Duluth International in December 2024

69.4%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 December 2024, reporting carriers scheduled 170 domestic departures from Duluth International (DLH). 69.4% left less than 15 minutes late and 71.2% reached their destination on time; 3.5% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so DLH departures were 8.4 points below the national departure figure.

A year earlier, in December 2023, the airport had 152 departures with 77.0% leaving on time: a change of −7.6 points, with flights up 12%.

Flights arriving at DLH that month were on time 71.2% of the time (170 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 49%, extreme weather 34% and national aviation system 7%.

On time 71.2%
Arrived 15+ minutes late 25.3%
Cancelled 3.5%
Diverted 0.0%

Every scheduled departure from DLH in December 2024, judged by arrival at the destination.

December 2024 against a year earlier, the airport's year and the nation

Measure	Dec 2024	Dec 2023	DLH, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	69.4%	77.0%	76.9%	77.8%
Arrived on time	71.2%	78.9%	72.7%	78.1%
Cancelled	3.5%	5.3%	3.6%	0.7%
Average departure delay (late minutes only)	27.7 min	25.3 min	24.5 min	16.6 min
Scheduled departures a day	6	5	7	19,686
Scheduled departures	170	152	2,429	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	141	83%	67.4%	24.3 min	4.3%
YX Republic Airline	29	17%	89.7%	-9.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DLH–MSP	Duluth to Minneapolis	106	67.9%	25.0 min	3.8%
DLH–ORD	Duluth to Chicago	64	76.6%	7.3 min	3.1%

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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	49.2%	34.3%	2,192
Late-arriving aircraft	4.6%	40.2%	204
National Aviation System	7.4%	17.8%	331
Extreme weather	33.6%	7.5%	1,497
Security	5.2%	0.2%	233

4,457 delay minutes on 43 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 December 2024?

69.4% of 170 scheduled domestic departures left less than 15 minutes late, and 71.2% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 77.0% of 152 departures left on time and 5.3% were cancelled, against 69.4% and 3.5% in December 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2024; 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.