Chicago (ORD) to St Louis (STL)
Flight time
≈ 1h 19m
Bearing
211° SW
Chicago (ORD) to St Louis (STL) is 258 miles (415 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ORD–STL
Filed traffic dataIn June 2026, GoJet Airlines operated the most departures, one of 8 carriers flying nonstop ORD–STL; the Bombardier CRJ-550 was the most common aircraft at 41% of departures; flights ran 76% full.
Departures
928
June 2026
Seats
78,935
both directions
Passengers
60,313
both directions
Load factor
76.4%
RPM ÷ ASM
Who flies ORD–STL?
GoJet Airlines operated the most nonstop ORD–STL departures in June 2026 (328), one of 8 carriers on the route.
- G7
328 departures · 16,400 seats
Share of departures35.3%81.6%
Load
- UA
179 departures · 29,296 seats
Share of departures19.3%70.4%
Load
- MQ
171 departures · 11,841 seats
Share of departures18.4%77.8%
Load
- OO
124 departures · 7,468 seats
Share of departures13.4%82.2%
Load
- AA
66 departures · 9,100 seats
Share of departures7.1%73.1%
Load
- YX
58 departures · 4,397 seats
Share of departures6.3%88.4%
Load
- LH
Lufthansa
1 departures · 255 seats
Share of departures0.1%91.0%
Load
- AS
1 departures · 178 seats
Share of departures0.1%94.9%
Load
What plane flies ORD–STL?
In June 2026, the Bombardier CRJ-550 flew 41% of ORD–STL departures — more than any other aircraft type.
- Bombardier CRJ-550
377 departures · 81.8% load
40.6% - Embraer E175
137 departures · 79.5% load
14.8% - Embraer E170
105 departures · 79.6% load
11.3% - Airbus A319
85 departures · 73.5% load
9.2% - Bombardier CRJ-700
62 departures · 86.7% load
6.7% - Boeing 737-900ER
58 departures · 63.9% load
6.3% - Boeing 737 MAX 8
46 departures · 75.8% load
5.0% - Boeing 737-800
43 departures · 73.5% load
4.6% - Boeing 737 MAX 9
7 departures · 66.2% load
0.8% - Airbus A321neo
3 departures · 72.8% load
0.3% - Airbus A321
2 departures · 91.6% load
0.2% - Airbus A320
2 departures · 58.3% load
0.2% - Airbus A330-200
1 departures · 91.0% load
0.1%
How has ORD–STL traffic changed?
Nonstop ORD–STL departures rose from 846 in July 2025 to 928 in June 2026.
Monthly nonstop ORD–STL traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
846 departures · 62,795 passengers
83.2%
Load
August 2025
803 departures · 54,187 passengers
79.5%
Load
September 2025
769 departures · 53,455 passengers
80.0%
Load
October 2025
826 departures · 56,535 passengers
76.2%
Load
November 2025
748 departures · 39,489 passengers
76.6%
Load
December 2025
744 departures · 39,086 passengers
77.2%
Load
January 2026
698 departures · 34,205 passengers
81.3%
Load
February 2026
767 departures · 40,501 passengers
82.0%
Load
March 2026
902 departures · 52,498 passengers
76.3%
Load
April 2026
985 departures · 56,857 passengers
69.8%
Load
May 2026
1,078 departures · 64,382 passengers
71.0%
Load
June 2026
928 departures · 60,313 passengers
76.4%
Load
By direction
Each direction is filed separately — they rarely match.
STL → ORD
74.8% full
468 departures · 29,712 passengers
ORD → STL
78.0% full
460 departures · 30,601 passengers
Nonstop ORD–STL traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Chicago (ORD) from St Louis (STL)?
ORD to STL is 258 miles (415 km / 224 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ORD to STL?
A nonstop covers the 258-mile great-circle distance in roughly 1h 19m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ORD–STL?
In June 2026, the Bombardier CRJ-550 flew the largest share of departures (40.6%), followed by the Embraer E175 (14.8%).
What mileage do I earn flying ORD–STL?
Distance-based programs credit off the 258-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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