Quad Cities International in May 2026

81.2%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 2026, reporting carriers scheduled 420 domestic departures from Quad Cities International (MLI). 81.2% left less than 15 minutes late and 77.4% reached their destination on time; 1.7% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so MLI departures were 4.1 points above the national departure figure.

A year earlier, in May 2025, the airport had 402 departures with 82.1% leaving on time: a change of −0.9 points, with flights up 4%.

Flights arriving at MLI that month were on time 74.2% of the time (419 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 28% and national aviation system 16%.

On time 77.4%
Arrived 15+ minutes late 20.7%
Cancelled 1.7%
Diverted 0.2%

Every scheduled departure from MLI in May 2026, judged by arrival at the destination.

May 2026 against a year earlier, the airport's year and the nation

Measure	May 2026	May 2025	MLI, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	81.2%	82.1%	77.9%	77.1%
Arrived on time	77.4%	76.1%	74.2%	77.6%
Cancelled	1.7%	1.7%	3.6%	0.9%
Average departure delay (late minutes only)	20.0 min	13.9 min	21.9 min	16.0 min
Scheduled departures a day	14	13	12	20,391
Scheduled departures	420	402	4,301	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	251	60%	76.1%	16.4 min	0.8%
MQ Envoy Air	101	24%	83.2%	-6.4 min	3.0%
G4 Allegiant Air	48	11%	70.8%	17.1 min	0.0%
OH PSA Airlines	20	5%	80.0%	2.6 min	10.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MLI–ORD	Moline to Chicago	248	75.0%	14.2 min	0.8%
MLI–DFW	Moline to Dallas/Fort Worth	93	81.7%	1.9 min	5.4%
MLI–DEN	Moline to Denver	31	93.5%	-5.4 min	0.0%
MLI–AZA	Moline to Phoenix	10	60.0%	46.9 min	0.0%
MLI–LAS	Moline to Las Vegas	9	77.8%	0.0 min	0.0%
MLI–PGD	Moline to Punta Gorda	9	88.9%	6.6 min	0.0%
MLI–PIE	Moline to St. Petersburg	9	77.8%	6.9 min	0.0%
MLI–SFB	Moline to Sanford	9	55.6%	24.9 min	0.0%
MLI–SRQ	Moline to Sarasota/Bradenton	2	50.0%	4.5 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	27.7%	33.0%	2,376
Late-arriving aircraft	45.3%	40.4%	3,884
National Aviation System	16.3%	20.5%	1,401
Extreme weather	10.6%	6.0%	909
Security	0.0%	0.1%	0

8,570 delay minutes on 87 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 May 2026?

81.2% of 420 scheduled domestic departures left less than 15 minutes late, and 77.4% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 82.1% of 402 departures left on time and 1.7% were cancelled, against 81.2% and 1.7% in May 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2026; 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.