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
$81 - $166
Route
Depart
Return
Price
Lambert-St LouisQuincy Regional
STL - UIN
STLUIN
Lambert-St Louis
jue. 8/22
Nonstop0h 50m
Quincy Regional
lun. 8/26
Nonstop0h 50m
Lambert-St LouisQuincy Regional
STL - UIN
STLUIN
Lambert-St Louis
lun. 7/8
Nonstop0h 50m
Quincy Regional
lun. 7/15
Nonstop0h 50m
Lambert-St LouisQuincy Regional
STL - UIN
STLUIN
Lambert-St Louis
mar. 7/30
Nonstop0h 50m
Quincy Regional
jue. 8/1
Nonstop0h 50m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
dom. 6/30
Nonstop1h 22m
Chicago O'Hare Intl
mié. 7/3
Nonstop1h 17m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
mar. 7/2
Nonstop1h 22m
Chicago O'Hare Intl
mar. 7/2
Nonstop1h 13m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
vie. 6/21
1 stop3h 35m
Chicago O'Hare Intl
lun. 6/24
1 stop13h 09m
Lambert-St LouisChicago O'Hare Intl
STL - ORD
STLORD
Lambert-St Louis
mar. 7/9
Nonstop1h 34m
Chicago O'Hare Intl
mar. 7/16
Nonstop1h 20m
Lambert-St LouisChicago Midway
STL - MDW
STLMDW
Lambert-St Louis
mié. 7/10
1 stop5h 48m
Chicago Midway
mié. 7/17
1 stop3h 56m
Lambert-St LouisChicago Midway
STL - MDW
STLMDW
Lambert-St Louis
vie. 6/21
1 stop10h 00m
Chicago Midway
mar. 6/25
1 stop8h 47m
No data available for this route at this time. Please check back soon.
Entertainment
Food
Boarding
Crew
Comfort
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Food
Boarding
Crew
Comfort
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Food
Boarding
Crew
Comfort
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Food
Boarding
Crew
Comfort
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Food
Boarding
Crew
Comfort
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
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 |