Find a great deal and save up to 39% by booking at least 47 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Francisco to Illinois within the next two weeks, with the cheapest ticket starting at $308.
October can be a great time to fly to Illinois from San Francisco with a flight ticket averaging about $320. Cheapflights users have found deals in the month of October for as cheap as $88. The most expensive prices can be found in the month of March.
When flying from San Francisco to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$146 - $280
Route
Depart
Return
Price
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Wed 8/14
Nonstop4h 21m
Chicago O'Hare Intl
Thu 8/22
Nonstop4h 44m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Tue 8/13
Nonstop4h 21m
Chicago O'Hare Intl
Thu 8/15
Nonstop4h 37m
San FranciscoLambert-St Louis
SFO - STL
SFOSTL
San Francisco
Mon 9/9
1 stop6h 53m
Lambert-St Louis
Wed 9/11
1 stop7h 30m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Tue 8/13
1 stop7h 20m
Chicago O'Hare Intl
Wed 8/14
Nonstop4h 37m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Mon 8/19
Nonstop4h 21m
Chicago O'Hare Intl
Sat 8/24
1 stop7h 29m
San FranciscoMoline Quad-City
SFO - MLI
SFOMLI
San Francisco
Fri 9/6
1 stop7h 44m
Moline Quad-City
Tue 9/10
1 stop8h 23m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Fri 8/2
Nonstop4h 18m
Chicago O'Hare Intl
Sat 8/10
1 stop6h 08m
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Tue 8/20
1 stop8h 43m
Chicago Midway
Tue 8/27
1 stop7h 48m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Wed 7/10
1 stop17h 11m
Chicago O'Hare Intl
Sun 7/14
1 stop14h 06m
No data available for this route at this time. Please check back soon.
Comfort
Boarding
Food
Entertainment
Overall
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Comfort
Boarding
Food
Entertainment
Overall
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Comfort
Boarding
Food
Entertainment
Overall
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Comfort
Boarding
Food
Entertainment
Overall
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Comfort
Boarding
Food
Entertainment
Overall
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Comfort
Boarding
Food
Entertainment
Overall
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
23%of flight departures | Early morningMidnight to 6 am |
---|---|
37%of flight departures | Morning6 am to noon |
17%of flight departures | AfternoonNoon to 6 pm |
23%of flight departures | Evening6 pm to midnight |
Deals for San Francisco to Illinois 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.
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Francisco to Illinois.
Certainly. Search results for flights to Illinois from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Illinois from San Francisco today and book when prices fit your budget.