Most delayed flights from BIS: every route ranked

3 regularly flown nonstop routes from Bismarck Municipal 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	BIS → DEN Denver, CO	80%	0.6%	24 min	1	1,466
2	BIS → DFW Dallas/Fort Worth, TX	82%	1.1%	16 min	1	727
3	BIS → MSP Minneapolis, MN	84%	0.7%	14 min	2	1,032

Less frequent routes

Too few flights for a reliable ranking.

BIS → ORD (Chicago) 274 flts
BIS → AZA (Phoenix) 244 flts
BIS → LAS (Las Vegas) 116 flts
BIS → SFB (Sanford) 15 flts

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.