Delta Air Lines SEA to ANC on-time performance
Delta Air Lines nonstop flights from Seattle to Anchorage · Aug 2025 – Jul 2026
On-time arrivals
77%
arrived < 15 min late
Cancelled
0.6%
10 flights
Avg arrival delay
15 min
63 min when late
Rank on route
#1 of 3
route average 76% on time
Key facts
- Delta Air Lines flights on SEA to ANC arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 7% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 76% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (61%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)61%
- Air traffic control & airport congestion19%
- Late-arriving aircraft15%
- Extreme weather5%
- Security0%
Other airlines on SEA to ANC
- Alaska Airlines76% on time · 13 min avg delay
- Hawaiian Airlines57% on time · 20 min avg delay
Full SEA to ANC comparison →
Delta Air Lines on-time record across all routes →
1,614 Delta Air Lines flights tracked on this route; 10 cancelled, 4 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.