Most delayed flights from GRB: every route ranked

4 regularly flown nonstop routes from Austin Straubel 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	GRB → ORD Chicago, IL	73%	4.4%	24 min	3	2,698
2	GRB → DTW Detroit, MI	81%	1.9%	21 min	2	875
3	GRB → MSP Minneapolis, MN	82%	1.4%	18 min	2	867
4	GRB → ATL Atlanta, GA	88%	1.9%	13 min	1	366

Less frequent routes

Too few flights for a reliable ranking.

GRB → DEN (Denver) 6 flts
GRB → CLT (Charlotte) 4 flts
GRB → PHX (Phoenix) 3 flts
GRB → PHL (Philadelphia) 2 flts
GRB → DCA (Washington) 2 flts
GRB → CMX (Hancock/Houghton) 1 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.