Baltimore/Washington International Thurgood Marshall in November 2023

78.9%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In November 2023, reporting carriers scheduled 8,293 domestic departures from Baltimore/Washington International Thurgood Marshall (BWI). 78.9% left less than 15 minutes late and 82.7% reached their destination on time; 0.1% were cancelled.

Nationally that month, 86.0% of flights departed on time and 86.2% arrived on time, so BWI departures were 7.1 points below the national departure figure.

Flights arriving at BWI that month were on time 86.9% of the time (8,292 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 47%, late-arriving aircraft 38% and national aviation system 15%.

On time 82.7%
Arrived 15+ minutes late 17.2%
Cancelled 0.1%
Diverted 0.1%

Every scheduled departure from BWI in November 2023, judged by arrival at the destination.

November 2023 against a year earlier, the airport's year and the nation

Measure	Nov 2023	Year earlier	BWI, 12 months to Jul 2026	All reported flights, Nov 2023
Departed on time	78.9%	—	71.7%	86.0%
Arrived on time	82.7%	—	76.4%	86.2%
Cancelled	0.1%	—	1.8%	0.1%
Average departure delay (late minutes only)	10.6 min	—	16.5 min	9.4 min
Scheduled departures a day	276	—	259	18,793
Scheduled departures	8,293	—	94,429	563,777

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	6,210	75%	82.2%	0.5 min	0.1%
NK Spirit Airlines	550	7%	77.3%	5.8 min	0.4%
DL Delta Air Lines	411	5%	89.1%	-3.3 min	0.0%
UA United Airlines	307	4%	91.2%	-10.7 min	0.0%
AA American Airlines	265	3%	86.8%	-4.6 min	0.0%
F9 Frontier Airlines	229	3%	74.2%	9.4 min	0.4%
9E Endeavor Air	90	1%	86.7%	-5.9 min	0.0%
YX Republic Airline	69	1%	92.8%	-5.0 min	0.0%
B6 JetBlue Airways	58	1%	93.1%	-8.3 min	0.0%
MQ Envoy Air	55	1%	81.8%	-7.9 min	0.0%
AS Alaska Airlines	30	0%	70.0%	5.8 min	0.0%
G4 Allegiant Air	19	0%	94.7%	-8.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BWI–ATL	Baltimore to Atlanta	548	84.3%	-0.1 min	0.4%
BWI–MCO	Baltimore to Orlando	492	80.9%	0.3 min	0.4%
BWI–BOS	Baltimore to Boston	353	82.2%	1.5 min	0.0%
BWI–FLL	Baltimore to Fort Lauderdale	348	81.0%	0.0 min	0.3%
BWI–TPA	Baltimore to Tampa	289	81.0%	2.5 min	0.0%
BWI–DEN	Baltimore to Denver	274	83.9%	-5.3 min	0.0%
BWI–ORD	Baltimore to Chicago	251	84.9%	-4.5 min	0.4%
BWI–CLT	Baltimore to Charlotte	233	83.7%	-4.1 min	0.0%
BWI–MIA	Baltimore to Miami	207	77.3%	4.7 min	0.0%
BWI–BNA	Baltimore to Nashville	174	82.2%	0.2 min	0.0%
BWI–PVD	Baltimore to Providence	165	81.2%	3.3 min	0.0%
BWI–BUF	Baltimore to Buffalo	161	77.6%	6.2 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), November 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Nov 2023	Minutes
Air carrier	47.1%	42.5%	28,617
Late-arriving aircraft	37.7%	37.3%	22,927
National Aviation System	14.5%	16.2%	8,805
Extreme weather	0.1%	3.7%	73
Security	0.5%	0.3%	318

60,740 delay minutes on 1,425 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left BWI on time in November 2023?

78.9% of 8,293 scheduled domestic departures left less than 15 minutes late, and 82.7% reached their destination on time. The national figures that month were 86.0% and 86.2%.

How does that compare with a year earlier?

November 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for November 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BWI · methodology · corrections.