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United Airlines

Is UA4939 delayed?

UA4939 is cancelled on Nov 14.

Usually on time: arrived within 15 min of schedule on 24 of the last 28 flights.

Last reported

Cancelled

This update may be out of date.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

Update time unavailable

Departure

Ithaca

ITH

Scheduled

Nov 14

Arrival

Dulles

IAD

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.

  • Ithaca → Dulles

    200 min late

  • Ithaca → Dulles

    12 min early

  • Ithaca → Dulles

    34 min early

  • Ithaca → Dulles

    15 min early

  • Ithaca → Dulles

    29 min early

Is UA4939 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
28
On time
86%
of 28 arrivals
Late
14%
of 28 arrivals
Cancelled
3%
of 29 flights
Median arrival delay
14 min early
9 in 10 arrived within
25 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
18 of 47
Cancelled today
28

Related flights

Other flights KITH → IAD

Return flights IAD → KITH

All United Airlines flights

Flight history and details
UA4939 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 14, 2026CancelledIthacaDullesNot availableNot available
Nov 13, 2026ArrivedIthacaDulles200
Nov 12, 2026ArrivedIthacaDulles-12
Nov 11, 2026ArrivedIthacaDulles-34
Nov 10, 2026ArrivedIthacaDulles-15
Nov 9, 2026ArrivedIthacaDulles-29
Nov 8, 2026ArrivedIthacaDulles-23
Nov 7, 2026ArrivedIthacaDulles-15
Nov 6, 2026ArrivedIthacaDulles-17
Nov 5, 2026ArrivedIthacaDulles-34
Nov 4, 2026ArrivedIthacaDulles-12
Nov 3, 2026ArrivedIthacaDulles-33
Nov 2, 2026ArrivedIthacaDulles-33
Nov 1, 2026ArrivedIthacaDulles-14
Oct 31, 2026ArrivedIthacaDulles-26
Oct 30, 2026ArrivedIthacaDulles-37
Oct 29, 2026ArrivedIthacaDulles-28
Oct 28, 2026ArrivedIthacaDulles-20
Oct 27, 2026ArrivedIthacaDulles-15
Oct 26, 2026ArrivedIthacaDulles24
Oct 25, 2026ArrivedIthacaDulles26
Oct 24, 2026ArrivedIthacaDulles5
Oct 23, 2026ArrivedIthacaDulles2
Oct 22, 2026ArrivedIthacaDulles5
Oct 21, 2026ArrivedIthacaDulles1
Oct 19, 2026ArrivedIthacaDulles159
Oct 18, 2026ArrivedIthacaDulles-2
Oct 17, 2026ArrivedIthacaDulles-1
Oct 16, 2026ArrivedIthacaDulles-10
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