Find a great deal and save up to 40% 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
$78 - $225
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 8/14
Nonstop4h 11m
Chicago Midway
Wed 8/21
Nonstop4h 38m
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Fri 9/6
Nonstop4h 11m
Chicago Midway
Sat 9/14
Nonstop4h 38m
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Mon 8/19
Nonstop4h 11m
Chicago Midway
Sat 8/24
Nonstop4h 38m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Sun 9/1
Nonstop4h 20m
Chicago O'Hare Intl
Mon 9/9
1 stop7h 43m
San FranciscoChampaign University-Willard
SFO - CMI
SFOCMI
San Francisco
Wed 8/7
1 stop6h 37m
Champaign University-Willard
Fri 8/9
1 stop9h 47m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Wed 7/17
1 stop13h 35m
Chicago O'Hare Intl
Tue 7/30
Nonstop4h 37m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Tue 7/23
Nonstop4h 14m
Chicago O'Hare Intl
Sat 7/27
Nonstop4h 39m
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Mon 7/8
1 stop16h 00m
Chicago O'Hare Intl
Thu 7/11
1 stop14h 13m
No data available for this route at this time. Please check back soon.
Entertainment
Boarding
Crew
Comfort
Overall
Food
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Entertainment
Boarding
Crew
Comfort
Overall
Food
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Entertainment
Boarding
Crew
Comfort
Overall
Food
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Entertainment
Boarding
Crew
Comfort
Overall
Food
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Entertainment
Boarding
Crew
Comfort
Overall
Food
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Entertainment
Boarding
Crew
Comfort
Overall
Food
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Frontier | Cheapest$67 | Average$235 | FlexibilityNo cancel fee | On-time62% |
Alaska Airlines | Cheapest$115 | Average$299 | FlexibilityNo cancel fee | On-time75% |
Delta | Cheapest$122 | Average$311 | FlexibilityNo cancel fee | On-timeN/A |
Spirit Airlines | Cheapest$130 | Average$257 | FlexibilityNo cancel fee | On-time65% |
American Airlines | Cheapest$159 | Average$482 | FlexibilityNo cancel fee | On-time71% |
United Airlines | Cheapest$208 | Average$496 | FlexibilityNo cancel fee | On-time69% |
20%of flight departures | Early morningMidnight to 6 am |
---|---|
41%of flight departures | Morning6 am to noon |
30%of flight departures | AfternoonNoon to 6 pm |
9%of flight departures | Evening6 pm to midnight |