Duluth International in July 2026

75.8%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 July 2026, reporting carriers scheduled 244 domestic departures from Duluth International (DLH). 75.8% left less than 15 minutes late and 71.3% reached their destination on time; 6.1% were cancelled.

Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so DLH departures were 7.0 points above the national departure figure.

A year earlier, in July 2025, the airport had 211 departures with 76.8% leaving on time: a change of −1.0 points, with flights up 16%.

Flights arriving at DLH that month were on time 71.3% of the time (244 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 47%, late-arriving aircraft 36% and national aviation system 15%.

On time 71.3%
Arrived 15+ minutes late 22.5%
Cancelled 6.1%
Diverted 0.0%

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

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

Measure	Jul 2026	Jul 2025	DLH, 12 months to Jul 2026	All reported flights, Jul 2026
Departed on time	75.8%	76.8%	76.9%	68.8%
Arrived on time	71.3%	73.5%	72.7%	69.4%
Cancelled	6.1%	1.4%	3.6%	2.6%
Average departure delay (late minutes only)	23.4 min	31.3 min	24.5 min	24.1 min
Scheduled departures a day	8	7	7	21,066
Scheduled departures	244	211	2,429	631,970

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	244	100%	71.3%	14.6 min	6.1%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DLH–MSP	Duluth to Minneapolis	124	81.5%	-0.8 min	4.0%
DLH–ORD	Duluth to Chicago	120	60.8%	31.4 min	8.3%

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), July 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2026	Minutes
Air carrier	47.0%	31.7%	2,505
Late-arriving aircraft	36.2%	41.8%	1,926
National Aviation System	14.9%	19.9%	796
Extreme weather	1.9%	6.5%	100
Security	0.0%	0.1%	0

5,327 delay minutes on 55 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 July 2026?

75.8% of 244 scheduled domestic departures left less than 15 minutes late, and 71.3% reached their destination on time. The national figures that month were 68.8% and 69.4%.

How does that compare with a year earlier?

In July 2025, 76.8% of 211 departures left on time and 1.4% were cancelled, against 75.8% and 6.1% in July 2026.

Provenance

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