On-Time Report

Airports › Boston (BOS) › August 2024

Airport month · August 2024

Logan International in August 2024

70.5%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 13,215 domestic departures from Logan International (BOS). 70.5% left less than 15 minutes late and 69.9% reached their destination on time; 3.7% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so BOS departures were 4.9 points below the national departure figure.

A year earlier, in August 2023, the airport had 12,389 departures with 72.8% leaving on time: a change of −2.3 points, with flights up 7%.

Flights arriving at BOS that month were on time 67.0% of the time (13,206 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 38%, air carrier 33% and national aviation system 27%.

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

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

MeasureAug 2024Aug 2023BOS, 12 months to Jul 2026All reported flights, Aug 2024
Departed on time70.5%72.8%74.4%75.4%
Arrived on time69.9%71.5%73.3%74.7%
Cancelled3.7%1.4%2.8%2.1%
Average departure delay (late minutes only)22.7 min21.1 min18.3 min18.4 min
Scheduled departures a day44141339320,634
Scheduled departures13,21512,389143,447619,025

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
B6 JetBlue Airways3,59627%62.0%23.8 min3.6%
YX Republic Airline2,37218%75.0%5.2 min6.5%
DL Delta Air Lines2,29017%76.1%7.4 min0.9%
AA American Airlines1,64712%71.4%12.3 min3.8%
UA United Airlines1,1479%73.4%10.3 min3.4%
NK Spirit Airlines7926%59.7%24.1 min6.8%
WN Southwest Airlines6445%72.7%16.6 min1.9%
AS Alaska Airlines2812%67.6%9.3 min1.4%
F9 Frontier Airlines1951%73.3%6.7 min2.6%
MQ Envoy Air1811%78.5%4.1 min2.2%
G4 Allegiant Air510%84.3%-10.0 min3.9%
HA Hawaiian Airlines190%73.7%10.5 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
BOS–DCABoston to Washington81466.3%22.1 min6.1%
BOS–ORDBoston to Chicago70369.4%14.1 min2.4%
BOS–LGABoston to New York65372.3%7.5 min8.6%
BOS–PHLBoston to Philadelphia50569.1%18.7 min5.7%
BOS–CLTBoston to Charlotte48371.0%9.3 min5.0%
BOS–LAXBoston to Los Angeles46775.6%7.0 min0.6%
BOS–ATLBoston to Atlanta46471.1%9.8 min1.5%
BOS–JFKBoston to New York46169.0%12.2 min6.9%
BOS–SFOBoston to San Francisco42767.9%11.1 min0.9%
BOS–DENBoston to Denver41171.0%12.1 min0.5%
BOS–EWRBoston to Newark39867.6%11.7 min10.3%
BOS–MCOBoston to Orlando38955.0%31.5 min3.9%

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 carrier32.7%33.8%91,160
Late-arriving aircraft37.7%39.8%105,159
National Aviation System26.9%20.4%75,028
Extreme weather2.5%5.9%7,060
Security0.1%0.1%279
278,686 delay minutes on 3,446 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 BOS on time in August 2024?

70.5% of 13,215 scheduled domestic departures left less than 15 minutes late, and 69.9% 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, 72.8% of 12,389 departures left on time and 1.4% were cancelled, against 70.5% and 3.7% 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 BOS · methodology · corrections.