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
18:42 GMT+2
Timezone
Europe/Paris
Type
Large Airport
Elevation
392 ft
Coordinates
49.0090, 2.5541

cloud Weather

Wind
150° / 5 kt
Visibility
6 SM
Ceiling
CAVOK
Temp / Dew
19°C / 7°C
Altimeter
30.35 inHg

Obs: 2026-10-14T16:30:00.000Z

Raw METAR / TAF 
METAR LFPG 141630Z 15005KT CAVOK 19/07 Q1028 NOSIG

TAF LFPG 141100Z 1412/1518 20010KT CAVOK TX23/1514Z TN09/1505Z BECMG 1416/1417 14010KT TEMPO 1511/1516 20010KT

flight Live Traffic

flight_takeoff 20 Departures
flight_land 7 Arrivals

Arrival

YUL CYUL MVFR

Montreal / Pierre Elliott Trudeau International Airport

Montréal, CA

Local time
12:42 EDT
Timezone
America/Toronto
Type
Large Airport
Elevation
118 ft
Coordinates
45.4678, -73.7423

cloud Weather

Wind
280° / 11G16 kt
Visibility
15 SM
Ceiling
SCT 1,500 ft, BKN 2,000 ft, OVC 4,000 ft
Temp / Dew
11°C / 8°C
Altimeter
29.85 inHg

Obs: 2026-10-14T16:30:00.000Z

Raw METAR / TAF 
SPECI CYUL 141630Z 28011G16KT 15SM SCT015 BKN020 OVC040 11/08 A2985 RMK SC3SC3SC2 SLP111

TAF CYUL 141440Z 1415/1518 27011KT P6SM SCT009 OVC015 TEMPO 1415/1417 BKN009 OVC015 FM141700 27013KT P6SM SCT008 OVC020 TEMPO 1417/1419 SCT020 OVC030 FM141900 28015KT P6SM OVC025 TEMPO 1419/1503 OVC020 BECMG 1419/1421 29012KT FM150500 30008KT P6SM BKN030 FM151100 34007KT P6SM FEW020 RMK NXT FCST BY 141800Z

flight Live Traffic

flight_takeoff 29 Departures
flight_land 39 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-22 A75966 CDG → YUL Jul 22, 23:40 UTCJul 23, 02:40 UTC3h 0m - -
2026-07-22 A75966 CDG → YUL Jul 22, 22:32 UTCJul 23, 02:38 UTC4h 6m +32m -76m
2026-07-14 A1235B - Jul 14, 00:30 UTCJul 14, 02:00 UTC1h 30m - -
2026-07-12 A4491C - Jul 12, 04:30 UTCJul 12, 09:40 UTC5h 10m - -
2026-07-12 A4491C SFO → FLL Jul 12, 04:40 UTCJul 12, 09:43 UTC5h 3m +25m -3m
2026-07-11 A8D4D2 - Jul 11, 16:55 UTCJul 11, 18:45 UTC1h 50m - -
2026-07-10 A1239D DEN → YEG Jul 10, 17:59 UTCJul 10, 19:50 UTC1h 51m +36m -12m
2026-07-10 A1239D - Jul 10, 17:50 UTCJul 10, 19:15 UTC1h 25m - -
2026-07-10 AAFDA1 ORD → ATL Jul 10, 02:40 UTCJul 10, 04:15 UTC1h 35m - -
2026-07-06 A0B7FE DEN → RSW Jul 6, 15:55 UTCJul 6, 19:15 UTC3h 20m - -
2026-07-05 A8AD4E SFO → MFR Jul 5, 18:10 UTCJul 5, 19:00 UTC50m - -
2026-07-05 A8AD4E SFO → MFR Jul 5, 18:03 UTCJul 5, 19:00 UTC57m +26m -10m
2026-07-04 A0B7B6 ORD → BOS Jul 4, 00:02 UTCJul 4, 01:38 UTC1h 36m +42m -13m
2026-07-03 A0B7B6 - Jul 3, 23:40 UTCJul 4, 01:40 UTC2h 0m - -
2026-06-25 A76F66 SFO → ORD Jun 25, 19:24 UTCJun 25, 23:19 UTC3h 55m - -
2026-06-23 A55017 DEN → SBA Jun 23, 17:50 UTCJun 23, 19:59 UTC2h 10m - -
2026-06-22 AA7F23 - Jun 22, 18:19 UTCJun 22, 19:14 UTC55m - -
2026-06-22 AA7F23 SFO → ONT Jun 22, 18:06 UTCJun 22, 19:15 UTC1h 9m +26m -7m
2026-06-21 A5954E - Jun 21, 15:44 UTCJun 21, 16:14 UTC30m - -
2026-06-21 A5954E IAH → AUS Jun 21, 15:39 UTCJun 21, 16:14 UTC35m +24m +15m
2026-06-20 A2B7CD - Jun 20, 12:14 UTCJun 20, 17:49 UTC5h 35m - -
2026-06-20 A2B7CD FLL → SFO Jun 20, 12:20 UTCJun 20, 17:42 UTC5h 22m +17m +6m
2026-06-20 A31216 - Jun 20, 01:09 UTCJun 20, 02:24 UTC1h 15m - -
2026-06-18 A5E095 SFO → SEA Jun 18, 18:00 UTCJun 18, 19:35 UTC1h 35m - -
2026-06-18 AB5DD4 SFO → SBP Jun 18, 04:18 UTCJun 18, 04:43 UTC25m +24m +1m
2026-06-18 AB5DD4 SFO → SBP Jun 18, 04:05 UTCJun 18, 04:50 UTC45m - -
2026-06-17 A24CC0 - Jun 17, 19:15 UTCJun 17, 21:55 UTC2h 40m - -
2026-06-14 A7598C CDG → YUL Jun 14, 15:20 UTCJun 14, 19:45 UTC4h 25m - -
2026-06-11 A94B2B CDG → YUL Jun 11, 21:45 UTCJun 11, 23:20 UTC1h 35m - -
2026-06-10 A445A4 CDG → YUL Jun 10, 23:25 UTCJun 11, 00:20 UTC55m - -

Performance history

Flights tracked
60 showing last 30
Avg arrival delay
-11m
On-time arrival
100% 100% on time
Aircraft used
21

Monthly activity 4 months

Month Flights tracked
July 2026 14
June 2026 22
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 2h 16m 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 60 flights under this callsign.
Is flight UAL8121 usually on time?
Across recent flights, UAL8121 arrives 11 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL8121?
UAL8121 has been operated by 21 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.