Duluth International in March 2025

82.6%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 March 2025, reporting carriers scheduled 195 domestic departures from Duluth International (DLH). 82.6% left less than 15 minutes late and 81.0% reached their destination on time; 1.0% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so DLH departures were 2.7 points above the national departure figure.

A year earlier, in March 2024, the airport had 150 departures with 89.3% leaving on time: a change of −6.7 points, with flights up 30%.

Flights arriving at DLH that month were on time 75.4% of the time (195 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 38%, extreme weather 27% and national aviation system 18%.

On time 81.0%
Arrived 15+ minutes late 17.9%
Cancelled 1.0%
Diverted 0.0%

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

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

Measure	Mar 2025	Mar 2024	DLH, 12 months to Jul 2026	All reported flights, Mar 2025
Departed on time	82.6%	89.3%	76.9%	79.9%
Arrived on time	81.0%	85.3%	72.7%	79.3%
Cancelled	1.0%	2.0%	3.6%	1.2%
Average departure delay (late minutes only)	17.3 min	13.5 min	24.5 min	14.9 min
Scheduled departures a day	7	5	7	20,029
Scheduled departures	195	150	2,429	600,872

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	195	100%	81.0%	8.3 min	1.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DLH–MSP	Duluth to Minneapolis	112	89.3%	-4.4 min	0.9%
DLH–ORD	Duluth to Chicago	83	69.9%	25.5 min	1.2%

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), March 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2025	Minutes
Air carrier	37.6%	33.0%	1,334
Late-arriving aircraft	17.3%	39.2%	613
National Aviation System	18.4%	21.9%	655
Extreme weather	26.7%	5.9%	950
Security	0.0%	0.1%	0

3,552 delay minutes on 35 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 March 2025?

82.6% of 195 scheduled domestic departures left less than 15 minutes late, and 81.0% reached their destination on time. The national figures that month were 79.9% and 79.3%.

How does that compare with a year earlier?

In March 2024, 89.3% of 150 departures left on time and 2.0% were cancelled, against 82.6% and 1.0% in March 2025.

Provenance

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