Patrick Leahy Burlington International in July 2026

66.2%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 July 2026, reporting carriers scheduled 594 domestic departures from Patrick Leahy Burlington International (BTV). 66.2% left less than 15 minutes late and 65.8% reached their destination on time; 4.7% were cancelled.

Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so BTV departures were 2.6 points below the national departure figure.

A year earlier, in July 2025, the airport had 648 departures with 63.3% leaving on time: a change of +2.9 points, with flights down 8%.

Flights arriving at BTV that month were on time 58.3% of the time (595 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 38%, air carrier 30% and national aviation system 17%.

On time 65.8%
Arrived 15+ minutes late 29.1%
Cancelled 4.7%
Diverted 0.3%

Every scheduled departure from BTV in July 2026, judged by arrival at the destination.

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

Measure	Jul 2026	Jul 2025	BTV, 12 months to Jul 2026	All reported flights, Jul 2026
Departed on time	66.2%	63.3%	76.9%	68.8%
Arrived on time	65.8%	57.7%	71.8%	69.4%
Cancelled	4.7%	9.4%	2.9%	2.6%
Average departure delay (late minutes only)	31.8 min	49.2 min	24.0 min	24.1 min
Scheduled departures a day	20	22	17	21,066
Scheduled departures	594	648	6,084	631,970

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	247	42%	56.7%	31.3 min	5.7%
YX Republic Airline	94	16%	77.7%	-1.6 min	7.4%
UA United Airlines	93	16%	73.1%	20.6 min	1.1%
OO SkyWest Airlines	92	15%	65.2%	24.0 min	3.3%
DL Delta Air Lines	39	7%	87.2%	-6.9 min	2.6%
AA American Airlines	26	4%	57.7%	34.0 min	3.8%
MQ Envoy Air	3	1%	33.3%	25.5 min	33.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BTV–ORD	Burlington to Chicago	124	66.9%	24.7 min	2.4%
BTV–PHL	Burlington to Philadelphia	114	57.9%	26.0 min	6.1%
BTV–DCA	Burlington to Washington	91	49.5%	42.5 min	9.9%
BTV–CLT	Burlington to Charlotte	75	62.7%	26.3 min	0.0%
BTV–EWR	Burlington to Newark	45	68.9%	0.3 min	13.3%
BTV–IAD	Burlington to Washington	45	88.9%	-4.5 min	2.2%
BTV–ATL	Burlington to Atlanta	39	87.2%	-6.9 min	2.6%
BTV–DEN	Burlington to Denver	31	77.4%	22.6 min	0.0%
BTV–DTW	Burlington to Detroit	30	70.0%	12.0 min	3.3%

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), July 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2026	Minutes
Air carrier	29.5%	31.7%	4,883
Late-arriving aircraft	38.4%	41.8%	6,357
National Aviation System	17.2%	19.9%	2,854
Extreme weather	14.9%	6.5%	2,465
Security	0.0%	0.1%	4

16,563 delay minutes on 173 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 BTV on time in July 2026?

66.2% of 594 scheduled domestic departures left less than 15 minutes late, and 65.8% reached their destination on time. The national figures that month were 68.8% and 69.4%.

How does that compare with a year earlier?

In July 2025, 63.3% of 648 departures left on time and 9.4% were cancelled, against 66.2% and 4.7% in July 2026.

Provenance

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