MIA → SEA American Airlines

American Airlines · Miami, FL to Seattle, WA · 423 flights, 2025-07-01 to 2026-06-30 · aggregated across 4 flight numbers

This route is usually on time, but has a real long-delay tail — typical (median) delay is 0 min, while the worst 10% run +61 min or later.
On-time arrival
70%
Median delay
0 min
90th percentile
+61 min
Cancellation rate
0%

How on-time is American Airlines from MIA to SEA?

Across every American Airlines flight number on MIA → SEA (423 flights, 2025-07-01 to 2026-06-30), 70% arrived within 15 minutes of schedule. Median arrival delay 0 min; the worst 10% ran +61 min or later. 0% were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time29570%
16-30 min4611%
31-60 min369%
61-120 min307%
2+ hrs133%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073174%+13 min
2025-083067%+14 min
2025-093070%+10 min
2025-103177%+4 min
2025-113080%+2 min
2025-124473%+9 min
2026-013352%+21 min
2026-022871%+15 min
2026-033155%+20 min
2026-043063%+11 min
2026-054269%+6 min
2026-066082%+2 min

Performance by day of week

DayFlightsOn-time
Mon6068%
Tue6080%
Wed5878%
Thu6172%
Fri6065%
Sat6063%
Sun6166%

AA flight numbers on MIA → SEA

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…