UA1397 IAH → EWR

United Airlines · Houston, TX to Newark, NJ · 321 flights observed, 2025-07-01 to 2026-06-30 · 1,400 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -4 min, while the worst 10% run +75 min or later.

UA1397 covers more than one route in the data window — the stats below are for IAH → EWR, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
72%
Median delay
-4 min
90th percentile
+75 min
Cancellation rate
1%

How often is UA1397 on time?

Across 321 flights on IAH → EWR from 2025-07-01 to 2026-06-30, UA1397 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +75 min or later. 1% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time22772%
16-30 min258%
31-60 min237%
61-120 min248%
2+ hrs155%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072857%+56 min
2025-083060%+20 min
2025-09771%-1 min
2025-103057%+20 min
2025-112650%+64 min
2025-121573%+7 min
2026-013087%+2 min
2026-022685%-4 min
2026-033184%+0 min
2026-043083%-6 min
2026-053181%-2 min
2026-063077%+11 min

Performance by day of week

DayFlightsOn-time
Mon4578%
Tue4286%
Wed4377%
Thu4569%
Fri4755%
Sat4774%
Sun4569%

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