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United Airlines

Is UA423 delayed?

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

Estimated arrivalLast reported

173 min late

This update may be out of date.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

Update time unavailable

Departure

Athens

ATH

Scheduled

Sep 16

Arrival

Chicago

ORD

Estimated

Scheduled 15:38

Sep 16

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Actual
Not available
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

    15 min late

  • ATH → ORD

    2 min late

  • ATH → ORD

    3 min late

  • ATH → ORD

    6 min early

  • ATH → ORD

    35 min late
Flight history and details

Aug 17, 2026 — Sep 16, 2026

Observed arrivals
27
Arrivals over 15 minutes late
4
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

UA423 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
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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