
1 stop7h 21m
Deal found 29/9£249
Sat 31/1008:20 -
1 stop8h 33m
Wed 4/1114:15 -
1 stop8h 01m
Deal found 29/9£239
Mon 2/1107:05 -
2 stops13h 00m
Tue 3/1109:30 -
1 stop13h 02m
Deal found 29/9£233
Wed 4/1109:54 -
1 stop9h 38m
Mon 16/1119:17 -
2 stops15h 41m
Deal found 29/9£248
Sat 7/1108:43 -
2 stops13h 16m
Thu 12/1107:20 -
1 stop7h 17m
Deal found 4/10£248
Fri 13/1115:38 -
2 stops12h 02m
Mon 16/1114:15 -
1 stop8h 01m
Deal found 30/9£253
Mon 16/1106:02 -
1 stop16h 19m
Mon 23/1106:40 -
1 stop20h 03m
Deal found 2/10£217
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 4 October 2026.
Thu 29/1007:10 -
1 stop14h 37m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9£119
Tue 5/112:53 -
1 stop9h 06m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 1/10£120
Sun 25/1022:14 -
1 stop9h 07m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9£121
Wed 28/1016:51 -
2 stops21h 59m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9£123
Thu 7/110:04 -
1 stop10h 04m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/9£124
Sat 12/1208:40 -
2 stops13h 19m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/9£126
Tue 27/1000:55 -
Nonstop4h 18m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/9£128
Thu 29/1008:20 -
1 stop8h 33m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/10£131
Fri 13/1115:38 -
2 stops12h 02m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/9£134
Tue 22/1213:00 -
1 stop8h 59m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/9£135
Fri 23/1022:42 -
Nonstop4h 19m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9£137
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 4 October 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 4 October 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
Tue 17/11
12:27-18:49
Nonstop4h 22m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£138
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Wed 4/11
06:35-12:59
Nonstop4h 24m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£138
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Fri 30/10
14:40-23:47
1 stop7h 07m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£145
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Mon 2/11
14:08-23:57
1 stop7h 49m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£146
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Wed 4/11
07:05-22:05
2 stops13h 00m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£153
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Sat 2/1
05:00-11:28
Nonstop4h 28m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£165
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Thu 31/12
06:34-13:03
Nonstop4h 29m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£173
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Tue 5/1
23:10-05:34
Nonstop4h 24m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£173
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Tue 29/12
17:10-23:33
Nonstop4h 23m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£173
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Wed 11/11
18:59-05:40
2 stops8h 41m
Chicago O'Hare Intl
Wed 31/12
00:00-22:00
Nonstop0h 00m
£179
Flights are sorted by cheapest return flights first.
Deals found on 3/10
Showing 1-10 of 22 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £285). Flying from San Francisco to Chicago O'Hare Intl Airport in June is currently the most expensive (average of £383). 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 4 October 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 morning, which can drop the price by up to 62% 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 £254 and £459 in October.The cheapest return price found within the last 5 days was £214 on Frontier (26 Oct–29 Oct).
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 4 October 2026.
The most flights from SFO to ORD are scheduled on a Friday (94 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (38 on average).
How often are flights from San Francisco to Chicago delayed?
About 9% of weekly flights between San Francisco and Chicago have experienced delays in the past year, with the average delay time being 185 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 Monday 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 25m. United Airlines provides one of the quickest options available for as low as £254. 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 (90%), Aer Lingus (78%) and Austrian Airlines (73%).
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 £89. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for £240 on average, our data indicates £317 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 £285). Flying from San Francisco to Chicago O'Hare Intl Airport in June is currently the most expensive (average of £383). 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 4 October 2026.
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 4 October 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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