Duluth International in October 2025

91.4%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 October 2025, reporting carriers scheduled 187 domestic departures from Duluth International (DLH). 91.4% left less than 15 minutes late and 86.6% reached their destination on time; 0.0% were cancelled.

Nationally that month, 80.0% of flights departed on time and 79.1% arrived on time, so DLH departures were 11.4 points above the national departure figure.

A year earlier, in October 2024, the airport had 230 departures with 93.5% leaving on time: a change of −2.1 points, with flights down 19%.

Flights arriving at DLH that month were on time 82.2% of the time (185 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 62%, extreme weather 22% and national aviation system 9%.

On time 86.6%
Arrived 15+ minutes late 13.4%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from DLH in October 2025, judged by arrival at the destination.

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

Measure	Oct 2025	Oct 2024	DLH, 12 months to Jul 2026	All reported flights, Oct 2025
Departed on time	91.4%	93.5%	76.9%	80.0%
Arrived on time	86.6%	93.0%	72.7%	79.1%
Cancelled	0.0%	0.0%	3.6%	0.5%
Average departure delay (late minutes only)	9.7 min	4.2 min	24.5 min	13.9 min
Scheduled departures a day	6	8	7	20,195
Scheduled departures	187	230	2,429	605,844

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	187	100%	86.6%	2.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DLH–ORD	Duluth to Chicago	115	82.6%	2.1 min	0.0%
DLH–MSP	Duluth to Minneapolis	72	93.1%	2.2 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), October 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2025	Minutes
Air carrier	61.6%	34.0%	1,219
Late-arriving aircraft	7.7%	39.7%	153
National Aviation System	8.7%	22.9%	172
Extreme weather	22.0%	3.3%	436
Security	0.0%	0.1%	0

1,980 delay minutes on 25 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 DLH on time in October 2025?

91.4% of 187 scheduled domestic departures left less than 15 minutes late, and 86.6% reached their destination on time. The national figures that month were 80.0% and 79.1%.

How does that compare with a year earlier?

In October 2024, 93.5% of 230 departures left on time and 0.0% were cancelled, against 91.4% and 0.0% in October 2025.

Provenance

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