Quad Cities International in August 2025

78.9%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 356 domestic departures from Quad Cities International (MLI). 78.9% left less than 15 minutes late and 75.3% reached their destination on time; 2.5% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so MLI departures were 2.1 points above the national departure figure.

A year earlier, in August 2024, the airport had 354 departures with 80.8% leaving on time: a change of −1.9 points, with flights up 1%.

Flights arriving at MLI that month were on time 74.3% of the time (358 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 48%, late-arriving aircraft 27% and extreme weather 13%.

On time 75.3%
Arrived 15+ minutes late 21.9%
Cancelled 2.5%
Diverted 0.3%

Every scheduled departure from MLI 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	MLI, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	78.9%	80.8%	77.9%	76.8%
Arrived on time	75.3%	78.0%	74.2%	76.3%
Cancelled	2.5%	1.1%	3.6%	1.1%
Average departure delay (late minutes only)	20.6 min	14.3 min	21.9 min	17.6 min
Scheduled departures a day	12	12	12	20,079
Scheduled departures	356	354	4,301	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	147	41%	79.6%	3.8 min	2.0%
OO SkyWest Airlines	103	29%	65.0%	15.4 min	3.9%
OH PSA Airlines	84	24%	78.6%	22.5 min	2.4%
G4 Allegiant Air	22	6%	81.8%	7.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MLI–ORD	Moline to Chicago	157	70.7%	7.7 min	4.5%
MLI–DFW	Moline to Dallas/Fort Worth	88	76.1%	24.5 min	1.1%
MLI–CLT	Moline to Charlotte	58	87.9%	3.3 min	1.7%
MLI–DEN	Moline to Denver	31	67.7%	14.0 min	0.0%
MLI–LAS	Moline to Las Vegas	9	88.9%	-1.4 min	0.0%
MLI–PGD	Moline to Punta Gorda	4	75.0%	51.8 min	0.0%
MLI–AZA	Moline to Phoenix	3	100.0%	-11.3 min	0.0%
MLI–PIE	Moline to St. Petersburg	3	66.7%	1.0 min	0.0%
MLI–SFB	Moline to Sanford	3	66.7%	0.5 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	47.9%	33.1%	3,438
Late-arriving aircraft	27.3%	40.5%	1,956
National Aviation System	11.3%	19.2%	812
Extreme weather	13.4%	7.0%	964
Security	0.1%	0.1%	4

7,174 delay minutes on 78 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 MLI on time in August 2025?

78.9% of 356 scheduled domestic departures left less than 15 minutes late, and 75.3% 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, 80.8% of 354 departures left on time and 1.1% were cancelled, against 78.9% and 2.5% 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 MLI · methodology · corrections.