Logan International in March 2026

74.2%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 March 2026, reporting carriers scheduled 12,299 domestic departures from Logan International (BOS). 74.2% left less than 15 minutes late and 71.8% reached their destination on time; 2.7% were cancelled.

Nationally that month, 72.8% of flights departed on time and 73.2% arrived on time, so BOS departures were 1.4 points above the national departure figure.

A year earlier, in March 2025, the airport had 12,361 departures with 81.1% leaving on time: a change of −6.9 points, with flights down 1%.

Flights arriving at BOS that month were on time 71.2% of the time (12,294 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 39%, national aviation system 31% and air carrier 28%.

On time 71.8%
Arrived 15+ minutes late 25.2%
Cancelled 2.7%
Diverted 0.3%

Every scheduled departure from BOS in March 2026, judged by arrival at the destination.

March 2026 against a year earlier, the airport's year and the nation

Measure	Mar 2026	Mar 2025	BOS, 12 months to Jul 2026	All reported flights, Mar 2026
Departed on time	74.2%	81.1%	74.4%	72.8%
Arrived on time	71.8%	80.9%	73.3%	73.2%
Cancelled	2.7%	0.6%	2.8%	2.9%
Average departure delay (late minutes only)	18.0 min	14.9 min	18.3 min	20.3 min
Scheduled departures a day	410	412	393	20,403
Scheduled departures	12,299	12,361	143,447	612,102

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
B6 JetBlue Airways	3,445	28%	68.1%	11.4 min	1.6%
YX Republic Airline	3,104	25%	69.7%	9.7 min	4.4%
DL Delta Air Lines	2,133	17%	76.3%	4.9 min	2.6%
AA American Airlines	1,339	11%	80.6%	2.3 min	2.3%
UA United Airlines	1,014	8%	81.2%	4.1 min	1.4%
WN Southwest Airlines	533	4%	69.4%	9.1 min	1.1%
NK Spirit Airlines	274	2%	40.1%	39.1 min	10.9%
MQ Envoy Air	220	2%	79.1%	3.1 min	0.5%
AS Alaska Airlines	156	1%	51.3%	21.7 min	0.0%
F9 Frontier Airlines	54	0%	63.0%	13.0 min	0.0%
G4 Allegiant Air	27	0%	96.3%	34.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BOS–DCA	Boston to Washington	809	69.1%	13.5 min	2.7%
BOS–LGA	Boston to New York	616	58.6%	18.6 min	11.2%
BOS–ORD	Boston to Chicago	597	65.7%	23.6 min	6.4%
BOS–JFK	Boston to New York	517	67.7%	11.5 min	2.1%
BOS–MCO	Boston to Orlando	488	65.2%	16.0 min	3.9%
BOS–PHL	Boston to Philadelphia	429	72.0%	12.4 min	1.2%
BOS–ATL	Boston to Atlanta	403	78.4%	1.8 min	1.7%
BOS–FLL	Boston to Fort Lauderdale	390	64.4%	13.5 min	4.6%
BOS–LAX	Boston to Los Angeles	390	80.8%	2.7 min	0.5%
BOS–EWR	Boston to Newark	352	76.4%	4.9 min	2.3%
BOS–CLT	Boston to Charlotte	327	82.9%	-5.7 min	1.8%
BOS–RSW	Boston to Fort Myers	326	57.7%	18.8 min	3.4%

By scheduled departure hour

100

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

Share of departures that left less than 15 minutes late, by scheduled hour (local time), March 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2026	Minutes
Air carrier	28.4%	33.5%	60,991
Late-arriving aircraft	38.6%	39.3%	82,692
National Aviation System	30.9%	21.0%	66,198
Extreme weather	1.9%	5.9%	4,176
Security	0.2%	0.2%	411

214,468 delay minutes on 3,095 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 March 2026?

74.2% of 12,299 scheduled domestic departures left less than 15 minutes late, and 71.8% reached their destination on time. The national figures that month were 72.8% and 73.2%.

How does that compare with a year earlier?

In March 2025, 81.1% of 12,361 departures left on time and 0.6% were cancelled, against 74.2% and 2.7% in March 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2026; 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.