Alaska Airlines SEA to ATL on-time performance
Alaska Airlines nonstop flights from Seattle to Atlanta · Aug 2025 – Jul 2026
On-time arrivals
82%
arrived < 15 min late
Cancelled
0.6%
5 flights
Avg arrival delay
9 min
47 min when late
Rank on route
#2 of 2
route average 84% on time
Key facts
- Alaska Airlines flights on SEA to ATL arrived on time 82% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 3% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 84% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (42%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)42%
- Late-arriving aircraft33%
- Air traffic control & airport congestion25%
- Extreme weather1%
- Security0%
Other airlines on SEA to ATL
- Delta Air Lines84% on time · 14 min avg delay
Full SEA to ATL comparison →
Alaska Airlines on-time record across all routes →
897 Alaska Airlines flights tracked on this route; 5 cancelled, 6 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.