ORD to STL: Distance and Flight Time
The distance from Chicago O'Hare International Airport (ORD) to St. Louis Lambert International Airport (STL) is 415 km (258 mi). A typical nonstop flight covers it in about 1h, heading southwest. The distance is the same in either direction (STL to ORD).
How far is it from Chicago to St Louis?
The great-circle distance between Chicago O'Hare International Airport (ORD) and St. Louis Lambert International Airport (STL) is 415 km (258 mi, 224 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from ORD to STL?
A nonstop flight typically takes about 1h. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. STL is roughly southwest of ORD.
How is the ORD to STL route written in code?
The pair is written ORD-STL in IATA codes and KORD-KSTL in ICAO codes, the form used on a flight plan. Chicago O'Hare International Airport is ORD (KORD), St. Louis Lambert International Airport is STL (KSTL).
| ORD | STL | |
|---|---|---|
| Airport | Chicago O'Hare International Airport | St. Louis Lambert International Airport |
| ICAO code | KORD | KSTL |
| Country | United States | United States |
| Elevation | 680 ft | 618 ft |
| Rank by connections | #2 | #145 |
Both ICAO codes start with K, the prefix ICAO assigns to the contiguous United States, so this is a route inside one ICAO region. How ICAO prefixes are laid out.
The two fields sit at almost the same height, within 62 ft (19 m) of each other.
Airlines flying ORD to STL
2 airlines appear on this route in the open route dataset, 2 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| AA | American Airlines | AAL | American | Active |
| US | US Airways | USA | U S Air | Active |
A further 1 carrier sell this pair as a codeshare without operating it: UA.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Chicago from St Louis?
Chicago O'Hare International Airport (ORD) and St. Louis Lambert International Airport (STL) are 415 km (258 mi, 224 nautical miles) apart in a straight line.
How long is the flight from ORD to STL?
A typical nonstop flight between ORD and STL takes about 1h. Actual times vary with aircraft type, winds and routing.
What direction is STL from ORD?
St. Louis Lambert International Airport (STL) lies roughly southwest of Chicago O'Hare International Airport (ORD).
Which airlines fly ORD to STL?
2 airlines appear on the ORD-STL route in the open dataset, including American Airlines, US Airways.
Related routes
Other routes from Chicago (ORD):
Other routes from St Louis (STL):
ORD airport code · STL airport code · Busiest airports worldwide