AA4351 CMH → BOS

American Airlines · Columbus, OH to Boston, MA · 42 flights observed, 2026-02-12 to 2026-04-06 · 640 mi

This flight's reliability varies a lot by day of week — 100% on-time on Thursdays vs. 57% on Mondays.

AA4351 covers more than one route in the data window — the stats below are for CMH → BOS, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
76%
Median delay
-15 min
90th percentile
+39 min
Cancellation rate
2%

How often is AA4351 on time?

Across 42 flights on CMH → BOS from 2026-02-12 to 2026-04-06, AA4351 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +39 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3176%
16-30 min25%
31-60 min512%
61-120 min12%
2+ hrs25%

Performance by month

MonthFlightsOn-timeAvg delay
2026-02989%-14 min
2026-032770%+8 min
2026-04580%-4 min

Performance by day of week

DayFlightsOn-time
Mon757%
Tue771%
Wed757%
Thu8100%
Fri6100%
SatNo data—
Sun667%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…