Duluth International in April 2026

74.6%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 April 2026, reporting carriers scheduled 244 domestic departures from Duluth International (DLH). 74.6% left less than 15 minutes late and 67.2% reached their destination on time; 4.5% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so DLH departures were 4.5 points below the national departure figure.

A year earlier, in April 2025, the airport had 168 departures with 87.5% leaving on time: a change of −12.9 points, with flights up 45%.

Flights arriving at DLH that month were on time 68.6% of the time (245 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 42%, late-arriving aircraft 25% and extreme weather 17%.

On time 67.2%
Arrived 15+ minutes late 27.9%
Cancelled 4.5%
Diverted 0.4%

Every scheduled departure from DLH in April 2026, judged by arrival at the destination.

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

Measure	Apr 2026	Apr 2025	DLH, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	74.6%	87.5%	76.9%	79.1%
Arrived on time	67.2%	83.9%	72.7%	78.9%
Cancelled	4.5%	1.2%	3.6%	0.9%
Average departure delay (late minutes only)	30.7 min	10.3 min	24.5 min	14.5 min
Scheduled departures a day	8	6	7	19,931
Scheduled departures	244	168	2,429	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	166	68%	65.1%	33.2 min	4.8%
YX Republic Airline	78	32%	71.8%	11.8 min	3.8%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DLH–ORD	Duluth to Chicago	136	60.3%	40.4 min	7.4%
DLH–MSP	Duluth to Minneapolis	108	75.9%	9.9 min	0.9%

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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	41.9%	33.5%	3,212
Late-arriving aircraft	25.1%	40.4%	1,920
National Aviation System	15.5%	21.0%	1,190
Extreme weather	17.4%	5.0%	1,336
Security	0.0%	0.1%	0

7,658 delay minutes on 68 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 April 2026?

74.6% of 244 scheduled domestic departures left less than 15 minutes late, and 67.2% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 87.5% of 168 departures left on time and 1.2% were cancelled, against 74.6% and 4.5% in April 2026.

Provenance

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