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 $323.
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 June.
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
$98 - $262
Route
Depart
Return
Price
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Sat 9/21
Nonstop4h 11m
Chicago Midway
Wed 9/25
Nonstop4h 38m
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Wed 9/4
Nonstop4h 11m
Chicago Midway
Wed 9/11
Nonstop4h 38m
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Wed 9/4
Nonstop4h 11m
Chicago Midway
Sat 9/7
Nonstop4h 38m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Sat 9/7
Nonstop4h 20m
Chicago O'Hare Intl
Wed 9/11
Nonstop4h 44m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Thu 5/30
1 stop15h 43m
Chicago O'Hare Intl
Fri 5/31
1 stop6h 36m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Tue 6/11
Nonstop4h 20m
Chicago O'Hare Intl
Tue 6/18
Nonstop4h 40m
San FranciscoChampaign University-Willard
SFO - CMI
SFOCMI
San Francisco
Mon 8/19
1 stop9h 18m
Champaign University-Willard
Wed 8/21
1 stop6h 55m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Sun 7/7
1 stop17h 11m
Chicago O'Hare Intl
Thu 7/11
1 stop14h 13m
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Fri 8/9
1 stop8h 59m
Chicago Midway
Tue 8/13
1 stop8h 52m
No data available for this route at this time. Please check back soon.
Food
Boarding
Entertainment
Overall
Crew
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Food
Boarding
Entertainment
Overall
Crew
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Food
Boarding
Entertainment
Overall
Crew
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Food
Boarding
Entertainment
Overall
Crew
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Food
Boarding
Entertainment
Overall
Crew
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Food
Boarding
Entertainment
Overall
Crew
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
30%of flight departures | Early morningMidnight to 6 am |
---|---|
31%of flight departures | Morning6 am to noon |
18%of flight departures | AfternoonNoon to 6 pm |
21%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.