The sector is held by Southwest Airlines.
Airport pair · hand carry reference
BWI Baltimore to STL St Louis
Baltimore Washington, the United States, to St Louis Lambert, the United States. Computed from the scheduled network held on 2026-09-07.
- Nonstop
- 4.3 times a day
- Great circle
- 1,185 km
- Block, estimated
- 2h 01m
- Door to door
- 8h 46m
What BWI to STL looks like
The BWI to STL sector, the carriers on it and the flying time, before anything is promised to anybody.
Baltimore BWI to St Louis STL is a short sector of 1,185 km by great circle, flown nonstop 4.3 times a day.
At the cruise speed this site models for 1,185 km, 830 km an hour, and thirty minutes of taxi at the two ends, the flight blocks at about 2h 01m.
Baltimore BWI is a large airport in the network held here, 142 scheduled destinations and 322.4 departures a day. St Louis STL has 108 destinations and 229.7 departures a day.
St Louis is one hour behind of Baltimore all year.
The pair sits inside the Americas, a corridor where the site already publishes 13 written lanes that go into customs and ground detail this page does not.
Who flies the sector, and how often
Average daily frequencies on BWI to STL from the scheduled route statistics, both directions, with the operating carriers named.
| Direction | Flights a day | Flights a week | Operated by |
|---|---|---|---|
| BWI to STL | 4.29 | 30 | Southwest Airlines |
| STL to BWI | 4.14 | 29 | Southwest Airlines |
One carrier holds the sector, Southwest Airlines, so a cancellation has no second nonstop behind it and the connections below stop being theoretical.
At 4.3 times a day there is usually another departure within a few hours, which is what makes a same day booking on this pair realistic.
Between them the two directions put about 59 departures a week on BWI to STL, which is the number that decides whether a seat can be found today or on Thursday.
The clock from collection to signature
The same ground timings the route calculator starts from, applied to the 2h 01m block time on BWI to STL. Change any of them in the tool further down and the total moves with them.
| Stage | Allowed | Elapsed |
|---|---|---|
| Collection and the run to BWI | 90 min | 1h 30m |
| At BWI before departure | 180 min | 4h 30m |
| BWI to STL in the air, estimated | 121 min | 6h 31m |
| Formalities at STL | 90 min | 8h 01m |
| Delivery run in St Louis | 45 min | 8h 46m |
| Door to door | 526 min | 8h 46m |
On the desk standard ground timings, ninety minutes to collect and reach the airport, three hours at the airport before departure, ninety minutes of arrival formalities and a forty five minute delivery run, the door to door figure for BWI to STL is 8h 46m.
A courier who leaves Baltimore at 09:00 local is on the ground in St Louis at about 10:01 local and at the door by 12:16 the same day.
Working backwards from a six in the evening handover in St Louis, the last useful departure from Baltimore is around 14:44 local.
When the nonstop does not work
Every airport that joins the two ends, ranked by when they land, among the ones whose weaker leg is dependable enough to plan on. Connection time is allowed for the size of the hub. 41 of them join BWI to STL.
| Connecting at | BWI to hub, flights a day | Hub to STL, flights a day | Track, km | Estimated, gate to gate |
|---|---|---|---|---|
| Washington DC DCA | 1 | 7.43 | 1,202 | 3h 47m |
| Pittsburgh PIT | 3.29 | 2.14 | 1,227 | 3h 53m |
| Columbus CMH | 3.43 | 2 | 1,198 | 4h 01m |
| Washington DC IAD | 0.86 | 2.43 | 1,191 | 4h 02m |
| Milwaukee MKE | 3 | 2.14 | 1,541 | 4h 04m |
| Cleveland CLE | 3.43 | 2.43 | 1,288 | 4h 09m |
With 4.3 times a day on the nonstop, a connection here is a disruption plan rather than a routing, and it is listed because a closed runway or a cancellation wave is exactly when nobody has time to work it out.
41 airports connect the two ends on the scheduled network held here. The quickest of the dependable ones is Washington DC DCA, where the weaker of the two legs still runs about once a day.
Through DCA the routing covers 1,202 km against the 1,185 km nonstop track and takes about 3h 47m in the air and on the ground at the hub, allowing 75 minutes to connect at an airport of that size.
That is only 1h 46m more than the nonstop, which is close enough that a connection is worth taking when the nonstop is full or badly timed.
Behind it, Pittsburgh PIT at 3h 53m and Columbus CMH at 4h 01m hold the same connection, so a booking has three hubs to try before it has to wait for the nonstop.
If nothing suitable leaves Baltimore, Washington DC DCA is 48 km away by great circle and carries 112 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
Plan Baltimore to St Louis yourself
The same tool the dispatchers use, open to anybody and free. It is loaded with this pair already. Change either end, add a stopover or a preferred airline, and it works out the connection, the transit and the door to door clock, with the real departures underneath. Put it on your own site if it is useful to you.
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Restrictions
Where this came from, and where to look next
- Carriers and frequencies: AeroDataBox scheduled route statistics, retrieved 2026-09-07. Average daily flights, not a timetable.
- Distances: great circle from published coordinates. They read short against a flown track, which is why the block time above applies a factor to them.
- Block and connection times: the same model the route calculator lower down this page runs, at the same rounding.
- Restrictions: the airport notes file, checked 2026-09-07.
- Industrial sites: public company information. Nothing here says or implies that any company named is a customer of any courier operator.
Who publishes this. OnBoard Courier is a placement desk in Dubai. An assignment is carried out by a vetted partner operator, with the desk as the single point of contact from the quote to the signature. This page exists because our own dispatchers need the answer for BWI to STL in the twenty minutes before a promise is made, and a reference only one operator can read is not a reference. Free to read, quote and cite. Found an error? Tell us and we will correct it.
If you need something moved rather than looked up, the desk prices a hand carry in fifteen minutes.
More pairs through BWI and STL: Atlanta to Baltimore, Boston to Baltimore, Detroit to Baltimore, Baltimore to Miami, Houston to Baltimore, Baltimore to Phoenix, San Diego to Baltimore, Charlotte to Baltimore.