Flight profile · United Airlines

UA2434

Newark (EWR) to Los Angeles (LAX) · scheduled 6:00 AM – 9:05 AM

This page describes how UA2434 has historically performed, which is a different and more useful question when you are deciding what to book. The live position below is a reading from receivers on the ground, not flight status. For today’s status, check with United Airlines.

How UA2434 performs

927 operations, July 2023 – July 2026.

On-time arrivals
83.2%
760 of 914 completed
Cancellation rate
1.29%
12 cancelled
Median arrival delay
-8 min
Average 1.7 min
Severe delays
6.1%
Arrived 60+ minutes late
Delay when late
74 min
Average, when 15+ min late
Departure punctuality
80.8%
Left the gate on time

UA2434 arrived on time 83.2% of the time, against 74.5% for all EWR → LAX flights, so this departure is 8.7 percentage points better than the route as a whole. Against United Airlines’ own flights on this route it is 9.9 points better.

UA2434’s scheduled departure has moved during the period FlyerIntel has on file: it typically left around 6:30 AM earlier on, and around 6:00 AM more recently — a 30-minute shift, not the few minutes of day-to-day rounding every published schedule carries. Confirm the current departure time before booking around an older listing.

Source: US DOT Bureau of Transportation Statistics · 927 operations, July 2023 – July 2026 · If UA2434 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.

What stands out

How UA2434 compares to other flight numbers, not just to itself.

This flight runs unusually far ahead of the carrier's own average on this route, better than 92% of 11,589 comparable flight numbers.

83.2% on time for this specific departure, against 73.3% for the same carrier's other flights on this route.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.

Where UA2434 is right now

A live reading, only if you ask for it. It is not part of the reliability record above.

Ask for the position of UA2434 right now, if receivers on the ground are hearing it. Nothing is requested until you press the button.

Against the rest of the route

Against the rest of the route
Flight or routeOn timeCancelledMedian delaySevereFlights
UA243483.2%1.29%-8 min6.1%927
United Airlines on EWR → LAX73.3%1.95%-5 min10.9%10,229
All EWR → LAX flights74.5%2.04%-6 min10.6%16,291

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026

Why UA2434 runs late

Where US DOT attributed the delay minutes on this flight.

Share of the delay minutes US DOT attributed to each cause for UA2434 on EWR → LAX. Only delays of 15 minutes or more are attributed.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

Does a late aircraft delay this flight?

How often the plane that flies UA2434 comes in late, and what that does to the departure.

Inbound aircraft late
27%
184 of 673 departures came in 15+ minutes late
Scheduled time on the ground
5.8 hours
Median at EWR between the inbound and this departure
Left 15+ late after a late inbound
18%
184 departures
Left 15+ late after an on-time inbound
13%
489 departures

When the aircraft came in 15 or more minutes late, UA2434 pushed back an average of 4 minutes late; when it came in on time or early, an average of 4 minutes late.

Each departure is matched to the flight the same aircraft flew into EWR just before it, using the tail number in the DOT file, 673 of 915 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.

Against the network at the same turn length

UA2434 against all flights with a scheduled turn of 3 to 6 hours
Share of departuresInbound landed 15+ lateLeft 15+ late after a late inboundLeft 15+ late after an on-time inbound
UA243427%18%13%
Network, same turn33%24%11%

The schedule leaves a long gap on the ground, which gives a late aircraft room to catch up before this flight pushes back.

The network row is every flight with a scheduled turn of 3 to 6 hours. How often UA2434’s aircraft landed 15 or more minutes late is lower than the network’s and, once the aircraft was late, how often UA2434 left 15 or more minutes late is lower than the network’s.

More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

From pushback to gate

When it leaves EWR late, does that still matter by the time it reaches LAX?

Leaves the gate
11.2 minutes late
Average over 915 pushbacks
Taxi out at EWR
22.6 min
20.9 min for the airport in this hour
Taxi in at LAX
14.1 min
10.7 min for a typical LAX arrival
Reaches the gate at LAX
1.7 minutes late
Average over 914 arrivals

UA2434 pushes back an average of 11.2 minutes late and reaches the gate at LAX an average of 1.7 minutes late. The 9.6 minutes between those two figures are slack the published schedule already carries, which is why a late pushback on this flight does not reliably become a late arrival. It spends 22.6 minutes on the taxiways at EWR, 1.7 minutes longer than a typical EWR departure in the same hour.

On arrival at LAX, UA2434 spends 14.1 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 3.4 minutes longer than a typical LAX arrival (10.7 min).

Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached LAX. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 31,762 departures from EWR scheduled in the clock hour UA2434 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at LAX (595,170 flights), not just UA2434’s own. More on taxi time.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026

The hour it leaves EWR

Part of any flight’s record belongs to the clock rather than to the flight. UA2434 has one departure time, so this is what that time is worth.

UA243483.2%
All EWR departures, 6 AM–7 AM89.2%
All EWR departures, whole day77.7%

On-time arrival rate. 31,762 departures from EWR are scheduled in the 6 AM–7 AM hour over the period, against 387,621 across the whole day.

UA2434 is scheduled out of EWR at 6:00 AM, in the 6 AM–7 AM bank. Departures from EWR in that hour arrive on time 89.2% of the time against 77.7% across the airport’s whole day — the slot alone is worth 11.6 points better before anything about this particular flight is considered.

The two airport figures cover every departure from EWR to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Hours below 120 departures are not scored.

By day of week

Does UA2434 run worse on particular days?

Monday81.3%
Tuesday88.5%
Wednesday85.3%
Thursday84.2%
Friday85.6%
Saturday83.3%
Sunday73.8%

Tuesday is historically the most reliable day and Sunday the least, a gap of 14.7 percentage points.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Days with fewer than 120 operations are not scored.

Other routes UA2434 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.

Other routes UA2434 has flown
RouteOperatedFlightsOn time
ANC→IAH Anchorage to HoustonAugust 13–18, 20246—
SFO→EWR San Francisco to NewarkAugust 1–12, 202412—
GEG→SFO Spokane to San FranciscoAugust 1–12, 20246—
PHL→ORD Philadelphia to ChicagoJune 27, 2024 – July 31, 202429—
ORD→PHL Chicago to PhiladelphiaJune 27, 2024 – July 5, 20247—
PIT→ORD Pittsburgh to ChicagoMay 23, 2024 – June 26, 202425—
OMA→IAH Omaha to HoustonMay 2–22, 202421—
IAH→BWI Houston to BaltimoreMay 2–22, 202415—
ORD→ABQ Chicago to AlbuquerqueApril 9, 2024 – May 1, 202417—
ORD→EGE Chicago to EagleMarch 31, 2024 – April 8, 20249—
MSY→IAH New Orleans to HoustonFebruary 15, 2024 – March 6, 202421—
ORD→SFO Chicago to San FranciscoJanuary 9, 2024 – February 14, 202437—
SRQ→ORD Sarasota/Bradenton to ChicagoJanuary 9, 2024 – February 14, 202437—
LAX→BZN Los Angeles to BozemanAugust 1, 2023 – September 4, 202335—

Because the same number has served different journeys, the statistics above describe only the route UA2434 currently operates. Blending them would produce an average of two different flights.

When it goes wrong

The average describes a usual day. This is the day that ruins a connection.

One arrival in ten is worse than

29 min late

against a median of 8 min early

Arrived an hour or more late6.1%
Typical delay when late74 min
Cancelled1.29%
Landed somewhere else0.11%

Percentiles over 927 operations; cancelled and diverted flights are counted separately.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

Other flights on this route

Same airports, same journey, different odds of arriving on time.

Other flights on this route
FlightAirlineOn timeMedian arrivalOperations
UA2434 this flightUnited Airlines83.2%8 min early927
AS285Alaska Airlines81.1%10 min early642
AS289Alaska Airlines81.0%7 min early750
UA2679United Airlines78.3%6 min early876
UA2403United Airlines74.9%6 min early627
UA2191United Airlines74.3%5 min early651
AS287Alaska Airlines67.6%3 min early987

Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. UA2434 is placed in the same ordering rather than left out of it; the rows around it are the most punctual departures on the route, not all of them, so this is a comparison and not a rank. Schedules change; confirm the departure still operates before booking around this.

Data and methodology

Calculated by FlyerIntel from 927 records of UA2434 operating EWR → LAX, 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.

Full methodology · Data sources · Report a problem

Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air

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