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United Airlines

Is UA4311 delayed?

No — UA4311 landed in Dulles 31 min early, at 06:53 on Sep 29 (as of Sep 29, 10:53 UTC).

Usually on time: arrived within 15 min of schedule on 18 of the last 18 flights.

Arrived

31 min early

Official source · Updated

Departure

Knoxville

TYS

Actual

Scheduled 06:00

Sep 29

Arrival

Dulles

IAD

Actual

Scheduled 07:25

Sep 29

Times shown in airport local time

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

Market settled: On time.

View this flight’s marketHow this market settles

Think UA4311 runs late on Sep 30? Delayed is trading at 14¢ — pays out x6.89.

Will United Airlines UAL 4311 from Knoxville to Dulles arrive on time, be delayed, or be cancelled on Sep 30?
On timePays out x1.1983%DelayedPays out x6.8914%CancelledPays out x49.702%
$45 tradedDeparts Wed, Sep 30, 10:00 AM UTC
How this market settles
Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Recent arrivals

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

  • Knoxville → Dulles

    31 min early

  • Knoxville → Dulles

    13 min early

  • Knoxville → Dulles

    On schedule (<1 min behind)

  • Knoxville → Dulles

    19 min early

  • Knoxville → Dulles

    3 min early

Is UA4311 usually late?

Observation window: Aug 30, 2026 – Sep 29, 2026

Observed arrivals
18
On time
100%
of 18 arrivals
Late
0%
of 18 arrivals
Cancelled
0%
of 18 flights
Median arrival delay
17 min early
9 in 10 arrived within
6 min early

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. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

At the airports today

Dulles (IAD) departures

Left more than 15 min late
25 of 175
Cancelled today
0

Related flights

Other flights KTYS → IAD

All United Airlines flights

Flight history and details
UA4311 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 29, 2026ArrivedKnoxvilleDulles
View this flight’s market
-31
Sep 28, 2026ArrivedKnoxvilleDulles-13
Sep 27, 2026ArrivedKnoxvilleDulles0
Sep 26, 2026ArrivedKnoxvilleDulles-19
Sep 25, 2026ArrivedKnoxvilleDulles-3
Sep 24, 2026ArrivedKnoxvilleDulles-15
Sep 21, 2026ArrivedKnoxvilleDulles-15
Sep 20, 2026ArrivedKnoxvilleDulles-8
Sep 19, 2026ArrivedKnoxvilleDulles-19
Sep 18, 2026ArrivedKnoxvilleDulles-14
Sep 17, 2026ArrivedKnoxvilleDulles-17
Sep 14, 2026ArrivedKnoxvilleDulles-11
Sep 13, 2026ArrivedKnoxvilleDulles-19
Sep 12, 2026ArrivedKnoxvilleDulles-25
Sep 7, 2026ArrivedKnoxvilleDulles-17
Sep 6, 2026ArrivedKnoxvilleDulles-20
Sep 5, 2026ArrivedKnoxvilleDulles-17
Sep 4, 2026ArrivedKnoxvilleDulles-21

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