On-Time Report

Airports › Baltimore (BWI) › August 2024

Airport month · August 2024

Baltimore/Washington International Thurgood Marshall in August 2024

62.4%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 August 2024, reporting carriers scheduled 8,940 domestic departures from Baltimore/Washington International Thurgood Marshall (BWI). 62.4% left less than 15 minutes late and 66.3% reached their destination on time; 2.6% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so BWI departures were 13.0 points below the national departure figure.

A year earlier, in August 2023, the airport had 8,507 departures with 64.0% leaving on time: a change of −1.6 points, with flights up 5%.

Flights arriving at BWI that month were on time 72.0% of the time (8,946 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 39%, air carrier 33% and national aviation system 24%.

Every scheduled departure from BWI in August 2024, judged by arrival at the destination.

August 2024 against a year earlier, the airport's year and the nation

MeasureAug 2024Aug 2023BWI, 12 months to Jul 2026All reported flights, Aug 2024
Departed on time62.4%64.0%71.7%75.4%
Arrived on time66.3%68.2%76.4%74.7%
Cancelled2.6%1.8%1.8%2.1%
Average departure delay (late minutes only)23.8 min19.9 min16.5 min18.4 min
Scheduled departures a day29828425920,634
Scheduled departures8,9408,50794,429619,025

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
WN Southwest Airlines6,45872%65.0%17.0 min2.3%
NK Spirit Airlines7629%65.4%20.9 min3.3%
DL Delta Air Lines4715%79.8%11.3 min0.4%
AA American Airlines3664%76.8%19.5 min3.0%
UA United Airlines3644%73.1%9.5 min1.9%
F9 Frontier Airlines2663%51.5%36.7 min6.4%
YX Republic Airline791%75.9%8.6 min8.9%
9E Endeavor Air621%58.1%19.0 min19.4%
AS Alaska Airlines621%69.4%21.3 min0.0%
MQ Envoy Air370%56.8%23.3 min2.7%
G4 Allegiant Air90%66.7%5.5 min11.1%
OH PSA Airlines40%75.0%-0.7 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
BWI–ATLBaltimore to Atlanta53970.7%17.9 min0.9%
BWI–MCOBaltimore to Orlando45064.2%19.6 min3.8%
BWI–BOSBaltimore to Boston38567.5%20.2 min4.9%
BWI–FLLBaltimore to Fort Lauderdale31461.1%19.4 min5.4%
BWI–CLTBaltimore to Charlotte31368.4%26.2 min2.9%
BWI–DENBaltimore to Denver28263.8%18.7 min1.8%
BWI–TPABaltimore to Tampa26766.3%11.4 min6.0%
BWI–ORDBaltimore to Chicago22374.4%6.1 min1.8%
BWI–MIABaltimore to Miami21353.5%21.5 min7.5%
BWI–LASBaltimore to Las Vegas20671.4%15.7 min1.9%
BWI–LAXBaltimore to Los Angeles19466.5%14.3 min1.5%
BWI–DTWBaltimore to Detroit18772.2%9.2 min2.7%

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), August 2024.

Delay causes

BTS cause categoryShare of delay minutesNational, Aug 2024Minutes
Air carrier33.2%33.8%63,195
Late-arriving aircraft38.8%39.8%73,848
National Aviation System23.8%20.4%45,317
Extreme weather4.3%5.9%8,128
Security0.0%0.1%24
190,512 delay minutes on 2,763 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← July 2024September 2024 →

Questions and answers

How many flights left BWI on time in August 2024?

62.4% of 8,940 scheduled domestic departures left less than 15 minutes late, and 66.3% reached their destination on time. The national figures that month were 75.4% and 74.7%.

How does that compare with a year earlier?

In August 2023, 64.0% of 8,507 departures left on time and 1.8% were cancelled, against 62.4% and 2.6% in August 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2024; 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.