Apparatus

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flight_takeoff Flight

UAL3866

Live map

Live map filtered to UAL3866. Shown when the flight is currently airborne.

Route airports View route page →

Departure

ORD KORD VFR

Chicago O'Hare International Airport

Chicago, US

Local time
11:51 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
680 ft
Coordinates
41.9786, -87.9048

cloud Weather

Wind
230° / 13G20 kt
Visibility
10 SM
Ceiling
SCT 25,000 ft
Temp / Dew
25°C / 16°C
Altimeter
29.86 inHg

Obs: 2026-10-12T15:51:00.000Z

Raw METAR / TAF 
METAR KORD 121551Z 23013G20KT 10SM SCT250 25/16 A2986 RMK AO2 SLP109 T02500156 $

TAF KORD 121500Z 1215/1318 22011KT P6SM BKN250 FM121700 22014G24KT P6SM SCT250 FM122300 21012KT P6SM FEW120 FM130300 23011KT P6SM FEW100 WS015/27045KT FM131000 26010KT P6SM FEW200

flight Live Traffic

flight_takeoff 477 Departures
flight_land 409 Arrivals

Arrival

ORD KORD VFR

Chicago O'Hare International Airport

Chicago, US

Local time
11:51 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
680 ft
Coordinates
41.9786, -87.9048

cloud Weather

Wind
230° / 13G20 kt
Visibility
10 SM
Ceiling
SCT 25,000 ft
Temp / Dew
25°C / 16°C
Altimeter
29.86 inHg

Obs: 2026-10-12T15:51:00.000Z

Raw METAR / TAF 
METAR KORD 121551Z 23013G20KT 10SM SCT250 25/16 A2986 RMK AO2 SLP109 T02500156 $

TAF KORD 121500Z 1215/1318 22011KT P6SM BKN250 FM121700 22014G24KT P6SM SCT250 FM122300 21012KT P6SM FEW120 FM130300 23011KT P6SM FEW100 WS015/27045KT FM131000 26010KT P6SM FEW200

flight Live Traffic

flight_takeoff 477 Departures
flight_land 409 Arrivals

Recent history last 10

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-02 A6EDE5 ORD → ORD Jul 2, 15:15 UTCJul 2, 15:50 UTC35m - -
2026-06-26 A05628 ORD → ORD Jun 26, 00:24 UTCJun 26, 01:50 UTC1h 25m - -
2026-06-25 A05628 ORD → ORD Jun 25, 23:53 UTCJun 26, 02:11 UTC2h 18m +143m +11m
2026-06-21 A05628 RFD → ORD Jun 21, 16:04 UTCJun 21, 17:10 UTC1h 5m - -
2026-06-13 A2B10C RFD → ORD Jun 13, 14:45 UTCJun 13, 16:05 UTC1h 20m - -
2026-05-31 A913D6 RFD → ORD May 31, 19:55 UTCMay 31, 20:50 UTC55m +85m +96m
2026-05-31 A913D6 RFD → ORD May 31, 19:55 UTCMay 31, 20:50 UTC55m - -
2026-05-25 A0E751 RFD → ORD May 25, 17:10 UTCMay 25, 19:25 UTC2h 15m - -
2026-05-25 A0E751 RFD → ORD May 25, 16:46 UTCMay 25, 18:54 UTC2h 8m +106m +13m
2026-05-21 A1BEFC RFD → ORD May 21, 07:00 UTCMay 21, 07:40 UTC40m - -

Performance history

Flights tracked
10
Avg arrival delay
+40m
On-time arrival
67% 67% on time
Aircraft used
6

Monthly activity 3 months

Month Flights tracked
July 2026 1
June 2026 4
May 2026 5

UAL3866 frequently asked

Where does flight UAL3866 fly?
UAL3866 flies from ORD to ORD. View the full route page.
How long is flight UAL3866?
Based on observed flights, UAL3866 takes on average 1h 22m from takeoff to landing.
How often does UAL3866 fly?
UAL3866 has been observed flying several times a week in our tracking data. We've recorded 10 flights under this callsign.
Is flight UAL3866 usually on time?
Across recent flights, UAL3866 arrives with an average 40-minute delay. 67% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL3866?
UAL3866 has been operated by 6 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL3866 live?
Yes. When UAL3866 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.