UA366 EWR → BOS

United Airlines · Newark, NJ to Boston, MA · 36 flights observed, 2026-01-06 to 2026-02-11 · 200 mi

This flight's reliability varies a lot by day of week — 100% on-time on Wednesdays vs. 50% on Tuesdays.

UA366 covers more than one route in the data window — the stats below are for EWR → BOS, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
82%
Median delay
-4 min
90th percentile
+25 min
Cancellation rate
6%

How often is UA366 on time?

Across 36 flights on EWR → BOS from 2026-01-06 to 2026-02-11, UA366 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +25 min or later. 6% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2882%
16-30 min39%
31-60 min00%
61-120 min26%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2026-012479%+4 min
2026-021090%+2 min

Performance by day of week

DayFlightsOn-time
Mon4100%
Tue650%
Wed5100%
Thu5100%
Fri580%
Sat580%
Sun475%

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