Chicago to St Louis (ORD–STL) — Airlines, Schedules & Connections

ORD Airport Page →
258 mi airlines charter/private 351/wk
On-time Some delays Frequent delays
Flight Schedule 116 flights Verified 55m ago
Also flown by charter / private operators: NetJets Aviation.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
AA3069
Seat map
AA American
738 Seat map
12:24 AM
CDT T3
1:42 AM
CDT
1h 18m
42%
M T W T F S S
Prices
AC4912+2
AC Air Canada
E7W
7:05 AM
CDT T2
8:39 AM
CDT
1h 34m
28%
M T W T F S S
Prices
UA4613+1
UA United
CR7
8:40 AM
CDT T2
10:12 AM
CDT
1h 32m
24%
M T W T F S S
Prices
NZ2903cs
NZ Air New Zealand
CR5
8:40 AM
CDT T1
10:12 AM
CDT
1h 32m
22%
M T W T F S S
Prices
AA2818+1
Seat map
AA American
319 Seat map
8:55 AM
CDT T3
10:18 AM
CDT
1h 23m
42%
M T W T F S S
Prices
BA5335cs
BA British
319
8:55 AM
CDT T3
10:18 AM
CDT
1h 23m
30%
M T W T F S S
Prices
UA5456
Starts Sep 29
UA United
CR5
9:15 AM
CDT T2
10:48 AM
CDT
1h 33m
24%
M T W T F S S
Prices
AA2208
Starts Oct 5 Seat map
AA American
319 Seat map
9:29 AM
CDT T3
10:50 AM
CDT
1h 21m
42%
M T W T F S S
Prices
UA775+1
UA United
737
10:29 AM
CDT T1
12:02 PM
CDT
1h 33m
24%
M T W T F S S
Prices
NZ2899cs
NZ Air New Zealand
738
10:30 AM
CDT T1
12:03 PM
CDT
1h 33m
22%
M T W T F S S
Prices
UA5300
Starts Sep 26
UA United
CR5
10:40 AM
CDT T2
12:14 PM
CDT
1h 34m
24%
M T W T F S S
Prices
UA1044
Starts Sep 24
UA United
73G
10:40 AM
CDT T1
12:13 PM
CDT
1h 33m
24%
M T W T F S S
Prices
AA6468
Starts Oct 5 Seat map
AA American
CR7 Seat map
11:05 AM
CDT T3
12:35 PM
CDT
1h 30m
42%
M T W T F S S
Prices
RJ7010+1
RJ Royal Jordanian
CR7
11:13 AM
CDT T3
12:39 PM
CDT
1h 26m
M T W T F S S
Prices
RJ7301cs
RJ Royal Jordanian
CR7
11:43 AM
CDT T3
1:06 PM
CDT
1h 23m
M T W T F S S
Prices
UA4518+2
UA United
CR7
12:30 PM
CDT
2:01 PM
CDT
1h 31m
24%
M T W T F S S
Prices
UA4514+1
UA United
CR5
12:45 PM
CDT T2
2:15 PM
CDT
1h 30m
24%
M T W T F S S
Prices
AC3578cs
AC Air Canada
CR7
12:45 PM
CDT T2
2:15 PM
CDT
1h 30m
28%
M T W T F S S
Prices
UA5696
Starts Sep 24
UA United
E7W
12:45 PM
CDT T2
2:17 PM
CDT
1h 32m
24%
M T W T F S S
Prices
NZ2891+4
NZ Air New Zealand
CR5
12:58 PM
CDT T2
2:28 PM
CDT
1h 30m
22%
M T W T F S S
Prices
AA9931
AA American
1:00 PM
CDT
2:20 PM
CDT
1h 20m
42%
M T W T F S S
Prices
NZ2893cs
NZ Air New Zealand
7M8
2:00 PM
CDT T1
3:31 PM
CDT
1h 31m
22%
M T W T F S S
Prices
RJ7437cs
RJ Royal Jordanian
E70
2:28 PM
CDT T3
3:48 PM
CDT
1h 20m
M T W T F S S
Prices
AA6355+6
AA American
CR7
2:52 PM
CDT T3
4:05 PM
CDT
1h 13m
42%
M T W T F S S
Prices
AA3620+3
AA American
E70
2:56 PM
CDT T3
4:20 PM
CDT
1h 24m
42%
M T W T F S S
Prices
UA2000+1
UA United
738
2:59 PM
CDT T2
4:31 PM
CDT
1h 32m
24%
M T W T F S S
Prices
EI7704cs
EI Aer Lingus
E75
3:00 PM
CDT T3
4:24 PM
CDT
1h 24m
59%
M T W T F S S
Prices
GF6484cs
GF Great Barrier Airlines
E75
3:11 PM
CDT T3
4:35 PM
CDT
1h 24m
52%
M T W T F S S
Prices
EI7560+3
EI Aer Lingus
E75
3:15 PM
CDT T3
4:48 PM
CDT
1h 33m
59%
M T W T F S S
Prices
GF6745+2
GF Great Barrier Airlines
E75
3:17 PM
CDT T3
4:48 PM
CDT
1h 31m
52%
M T W T F S S
Prices
AS4413
AS Alaska
E75
3:17 PM
CDT T3
4:48 PM
CDT
1h 31m
51%
M T W T F S S
Prices
AA4645+1
AA American
E75
3:17 PM
CDT T3
4:48 PM
CDT
1h 31m
42%
M T W T F S S
Prices
OS7735cs
OS Austrian
CR7
3:35 PM
CDT T2
5:06 PM
CDT
1h 31m
28%
M T W T F S S
Prices
AV2334cs
AV avianca
CR5
4:45 PM
CDT T2
6:13 PM
CDT
1h 28m
56%
M T W T F S S
Prices
UA4416+4
UA United
CR5
5:21 PM
CDT T2
7:12 PM
CDT
1h 51m
24%
M T W T F S S
Prices
GF6480+2
GF Great Barrier Airlines
E70
5:29 PM
CDT T3
6:57 PM
CDT
1h 28m
52%
M T W T F S S
Prices
NZ2905cs
NZ Air New Zealand
CR5
5:45 PM
CDT T2
7:16 PM
CDT
1h 31m
22%
M T W T F S S
Prices
UA4412+2
UA United
CR7
5:45 PM
CDT T2
7:16 PM
CDT
1h 31m
24%
M T W T F S S
Prices
CM1416cs
CM Copa
CR5
5:55 PM
CDT T2
7:23 PM
CDT
1h 28m
13%
M T W T F S S
Prices
G74412
G7 GoJet Airlines
CR5
5:55 PM
CDT
7:23 PM
CDT
1h 28m
M T W T F S S
Prices
CX7590+3
CX Cathay Pacific
E70
6:00 PM
CDT T3
7:28 PM
CDT
1h 28m
M T W T F S S
Prices
EI7682+2
EI Aer Lingus
E70
6:03 PM
CDT T3
7:29 PM
CDT
1h 26m
59%
M T W T F S S
Prices
RJ7037
Seat map
RJ Royal Jordanian
738 Seat map
6:53 PM
CDT T3
8:19 PM
CDT
1h 26m
M T W T F S S
Prices
AA2444+4
Seat map
AA American
738 Seat map
7:18 PM
CDT T3
8:44 PM
CDT
1h 26m
42%
M T W T F S S
Prices
AY5757cs
AY Finnair
738
7:18 PM
CDT T3
8:44 PM
CDT
1h 26m
M T W T F S S
Prices
NZ2897cs
NZ Air New Zealand
CR5
7:45 PM
CDT T3
9:17 PM
CDT
1h 32m
22%
M T W T F S S
Prices
UA1625
Starts Sep 24
UA United
73G
7:50 PM
CDT T1
9:21 PM
CDT
1h 31m
24%
M T W T F S S
Prices
EK6308+1
EK Emirates
739
7:55 PM
CDT T3
9:26 PM
CDT
1h 31m
25%
M T W T F S S
Prices
NZ2901cs
NZ Air New Zealand
320
8:29 PM
CDT T3
10:00 PM
CDT
1h 31m
22%
M T W T F S S
Prices
UA1032+1
UA United
319
8:30 PM
CDT T3
10:01 PM
CDT
1h 31m
24%
M T W T F S S
Prices
UA4576+2
UA United
CR5
9:30 PM
CDT T2
10:59 PM
CDT
1h 29m
24%
M T W T F S S
Prices
NZ2895cs
NZ Air New Zealand
CR5
9:30 PM
CDT T1
10:59 PM
CDT
1h 29m
22%
M T W T F S S
Prices
AC4930+1
AC Air Canada
CR5
10:00 PM
CDT T2
11:29 PM
CDT
1h 29m
28%
M T W T F S S
Prices
QR2768
Seat map
QR Qatar
738 Seat map
11:05 PM
CDT T3 Red-eye
12:27 AM+1
CDT
1h 22m
43%
M T W T F S S
Prices
AA1926+7
Seat map
AA American
738 Seat map
5:00 AM
CDT T1
6:29 AM
CDT
1h 29m
73%
M T W T F S S
Prices
AS4358+1
Starts Oct 5 Seat map
AS Alaska
319 Seat map
5:00 AM
CDT T1
6:26 AM
CDT
1h 26m
M T W T F S S
Prices
JL7427cs
JL Japan
319
6:00 AM
CDT T1
7:34 AM
CDT
1h 34m
M T W T F S S
Prices
UA4423+4
UA United
CR7
6:00 AM
CDT T1
7:33 AM
CDT
1h 33m
52%
M T W T F S S
Prices
TK9564+1
TK Turkish
7M9
6:00 AM
CDT T1
7:30 AM
CDT
1h 30m
M T W T F S S
Prices
AC4913cs
AC Air Canada
CR5
6:00 AM
CDT T1
7:33 AM
CDT
1h 33m
M T W T F S S
Prices
UA3376
UA United
CR7
6:00 AM
CDT
7:30 AM
CDT
1h 30m
52%
M T W T F S S
Prices
NZ2894cs
NZ Air New Zealand
CR7
6:00 AM
CDT T1
7:33 AM
CDT
1h 33m
45%
M T W T F S S
Prices
RJ7019cs
RJ Royal Jordanian
319
6:06 AM
CDT T1
7:30 AM
CDT
1h 24m
M T W T F S S
Prices
AA4360
Starts Oct 5
AA American
E75
6:30 AM
CDT T1
8:00 AM
CDT
1h 30m
73%
M T W T F S S
Prices
AS6120cs
AS Alaska
319
6:55 AM
CDT T1
8:23 AM
CDT
1h 28m
M T W T F S S
Prices
AC4951cs
AC Air Canada
CR5
7:20 AM
CDT T1
9:00 AM
CDT
1h 40m
M T W T F S S
Prices
AA1997+1
Seat map
AA American
738 Seat map
7:21 AM
CDT T1
8:59 AM
CDT
1h 38m
73%
M T W T F S S
Prices
BA5690cs
BA British
738
7:21 AM
CDT T1
8:59 AM
CDT
1h 38m
M T W T F S S
Prices
RJ7508
Seat map
RJ Royal Jordanian
738 Seat map
7:23 AM
CDT T1
8:48 AM
CDT
1h 25m
M T W T F S S
Prices
NZ2890+4
NZ Air New Zealand
CR7
7:25 AM
CDT T1
9:01 AM
CDT
1h 36m
45%
M T W T F S S
Prices
CM1498+3
CM Copa
CR5
8:00 AM
CDT T1
9:35 AM
CDT
1h 35m
M T W T F S S
Prices
UA2792
Starts Sep 24
UA United
738
8:00 AM
CDT T1
9:31 AM
CDT
1h 31m
52%
M T W T F S S
Prices
UA2749
UA United
737
8:00 AM
CDT T1
9:34 AM
CDT
1h 34m
52%
M T W T F S S
Prices
UA4601+1
UA United
CR5
8:30 AM
CDT T1
10:05 AM
CDT
1h 35m
52%
M T W T F S S
Prices
NZ2900cs
NZ Air New Zealand
CR5
8:30 AM
CDT T1
10:06 AM
CDT
1h 36m
45%
M T W T F S S
Prices
EI7207cs
EI Aer Lingus
E70
9:08 AM
CDT T1
10:36 AM
CDT
1h 28m
M T W T F S S
Prices
CX7611cs
CX Cathay Pacific
E70
9:08 AM
CDT T1
10:36 AM
CDT
1h 28m
M T W T F S S
Prices
UA4395+2
UA United
CR7
9:23 AM
CDT T1
10:59 AM
CDT
1h 36m
52%
M T W T F S S
Prices
AA2818+1
Seat map
AA American
319 Seat map
11:01 AM
CDT T1
12:29 PM
CDT
1h 28m
73%
M T W T F S S
Prices
UA4517+2
UA United
CR7
11:15 AM
CDT T1
12:51 PM
CDT
1h 36m
52%
M T W T F S S
Prices
NZ2892cs
NZ Air New Zealand
CR5
11:25 AM
CDT T1
1:01 PM
CDT
1h 36m
45%
M T W T F S S
Prices
AA2208
Starts Oct 5 Seat map
AA American
319 Seat map
11:31 AM
CDT T1
12:59 PM
CDT
1h 28m
73%
M T W T F S S
Prices
UA4734
Starts Sep 29
UA United
CR5
11:35 AM
CDT T1
1:11 PM
CDT
1h 36m
52%
M T W T F S S
Prices
UA2779
UA United
738
12:59 PM
CDT T1
2:30 PM
CDT
1h 31m
52%
M T W T F S S
Prices
OS7736+3
OS Austrian
738
1:05 PM
CDT T1
2:36 PM
CDT
1h 31m
M T W T F S S
Prices
NZ2904+3
NZ Air New Zealand
738
1:05 PM
CDT T1
2:36 PM
CDT
1h 31m
45%
M T W T F S S
Prices
QR2739+1
Starts Oct 5 Seat map
QR Qatar
CR7 Seat map
1:06 PM
CDT T1
2:39 PM
CDT
1h 33m
M T W T F S S
Prices
AA6468
Starts Oct 5 Seat map
AA American
CR7 Seat map
1:06 PM
CDT T1
2:39 PM
CDT
1h 33m
73%
M T W T F S S
Prices
EI7204+3
EI Aer Lingus
CR7
1:20 PM
CDT T1
2:54 PM
CDT
1h 34m
M T W T F S S
Prices
IB4316cs
IB Iberia
CR7
1:25 PM
CDT T1
3:01 PM
CDT
1h 36m
M T W T F S S
Prices
RJ7366cs
RJ Royal Jordanian
CR7
1:25 PM
CDT T1
3:01 PM
CDT
1h 36m
M T W T F S S
Prices
GF4186cs
GF Great Barrier Airlines
CR7
1:25 PM
CDT T1
3:01 PM
CDT
1h 36m
M T W T F S S
Prices
QR2629cs
QR Qatar
CR7
1:25 PM
CDT T1
3:01 PM
CDT
1h 36m
M T W T F S S
Prices
UA4747
Starts Sep 26
UA United
CR5
1:27 PM
CDT T1
3:00 PM
CDT
1h 33m
52%
M T W T F S S
Prices
UA5917
Starts Oct 3
UA United
CR5
1:27 PM
CDT T1
3:00 PM
CDT
1h 33m
52%
M T W T F S S
Prices
UA1920
Starts Sep 24
UA United
73G
1:29 PM
CDT T1
3:00 PM
CDT
1h 31m
52%
M T W T F S S
Prices
AA6355+6
AA American
CR7
1:49 PM
CDT T1
3:30 PM
CDT
1h 41m
73%
M T W T F S S
Prices
EI7220cs
EI Aer Lingus
E75
2:35 PM
CDT T1
4:20 PM
CDT
1h 45m
M T W T F S S
Prices
UA5332
Starts Sep 24
UA United
E7W
3:11 PM
CDT T1
4:46 PM
CDT
1h 35m
52%
M T W T F S S
Prices
UA4500+1
UA United
CR7
3:32 PM
CDT T1
5:05 PM
CDT
1h 33m
52%
M T W T F S S
Prices
NZ2896cs
NZ Air New Zealand
CR7
3:32 PM
CDT T1
5:05 PM
CDT
1h 33m
45%
M T W T F S S
Prices
RJ7735cs
RJ Royal Jordanian
E75
4:54 PM
CDT T1
6:33 PM
CDT
1h 39m
M T W T F S S
Prices
IB4670cs
IB Iberia
E75
4:54 PM
CDT T1
6:33 PM
CDT
1h 39m
M T W T F S S
Prices
EI7653cs
EI Aer Lingus
E70
4:54 PM
CDT T1
6:33 PM
CDT
1h 39m
M T W T F S S
Prices
GF6525cs
GF Great Barrier Airlines
E75
5:05 PM
CDT T1
6:44 PM
CDT
1h 39m
M T W T F S S
Prices
AS4413
AS Alaska
E75
5:18 PM
CDT T1
7:13 PM
CDT
1h 55m
M T W T F S S
Prices
AY4201cs
AY Finnair
E75S
5:18 PM
CDT T1
7:13 PM
CDT
1h 55m
M T W T F S S
Prices
EI7205+3
EI Aer Lingus
E75
5:19 PM
CDT T1
7:12 PM
CDT
1h 53m
M T W T F S S
Prices
NZ2898cs
NZ Air New Zealand
320
5:30 PM
CDT T1
7:01 PM
CDT
1h 31m
45%
M T W T F S S
Prices
UA541+1
UA United
320
5:30 PM
CDT T1
7:01 PM
CDT
1h 31m
52%
M T W T F S S
Prices
AA4645+1
AA American
E75
6:01 PM
CDT T1
7:24 PM
CDT
1h 23m
73%
M T W T F S S
Prices
AA4259+4
AA American
E75
6:24 PM
CDT T1
7:41 PM
CDT
1h 17m
73%
M T W T F S S
Prices
UA4616+3
UA United
CR5
6:53 PM
CDT T1
8:29 PM
CDT
1h 36m
52%
M T W T F S S
Prices
AV2331cs
AV avianca
CR7
6:53 PM
CDT T1
8:29 PM
CDT
1h 36m
M T W T F S S
Prices
NZ2902cs
NZ Air New Zealand
CR7
6:54 PM
CDT T1
8:30 PM
CDT
1h 36m
45%
M T W T F S S
Prices
IB4541+1
IB Iberia
E70
8:07 PM
CDT T1
9:40 PM
CDT
1h 33m
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
MKE Milwaukee 3h 13m AAACAS WN Milwaukee (MKE) to St Louis flights
MCI Kansas City 3h 42m AAACAS WN Kansas City (MCI) to St Louis flights
OMA Omaha 3h 42m AAACAS WN Omaha (OMA) to St Louis flights
CMH Columbus 3h 49m AAASAY EJAWN Columbus (CMH) to St Louis flights
BNA Nashville 3h 50m AAACAS WN Nashville (BNA) to St Louis flights
DTW Detroit 3h 53m AAACAF AFDLKE Detroit (DTW) to St Louis flights
CLE Cleveland 3h 55m AAASAV WN Cleveland (CLE) to St Louis flights
MSP Minneapolis 3h 59m AAACAF AFAMDL Minneapolis (MSP) to St Louis flights
PIT Pittsburgh 4h 17m AAACAS WN Pittsburgh (PIT) to St Louis flights
ATL Atlanta 4h 31m AAACAF AMDLF9 Atlanta (ATL) to St Louis flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Chicago to St Louis
6 carriers, 351 flights/week nonstop.
6 Airlines 258 mi 1h 30m nonstop

ORD–STL is served by 6 airlines with nonstop service. United Airlines, American Airlines and GoJet Airlines lead the route. The flight covers 258 miles in approximately 1h 30m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop ORD–STL service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
UA United Airlines Also: AC, AV, CM, EK, NZ, OS 85 319, 737, 738, 73G, CR5, CR7, E7W 1h29-1h51 50% Star Alliance AC, AV, CM, EK, NZ, OS
AA American Airlines Also: AS, AY, BA, CX, EI, GF, IB, QR, RJ 57 319, 738, CR7, E70, E75 1h13-1h31 50% Oneworld AS, AY, BA, CX, EI, GF, IB, QR, RJ
G7 GoJet Airlines 7 CR5 1h28 50%
F9 Frontier 0 50%
LH Lufthansa 0 50%
OO SkyWest Airlines 0 50%
Aircraft on this route
319 Airbus A319 – AA, BA, UA
320 Airbus A320 – NZ
737 Boeing 737-700 – UA
738 Boeing 737-800 – AA, AY, NZ, QR, RJ, UA
739 Boeing 737-900 – EK
73G Boeing 737-700 – UA
7M8 Boeing 737 MAX 8 – NZ
CR5 Bombardier CRJ-550 – AC, AV, CM, G7, NZ, UA
CR7 Bombardier CRJ-700 – AA, AC, OS, RJ, UA
E70 Embraer 170 – AA, CX, EI, GF, RJ
E75 Embraer E175 – AA, AS, EI, GF
E7W Embraer E175 – AC, UA
Alliance coverage
Star Alliance: UA (85 flights/wk, 57%)
Oneworld: AA (57 flights/wk, 38%)
Unaffiliated: F9 + G7 + LH + OO (7 flights/wk, 5%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, ORD to STL direction.
Mon
49
flights
Tue
52
flights
Wed
49
flights
Thu
49
flights
Fri
49
flights
Sat
51
flights
Sun
52
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
54
Nonstop flights
351
Outbound / wk
397
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for ORD to STL.
1-STOP
One-Stop Connections
54
Hubs
~3h
Fastest
~19h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
4,195
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
ORD → STL
50%
Frequent delays expected. Consider flexible booking.
Departing
50%
Arriving
34%
Return
STL → ORD
100%
Generally reliable. Most flights run on time.
Departing
100%
Arriving
88%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. ORD delays → STL delays →

Other ways to reach St Louis from Chicago

Nearby airports with service to St. Louis Lambert International Airport.
Metric ORD→STL MDW→STL RFD→STL
Distance from ORD 15 mi 63 mi
Nonstop airlines 6 12 1
Weekly flights 351 64
Flight time 1h 30m 0h 59m 1h 53m
Departure OTP 50%
Airports within 200 miles of ORD with service to St. Louis Lambert International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
0h
St Louis is 0 hours the same as Chicago.
ORD: CDT · STL: CDT

When it's 6:00 PM in Chicago, it's 6:00 PM in St Louis.
Distance & Flight Time
258 mi / 415 km
Nonstop flight time is approximately 1h 30m gate to gate.
Getting to ORD

CTA Blue Line runs 24/7 from downtown Loop stations to O'Hare (45 min, $5). Pace buses serve suburbs. Ride-shares cost $35–55 from downtown depending on traffic; add 30+ minutes during rush hour on the Kennedy Expressway.Economy parking lots E/F connect via ATS people mover. Terminal 5 (international) is separate from Terminals 1–3; allow extra time for inter-terminal transfers.

ORD–STL Quick Facts

Key statistics for the Chicago to St Louis route.
Route details
Distance258 mi / 415 km
Flight time1h 30m
Time difference0 hours
Airlines (nonstop)6
Weekly flights351 out / 397 return
1-stop connectionsAvailable
Origin: ORD
IATA / ICAOORD / KORD
TimezoneAmerica/Chicago
Passengers/yr80.0M
Elevation680 ft / 207 m
Destination: STL
IATA / ICAOSTL / KSTL
TimezoneAmerica/Chicago
Passengers/yr15.6M
Elevation618 ft / 188 m

Frequently Asked Questions

Common questions about ORD to STL flights.
Nonstop flights from Chicago O'Hare International Airport to St. Louis Lambert International Airport take about 1h 30m gate to gate. The route covers 258 miles.
6 airlines operate flights from ORD to STL: United Airlines, American Airlines, GoJet Airlines, Frontier, and others.
This route has frequent daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include General Mitchell, Kansas City and Eppley Airfield.
On a single ticket, yes. Your bags are checked through to STL and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
Yes, return flights from STL to ORD are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include MDW, RFD and MKE. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.
American Airlines operates the most frequencies on ORD–STL, using regional jets from Envoy Air and SkyWest. Southwest Airlines also runs nonstop service from Chicago Midway (MDW) to St. Louis Lambert, not O'Hare. United has reduced presence on this short corridor. Spirit occasionally lists the route. The 475 km segment is short enough that competition from driving (4.5 hours on I-55) and Amtrak's Lincoln Service (5.5 hours) keeps air fares under sustained pressure.
The ORD–STL segment is predominantly served by Embraer ERJ-175 and ERJ-145 regional jets operated by Envoy Air and SkyWest under American Eagle branding. The short block time of 55 minutes and thin load factors make mainline narrowbody service uneconomical on most departures. Seat counts run 50 to 76 depending on variant.
For passengers departing from Chicago's Loop or Union Station, Amtrak Lincoln Service reaches St. Louis in 5 to 5.5 hours and costs $25 to $65 depending on advance booking. Door-to-door, the time difference with flying shrinks significantly once O'Hare check-in, security, taxi, and STL ground transport are factored in. The train is competitive for passengers not connecting onward from St. Louis.

Chicago O'Hare to St. Louis: Short-Haul Corridor Under Multimodal Pressure

ORD–STL is a thin short-haul route operating in the shadow of stronger alternatives. American Eagle regional jets carry most of the nonstop O'Hare capacity on 55-minute blocks. The segment is one where the operational math barely works: short block times, low yield, and meaningful competition from I-55 driving and Amtrak's Lincoln Service keep seat counts and frequencies modest. Southwest's stronger presence from Midway means the two Chicago airports collectively serve STL with more combined capacity than O'Hare alone.

St. Louis Lambert and Its Utilization Gap

Lambert–St. Louis International is a large airport built for a hub traffic level it no longer sees following American's hub closure and TWA's collapse. Terminal 1 handles American and its regional partners; Terminal 2 handles Southwest and other carriers. The airport's two-terminal configuration was originally designed for peak hub operations; current traffic uses it well below design capacity, which means short lines and fast security as a practical benefit. MetroLink light rail runs from the airport to downtown St. Louis in 40 minutes for $2.50, providing reliable landside access.