Find a great deal and save up to 57% by booking at least 41 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 St. Louis to Illinois within the next two weeks, with the cheapest ticket starting at $180.
April can be a great time to fly to Illinois from St. Louis with a flight ticket averaging about $244. Cheapflights users have found deals in the month of April for as cheap as $106. The most expensive prices can be found in the month of July.
When flying from St. Louis 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
$88 - $180
Route
Depart
Return
Price
Lambert-St LouisQuincy Regional
STL - UIN
STLUIN
Lambert-St Louis
Tue 7/30
Nonstop0h 50m
Quincy Regional
Thu 8/1
Nonstop0h 50m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
Tue 7/2
1 stop4h 10m
Chicago O'Hare Intl
Tue 7/2
1 stop14h 05m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
Tue 7/2
Nonstop1h 22m
Chicago O'Hare Intl
Fri 7/5
Nonstop1h 13m
Lambert-St LouisChicago Midway
STL - MDW
STLMDW
Lambert-St Louis
Fri 6/21
1 stop12h 11m
Chicago Midway
Sun 6/23
1 stop9h 32m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
Tue 6/25
1 stop8h 53m
Chicago O'Hare Intl
Thu 6/27
1 stop23h 35m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
Tue 7/16
Nonstop1h 25m
Chicago O'Hare Intl
Fri 8/16
Nonstop1h 23m
Lambert-St LouisChicago Midway
STL - MDW
STLMDW
Lambert-St Louis
Sat 9/21
1 stop5h 43m
Chicago Midway
Sat 9/28
1 stop3h 36m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
Sat 9/7
2 stops15h 37m
Chicago O'Hare Intl
Tue 9/10
1 stop11h 15m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
Tue 7/9
Nonstop1h 20m
Chicago O'Hare Intl
Tue 7/16
1 stop15h 25m
No data available for this route at this time. Please check back soon.
Overall
Food
Crew
Boarding
Comfort
Entertainment
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Overall
Food
Crew
Boarding
Comfort
Entertainment
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Overall
Food
Crew
Boarding
Comfort
Entertainment
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Overall
Food
Crew
Boarding
Comfort
Entertainment
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Overall
Food
Crew
Boarding
Comfort
Entertainment
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
American Airlines | Cheapest$118 | Average$266 | FlexibilityNo cancel fee | On-time71% |
United Airlines | Cheapest$121 | Average$292 | FlexibilityNo cancel fee | On-time69% |
Southern / Mokulele | Cheapest$131 | Average$172 | FlexibilityNo cancel fee | On-timeN/A |
Delta | Cheapest$238 | Average$300 | FlexibilityNo cancel fee | On-timeN/A |
7%of flight departures | Early morningMidnight to 6 am |
---|---|
41%of flight departures | Morning6 am to noon |
51%of flight departures | AfternoonNoon to 6 pm |
1%of flight departures | Evening6 pm to midnight |