Patrick Leahy Burlington International in December 2023

85.0%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 December 2023, reporting carriers scheduled 528 domestic departures from Patrick Leahy Burlington International (BTV). 85.0% left less than 15 minutes late and 82.2% reached their destination on time; 2.7% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so BTV departures were 1.9 points above the national departure figure.

Flights arriving at BTV that month were on time 81.3% of the time (528 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 55%, air carrier 23% and national aviation system 17%.

On time 82.2%
Arrived 15+ minutes late 15.2%
Cancelled 2.7%
Diverted 0.0%

Every scheduled departure from BTV in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	BTV, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	85.0%	—	76.9%	83.1%
Arrived on time	82.2%	—	71.8%	83.8%
Cancelled	2.7%	—	2.9%	0.4%
Average departure delay (late minutes only)	14.6 min	—	24.0 min	11.6 min
Scheduled departures a day	18	—	17	19,013
Scheduled departures	528	—	6,084	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	125	24%	75.2%	9.6 min	2.4%
YX Republic Airline	117	22%	88.9%	-9.1 min	0.0%
9E Endeavor Air	97	18%	89.7%	-16.4 min	4.1%
UA United Airlines	89	17%	83.1%	-2.8 min	3.4%
B6 JetBlue Airways	61	12%	62.3%	26.5 min	6.6%
DL Delta Air Lines	31	6%	96.8%	-5.3 min	0.0%
AA American Airlines	8	2%	87.5%	-4.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BTV–JFK	Burlington to New York	120	76.7%	3.9 min	5.0%
BTV–DCA	Burlington to Washington	82	70.7%	14.0 min	0.0%
BTV–EWR	Burlington to Newark	68	85.3%	-2.0 min	0.0%
BTV–ORD	Burlington to Chicago	62	91.9%	-14.7 min	3.2%
BTV–PHL	Burlington to Philadelphia	55	80.0%	1.6 min	3.6%
BTV–IAD	Burlington to Washington	41	82.9%	-5.7 min	2.4%
BTV–LGA	Burlington to New York	38	86.8%	-12.9 min	5.3%
BTV–ATL	Burlington to Atlanta	31	96.8%	-5.3 min	0.0%
BTV–CLT	Burlington to Charlotte	31	90.3%	-5.0 min	3.2%

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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	23.4%	37.1%	1,744
Late-arriving aircraft	55.2%	38.8%	4,108
National Aviation System	16.5%	17.6%	1,225
Extreme weather	4.9%	6.2%	368
Security	0.0%	0.3%	0

7,445 delay minutes on 80 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 December 2023?

85.0% of 528 scheduled domestic departures left less than 15 minutes late, and 82.2% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2023; 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.