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United Airlines

Is UA4527 delayed?

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

Arrived

29 min early

Official source · Updated

Departure

Dulles

IAD

Actual

Scheduled 18:08

Sep 7

Arrival

St Louis

STL

Actual

Scheduled 00:05

Sep 7

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual

Recent arrivals

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

  • IAD → STL

    311 min late

  • IAD → STL

    15 min early

  • IAD → STL

    25 min early

  • IAD → STL

    26 min early

  • IAD → STL

    28 min early
Flight history and details

Aug 19, 2026 — Sep 18, 2026

Observed arrivals
19
Arrivals over 15 minutes late
4
Observed cancellations
0
Observed occurrences
28

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

UA4527 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedDullesSt Louis
View this flight’s market
311
Sep 16, 2026ArrivedDullesSt Louis
-15
Sep 15, 2026ArrivedDullesSt Louis
-25
Sep 14, 2026ArrivedDullesSt Louis
-26
Sep 13, 2026ArrivedDullesSt Louis
-28
Sep 12, 2026ArrivedDullesSt Louis
106
Sep 11, 2026ArrivedDullesSt Louis
-27
Sep 10, 2026ArrivedDullesSt Louis
-11
Sep 9, 2026ArrivedDullesSt Louis
-28
Sep 8, 2026ArrivedDullesSt Louis
-41
Sep 7, 2026ArrivedDullesSt Louis
-29
Sep 6, 2026ArrivedDullesSt Louis
-30
Sep 5, 2026ArrivedDullesSt Louis
4
Sep 3, 2026ArrivedDullesSt Louis
-29
Sep 1, 2026ArrivedDullesSt Louis
-37
Aug 27, 2026ArrivedDullesSt Louis
164
Aug 26, 2026ArrivedDullesSt Louis
-18
Aug 23, 2026ArrivedDullesSt Louis
-18
Aug 22, 2026ArrivedDullesSt Louis
33

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