Duluth International in December 2023

77.0%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 December 2023, reporting carriers scheduled 152 domestic departures from Duluth International (DLH). 77.0% left less than 15 minutes late and 78.9% reached their destination on time; 5.3% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so DLH departures were 6.1 points below the national departure figure.

Flights arriving at DLH that month were on time 79.6% of the time (152 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, extreme weather 39% and air carrier 16%.

On time 78.9%
Arrived 15+ minutes late 15.8%
Cancelled 5.3%
Diverted 0.0%

Every scheduled departure from DLH in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	DLH, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	77.0%	—	76.9%	83.1%
Arrived on time	78.9%	—	72.7%	83.8%
Cancelled	5.3%	—	3.6%	0.4%
Average departure delay (late minutes only)	25.3 min	—	24.5 min	11.6 min
Scheduled departures a day	5	—	7	19,013
Scheduled departures	152	—	2,429	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	128	84%	75.8%	15.6 min	5.5%
DL Delta Air Lines	15	10%	100.0%	-22.0 min	0.0%
9E Endeavor Air	9	6%	88.9%	-23.7 min	11.1%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DLH–MSP	Duluth to Minneapolis	90	81.1%	1.4 min	5.6%
DLH–ORD	Duluth to Chicago	62	75.8%	21.2 min	4.8%

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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	16.1%	37.1%	523
Late-arriving aircraft	40.4%	38.8%	1,315
National Aviation System	4.1%	17.6%	133
Extreme weather	39.4%	6.2%	1,284
Security	0.0%	0.3%	0

3,255 delay minutes on 24 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 2023?

77.0% of 152 scheduled domestic departures left less than 15 minutes late, and 78.9% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2023; 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.