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United Airlines

Is UA4304 delayed?

UA4304 is cancelled on Nov 13.

Usually on time: arrived within 15 min of schedule on 26 of the last 27 flights.

Last reported

Cancelled

This update may be out of date.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

Update time unavailable

Departure

Dulles

IAD

Scheduled

Nov 13

Arrival

Knoxville

TYS

Scheduled

Nov 13

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.

  • Dulles → Knoxville

    28 min early

  • Dulles → Knoxville

    26 min early

  • Dulles → Knoxville

    10 min early

  • Dulles → Knoxville

    18 min early

  • Dulles → Knoxville

    20 min early

Is UA4304 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
27
On time
96%
of 27 arrivals
Late
4%
of 27 arrivals
Cancelled
4%
of 28 flights
Median arrival delay
18 min early
9 in 10 arrived within
3 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

Dulles (IAD) departures

Left more than 15 min late
17 of 46
Cancelled today
28
Flights from Dulles to Knoxville today

Related flights

Other flights IAD → KTYS

Return flights KTYS → IAD

All United Airlines flights

Flight history and details
UA4304 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 13, 2026CancelledDullesKnoxvilleNot availableNot available
Nov 12, 2026ArrivedDullesKnoxville-28
Nov 11, 2026ArrivedDullesKnoxville-26
Nov 10, 2026ArrivedDullesKnoxville-10
Nov 9, 2026ArrivedDullesKnoxville-18
Nov 8, 2026ArrivedDullesKnoxville-20
Nov 6, 2026ArrivedDullesKnoxville-8
Nov 5, 2026ArrivedDullesKnoxville12
Nov 4, 2026ArrivedDullesKnoxville-21
Nov 3, 2026ArrivedDullesKnoxville-25
Nov 2, 2026ArrivedDullesKnoxville-18
Nov 1, 2026ArrivedDullesKnoxville-14
Oct 30, 2026ArrivedDullesKnoxville-17
Oct 29, 2026ArrivedDullesKnoxville-20
Oct 28, 2026ArrivedDullesKnoxville3
Oct 27, 2026ArrivedDullesKnoxville-28
Oct 26, 2026ArrivedDullesKnoxville-4
Oct 25, 2026ArrivedDullesKnoxville0
Oct 24, 2026ArrivedDullesKnoxville-32
Oct 23, 2026ArrivedDullesKnoxville-12
Oct 22, 2026ArrivedDullesKnoxville-32
Oct 21, 2026ArrivedDullesKnoxville-38
Oct 20, 2026ArrivedDullesKnoxville-19
Oct 19, 2026ArrivedDullesKnoxville-22
Oct 18, 2026ArrivedDullesKnoxville-3
Oct 17, 2026ArrivedDullesKnoxville-25
Oct 16, 2026ArrivedDullesKnoxville41
Oct 15, 2026ArrivedDullesKnoxville4
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