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United Airlines

Is UA4178 delayed?

UA4178 is cancelled on Nov 14.

Usually on time: arrived within 15 min of schedule on 17 of the last 19 flights.

Last reported

Cancelled

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Newark

EWR

Scheduled

Nov 14

Arrival

Knoxville

TYS

Scheduled

Nov 14

Times shown in airport local time

Service date: · Scheduled departure date (America/New_York)

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • Newark → Knoxville

    6 min early

  • Newark → Knoxville

    31 min early

  • Newark → Knoxville

    22 min early

  • Newark → Knoxville

    36 min early

  • Newark → Knoxville

    37 min early

Is UA4178 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
19
On time
89%
of 19 arrivals
Late
11%
of 19 arrivals
Cancelled
5%
of 20 flights
Median arrival delay
33 min early
9 in 10 arrived within
6 min

On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.

How flight status works

At the airports today

Newark (EWR) departures

Left more than 15 min late
27 of 67
Cancelled today
44
Flights from Newark to Knoxville today

Related flights

Other flights EWR → KTYS

Return flights KTYS → EWR

All United Airlines flights

Flight history and details
UA4178 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 14, 2026CancelledNewarkKnoxvilleNot availableNot available
Nov 13, 2026ArrivedNewarkKnoxville-6
Nov 12, 2026ArrivedNewarkKnoxville-31
Nov 11, 2026ArrivedNewarkKnoxville-22
Nov 10, 2026ArrivedNewarkKnoxville-36
Nov 9, 2026ArrivedNewarkKnoxville-37
Nov 8, 2026ArrivedNewarkKnoxville-31
Nov 7, 2026ArrivedNewarkKnoxville-41
Nov 6, 2026ArrivedNewarkKnoxville54
Nov 5, 2026ArrivedNewarkKnoxville-37
Nov 4, 2026ArrivedNewarkKnoxville-33
Nov 3, 2026ArrivedNewarkKnoxville-39
Nov 2, 2026ArrivedNewarkKnoxville60
Nov 1, 2026ArrivedNewarkKnoxville-38
Oct 30, 2026ArrivedNewarkKnoxville-17
Oct 29, 2026ArrivedNewarkKnoxville-40
Oct 28, 2026ArrivedNewarkKnoxville-25
Oct 27, 2026ArrivedNewarkKnoxville-26
Oct 26, 2026ArrivedNewarkKnoxville-37
Oct 25, 2026ArrivedNewarkKnoxville-40
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