Elmira/Corning Regional in August 2025

83.5%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 August 2025, reporting carriers scheduled 103 domestic departures from Elmira/Corning Regional (ELM). 83.5% left less than 15 minutes late and 82.5% reached their destination on time; 0.0% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so ELM departures were 6.7 points above the national departure figure.

A year earlier, in August 2024, the airport had 85 departures with 83.5% leaving on time: a change of 0.0 points, with flights up 21%.

Flights arriving at ELM that month were on time 81.6% of the time (103 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 82%, national aviation system 9% and late-arriving aircraft 7%.

On time 82.5%
Arrived 15+ minutes late 17.5%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from ELM in August 2025, judged by arrival at the destination.

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

Measure	Aug 2025	Aug 2024	ELM, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	83.5%	83.5%	78.4%	76.8%
Arrived on time	82.5%	83.5%	78.4%	76.3%
Cancelled	0.0%	0.0%	1.2%	1.1%
Average departure delay (late minutes only)	12.2 min	12.5 min	19.8 min	17.6 min
Scheduled departures a day	3	3	4	20,079
Scheduled departures	103	85	1,290	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	82	80%	86.6%	-0.1 min	0.0%
G4 Allegiant Air	21	20%	66.7%	8.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ELM–DTW	Elmira/Corning to Detroit	82	86.6%	-0.1 min	0.0%
ELM–SFB	Elmira/Corning to Sanford	12	66.7%	7.4 min	0.0%
ELM–PIE	Elmira/Corning to St. Petersburg	9	66.7%	10.6 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), August 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	82.0%	33.1%	971
Late-arriving aircraft	6.5%	40.5%	77
National Aviation System	9.0%	19.2%	107
Extreme weather	2.4%	7.0%	29
Security	0.0%	0.1%	0

1,184 delay minutes on 18 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 ELM on time in August 2025?

83.5% of 103 scheduled domestic departures left less than 15 minutes late, and 82.5% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 83.5% of 85 departures left on time and 0.0% were cancelled, against 83.5% and 0.0% in August 2025.

Provenance

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