Flights from St. Louis to Chicago O'Hare

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

Here you can compare cheap flights from St. Louis (STL) to Chicago O'Hare (ORD) 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 Chicago O'Hare. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
St. Louis
Chicago O'Hare
Outbound
06/28/26
direct
UA1744
01h 16min
Return
-
United Airlines ?
$184
Best option
St. Louis
Chicago O'Hare
Outbound
04/03/26
direct
AA1926
01h 20min
Return
04/16/26
direct
AA6399
01h 23min
American Airlines ?
$369
St. Louis
Chicago O'Hare
Outbound
04/03/26
direct
UA4395
01h 29min
Return
04/16/26
direct
UA4576
01h 26min
United Airlines ?
$369
St. Louis
Chicago O'Hare
Outbound
04/03/26
direct
UA4601
01h 29min
Return
04/16/26
direct
UA4576
01h 26min
United Airlines ?
$386
St. Louis
Chicago O'Hare
Outbound
04/03/26
direct
UA4423
01h 29min
Return
04/16/26
direct
UA4576
01h 26min
United Airlines ?
$401
St. Louis
Chicago O'Hare
Outbound
04/03/26
direct
AA4532
01h 22min
Return
04/16/26
direct
AA1926
01h 20min
American Airlines ?
$457
St. Louis
Chicago O'Hare
Outbound
04/03/26
1 Stopover (SEA)
AS0473, AS0410
10h 53min
Return
04/16/26
1 Stopover (SEA)
AS0329, AS0615
13h 55min
Alaska Airlines ?
$654
St. Louis
Chicago O'Hare
Outbound
04/03/26
direct
AA4532
01h 22min
Return
04/16/26
direct
AA3555
01h 28min
American Airlines ?
$977
St. Louis
Chicago O'Hare
Outbound
04/03/26
2 Stopovers (CUN, PUJ)
Y42015, DM7003, DM5420
27h 57min
Return
04/16/26
4 Stopovers (ZRH, TIA, VIE, EWR)
LX0007, LX1440, OS0754, OS0037, OS7749
53h 28min
Volaris, AraJet ?
$1,809
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from St. Louis to Chicago O'Hare

Favorite airline: Southern Airways Express
80 % of bookings on this flight route are made with Southern Airways Express, United Airlines and Spirit Airlines.
Southern Airways Express
47 %
United Airlines
20 %
Spirit Airlines
13 %
Cheapest weekday: Tuesday
Flight prices fluctuate throughout the week. Flights are 51 % cheaper on Tuesday.
Direct flights are cheaper
Compared to flights with a stopover, direct flights are $62.00 cheaper on this route.
non stop flight
1 stop
01h 21min
03h 15min
$97
$159
Favourite connection: via Quincy
The most popular route is via Quincy and is booked by 41 % of all travelers.
Route
bookings
1 stopover Quincy, IL
03h 15min, from $159
41 %
Direct flights
01h 21min, from $97
30 %
1 stopover Burlington, IA
19h 40min, from $191
10 %

Important flight information

Flight information: St. Louis - Chicago O'Hare

Cheapest outbound flight from $184.00
Roundtrip from $368.10
Distance 416 km
Departure airport Airport St. Louis - Lambert International Airport (STL)
Arrival airport Airport Chicago O'Hare International Airport, IL (ORD)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Chicago O'Hare
Flight destinations with a similar price
Flight destinations with a similar price