American Airlines PHL to SEA on-time performance
American Airlines nonstop flights from Philadelphia to Seattle · Aug 2025 – Jul 2026
On-time arrivals
72%
arrived < 15 min late
Cancelled
2.2%
14 flights
Avg arrival delay
15 min
51 min when late
Rank on route
#1 of 3
route average 70% on time
Key facts
- American Airlines flights on PHL to SEA arrived on time 72% of the time in Aug 2025 – Jul 2026.
- 2.2% were cancelled, and 7% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 70% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (38%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)38%
- Air traffic control & airport congestion36%
- Late-arriving aircraft22%
- Extreme weather4%
- Security1%
Other airlines on PHL to SEA
- Alaska Airlines68% on time · 17 min avg delay
- Delta Air Lines69% on time · 26 min avg delay
Full PHL to SEA comparison →
American Airlines on-time record across all routes →
649 American Airlines flights tracked on this route; 14 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.