Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL423

Operated by UAL

Live map

Live map filtered to UAL423. Shown when the flight is currently airborne.

Route airports View route page →

Departure

ATH LGAV VFR

Athens Eleftherios Venizelos International Airport

Spata-Artemida, GR

Local time
13:07 GMT+3
Timezone
Europe/Athens
Type
Large Airport
Elevation
308 ft
Coordinates
37.9364, 23.9445

cloud Weather

Wind
50° / 14 kt
Visibility
6 SM
Ceiling
FEW 2,500 ft, SCT 7,000 ft
Temp / Dew
18°C / 12°C
Altimeter
30.06 inHg

Obs: 2026-04-15T09:50:00.000Z

Raw METAR / TAF 
METAR LGAV 150950Z 05014KT 9999 FEW025 SCT070 18/12 Q1018 NOSIG

TAF LGAV 150500Z 1506/1606 VRB03KT 9999 FEW020 BKN070 BECMG 1506/1508 02014KT TEMPO 1512/1516 03014G24KT

flight Live Traffic

flight_takeoff 5 Departures
flight_land 5 Arrivals

Arrival

ORD KORD MVFR

Chicago O'Hare International Airport

Chicago, US

Local time
05:07 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
680 ft
Coordinates
41.9786, -87.9048

cloud Weather

Wind
230° / 7 kt
Visibility
10 SM
Ceiling
BKN 3,000 ft, BKN 7,000 ft, OVC 25,000 ft
Temp / Dew
20°C / 18°C
Altimeter
29.74 inHg

Obs: 2026-04-15T09:51:00.000Z

Raw METAR / TAF 
METAR KORD 150951Z 23007KT 10SM BKN030 BKN070 OVC250 20/18 A2974 RMK AO2 SLP065 OCNL LTGIC DSNT SW CB DSNT SW MOV NE T02000178

TAF KORD 150905Z 1509/1612 19008KT P6SM -SHRA VCTS BKN040CB TEMPO 1509/1513 31010G20KT 3SM -SHRA BR OVC035 FM151300 21013G20KT P6SM VCSH SCT050 BKN100 FM152200 19012G22KT 6SM -SHRA VCTS SCT025 BKN040CB TEMPO 1522/1602 2SM TSRA BR OVC030CB FM160200 18009KT 6SM -SHRA VCTS SCT015CB OVC035

flight Live Traffic

flight_takeoff 310 Departures
flight_land 723 Arrivals

Recent history last 1

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-14 A2CA64 - Apr 14, 09:55 UTCApr 14, 20:43 UTC10h 48m +20m +22m

Performance history

Flights tracked
1
Avg arrival delay
+22m
On-time arrival
0% 0% on time
Aircraft used
1

Monthly activity 1 month

Month Flights tracked
April 2026 1

UAL423 frequently asked

Where does flight UAL423 fly?
UAL423 (UAL) flies from ATH to ORD. View the full route page.
How long is flight UAL423?
Based on observed flights, UAL423 takes on average 10h 48m from takeoff to landing.
How often does UAL423 fly?
UAL423 has been observed flying rarely in our tracking data. We've recorded 1 flight under this callsign.
Is flight UAL423 usually on time?
Across recent flights, UAL423 arrives with an average 22-minute delay. 0% of flights arrive within 15 minutes of schedule.
Can I track UAL423 live?
Yes. When UAL423 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.