Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL3857

Operated by United Airlines

Live map

Live map filtered to UAL3857. Shown when the flight is currently airborne.

Route airports View route page →

Departure

NCE LFMN VFR

Nice-Côte d'Azur Airport

Nice, Alpes-Maritimes, FR

Local time
11:30 GMT+2
Timezone
Europe/Paris
Type
Large Airport
Elevation
12 ft
Coordinates
43.6584, 7.2159

cloud Weather

Wind
350° / 11 kt
Visibility
6 SM
Ceiling
FEW 3,300 ft, FEW 7,000 ft, BKN 16,000 ft
Temp / Dew
27°C / 19°C
Altimeter
29.97 inHg
Wx
-SHRA

Obs: 2026-08-28T09:00:00.000Z

Raw METAR / TAF 
METAR LFMN 280900Z 35011KT 330V030 9999 -SHRA FEW033 FEW070CB BKN160 27/19 Q1015 TEMPO SHRA

TAF LFMN 280800Z 2809/2915 26006KT 9999 FEW080TCU BKN140 TEMPO 2809/2812 SHRA PROB40 TEMPO 2809/2812 VRB15G25KT -TSRA SCT080CB BECMG 2818/2821 32010KT CAVOK BECMG 2909/2911 22012KT PROB40 2912/2915 09012KT

flight Live Traffic

flight_takeoff 1 Departures
flight_land 0 Arrivals

Arrival

ORD KORD VFR

Chicago O'Hare International Airport

Chicago, US

Local time
04:30 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
680 ft
Coordinates
41.9786, -87.9048

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
BKN 8,000 ft
Temp / Dew
21°C / 17°C
Altimeter
30.09 inHg

Obs: 2026-08-28T08:51:00.000Z

Raw METAR / TAF 
METAR KORD 280851Z 00000KT 10SM BKN080 21/17 A3009 RMK AO2 SLP183 T02060167 53004

TAF KORD 280833Z 2809/2912 VRB04KT P6SM FEW080 FM281500 22006KT P6SM SCT050

flight Live Traffic

flight_takeoff 127 Departures
flight_land 153 Arrivals

Recent history last 8

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-16 A05DDC NCE → ORD Jul 16, 21:30 UTCJul 17, 01:09 UTC3h 40m - -
2026-06-30 A4943E - Jun 30, 20:50 UTCJul 1, 01:10 UTC4h 20m - -
2026-06-18 AC0B80 NCE → ORD Jun 18, 23:55 UTCJun 19, 02:29 UTC2h 34m - -
2026-06-18 AC0B80 NCE → ORD Jun 18, 23:34 UTCJun 19, 02:23 UTC2h 49m +79m -2m
2026-05-28 A895EB NCE → ORD May 28, 17:06 UTCMay 28, 18:22 UTC1h 16m -234m +1m
2026-05-28 A895EB NCE → ORD May 28, 16:45 UTCMay 28, 18:30 UTC1h 45m - -
2026-05-01 AA2BA5 NCE → ORD May 1, 13:55 UTCMay 1, 15:50 UTC1h 55m - -
2026-04-24 A54299 NCE → ORD Apr 24, 19:40 UTCApr 24, 20:15 UTC35m - -

Performance history

Flights tracked
8
Avg arrival delay
on time
On-time arrival
100% 100% on time
Aircraft used
6

Monthly activity 4 months

Month Flights tracked
July 2026 1
June 2026 3
May 2026 3
April 2026 1

UAL3857 frequently asked

Where does flight UAL3857 fly?
UAL3857 (United Airlines) flies from NCE to ORD. View the full route page.
How long is flight UAL3857?
Based on observed flights, UAL3857 takes on average 2h 22m from takeoff to landing.
How often does UAL3857 fly?
UAL3857 has been observed flying several times a week in our tracking data. We've recorded 8 flights under this callsign.
Is flight UAL3857 usually on time?
Across recent flights, UAL3857 arrives 0 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL3857?
UAL3857 has been operated by 6 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL3857 live?
Yes. When UAL3857 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.