Flight profile · United Airlines

UA2303

Los Angeles (LAX) to Newark (EWR) · scheduled 11:59 PM – 7:00 AM

FlyerIntel does not track flights in the air. This page describes how UA2303 has historically performed, which is a different and more useful question when you are deciding what to book. For today’s status, check with United Airlines.

How UA2303 performs

524 operations, 2024-12-19 to 2026-06-30.

On-time arrivals
78.4%
404 of 515 completed
Cancellation rate
1.53%
8 cancelled
Median arrival delay
-5 min
Average 4.6 min
Severe delays
7.0%
Arrived 60+ minutes late
Delay when late
58 min
Average, when 15+ min late
Departure punctuality
72.7%
Left the gate on time

UA2303 arrived on time 78.4% of the time, against 79.8% for all LAXEWR flights — this specific departure is 1.4 percentage points worse than the route as a whole.

Source: US DOT Bureau of Transportation Statistics · 524 operations between 2024-12-19 to 2026-06-30

Against the rest of the route

On timeCancelledMedian delaySevereFlights
UA230378.4%1.53%-5 min7.0%524
United Airlines on LAXEWR79.2%1.93%-10 min8.9%9,922
All LAXEWR flights79.8%1.84%-10 min8.3%15,883

Source: FlyerIntel analysis of US DOT BTS data · 2024-12-19 to 2026-06-30

Other routes UA2303 has flown

A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.

RouteOperatedFlightsOn time
SFOLAX San Francisco to Los Angeles2026-04-302026-05-2021
DENSDF Denver to Louisville2025-05-222025-06-2535
IADLAX Washington to Los Angeles2024-01-092025-03-0332681.6%
PHXIAD Phoenix to Washington2024-02-152024-12-0229287.6%
IADEWR Washington to Newark2024-03-312024-03-311
MCOIAH Orlando to Houston2023-11-282024-01-0842
IADSAN Washington to San Diego2023-07-012023-11-2714093.5%
DENMCI Denver to Kansas City2023-11-262023-11-261

Because the same number has served different journeys, the statistics above describe only the route UA2303 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 524 records of UA2303 operating LAXEWR, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.

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