Patrick Leahy Burlington International in March 2026

78.8%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 438 domestic departures from Patrick Leahy Burlington International (BTV). 78.8% left less than 15 minutes late and 71.2% reached their destination on time; 4.3% were cancelled.

Nationally that month, 72.8% of flights departed on time and 73.2% arrived on time, so BTV departures were 6.0 points above the national departure figure.

A year earlier, in March 2025, the airport had 562 departures with 84.9% leaving on time: a change of −6.1 points, with flights down 22%.

Flights arriving at BTV that month were on time 66.4% of the time (435 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 36%, national aviation system 28% and late-arriving aircraft 26%.

On time 71.2%
Arrived 15+ minutes late 24.4%
Cancelled 4.3%
Diverted 0.0%

Every scheduled departure from BTV 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	BTV, 12 months to Jul 2026	All reported flights, Mar 2026
Departed on time	78.8%	84.9%	76.9%	72.8%
Arrived on time	71.2%	80.2%	71.8%	73.2%
Cancelled	4.3%	1.6%	2.9%	2.9%
Average departure delay (late minutes only)	20.7 min	17.3 min	24.0 min	20.3 min
Scheduled departures a day	15	19	17	20,403
Scheduled departures	438	562	6,084	612,102

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	187	43%	70.6%	17.5 min	6.4%
UA United Airlines	99	23%	62.6%	20.4 min	2.0%
OO SkyWest Airlines	62	14%	64.5%	27.4 min	4.8%
YX Republic Airline	37	8%	86.5%	-6.6 min	2.7%
DL Delta Air Lines	31	7%	87.1%	-7.8 min	3.2%
AA American Airlines	22	5%	86.4%	-6.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BTV–DCA	Burlington to Washington	93	64.5%	34.4 min	5.4%
BTV–PHL	Burlington to Philadelphia	91	73.6%	6.0 min	6.6%
BTV–DTW	Burlington to Detroit	62	64.5%	27.4 min	4.8%
BTV–ORD	Burlington to Chicago	62	51.6%	34.5 min	1.6%
BTV–IAD	Burlington to Washington	33	81.8%	-2.1 min	3.0%
BTV–ATL	Burlington to Atlanta	31	87.1%	-7.8 min	3.2%
BTV–CLT	Burlington to Charlotte	31	90.3%	-12.9 min	6.5%
BTV–EWR	Burlington to Newark	26	92.3%	-20.0 min	0.0%
BTV–LGA	Burlington to New York	9	77.8%	-1.2 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), March 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2026	Minutes
Air carrier	36.3%	33.5%	3,612
Late-arriving aircraft	26.2%	39.3%	2,601
National Aviation System	27.5%	21.0%	2,729
Extreme weather	10.0%	5.9%	993
Security	0.0%	0.2%	4

9,939 delay minutes on 107 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 March 2026?

78.8% of 438 scheduled domestic departures left less than 15 minutes late, and 71.2% 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, 84.9% of 562 departures left on time and 1.6% were cancelled, against 78.8% and 4.3% 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 BTV · methodology · corrections.