Logan International in October 2025

70.7%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 October 2025, reporting carriers scheduled 12,647 domestic departures from Logan International (BOS). 70.7% left less than 15 minutes late and 72.6% reached their destination on time; 1.5% were cancelled.

Nationally that month, 80.0% of flights departed on time and 79.1% arrived on time, so BOS departures were 9.3 points below the national departure figure.

A year earlier, in October 2024, the airport had 13,035 departures with 86.0% leaving on time: a change of −15.3 points, with flights down 3%.

Flights arriving at BOS that month were on time 63.4% of the time (12,637 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 59%, air carrier 24% and national aviation system 16%.

On time 72.6%
Arrived 15+ minutes late 25.6%
Cancelled 1.5%
Diverted 0.2%

Every scheduled departure from BOS in October 2025, judged by arrival at the destination.

October 2025 against a year earlier, the airport's year and the nation

Measure	Oct 2025	Oct 2024	BOS, 12 months to Jul 2026	All reported flights, Oct 2025
Departed on time	70.7%	86.0%	74.4%	80.0%
Arrived on time	72.6%	85.8%	73.3%	79.1%
Cancelled	1.5%	0.8%	2.8%	0.5%
Average departure delay (late minutes only)	22.4 min	8.8 min	18.3 min	13.9 min
Scheduled departures a day	422	435	393	20,195
Scheduled departures	12,647	13,035	143,447	605,844

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
B6 JetBlue Airways	3,354	27%	76.1%	1.5 min	1.4%
YX Republic Airline	2,825	22%	70.5%	9.9 min	3.0%
DL Delta Air Lines	2,280	18%	73.2%	12.2 min	0.9%
AA American Airlines	1,522	12%	72.0%	15.6 min	0.9%
UA United Airlines	1,153	9%	72.5%	11.6 min	0.8%
WN Southwest Airlines	720	6%	62.6%	19.4 min	0.8%
AS Alaska Airlines	237	2%	72.6%	7.2 min	3.0%
NK Spirit Airlines	223	2%	73.5%	6.3 min	2.7%
MQ Envoy Air	185	1%	73.0%	11.4 min	0.0%
F9 Frontier Airlines	71	1%	78.9%	1.5 min	0.0%
G4 Allegiant Air	60	0%	85.0%	-4.4 min	0.0%
HA Hawaiian Airlines	17	0%	76.5%	1.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BOS–DCA	Boston to Washington	773	70.2%	6.7 min	2.3%
BOS–ORD	Boston to Chicago	695	63.3%	19.2 min	0.9%
BOS–LGA	Boston to New York	674	68.0%	17.9 min	4.5%
BOS–JFK	Boston to New York	552	75.7%	5.7 min	3.3%
BOS–PHL	Boston to Philadelphia	462	66.7%	22.1 min	1.1%
BOS–SFO	Boston to San Francisco	429	74.6%	8.9 min	0.7%
BOS–ATL	Boston to Atlanta	425	81.2%	8.1 min	0.7%
BOS–LAX	Boston to Los Angeles	402	70.1%	23.8 min	0.7%
BOS–CLT	Boston to Charlotte	370	75.9%	6.3 min	1.1%
BOS–DFW	Boston to Dallas/Fort Worth	352	74.7%	8.7 min	1.1%
BOS–DEN	Boston to Denver	342	76.9%	4.3 min	0.3%
BOS–BWI	Boston to Baltimore	337	68.8%	15.6 min	0.9%

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), October 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2025	Minutes
Air carrier	23.7%	34.0%	57,320
Late-arriving aircraft	58.9%	39.7%	142,389
National Aviation System	16.0%	22.9%	38,604
Extreme weather	1.3%	3.3%	3,202
Security	0.1%	0.1%	151

241,666 delay minutes on 3,242 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 BOS on time in October 2025?

70.7% of 12,647 scheduled domestic departures left less than 15 minutes late, and 72.6% reached their destination on time. The national figures that month were 80.0% and 79.1%.

How does that compare with a year earlier?

In October 2024, 86.0% of 13,035 departures left on time and 0.8% were cancelled, against 70.7% and 1.5% in October 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 2025; 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.