Most delayed flights from TUS: every route ranked

12 regularly flown nonstop routes from Tucson 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	TUS → SFO San Francisco, CA	69%	0.4%	22 min	2	945
2	TUS → SAN San Diego, CA	76%	0.5%	15 min	1	654
3	TUS → ORD Chicago, IL	77%	1.4%	22 min	4	1,040
4	TUS → DFW Dallas/Fort Worth, TX	80%	3.5%	21 min	3	2,189
5	TUS → DEN Denver, CO	83%	0.5%	12 min	4	2,740
6	TUS → PHX Phoenix, AZ	83%	0.5%	15 min	4	3,465
7	TUS → LAS Las Vegas, NV	85%	0.2%	11 min	2	1,336
8	TUS → SEA Seattle, WA	86%	0.7%	10 min	3	1,065
9	TUS → LAX Los Angeles, CA	86%	0.4%	11 min	2	2,589
10	TUS → ATL Atlanta, GA	92%	2.0%	10 min	1	809
11	TUS → SLC Salt Lake City, UT	93%	0.3%	6 min	2	1,112
12	TUS → PDX Portland, OR	93%	0.0%	6 min	2	365

Less frequent routes

Too few flights for a reliable ranking.

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.