Delta Air Lines TUS to SEA on-time performance
Delta Air Lines nonstop flights from Tucson to Seattle · Aug 2025 – Jul 2026
On-time arrivals
89%
arrived < 15 min late
Cancelled
1.4%
2 flights
Avg arrival delay
18 min
152 min when late
Rank on route
#1 of 3
route average 86% on time
Key facts
- Delta Air Lines flights on TUS to SEA arrived on time 89% of the time in Aug 2025 – Jul 2026.
- 1.4% were cancelled, and 7% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 86% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (52%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)52%
- Late-arriving aircraft46%
- Air traffic control & airport congestion2%
- Extreme weather0%
- Security0%
Other airlines on TUS to SEA
- Alaska Airlines85% on time · 8 min avg delay
- SkyWest Airlines87% on time · 9 min avg delay
Full TUS to SEA 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.