| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option Chicago St. Louis | Outbound 09/23/25 direct UA2618 01h 24min | Return 09/30/25 direct UA4423 01h 30min |  United Airlines |  | ? | $128 | |
| Chicago St. Louis | Outbound 09/04/25 1 Stopover (UIN) 9X0488, 9X0463 03h 35min | Return 09/28/25 1 Stopover (UIN) 9X0464, 9X0485 03h 37min |  Southern Airways Express |  | $191 | ||
| Chicago St. Louis | Outbound 10/18/25 3 Stopovers (IAH, ATL, DTW) NK1150, NK3155, NK1210, NK3896 34h 56min | Return 11/17/25 2 Stopovers (DTW, EWR, LGA) NK3897, NK2318, NK0918 34h 33min |  Spirit Airlines |  | $267 | ||
| Chicago St. Louis | Outbound 09/23/25 direct UA2191 01h 24min | Return 09/30/25 direct UA4423 01h 30min | United Airlines |  | ? | $132 | |
| Chicago St. Louis | Outbound 09/23/25 direct AA1926 01h 28min | Return 09/30/25 direct AA6359 01h 29min |  American Airlines |  | ? | $133 | |
| Chicago St. Louis | Outbound 10/10/25 1 Stopover (UIN) 9X0488, 9X0467 19h 40min | Return 11/04/25 1 Stopover (UIN) 9X0460, 9X0489 18h 37min | Southern Airways Express | | ? | $172 | |
| Chicago St. Louis | Outbound 09/04/25 1 Stopover (UIN) 9X0488, 9X0463 03h 35min | Return 09/28/25 1 Stopover (BRL) 9X0447, 9X0444 03h 35min | Southern Airways Express |  | ? | $182 | |
| Chicago St. Louis | Outbound 10/18/25 direct UA4416 01h 27min | Return 11/17/25 1 Stopover (UIN) 9X0460, 9X0481 03h 32min | United Airlines | | ? | $185 | |
| Chicago St. Louis | Outbound 09/04/25 1 Stopover (UIN) 9X0488, 9X0463 03h 35min | Return 09/28/25 1 Stopover (UIN) 9X0464, 9X0485 03h 37min | Southern Airways Express |  | $202 | ||
| Chicago St. Louis | Outbound 09/04/25 direct UA2616 01h 24min | Return 09/28/25 1 Stopover (UIN) 9X0460, 9X0481 03h 32min | United Airlines | | $202 |
Stops
- Direct flight
Airline
- Southern Airways Express
- United Airlines
- American Airlines
- Frontier Airlines
- Spirit Airlines
Tips and tricks to help you find cheap flights from Chicago to St. Louis
Favorite airline: Southern Airways Express
52 % of flights from Chicago to St. Louis are booked with Southern Airways Express.
Southern Airways Express
52 %
United Airlines
22 %
Spirit Airlines
11 %
Direct flights are cheaper
On this route, direct flights are $77.00 cheaper than flights with a stopover.
non stop flight
1 stop
01h 27min
19h 20min
$86
$163
Favourite connection: via Quincy
Stopover flights on this route are especially popular via Quincy, making up 51 % of bookings.
Route
bookings
1 stopover Quincy, IL
11h 15min, from $169
51 %
Direct flights
01h 27min, from $86
29 %
1 stopover Fort Lauderdale-Hollywood International Airport, FL
11h 42min, from $264
8 %
Important flight information
Flight information: Chicago - St. Louis
| Roundtrip from | $127.55 |
|---|---|
| Flight duration | min. 01:05 / max. 08:55 |
| Return flight duration | min. 01:00/ max. 12:10 |
| Distance | 419 km |
| Flights per week | 203 |
| Departure airport | Airport Chicago-IL, all airports (CHI) |
| Arrival airport | Airport St. Louis - Lambert International Airport (STL) |
| Destination country | Flights to United States |
Alternative routes to United States
- Flight Chicago - New York from $86
- Flight Chicago - Las Vegas from $128
- Flight Chicago - Los Angeles from $103
- Flight Chicago - Miami from $98
- Flight Chicago - San Francisco from $200
- Flight Chicago - Tampa from $126
- Flight Chicago - Denver from $170
- Flight Chicago - Orlando from $86
- Flight Chicago - New Orleans from $155
- Flight Chicago - Boston from $93
Alternative flights to St. Louis
- Flight Atlanta - St. Louis from $125
- Flight Tampa - St. Louis from $194
- Flight Los Angeles - St. Louis from $255
- Flight Denver - St. Louis from $119
- Flight Orlando - St. Louis from $154
- Flight Las Vegas - St. Louis from $189
- Flight Boston - St. Louis from $264
- Flight Miami - St. Louis from $306
- Flight Dallas - St. Louis from $137
- Flight Fort Myers - St. Louis from $224
Flight destinations with a similar price
- Flight St. Louis - Hamburg from $747
- Flight St. Louis - Dusseldorf from $800
- Flight St. Louis - Frankfurt from $628
- Flight St. Louis - Berlin from $586
- Flight St. Louis - Munich from $608
- Flight St. Louis - Puerto Vallarta from $371
- Flight St. Louis - Dublin from $530
- Flight St. Louis - Amsterdam from $562
Flight destinations with a similar price
- Flight Chicago - Las Vegas from $128
- Flight Chicago - Tampa from $126
- Flight Chicago - Minneapolis from $132
- Flight Chicago - Louisville from $128
- Flight Chicago - Toronto from $122
- Flight Chicago - Owensboro from $117