Delta Air Lines SEA to TUS on-time performance
Delta Air Lines nonstop flights from Seattle to Tucson · Aug 2025 – Jul 2026
On-time arrivals
84%
arrived < 15 min late
Cancelled
1.4%
2 flights
Avg arrival delay
13 min
73 min when late
Rank on route
#2 of 3
route average 83% on time
Key facts
- Delta Air Lines flights on SEA to TUS arrived on time 84% of the time in Aug 2025 – Jul 2026.
- 1.4% were cancelled, and 4% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 83% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (57%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)57%
- Late-arriving aircraft18%
- Air traffic control & airport congestion15%
- Extreme weather10%
- Security0%
Other airlines on SEA to TUS
- Alaska Airlines80% on time · 9 min avg delay
- SkyWest Airlines87% on time · 8 min avg delay
Full SEA to TUS comparison →
Delta Air Lines on-time record across all routes →
138 Delta Air Lines flights tracked on this route; 2 cancelled, 0 diverted.
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.