Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL8121

Operated by United Airlines

Live map

Live map filtered to UAL8121. Shown when the flight is currently airborne.

Route airports View route page →

Departure

CDG LFPG VFR

Charles de Gaulle International Airport

Paris (Roissy-en-France, Val-d'Oise), FR

Local time
02:06 GMT+2
Timezone
Europe/Paris
Type
Large Airport
Elevation
392 ft
Coordinates
49.0090, 2.5541

cloud Weather

Wind
10° / 5 kt
Visibility
6 SM
Ceiling
CAVOK
Temp / Dew
24°C / 17°C
Altimeter
30.15 inHg

Obs: 2026-05-30T00:00:00.000Z

Raw METAR / TAF 
METAR LFPG 300000Z 01005KT CAVOK 24/17 Q1021 NOSIG

TAF LFPG 292300Z 3000/3106 02005KT CAVOK TX33/3015Z TN16/3106Z PROB40 TEMPO 3015/3022 VRB20G35KT 2000 TSRAGR BKN075CB

flight Live Traffic

flight_takeoff 20 Departures
flight_land 43 Arrivals

Arrival

YUL CYUL VFR

Montreal / Pierre Elliott Trudeau International Airport

Montréal, CA

Local time
20:06 EDT
Timezone
America/Toronto
Type
Large Airport
Elevation
118 ft
Coordinates
45.4678, -73.7423

cloud Weather

Wind
100° / 5 kt
Visibility
30 SM
Ceiling
FEW 9,000 ft, SCT 14,000 ft, BKN 25,000 ft
Temp / Dew
13°C / 10°C
Altimeter
29.62 inHg

Obs: 2026-05-29T23:00:00.000Z

Raw METAR / TAF 
METAR CYUL 292300Z 10005KT 30SM FEW090 SCT140 BKN250 13/10 A2962 RMK AC1AC3CI1 PRESRR SLP032

TAF CYUL 292340Z 3000/3106 VRB03KT P6SM SCT015 BKN050 TEMPO 3000/3001 P6SM VCTS -SHRA BKN015 BKN050CB FM300100 35010KT P6SM SCT015 OVC025 TEMPO 3001/3009 5SM -SHRA BR BKN008 OVC015 BECMG 3001/3002 02020G40KT FM300900 03015G30KT P6SM BKN030 BKN060 FM301400 03015G25KT P6SM SCT040 BECMG 3018/3020 04007KT FM302100 03007KT P6SM FEW040 BECMG 3022/3024 24005KT RMK NXT FCST BY 300300Z

flight Live Traffic

flight_takeoff 50 Departures
flight_land 35 Arrivals

Recent history last 24

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-28 A2B8C5 CDG → YUL May 28, 01:10 UTCMay 28, 03:10 UTC2h 0m - -
2026-05-26 A2BB89 CDG → YUL May 26, 03:35 UTCMay 26, 04:20 UTC45m - -
2026-05-25 A2DFFE CDG → YUL May 25, 18:20 UTCMay 25, 19:44 UTC1h 25m - -
2026-05-20 A0B81D CDG → YUL May 20, 21:10 UTCMay 20, 23:15 UTC2h 5m - -
2026-05-18 A05A25 CDG → YUL May 18, 20:15 UTCMay 18, 23:15 UTC3h 0m - -
2026-05-16 A52C4F CDG → YUL May 16, 04:40 UTCMay 16, 05:15 UTC35m - -
2026-05-11 A448D5 CDG → YUL May 11, 16:35 UTCMay 11, 18:10 UTC1h 35m - -
2026-05-09 A4DAB6 CDG → YUL May 9, 21:55 UTCMay 9, 23:35 UTC1h 40m - -
2026-05-09 A4DAB6 CDG → YUL May 9, 21:39 UTCMay 9, 23:18 UTC1h 39m +24m -6m
2026-05-08 A5CF66 CDG → YUL May 8, 21:45 UTCMay 8, 22:50 UTC1h 5m - -
2026-05-07 A0B823 CDG → YUL May 7, 21:00 UTCMay 7, 23:05 UTC2h 4m - -
2026-05-05 A0B7B8 CDG → YUL May 5, 20:50 UTCMay 5, 23:20 UTC2h 30m - -
2026-05-05 A0B7B8 CDG → YUL May 5, 20:32 UTCMay 5, 23:09 UTC2h 37m +47m on time
2026-04-30 A24529 CDG → YUL Apr 30, 20:45 UTCApr 30, 22:45 UTC2h 0m - -
2026-04-30 A24529 CDG → YUL Apr 30, 20:30 UTCApr 30, 22:45 UTC2h 15m +45m +5m
2026-04-20 AAA58B CDG → YUL Apr 20, 21:33 UTCApr 20, 23:00 UTC1h 27m +33m -1m
2026-04-20 AAA58B CDG → YUL Apr 20, 21:20 UTCApr 20, 23:00 UTC1h 40m - -
2026-04-18 A836FB CDG → YUL Apr 18, 16:40 UTCApr 18, 18:55 UTC2h 15m - -
2026-04-17 A0B88F CDG → YUL Apr 17, 21:25 UTCApr 17, 23:20 UTC1h 55m - -
2026-04-17 A0B88F CDG → YUL Apr 17, 19:25 UTCApr 17, 21:20 UTC1h 55m - -
2026-04-17 A0B88F CDG → YUL Apr 17, 19:05 UTCApr 17, 19:20 UTC15m - -
2026-04-15 A44565 CDG → YUL Apr 15, 17:05 UTCApr 15, 18:20 UTC1h 15m - -
2026-04-14 A94B51 CDG → YUL Apr 14, 16:50 UTCApr 14, 18:40 UTC1h 50m - -
2026-04-14 A94B51 CDG → YUL Apr 14, 16:28 UTCApr 14, 18:36 UTC2h 8m +18m -10m

Performance history

Flights tracked
24
Avg arrival delay
-2m
On-time arrival
100% 100% on time
Aircraft used
17

Monthly activity 2 months

Month Flights tracked
May 2026 13
April 2026 11

UAL8121 frequently asked

Where does flight UAL8121 fly?
UAL8121 (United Airlines) flies from CDG to YUL. View the full route page.
How long is flight UAL8121?
Based on observed flights, UAL8121 takes on average 1h 45m from takeoff to landing.
How often does UAL8121 fly?
UAL8121 has been observed flying several times a week in our tracking data. We've recorded 24 flights under this callsign.
Is flight UAL8121 usually on time?
Across recent flights, UAL8121 arrives 2 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL8121?
UAL8121 has been operated by 17 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL8121 live?
Yes. When UAL8121 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.