Elmira/Corning Regional in April 2025

78.6%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 April 2025, reporting carriers scheduled 112 domestic departures from Elmira/Corning Regional (ELM). 78.6% left less than 15 minutes late and 83.0% reached their destination on time; 0.0% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so ELM departures were 2.0 points below the national departure figure.

A year earlier, in April 2024, the airport had 85 departures with 88.2% leaving on time: a change of −9.6 points, with flights up 32%.

Flights arriving at ELM that month were on time 86.6% of the time (112 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 64%, late-arriving aircraft 20% and extreme weather 11%.

On time 83.0%
Arrived 15+ minutes late 17.0%
Cancelled 0.0%
Diverted 0.0%

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

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

Measure	Apr 2025	Apr 2024	ELM, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	78.6%	88.2%	78.4%	80.6%
Arrived on time	83.0%	89.4%	78.4%	79.5%
Cancelled	0.0%	0.0%	1.2%	0.8%
Average departure delay (late minutes only)	15.9 min	18.4 min	19.8 min	14.1 min
Scheduled departures a day	4	3	4	19,465
Scheduled departures	112	85	1,290	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	60	54%	83.3%	7.3 min	0.0%
G4 Allegiant Air	52	46%	82.7%	0.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ELM–DTW	Elmira/Corning to Detroit	60	83.3%	7.3 min	0.0%
ELM–SFB	Elmira/Corning to Sanford	21	76.2%	6.3 min	0.0%
ELM–PIE	Elmira/Corning to St. Petersburg	15	73.3%	13.0 min	0.0%
ELM–PGD	Elmira/Corning to Punta Gorda	8	100.0%	-24.7 min	0.0%
ELM–SRQ	Elmira/Corning to Sarasota/Bradenton	8	100.0%	-14.2 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), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	63.7%	32.7%	1,007
Late-arriving aircraft	19.5%	39.4%	308
National Aviation System	5.5%	22.2%	87
Extreme weather	11.3%	5.5%	179
Security	0.0%	0.2%	0

1,581 delay minutes on 19 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 April 2025?

78.6% of 112 scheduled domestic departures left less than 15 minutes late, and 83.0% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 88.2% of 85 departures left on time and 0.0% were cancelled, against 78.6% and 0.0% in April 2025.

Provenance

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