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United Airlines

Is UA4188 delayed?

Service date: · Scheduled departure date (UTC)

Arrived

18 min early

Official source · Updated

Departure

Dayton

DAY

Actual

Scheduled 00:13

Sep 15

Arrival

Dulles

IAD

Actual

Scheduled 21:17

Sep 15

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
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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.

  • DAY IAD

    18 min early
  • DAY IAD

    14 min early
  • DAY IAD

    10 min early
  • DAY IAD

    57 min late
  • DAY IAD

    32 min early
Flight history and details

Aug 17, 2026 Sep 16, 2026

Observed arrivals
15
Arrivals over 15 minutes late
1
Observed cancellations
0
Observed occurrences
29

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

UA4188 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 16, 2026ArrivedDaytonDulles-18
Sep 15, 2026ArrivedDaytonDulles
-14
Sep 14, 2026ArrivedDaytonDulles
-10
Sep 13, 2026ArrivedDaytonDulles
57
Sep 12, 2026ArrivedDaytonDulles
-32
Sep 11, 2026ArrivedDaytonDulles
-34
Sep 10, 2026ArrivedDaytonDulles
8
Sep 9, 2026ArrivedDaytonDulles
-28
Sep 7, 2026ArrivedNewarkWilmington
-19
Sep 6, 2026ArrivedNewarkWilmington
-32
Sep 5, 2026ArrivedNewarkWilmington
-24
Sep 4, 2026ArrivedNewarkWilmington
-26
Aug 30, 2026ArrivedNewarkWilmington
-26
Aug 29, 2026ArrivedNewarkWilmington
-22
Aug 28, 2026ArrivedNewarkWilmington
-18