Most delayed flights from DLH: every route ranked

2 regularly flown nonstop routes from Duluth International Airport, worst on-time record first (Aug 2025 – Jul 2026). Routes with fewer than 360 flights in the period are listed separately.

#	Destination	On time	Cancelled	Avg delay	Airlines	Flights
1	DLH → ORD Chicago, IL	69%	4.5%	33 min	2	1,223
2	DLH → MSP Minneapolis, MN	82%	2.7%	19 min	2	1,206

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.