Appleton International in May 2025

86.0%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 May 2025, reporting carriers scheduled 662 domestic departures from Appleton International (ATW). 86.0% left less than 15 minutes late and 83.2% reached their destination on time; 0.2% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so ATW departures were 9.3 points above the national departure figure.

A year earlier, in May 2024, the airport had 532 departures with 80.6% leaving on time: a change of +5.4 points, with flights up 24%.

Flights arriving at ATW that month were on time 78.9% of the time (663 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 63%, national aviation system 23% and late-arriving aircraft 11%.

On time 83.2%
Arrived 15+ minutes late 16.3%
Cancelled 0.2%
Diverted 0.3%

Every scheduled departure from ATW in May 2025, judged by arrival at the destination.

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

Measure	May 2025	May 2024	ATW, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	86.0%	80.6%	78.0%	76.7%
Arrived on time	83.2%	78.6%	75.6%	75.4%
Cancelled	0.2%	1.1%	2.7%	1.0%
Average departure delay (late minutes only)	17.5 min	20.4 min	21.3 min	17.5 min
Scheduled departures a day	22	18	21	20,188
Scheduled departures	662	532	7,698	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	368	56%	84.5%	7.4 min	0.3%
MQ Envoy Air	155	23%	82.6%	5.8 min	0.0%
G4 Allegiant Air	108	16%	77.8%	22.1 min	0.0%
DL Delta Air Lines	31	5%	90.3%	2.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ATW–ORD	Appleton to Chicago	257	81.7%	11.0 min	0.0%
ATW–DTW	Appleton to Detroit	91	92.3%	0.3 min	0.0%
ATW–MSP	Appleton to Minneapolis	81	82.7%	2.6 min	0.0%
ATW–DEN	Appleton to Denver	34	64.7%	13.8 min	2.9%
ATW–ATL	Appleton to Atlanta	31	90.3%	2.7 min	0.0%
ATW–CLT	Appleton to Charlotte	31	90.3%	-1.8 min	0.0%
ATW–DFW	Appleton to Dallas/Fort Worth	31	87.1%	13.6 min	0.0%
ATW–SFB	Appleton to Sanford	18	77.8%	24.8 min	0.0%
ATW–AZA	Appleton to Phoenix	17	88.2%	21.1 min	0.0%
ATW–LAS	Appleton to Las Vegas	15	86.7%	45.9 min	0.0%
ATW–PGD	Appleton to Punta Gorda	13	76.9%	54.5 min	0.0%
ATW–PIE	Appleton to St. Petersburg	13	84.6%	-8.6 min	0.0%

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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	62.7%	29.3%	7,485
Late-arriving aircraft	10.9%	37.8%	1,304
National Aviation System	23.2%	25.9%	2,763
Extreme weather	3.1%	6.9%	373
Security	0.1%	0.1%	8

11,933 delay minutes on 108 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 ATW on time in May 2025?

86.0% of 662 scheduled domestic departures left less than 15 minutes late, and 83.2% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 80.6% of 532 departures left on time and 1.1% were cancelled, against 86.0% and 0.2% in May 2025.

Provenance

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