Apparatus

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flight_takeoff Flight

UAL451

Operated by United Airlines

Live map

Live map filtered to UAL451. Shown when the flight is currently airborne.

Route airports View route page →

Departure

YYC CYYC VFR

Calgary International Airport

Calgary, CA

Local time
03:09 MDT
Timezone
America/Edmonton
Type
Large Airport
Elevation
3,557 ft
Coordinates
51.1188, -114.0099

cloud Weather

Wind
210° / 4 kt
Visibility
15 SM
Ceiling
SKC
Temp / Dew
2°C / -6°C
Altimeter
29.48 inHg

Obs: 2026-04-15T08:05:00.000Z

Raw METAR / TAF 
SPECI CYYC 150805Z 21004KT 15SM SKC 02/M06 A2948 RMK SLP006

TAF CYYC 150840Z 1509/1606 VRB03KT P6SM SKC BECMG 1514/1516 14007KT FM151900 10007KT P6SM BKN100 BKN200 FM152100 08010KT P6SM BKN060 BKN120 TEMPO 1521/1524 P6SM -SHRA BKN030 OVC060 FM160000 04008KT P6SM -RA BKN030 OVC060 TEMPO 1600/1605 2SM -SNRA BR BKN012 OVC030 BECMG 1601/1603 36020G30KT FM160500 35015G25KT 3/4SM -SN VV008 TEMPO 1605/1606 3SM -SN OVC012 RMK NXT FCST BY 151200Z

flight Live Traffic

flight_takeoff 9 Departures
flight_land 3 Arrivals

Arrival

ORD KORD VFR

Chicago O'Hare International Airport

Chicago, US

Local time
04:09 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
680 ft
Coordinates
41.9786, -87.9048

cloud Weather

Wind
140° / 6 kt
Visibility
8 SM
Ceiling
BKN 4,000 ft, OVC 25,000 ft
Temp / Dew
18°C / 17°C
Altimeter
29.71 inHg

Obs: 2026-04-15T08:51:00.000Z

Raw METAR / TAF 
METAR KORD 150851Z 14006KT 8SM BKN040 OVC250 18/17 A2971 RMK AO2 LTG DSNT N AND NW SLP056 OCNL LTGIC DSNT N CB DSNT N MOV E 60000 T01780167 58002

TAF KORD 150808Z 1508/1612 14007KT P6SM -SHRA VCTS BKN040CB TEMPO 1508/1511 VRB10G20KT 2SM TSRA OVC035CB 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 188 Departures
flight_land 209 Arrivals

Recent history last 4

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-14 A2C35A YYC → ORD Apr 14, 10:35 UTCApr 14, 11:05 UTC30m - -
2026-04-13 A49F89 YYC → ORD Apr 13, 12:20 UTCApr 13, 12:30 UTC10m - -
2026-04-13 A49F89 YYC → ORD Apr 13, 11:55 UTCApr 13, 12:30 UTC35m - -
2026-04-13 A49F89 YYC → ORD Apr 13, 10:49 UTCApr 13, 12:43 UTC1h 54m +1459m +9m

Performance history

Flights tracked
4
Avg arrival delay
+9m
On-time arrival
100% 100% on time
Aircraft used
2

Monthly activity 1 month

Month Flights tracked
April 2026 4

UAL451 frequently asked

Where does flight UAL451 fly?
UAL451 (United Airlines) flies from YYC to ORD. View the full route page.
How long is flight UAL451?
Based on observed flights, UAL451 takes on average 47m from takeoff to landing.
How often does UAL451 fly?
UAL451 has been observed flying occasionally in our tracking data. We've recorded 4 flights under this callsign.
Is flight UAL451 usually on time?
Across recent flights, UAL451 arrives with an average 9-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL451?
UAL451 has been operated by 2 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL451 live?
Yes. When UAL451 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.