Cheap flights from San Francisco to Chicago O'Hare Intl Airport from £75
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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
23 Jul — 30 Jul1
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 Monday or Wednesday and return on a Friday
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 July 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 July 2025.
Wed 20/805:15SFO - ORD
Nonstop4h 31mUnited Airlines
Sun 24/806:15ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 17/7£154
Wed 27/812:20SFO - ORD
1 stop8h 45mSouthwest
Sun 31/807:30ORD - SFO
1 stop6h 25mSouthwest
Deal found 16/7£155
Fri 26/920:19SFO - ORD
1 stop8h 44mHawaiian Airlines
Sat 27/910:00ORD - SFO
1 stop10h 09mHawaiian Airlines
Deal found 16/7£160
Wed 8/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Tue 14/1008:20ORD - SFO
1 stop7h 41mAlaska Airlines
Deal found 16/7£161
Sat 16/806:00SFO - ORD
1 stop7h 02mDelta
Fri 22/807:15ORD - SFO
1 stop7h 36mDelta
Deal found 18/7£192
Sun 10/823:59SFO - ORD
1 stop15h 28mSun Country Air
Thu 28/815:37ORD - SFO
1 stop9h 14mSun Country Air
Deal found 17/7£193
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 July 2025.
Wed 20/805:15SFO - ORD
Nonstop4h 31mUnited Airlines
Sun 24/806:15ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 17/7£154
Wed 27/812:20SFO - ORD
1 stop8h 45mSouthwest
Sun 31/807:30ORD - SFO
1 stop6h 25mSouthwest
Deal found 16/7£155
Fri 26/920:19SFO - ORD
1 stop8h 44mHawaiian Airlines
Sat 27/910:00ORD - SFO
1 stop10h 09mHawaiian Airlines
Deal found 16/7£160
Wed 8/1010:26SFO - ORD
1 stop11h 33mAlaska Airlines
Tue 14/1008:20ORD - SFO
1 stop7h 41mAlaska Airlines
Deal found 16/7£161
Sat 16/811:35SFO - ORD
1 stop8h 01mDelta
Tue 26/811:05ORD - SFO
1 stop9h 00mDelta
Deal found 17/7£192
Sun 10/823:59SFO - ORD
1 stop15h 28mSun Country Air
Thu 14/818:20ORD - SFO
1 stop6h 36mSun Country Air
Deal found 17/7£193
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 July 2025.
Wed 20/805:15SFO - ORD
Nonstop4h 31mUnited Airlines
Sun 24/806:15ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 17/7£154
Tue 12/811:55SFO - ORD
Nonstop4h 23mAlaska Airlines
Tue 19/819:18ORD - SFO
Nonstop4h 48mAlaska Airlines
Deal found 17/7£177
Sat 16/811:55SFO - ORD
Nonstop4h 23mHawaiian Airlines
Tue 19/819:18ORD - SFO
Nonstop4h 48mHawaiian Airlines
Deal found 18/7£210
Mon 11/823:08SFO - ORD
Nonstop4h 16mAmerican Airlines
Sun 17/806:45ORD - SFO
Nonstop4h 30mAmerican Airlines
Deal found 17/7£254
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 July 2025 and is based on user searches.
Wed 23/712:03SFO - ORD
1 stop9h 36mAlaska Airlines
Wed 30/707:00ORD - SFO
1 stop7h 24mAlaska Airlines
Deal found 16/7£280
Thu 24/712:10SFO - ORD
1 stop8h 10mSouthwest
Tue 29/714:50ORD - SFO
2 stops10h 20mSouthwest
Deal found 18/7£315
Sun 27/723:57SFO - ORD
1 stop15h 18mSun Country Air
Tue 29/712:08ORD - SFO
1 stop6h 57mSun Country Air
Deal found 16/7£332
Mon 28/700:50SFO - ORD
1 stop5h 35mDelta
Tue 12/805:45ORD - SFO
1 stop10h 39mDelta
Deal found 18/7£251
Mon 28/723:25SFO - ORD
Nonstop4h 14mUnited Airlines
Sun 3/821:40ORD - SFO
Nonstop4h 50mUnited Airlines
Deal found 16/7£266
Mon 28/700:55SFO - ORD
1 stop8h 04mAmerican Airlines
Fri 1/816:39ORD - SFO
1 stop9h 03mAmerican Airlines
Deal found 16/7£351
Sun 10/823:59SFO - ORD
1 stop15h 28mSun Country Air
Thu 28/815:37ORD - SFO
1 stop9h 14mSun Country Air
Deal found 17/7£193
Tue 12/815:05SFO - ORD
1 stop6h 34mHawaiian Airlines
Tue 19/807:00ORD - SFO
1 stop7h 24mHawaiian Airlines
Deal found 18/7£176
Wed 13/808:00SFO - ORD
1 stop13h 39mAlaska Airlines
Tue 19/819:18ORD - SFO
Nonstop4h 48mAlaska Airlines
Deal found 17/7£162
Sat 16/811:35SFO - ORD
1 stop8h 01mDelta
Sat 23/807:15ORD - SFO
1 stop7h 36mDelta
Deal found 17/7£192
Wed 20/805:15SFO - ORD
Nonstop4h 31mUnited Airlines
Sun 24/806:15ORD - SFO
Nonstop4h 41mUnited Airlines
Deal found 17/7£154
Wed 27/812:20SFO - ORD
1 stop8h 45mSouthwest
Sun 31/807:30ORD - SFO
1 stop6h 25mSouthwest
Deal found 16/7£155
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 July 2025.
Tue 18/1107:00SFO - ORD
1 stop9h 59mHawaiian Airlines
Deal found 18/7£75
Tue 9/1212:30SFO - ORD
1 stop8h 40mAlaska Airlines
Deal found 18/7£76
Sat 30/805:00SFO - ORD
1 stop10h 55mSouthwest
Deal found 16/7£78
Tue 26/800:35SFO - ORD
1 stop5h 49mDelta
Deal found 18/7£96
Sun 5/1023:59SFO - ORD
1 stop8h 40mSun Country Air
Deal found 16/7£97
Tue 25/1105:10SFO - ORD
Nonstop4h 20mUnited Airlines
Deal found 17/7£98
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 July 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 20/8
05:15-11:46
Nonstop4h 31m
Chicago O'Hare Intl
Sun 24/8
06:15-08:56
Nonstop4h 41m
£154
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 27/8
12:20-23:05
1 stop8h 45m
Chicago O'Hare Intl
Sun 31/8
07:30-11:55
1 stop6h 25m
£155
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Fri 26/9
20:19-07:03
1 stop8h 44m
Chicago O'Hare Intl
Sat 27/9
10:00-18:09
1 stop10h 09m
£160
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Wed 8/10
10:26-23:59
1 stop11h 33m
Chicago O'Hare Intl
Tue 14/10
08:20-14:01
1 stop7h 41m
£161
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Sat 16/8
11:35-21:36
1 stop8h 01m
Chicago O'Hare Intl
Sat 23/8
07:15-12:51
1 stop7h 36m
£192
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Sun 10/8
23:59-17:27
1 stop15h 28m
Chicago O'Hare Intl
Thu 28/8
15:37-22:51
1 stop9h 14m
£193
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Tue 18/11
07:00-18:59
1 stop9h 59m
£75
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Tue 9/12
12:30-23:10
1 stop8h 40m
£76
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Sat 30/8
05:00-17:55
1 stop10h 55m
£78
San FranciscoChicago
SFO - ORD
SFOORD
San Francisco
Tue 26/8
00:35-08:24
1 stop5h 49m
£96
Flights are sorted by cheapest return flights first.
Deals found on 18/7
Showing 1-10 of 12 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
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 11 July 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 July 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 47% 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 18 July 2025.
The most flights from SFO to ORD are scheduled on a Thursday (91 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (61 on average).
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated 18 July 2025.
Read reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta
from San Francisco to Chicago O'Hare Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Good flight except the uncontrollable cold air from the ceiling.
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 74 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.
What are the cheapest airlines flying from San Francisco to Chicago O'Hare Intl Airport round-trip?
United Airlines, at £154, was found to be the cheapest airline from San Francisco to Chicago O'Hare Intl Airport.Alternate airlines flying return to your destination include Southwest and Hawaiian Airlines. United Airlines is currently priced 43% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from San Francisco to Chicago O'Hare Intl Airport one-way?
To fly one-way, consider booking your trip with Hawaiian Airlines, which is currently one of the cheapest options available, starting at £75. Alaska Airlines flights start at £76 while deals on Southwest start at £78 one-way.
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 Fiji Airways (100%), Asiana Airlines (88%) and China Southern (82%).
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 £148. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for £185 on average our data indicates £174 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 July 2025.
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 18 July 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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