Lufthansa's Economy Flex offers preferred seating and same-day flight changes.
Lufthansa's Free Neighbor Seat allows extra space for a fee on long-haul flights.
Round-trip from | $77 (United Airlines) |
---|---|
One-way from | $46 (American Airlines) |
Popular in | July |
Cheapest in | August |
Average price | $323 |
Good round-trip deal | $442 or less |
Good one-way deal | $252 or less |
Fly from
Fly to
Route
Depart
Return
Price
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Mon 10/13
12:25 pm-1:50 pm
Nonstop1h 25m
Chicago O'Hare Intl
Thu 10/16
2:20 pm-3:44 pm
Nonstop1h 24m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Sat 9/13
9:56 am-11:20 am
Nonstop1h 24m
Chicago O'Hare Intl
Tue 9/16
8:31 pm-9:53 pm
Nonstop1h 22m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 8/20
6:25 am-12:45 pm
1 stop6h 20m
Chicago O'Hare Intl
Wed 8/27
1:30 pm-9:25 pm
1 stop7h 55m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 8/14
1:00 pm-4:32 pm
1 stop3h 32m
Chicago O'Hare Intl
Mon 8/18
10:34 pm-11:51 pm
Nonstop1h 17m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 8/21
1:00 pm-4:32 pm
1 stop3h 32m
Chicago O'Hare Intl
Thu 8/28
2:20 pm-3:44 pm
Nonstop1h 24m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 8/27
6:40 am-12:45 pm
1 stop6h 05m
Chicago O'Hare Intl
Wed 9/3
5:45 am-12:31 pm
1 stop6h 46m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Sat 8/9
2:52 pm-11:29 pm
1 stop8h 37m
Chicago O'Hare Intl
Wed 8/13
11:28 am-11:47 pm
1 stop12h 19m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 8/27
7:23 am-8:48 am
Nonstop1h 25m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Sat 8/23
6:35 am-12:45 pm
1 stop6h 10m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Mon 10/13
12:25 pm-1:50 pm
Nonstop1h 25m
To ensure you get the cheapest price possible for a flight from St. Louis to Chicago O'Hare Intl Airport, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, August is the cheapest month in which you can book a flight from St. Louis to Chicago O'Hare Intl Airport (average of $245). Flying from St. Louis to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from St. Louis to Chicago O'Hare Intl Airport in the morning. Doing so could potentially save you 49% on the flight price compared to flying at noon, which is usually more expensive.
Travelers seeking maximum savings on their St. Louis to Chicago O'Hare Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from STL to ORD are scheduled on a Thursday (73 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 on average).
Comfort
Entertainment
Overall
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Comfort
Entertainment
Overall
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Comfort
Entertainment
Overall
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Comfort
Entertainment
Overall
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Comfort
Entertainment
Overall
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$115 | Average$269 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$129 | Average$197 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$135 | Average$316 | FlexibilityNo cancel fee | On-time69% |