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United Airlines

Is UA423 delayed?

Service date: · Scheduled departure date (Europe/Athens)

Arrived

1 min early

Official source · Updated

Departure

Athens

ATH

Actual

Scheduled 12:35

Sep 1

Arrival

Chicago

ORD

Actual

Scheduled 16:15

Sep 1

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Route overview: Athens → ChicagoATHORD
Route overview

Recent arrivals

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

  • ATH → ORD

    11 min late

  • ATH → ORD

    157 min late

  • ATH → ORD

    15 min late

  • ATH → ORD

    2 min late

  • ATH → ORD

    3 min late
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
29
Arrivals over 15 minutes late
5
Observed cancellations
0
Observed occurrences
30

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

UA423 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedAthensChicago
11
Sep 16, 2026ArrivedAthensChicago
157
Sep 15, 2026ArrivedAthensChicago
15
Sep 14, 2026ArrivedAthensChicago
2
Sep 13, 2026ArrivedAthensChicago
3
Sep 12, 2026ArrivedAthensChicago
-6
Sep 11, 2026ArrivedAthensChicago
35
Sep 10, 2026ArrivedAthensChicago
7
Sep 9, 2026ArrivedAthensChicago
195
Sep 8, 2026ArrivedAthensChicago
0
Sep 7, 2026ArrivedAthensChicago
17
Sep 6, 2026ArrivedAthensChicago
-29
Sep 5, 2026ArrivedAthensChicago
-54
Sep 4, 2026ArrivedAthensChicago
-34
Sep 3, 2026ArrivedAthensChicago
-5
Sep 2, 2026ArrivedAthensChicago
-14
Sep 1, 2026ArrivedAthensChicago
-1
Aug 31, 2026ArrivedAthensChicago
40
Aug 30, 2026ArrivedAthensChicago
-53
Aug 29, 2026ArrivedAthensChicago
-56
Aug 28, 2026ArrivedAthensChicago
-27
Aug 27, 2026ArrivedAthensChicago
-39
Aug 26, 2026ArrivedAthensChicago
-29
Aug 25, 2026ArrivedAthensChicago
-45
Aug 24, 2026ArrivedAthensChicago
-43
Aug 23, 2026ArrivedAthensChicago
-39
Aug 21, 2026ArrivedAthensChicago
-24
Aug 20, 2026ArrivedAthensChicago
-27
Aug 19, 2026ArrivedAthensChicago
-4

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