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Cheap flights from Chicago to St Louis

61 nonstop flights a week, 7 of them today. Operated by 3 airlines, about 1h 24m in the air, 262 mi (422 km). Tickets from $72, nonstop from $70.

Flights from Chicago to St Louis

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Prices by day: Chicago to St Louis

Lowest one-way price in dollars from recent searches, cheap days in green. Press a day to see flights and exact prices.

Filters

Best fares from Chicago to St Louis

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $70 9 December 2026, nonstop Cheapest nonstop $70 9 December 2026, American Airlines Cheapest in the next 7 days $80 15 November, Sun Cheapest weekend departure $72 Sat, 9 January 2027 Cheapest month December 2026 tickets from $70

Chicago to St Louis at a glance

flight time, from 1h 10m to 13h 40m
1h 24m
straight-line distance
262 mi (422 km)
flights a week
61
flights today
7
first and last departure
06:30 - 11:15
lowest price, nonstop, 9 January
$72
lowest nonstop price
$70
airlines
3

Chicago to St Louis ticket prices by month

Lowest one-way fare found by recent searches

Cheapest month: December 2026, tickets from $70. Prices come from searches over the last few days; check the search for your exact date.

The most expensive month is November 2026: from $80. The average across months is $74.

Chicago to St Louis flight schedule

61 flights a week, 7 today, 63 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
WN 3042
Southwest Airlines
06:30 Chicago Midway International
07:45 Lambert-St. Louis International, terminal 2
1h 15m
Mon, Thu, Fri, Sun
Boeing 737
WN 3042
Southwest Airlines
06:35 Chicago Midway International
07:55 Lambert-St. Louis International, terminal 2
1h 20m
Sat
Boeing 737
UA 4613
United Airlines
07:27 , terminal 2
08:55 Lambert-St. Louis International, terminal 1
1h 28m
Daily
WN 3042
Southwest Airlines
07:35 Chicago Midway International
08:50 Lambert-St. Louis International, terminal 2
1h 15m
Mon, Tue, Wed, Thu
Boeing 737
WN 3002
Southwest Airlines
07:50 Chicago Midway International
09:10 Lambert-St. Louis International, terminal 2
1h 20m
Sat
Boeing 737
WN 845
Southwest Airlines
08:45 Chicago Midway International
10:05 Lambert-St. Louis International, terminal 2
1h 20m
Mon, Thu, Fri, Sun
AA 3190
American Airlines
08:52 , terminal 3
10:16 Lambert-St. Louis International, terminal 1
1h 24m
Thu
Airbus A319
UA 3556
United Airlines
08:55 , terminal 2
10:32 Lambert-St. Louis International, terminal 1
1h 37m
Mon, Tue, Wed, Thu, Fri, Sun
Embraer 175
UA 3556
United Airlines
09:00 , terminal 2
10:37 Lambert-St. Louis International, terminal 1
1h 37m
Sat
Embraer 175
AA 3190
American Airlines
09:10 , terminal 3
10:34 Lambert-St. Louis International, terminal 1
1h 24m
Mon, Fri, Sun
Airbus A319
AA 3190
American Airlines
09:20 , terminal 3
10:44 Lambert-St. Louis International, terminal 1
1h 24m
Sat
Airbus A319
AA 3111
American Airlines
09:30 , terminal 3
10:53 Lambert-St. Louis International, terminal 1
1h 23m
Mon, Tue, Wed, Thu, Fri, Sun
Airbus A319
AA 3484
American Airlines
09:30 , terminal 3
10:53 Lambert-St. Louis International, terminal 1
1h 23m
Sat
Embraer 170
WN 1089
Southwest Airlines
09:40 Chicago Midway International
11:00 Lambert-St. Louis International, terminal 2
1h 20m
Mon, Tue, Wed, Thu
WN 727
Southwest Airlines
10:25 Chicago Midway International
11:40 Lambert-St. Louis International, terminal 2
1h 15m
Sat
UA 2844
United Airlines
10:45 , terminal 1
12:10 Lambert-St. Louis International, terminal 1
1h 25m
Mon, Tue, Wed, Thu, Fri, Sun
Airbus A319
UA 4438
United Airlines
10:45 , terminal 2
12:12 Lambert-St. Louis International, terminal 1
1h 27m
Sat
WN 459
Southwest Airlines
11:10 Chicago Midway International
12:20 Lambert-St. Louis International, terminal 2
1h 10m
Mon, Thu, Fri, Sun
Boeing 737
AA 6332
American Airlines
11:15 , terminal 3
12:50 Lambert-St. Louis International, terminal 1
1h 35m
Daily
Canadair reg jet 700

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 24 November.

FlightDepartsArrivesDurationDaysAircraft
WN 3042
Southwest Airlines
08:00 Chicago Midway International
09:25 Lambert-St. Louis International, terminal 2
1h 25m
Seasonal
WN 3043
Southwest Airlines
09:50 Chicago Midway International
11:05 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
Boeing 737
WN 762
Southwest Airlines
05:40 Chicago Midway International
06:55 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
Boeing 737-800
AA 3190
American Airlines
09:09 , terminal 3
10:33 Lambert-St. Louis International, terminal 1
1h 24m
Seasonal
Airbus A319
AA 6332
American Airlines
10:45 , terminal 3
12:14 Lambert-St. Louis International, terminal 1
1h 29m
Seasonal
Canadair reg jet 700
UA 5252
United Airlines
10:45 , terminal 2
12:13 Lambert-St. Louis International, terminal 1
1h 28m
Seasonal
Embraer 175
UA 4613
United Airlines
07:20 , terminal 2
08:48 Lambert-St. Louis International, terminal 1
1h 28m
Seasonal
UA 2844
United Airlines
10:41 , terminal 1
12:06 Lambert-St. Louis International, terminal 1
1h 25m
Seasonal
Boeing 737-800
WN 2510
Southwest Airlines
05:50 Chicago Midway International
07:10 Lambert-St. Louis International, terminal 2
1h 20m
Seasonal
Boeing 737
WN 1523
Southwest Airlines
09:45 Chicago Midway International
11:00 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
UA 3569
United Airlines
09:00 , terminal 2
10:30 Lambert-St. Louis International, terminal 1
1h 30m
Seasonal
Embraer 175
UA 1857
United Airlines
10:52 , terminal 1
12:22 Lambert-St. Louis International, terminal 1
1h 30m
Seasonal
Boeing 737-700
UA 4613
United Airlines
09:00 , terminal 2
10:30 Lambert-St. Louis International, terminal 1
1h 30m
Seasonal
AA 3198
American Airlines
09:30 , terminal 3
10:52 Lambert-St. Louis International, terminal 1
1h 22m
Seasonal
Airbus A319
UA 5411
United Airlines
10:52 , terminal 2
12:24 Lambert-St. Louis International, terminal 1
1h 32m
Seasonal
AA 6210
American Airlines
06:50 , terminal 3
08:29 Lambert-St. Louis International, terminal 1
1h 39m
Seasonal
Canadair reg jet 700
UA 4435
United Airlines
10:45 , terminal 2
12:26 Lambert-St. Louis International, terminal 1
1h 41m
Seasonal
UA 4613
United Airlines
08:55 , terminal 2
10:35 Lambert-St. Louis International, terminal 1
1h 40m
Seasonal
UA 1857
United Airlines
10:42 , terminal 1
12:15 Lambert-St. Louis International, terminal 1
1h 33m
Seasonal
Boeing 737-700
WN 2767
Southwest Airlines
08:05 Chicago Midway International
09:30 Lambert-St. Louis International, terminal 2
1h 25m
Seasonal
AA 4771
American Airlines
09:45 , terminal 3
11:20 Lambert-St. Louis International, terminal 1
1h 35m
Seasonal
Embraer EMB 175
WN 800
Southwest Airlines
10:05 Chicago Midway International
11:20 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
Boeing 737
AA 4125
American Airlines
09:30 , terminal 3
11:04 Lambert-St. Louis International, terminal 1
1h 34m
Seasonal
Embraer EMB 175
WN 2767
Southwest Airlines
06:35 Chicago Midway International
07:55 Lambert-St. Louis International, terminal 2
1h 20m
Seasonal
WN 1221
Southwest Airlines
10:20 Chicago Midway International
13:10 Lambert-St. Louis International, terminal 2
2h 50m
Seasonal
WN 2767
Southwest Airlines
08:00 Chicago Midway International
09:25 Lambert-St. Louis International, terminal 2
1h 25m
Seasonal
AA 4771
American Airlines
09:30 , terminal 3
11:05 Lambert-St. Louis International, terminal 1
1h 35m
Seasonal
Embraer EMB 175
WN 2767
Southwest Airlines
06:30 Chicago Midway International
07:50 Lambert-St. Louis International, terminal 2
1h 20m
Seasonal
WN 391
Southwest Airlines
09:15 Chicago Midway International
10:30 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
WN 972
Southwest Airlines
11:00 Chicago Midway International
12:15 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
Boeing 737
UA 4613
United Airlines
09:04 , terminal 2
10:41 Lambert-St. Louis International, terminal 1
1h 37m
Seasonal
AA 6438
American Airlines
10:00 , terminal 3
11:26 Lambert-St. Louis International, terminal 1
1h 26m
Seasonal
Canadair reg jet 700
WN 4215
Southwest Airlines
10:10 Chicago Midway International
11:30 Lambert-St. Louis International, terminal 2
1h 20m
Seasonal
UA 247
United Airlines
10:37 , terminal 1
12:06 Lambert-St. Louis International, terminal 1
1h 29m
Seasonal
Boeing 737-700
WN 339
Southwest Airlines
07:55 Chicago Midway International
09:20 Lambert-St. Louis International, terminal 2
1h 25m
Seasonal
Boeing 737
UA 4613
United Airlines
06:55 , terminal 2
08:19 Lambert-St. Louis International, terminal 1
1h 24m
Seasonal
UA 3556
United Airlines
09:04 , terminal 2
10:41 Lambert-St. Louis International, terminal 1
1h 37m
Seasonal
Embraer 175
AA 5003
American Airlines
10:00 , terminal 3
11:26 Lambert-St. Louis International, terminal 1
1h 26m
Seasonal
Canadair reg jet 700
WN 2985
Southwest Airlines
07:10 Chicago Midway International
08:25 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
WN 2986
Southwest Airlines
09:10 Chicago Midway International
10:25 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
Boeing 737
WN 2985
Southwest Airlines
08:00 Chicago Midway International
09:15 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
Boeing 737-800
WN 1699
Southwest Airlines
11:20 Chicago Midway International
12:30 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
Boeing 737
WN 2986
Southwest Airlines
10:15 Chicago Midway International
11:35 Lambert-St. Louis International, terminal 2
1h 20m
Seasonal
Boeing 737
UA 4613
United Airlines
07:00 , terminal 2
08:37 Lambert-St. Louis International, terminal 1
1h 37m
Seasonal
UA 3495
United Airlines
10:50 , terminal 2
12:20 Lambert-St. Louis International, terminal 1
1h 30m
Seasonal
Embraer 175
AA 3493
American Airlines
06:59 , terminal 3
08:24 Lambert-St. Louis International, terminal 1
1h 25m
Seasonal
Embraer EMB 175
WN 4773
Southwest Airlines
08:15 Chicago Midway International
09:25 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
AA 2500
American Airlines
10:25 , terminal 3
11:47 Lambert-St. Louis International, terminal 1
1h 22m
Seasonal
Airbus A319
WN 705
Southwest Airlines
05:15 Chicago Midway International
18:55 Lambert-St. Louis International, terminal 2
13h 40m
Seasonal
WN 4773
Southwest Airlines
06:55 Chicago Midway International
08:10 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
Boeing 737
WN 1147
Southwest Airlines
08:45 Chicago Midway International
10:00 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
WN 4773
Southwest Airlines
06:25 Chicago Midway International
07:35 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
Boeing 737
WN 1147
Southwest Airlines
10:10 Chicago Midway International
11:25 Lambert-St. Louis International, terminal 2
1h 15m
Seasonal
Boeing 737
WN 4773
Southwest Airlines
08:05 Chicago Midway International
09:15 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
WN 1582
Southwest Airlines
09:45 Chicago Midway International
10:55 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
Boeing 737
AA 3493
American Airlines
07:05 , terminal 3
08:32 Lambert-St. Louis International, terminal 1
1h 27m
Seasonal
Embraer EMB 175
WN 2766
Southwest Airlines
08:00 Chicago Midway International
09:10 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
Boeing 737
WN 4187
Southwest Airlines
09:05 Chicago Midway International
10:15 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
WN 2766
Southwest Airlines
06:20 Chicago Midway International
07:30 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
WN 2766
Southwest Airlines
08:20 Chicago Midway International
09:30 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
WN 4187
Southwest Airlines
09:50 Chicago Midway International
11:00 Lambert-St. Louis International, terminal 2
1h 10m
Seasonal
Boeing 737
AA 3493
American Airlines
07:04 , terminal 3
08:31 Lambert-St. Louis International, terminal 1
1h 27m
Seasonal
Embraer EMB 175
AA 3493
American Airlines
07:00 , terminal 3
08:24 Lambert-St. Louis International, terminal 1
1h 24m
Seasonal
Embraer 170

Days of the week are taken from the schedule for the next 14 days; schedules change by season. The search shows seat availability and the price for your date.

Airlines flying Chicago to St Louis

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Southwest Airlines21 a week United Airlines21 a week American Airlines19 a week

Airports

Where flights from Chicago to St Louis depart and land

Departure from Chicago

Chicago Midway International MDW

21 flights a week, 9 mi (14 km) from the city centre

About the airport

Arrival in St Louis

Lambert-St. Louis International STL

61 flights a week, terminals 1, 2, 12 mi (19 km) from the city centre

About the airport

Frequently asked questions

How long is the flight from Chicago to St Louis?
A nonstop flight takes 1 hour 24 minutes on average, from 1h 10m to 13h 40m depending on the flight.
How far is St Louis from Chicago?
262 mi (422 km) in a straight line between the cities.
Which airlines fly nonstop from Chicago to St Louis?
Southwest Airlines (21 a week), United Airlines (21 a week) and American Airlines (19 a week).
How many flights a day are there from Chicago to St Louis?
7 flights today and 61 a week, about 8.7 a day on average.
When are the first and last flights from Chicago to St Louis?
The first departure is at 06:30 (WN3042), the last at 11:15 (AA6332). Local time.
What is the cheapest month to fly from Chicago to St Louis?
December 2026: tickets from $70. The most expensive is November 2026, from $80.
What is the cheapest upcoming date to fly from Chicago to St Louis?
9 December 2026 (Wednesday): from $70 one way, nonstop, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Chicago to St Louis?
American Airlines: nonstop tickets from $70 on 9 December by recent searches. Prices change daily, so compare the sellers in the search.
Which Chicago airport do flights to St Louis leave from?
Chicago Midway International (21 a week).