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 | $101 (United Airlines) |
---|---|
One-way from | $59 (American Airlines) |
Popular in | July |
Cheapest in | September |
Average price | $211 |
Good round-trip deal | $440 or less |
Good one-way deal | $202 or less |
Fly from
Fly to
Route
Depart
Return
Price
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 10/8
12:25 pm-1:50 pm
Nonstop1h 25m
Chicago O'Hare Intl
Tue 10/14
1:03 pm-2:27 pm
Nonstop1h 24m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 9/25
4:00 pm-12:10 am
1 stop8h 10m
Chicago O'Hare Intl
Thu 10/2
5:10 am-3:04 pm
1 stop9h 54m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Fri 10/10
5:28 pm-6:53 pm
Nonstop1h 25m
Chicago O'Hare Intl
Tue 10/14
2:20 pm-3:44 pm
Nonstop1h 24m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 10/30
8:40 pm-12:16 am
1 stop27h 36m
Chicago O'Hare Intl
Mon 11/3
6:00 am-9:07 am
1 stop27h 07m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 9/18
1:00 pm-4:19 pm
1 stop3h 19m
Chicago O'Hare Intl
Mon 9/22
8:15 am-12:00 pm
1 stop3h 45m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Fri 10/3
3:23 pm-4:48 pm
Nonstop1h 25m
Chicago O'Hare Intl
Sat 10/4
9:05 pm-10:35 pm
Nonstop1h 30m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 10/22
7:45 am-2:00 pm
1 stop6h 15m
Chicago O'Hare Intl
Wed 10/29
7:00 am-1:20 pm
1 stop6h 20m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 10/8
1:00 pm-7:24 am
1 stop18h 24m
Chicago O'Hare Intl
Thu 10/9
1:10 pm-4:35 pm
1 stop3h 25m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Fri 10/3
9:20 am-4:19 pm
1 stop6h 59m
Chicago O'Hare Intl
Sat 10/4
1:10 pm-12:00 pm
1 stop22h 50m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Mon 9/15
1:00 pm-4:19 pm
1 stop3h 19m
Chicago O'Hare Intl
Thu 9/18
8:15 am-4:35 pm
1 stop8h 20m
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 47% 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.
Comfort
Overall
Boarding
Food
Crew
Entertainment
Reviews
Deb,Jan 2025
MKE - ORD
Comfort
Overall
Boarding
Food
Crew
Entertainment
Reviews
Deb,Jan 2025
MKE - ORD
Comfort
Overall
Boarding
Food
Crew
Entertainment
Reviews
Deb,Jan 2025
MKE - ORD
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$119 | Average$278 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$140 | Average$213 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$149 | Average$315 | FlexibilityNo cancel fee | On-time69% |