Flight Routes from Chicago O'Hare to St. Louis

Trip type

Our cheapest offers for flights from Chicago O'Hare to St. Louis

Here you can compare cheap flights from Chicago O'Hare (ORD) to St. Louis (STL) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to St. Louis. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Chicago O'Hare
St. Louis
Outbound
06/25/26
direct
AA6352
01h 28min
Return
06/30/26
direct
AA6352
01h 36min
American Airlines ?
$349
Chicago O'Hare
St. Louis
Outbound
06/25/26
direct
AA1004
01h 14min
Return
06/30/26
direct
AA4104
01h 32min
American Airlines
$392
Chicago O'Hare
St. Louis
Outbound
06/25/26
direct
AA6352
01h 28min
Return
06/30/26
direct
AA4537
01h 44min
American Airlines ?
$473
Chicago O'Hare
St. Louis
Outbound
06/25/26
direct
AA6352
01h 28min
Return
06/30/26
direct
AA4144
01h 44min
American Airlines ?
$475
Chicago O'Hare
St. Louis
Outbound
06/25/26
2 Stopovers (IAH, DEN)
F93135, F93205, F93302
27h 34min
Return
06/30/26
1 Stopover (ATL)
F94474, F91441
22h 12min
Frontier Airlines ?
$487
Chicago O'Hare
St. Louis
Outbound
06/25/26
1 Stopover (MSP)
DL1306, DL1609
05h 41min
Return
06/30/26
1 Stopover (ATL)
DL1536, DL1477
07h 00min
Delta Air Lines ?
$3,077
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: Chicago O'Hare - St. Louis

Roundtrip from $348.55
Distance 416 km
Departure airport Airport Chicago O'Hare International Airport, IL (ORD)
Arrival airport Airport St. Louis - Lambert International Airport (STL)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to St. Louis
Flight destinations with a similar price
Flight destinations with a similar price