Manchester Boston Regional in May 2025

79.1%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 May 2025, reporting carriers scheduled 570 domestic departures from Manchester Boston Regional (MHT). 79.1% left less than 15 minutes late and 74.9% reached their destination on time; 1.2% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so MHT departures were 2.4 points above the national departure figure.

A year earlier, in May 2024, the airport had 477 departures with 78.0% leaving on time: a change of +1.1 points, with flights up 19%.

Flights arriving at MHT that month were on time 70.8% of the time (572 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 36%, late-arriving aircraft 35% and national aviation system 26%.

On time 74.9%
Arrived 15+ minutes late 23.2%
Cancelled 1.2%
Diverted 0.7%

Every scheduled departure from MHT in May 2025, judged by arrival at the destination.

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

Measure	May 2025	May 2024	MHT, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	79.1%	78.0%	80.2%	76.7%
Arrived on time	74.9%	77.6%	79.0%	75.4%
Cancelled	1.2%	0.4%	2.3%	1.0%
Average departure delay (late minutes only)	17.1 min	19.1 min	15.7 min	17.5 min
Scheduled departures a day	19	16	16	20,188
Scheduled departures	570	477	5,994	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	246	43%	79.3%	7.4 min	0.0%
OH PSA Airlines	235	41%	71.5%	19.4 min	3.0%
MQ Envoy Air	53	9%	81.1%	2.4 min	0.0%
B6 JetBlue Airways	36	6%	58.3%	16.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MHT–BWI	Manchester to Baltimore	136	84.6%	5.0 min	0.0%
MHT–DCA	Manchester to Washington	115	70.4%	10.0 min	4.3%
MHT–MCO	Manchester to Orlando	97	67.0%	10.2 min	0.0%
MHT–CLT	Manchester to Charlotte	93	71.0%	21.1 min	1.1%
MHT–ORD	Manchester to Chicago	53	81.1%	2.4 min	0.0%
MHT–MDW	Manchester to Chicago	31	83.9%	4.9 min	0.0%
MHT–PHL	Manchester to Philadelphia	27	77.8%	53.2 min	3.7%
MHT–TPA	Manchester to Tampa	13	53.8%	38.6 min	0.0%
MHT–FLL	Manchester to Fort Lauderdale	3	33.3%	47.7 min	0.0%
MHT–RSW	Manchester to Fort Myers	2	100.0%	-17.5 min	0.0%

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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	35.7%	29.3%	3,685
Late-arriving aircraft	35.4%	37.8%	3,654
National Aviation System	25.6%	25.9%	2,648
Extreme weather	2.7%	6.9%	276
Security	0.6%	0.1%	67

10,330 delay minutes on 132 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 MHT on time in May 2025?

79.1% of 570 scheduled domestic departures left less than 15 minutes late, and 74.9% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 78.0% of 477 departures left on time and 0.4% were cancelled, against 79.1% and 1.2% in May 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for MHT · methodology · corrections.