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flight_takeoff Flight

UAL540

Operated by United Airlines

Live map

Live map filtered to UAL540. Shown when the flight is currently airborne.

Route airports View route page →

Departure

PDX KPDX VFR

Portland International Airport

Portland, US

Local time
02:08 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
31 ft
Coordinates
45.5887, -122.5980

cloud Weather

Wind
320° / 5 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
16°C / 13°C
Altimeter
30.07 inHg

Obs: 2026-08-28T08:53:00.000Z

Raw METAR / TAF 
METAR KPDX 280853Z 32005KT 10SM CLR 16/13 A3007 RMK AO2 SLP180 T01610128 53002 $

TAF KPDX 280849Z 2809/2906 33006KT P6SM SKC FM281200 33003KT P6SM SCT025 BKN035 FM281700 32008KT P6SM FEW050

flight Live Traffic

flight_takeoff 21 Departures
flight_land 22 Arrivals

Arrival

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
03:08 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
180° / 11 kt
Visibility
10 SM
Ceiling
FEW 15,000 ft, SCT 22,000 ft
Temp / Dew
18°C / 9°C
Altimeter
30.17 inHg

Obs: 2026-08-28T08:53:00.000Z

Raw METAR / TAF 
METAR KDEN 280853Z 18011KT 10SM FEW150 SCT220 18/09 A3017 RMK AO2 SLP127 T01830094 56004

TAF KDEN 280855Z 2809/2912 18011KT P6SM FEW100 FEW150 FM281100 23011KT P6SM FEW120 FM281600 VRB06KT P6SM FEW120 FM282100 02008KT P6SM FEW100 SCT120 PROB30 2821/2902 VRB15G25KT -SHRA BKN080 FM290200 VRB06KT P6SM SCT120 BKN220 FM290500 22009KT P6SM FEW120 SCT220

flight Live Traffic

flight_takeoff 99 Departures
flight_land 115 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A24591 PDX → DEN Jul 26, 20:15 UTCJul 26, 22:15 UTC2h 0m - -
2026-07-26 A6EDA1 PDX → DEN Jul 26, 02:20 UTCJul 26, 04:10 UTC1h 50m - -
2026-07-25 AD22E1 PDX → DEN Jul 25, 20:30 UTCJul 25, 22:15 UTC1h 45m - -
2026-07-25 AD22E1 PDX → DEN Jul 25, 20:30 UTCJul 25, 22:33 UTC2h 3m +47m -6m
2026-07-25 A0B820 PDX → DEN Jul 25, 01:50 UTCJul 25, 03:40 UTC1h 50m - -
2026-07-24 AA07F9 PDX → DEN Jul 24, 20:35 UTCJul 24, 22:35 UTC2h 0m - -
2026-07-24 A3D302 PDX → DEN Jul 24, 02:25 UTCJul 24, 04:20 UTC1h 55m - -
2026-07-23 A0B7B7 PDX → DEN Jul 23, 20:10 UTCJul 23, 22:15 UTC2h 5m - -
2026-07-23 A0B7FE PDX → DEN Jul 23, 02:10 UTCJul 23, 03:00 UTC50m - -
2026-07-22 A0B7FE PDX → DEN Jul 22, 20:05 UTCJul 22, 23:15 UTC3h 10m - -
2026-07-22 A0B820 PDX → DEN Jul 22, 01:45 UTCJul 22, 03:35 UTC1h 50m - -
2026-07-21 A24508 PDX → DEN Jul 21, 20:20 UTCJul 21, 22:35 UTC2h 15m - -
2026-07-21 A6ED61 PDX → DEN Jul 21, 01:50 UTCJul 21, 03:50 UTC2h 0m - -
2026-07-20 A0B7B8 PDX → DEN Jul 20, 21:25 UTCJul 20, 23:35 UTC2h 10m - -
2026-07-20 A6EDA7 PDX → DEN Jul 20, 02:25 UTCJul 20, 04:20 UTC1h 55m - -
2026-07-19 A24526 PDX → DEN Jul 19, 20:30 UTCJul 19, 22:40 UTC2h 10m - -
2026-07-19 A0B7DE PDX → DEN Jul 19, 01:40 UTCJul 19, 03:25 UTC1h 45m - -
2026-07-18 A0B7B8 PDX → DEN Jul 18, 20:50 UTCJul 18, 22:55 UTC2h 5m - -
2026-07-18 A0B7B6 PDX → DEN Jul 18, 01:50 UTCJul 18, 04:06 UTC2h 16m +30m +26m
2026-07-18 A0B7B6 PDX → DEN Jul 18, 02:19 UTCJul 18, 04:10 UTC1h 51m - -
2026-07-17 A245FB PDX → DEN Jul 17, 20:15 UTCJul 17, 22:25 UTC2h 10m - -
2026-07-17 A0B886 PDX → DEN Jul 17, 02:20 UTCJul 17, 04:04 UTC1h 45m - -
2026-07-17 A0B886 PDX → DEN Jul 17, 02:09 UTCJul 17, 04:03 UTC1h 54m +49m +23m
2026-07-16 A0B866 PDX → DEN Jul 16, 20:55 UTCJul 16, 22:35 UTC1h 40m - -
2026-07-16 A0B866 - Jul 16, 20:29 UTCJul 16, 21:30 UTC1h 0m - -
2026-07-16 A0B7FA DEN → SAN Jul 16, 01:45 UTCJul 16, 03:40 UTC1h 55m - -
2026-07-15 A0B7BB - Jul 15, 20:20 UTCJul 15, 22:25 UTC2h 5m - -
2026-07-15 A0B889 DEN → SAN Jul 15, 01:50 UTCJul 15, 04:00 UTC2h 10m - -
2026-07-14 A56050 SFO → DEN Jul 14, 21:20 UTCJul 14, 23:30 UTC2h 9m - -
2026-07-14 A24508 DEN → SAN Jul 14, 03:05 UTCJul 14, 05:00 UTC1h 55m - -

Performance history

Flights tracked
253 showing last 30
Avg arrival delay
+14m
On-time arrival
33% 33% on time
Aircraft used
22

Monthly activity 4 months

Month Flights tracked
July 2026 59
June 2026 89
May 2026 79
April 2026 26

UAL540 frequently asked

Where does flight UAL540 fly?
UAL540 (United Airlines) flies from PDX to DEN. View the full route page.
How long is flight UAL540?
Based on observed flights, UAL540 takes on average 1h 57m from takeoff to landing.
How often does UAL540 fly?
UAL540 has been observed flying several times a week in our tracking data. We've recorded 253 flights under this callsign.
Is flight UAL540 usually on time?
Across recent flights, UAL540 arrives with an average 14-minute delay. 33% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL540?
UAL540 has been operated by 22 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL540 live?
Yes. When UAL540 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.