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Baltimore/Washington International Thurgood Marshall (BWI) departure delays

Name: Baltimore/Washington International Thurgood Marshall (BWI) departure delays
Creator: FlightLabs

Of 5,975 sampled departures, 59.0% left 15 minutes or more behind schedule. Average lateness was 32.0 minutes. Sample window: Jan 7, 2026 to May 7, 2026.

These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.

When departures are on time

Best hour to depart: 06:00–06:59, 23.1% late.
Best day of week: Wednesday, 49.5% late.

Airlines with the most late departures

Airline	Flights sampled	Late	Average lateness
ChallengAir (1I)	141	78.7%	36.8 min
British Airways (BA)	26	73.1%	35.2 min
Air Transport International Inc. (8C)	116	67.2%	26.8 min
Icelandair (FI)	33	66.7%	30.8 min
Southwest Airlines Co. (WN)	3,976	65.7%	34.5 min

Routes from BWI

BWI to ATL — 123 flights per week
BWI to MCO — 117 flights per week
BWI to TPA — 84 flights per week
BWI to BOS — 78 flights per week

The departures that are late right now

59.0% of this BWI sample left 15 minutes late or more. GET /flight_delays returns the ones that are late at this moment: airline, flight number, scheduled time, actual time and minutes of delay.

https://www.goflightlabs.com/flight_delays?access_key=YOUR_ACCESS_KEY&delay=15&type=departures&dep_iata=BWI

Example response

Field names match the live API. This flight only shows the shape. It is not a live result.

{ "success": true, "data": [ { "airline_iata": "AA", "flight_iata": "AA100", "flight_number": "100", "dep_iata": "BWI", "dep_time": "2024-03-15 08:00", "dep_actual": "2024-03-15 08:22", "dep_delayed": 22, "status": "active" } ] }

That URL still says YOUR_ACCESS_KEY. A 7-day trial replaces it with a real key and returns the BWI departures that are late right now, in the JSON above. After the trial, Starter is $24.99/mo.

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