STL → BWISt Louis to Baltimore

live

Direct flights from St Louis (STL) to Baltimore (BWI): 32 nonstop departures observed each week across 2 airlines. 88% of the last 26 tracked flights arrived within 15 minutes of schedule. The median arrival is 4 minutes early. No cancellations were recorded across the 29 tracked flights. The nonstop covers 1,184 km, an estimated 2 hours 1 minutes in the air. Measured by Pro Flight Search from live flight boards at St Louis and Baltimore. Updated 15 November 2026 at 01:05 UTC.

Today, STL → BWI

Sat 14 Nov · local times
WN4080SouthwestIn the air, 78 min late

Left STL at 17:28, 78 min after its 16:10 slot.

Landing
18:43BWI board estimate · sched 19:10
Track WN4080 →
  1. 06:25 WN4124Southwest On scheduleT2 BWI 09:20scheduled
  2. 10:35 WN734Southwest Left 10:46 +11 Landed 13:21 −9
  3. 16:10 WN4080Southwest Left 17:28 +78 BWI est. 18:43In the air · sched 19:10
  4. 18:06 SY3019Sun Country Airlines Left 18:14 +8 ·

Checked STL board 19:05 · BWI board 15:33

STL St Louis heavy · +59
BWI Baltimore smooth · +5
1,184 km · ~2h 01m est.
dep bank 06:40–20:2532x weekly
Runs reliable · 2 airlines · 32x weekly · nonstop
88% on time

of the last 26 tracked STL → BWI flights arrived within 15 minutes

Median arrival delay is −4 min. 0 of 29 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−4 minacross the last 26 arrivals
Flight time~2h 01mestimated from route distance
Weekly departures32x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 29

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest AirlinesSun Country Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Southwest AirlinesWN86% on time

Flights WN4124 varies daily · WN734 10:15 Mo Th Fr Sa Su · WN2834 12:40 Tu We · WN4080 varies daily

Sun Country AirlinesSY100% on time

Flights SY3019 18:06 daily

History

operated legs · board outcomes
11-14SY3019departed+8
11-14WN4080departed+78
11-14WN734dep +11 → arr−9
11-13WN4080dep +217 → arr+199
11-13WN4124dep +9 → arr−10
11-13WN734dep +11 → arr−4
11-12SY3019dep +11 → arr+9
11-12WN380dep +35 → arr+14
11-12WN4080dep +19 → arr+2
11-12WN4124dep +15 → arr−1
11-12WN734dep +1 → arr−20
11-11SY3019dep −5 → arr−3
11-11WN2834dep +20 → arr+0
11-11WN4080dep +18 → arr−15
11-11WN4124dep +4 → arr−18
11-10SY3019dep −12 → arr−8
11-10WN2834dep +11 → arr−1
11-10WN4080dep +4 → arr−26
11-10WN4124departed+4
11-09SY3019dep −12 → arr−7
11-09WN4080dep +49 → arr+31
11-09WN4124dep +10 → arr−6
11-09WN63dep +3 → arr−21
11-09WN734dep +15 → arr−3
11-08SY3019dep −10 → arr−5
11-08WN380dep +48 → arr+23
11-08WN4080dep +26 → arr+4
11-08WN4124dep +8 → arr−7
11-08WN734dep +14 → arr−5

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
STLSt Louis +59 min heavy 🌤 clear · N 0 kt Full STL delay board →
BWIBaltimore +5 min smooth 🌤 few clouds · WNW 9 kt Full BWI delay board →

Weather lens

Conditions are tightest at STL and BWI: a 39% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +8 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →

How the St Louis to Baltimore route actually runs

Pro Flight Search records official board updates for nonstop STL to BWI flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: St Louis (STL) to Baltimore (BWI) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/STL-BWI
How we measure this →

STL to BWI questions

Is STL–BWI running on time right now?

Some delays possible. The departure side at STL is the weaker end, route health score 56/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on STL–BWI?

Operators schedule morning departures around 10:15 and evening departures around 18:06 from STL. Earlier flights typically land before destination-airport delays accumulate later in the day; check the BWI delay card to confirm conditions when you'd arrive.

How long is the flight from STL to BWI?

Great-circle distance is 1,184 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 114–131 min gate-to-gate on this route.

How often does STL–BWI fly?

2 carriers operate this route, around 32 flights a week between them. Compare carrier days and times in the airline list above.