Alaska Airlines CLE to SEA on-time performance
Alaska Airlines nonstop flights from Cleveland to Seattle · Aug 2025 – Jul 2026
On-time arrivals
63%
arrived < 15 min late
Cancelled
1.8%
8 flights
Avg arrival delay
20 min
49 min when late
Rank on route
#1 of 1
route average 63% on time
Key facts
- Alaska Airlines flights on CLE to SEA arrived on time 63% of the time in Aug 2025 – Jul 2026.
- 1.8% were cancelled, and 9% arrived an hour or more late.
- That ranks #1 of 1 airlines on this route, which averaged 63% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (34%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion34%
- Late-arriving aircraft32%
- Airline (crew, maintenance, cleaning, fueling)27%
- Extreme weather6%
- Security1%
Other airlines on CLE to SEA
456 Alaska Airlines flights tracked on this route; 8 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.