BWI to STL: Distance and Flight Time
The distance from Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL) is 1,184 km (736 mi). A typical nonstop flight covers it in about 2h, heading west. The distance is the same in either direction (STL to BWI).
How far is it from Baltimore to St Louis?
The great-circle distance between Baltimore/Washington International Thurgood Marshall Airport (BWI) and St. Louis Lambert International Airport (STL) is 1,184 km (736 mi, 640 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 BWI to STL?
A nonstop flight typically takes about 2h. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. STL is roughly west of BWI.
How is the BWI to STL route written in code?
The pair is written BWI-STL in IATA codes and KBWI-KSTL in ICAO codes, the form used on a flight plan. Baltimore/Washington International Thurgood Marshall Airport is BWI (KBWI), St. Louis Lambert International Airport is STL (KSTL).
| BWI | STL | |
|---|---|---|
| Airport | Baltimore/Washington International Thurgood Marshall Airport | St. Louis Lambert International Airport |
| ICAO code | KBWI | KSTL |
| Country | United States | United States |
| Elevation | 146 ft | 618 ft |
| Rank by connections | #107 | #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.
STL sits 472 ft (144 m) higher than BWI, which is a real difference in air density on takeoff.
Airlines flying BWI to STL
1 airline appear on this route in the open route dataset, 1 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 |
|---|---|---|---|---|
| WN | Southwest Airlines | SWA | Southwest | Active |
A further 1 carrier sell this pair as a codeshare without operating it: FL.
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 Baltimore from St Louis?
Baltimore/Washington International Thurgood Marshall Airport (BWI) and St. Louis Lambert International Airport (STL) are 1,184 km (736 mi, 640 nautical miles) apart in a straight line.
How long is the flight from BWI to STL?
A typical nonstop flight between BWI and STL takes about 2h. Actual times vary with aircraft type, winds and routing.
What direction is STL from BWI?
St. Louis Lambert International Airport (STL) lies roughly west of Baltimore/Washington International Thurgood Marshall Airport (BWI).
Which airlines fly BWI to STL?
1 airline appear on the BWI-STL route in the open dataset, including Southwest Airlines.
Related routes
Other routes from Baltimore (BWI):
Other routes from St Louis (STL):
BWI airport code · STL airport code · Busiest airports worldwide