Apparatus

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flight_takeoff Flight

UAL509

Operated by United Airlines

Live map

Live map filtered to UAL509. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
00:20 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
210° / 6 kt
Visibility
10 SM
Ceiling
SCT 7,500 ft, BKN 9,500 ft, BKN 20,000 ft
Temp / Dew
9°C / -3°C
Altimeter
29.87 inHg

Obs: 2026-04-15T05:53:00.000Z

Raw METAR / TAF 
METAR KDEN 150553Z 21006KT 10SM SCT075 BKN095 BKN200 09/M03 A2987 RMK AO2 WSHFT 0440 SLP074 60000 T00891033 10106 20050 58006

TAF KDEN 150528Z 1506/1612 21011KT P6SM SCT060 BKN090 FM150800 22010KT P6SM FEW090 SCT200 FM151500 25009KT P6SM FEW100 FM152000 30010KT P6SM FEW100 FM160300 21009KT P6SM SCT200

flight Live Traffic

flight_takeoff 181 Departures
flight_land 209 Arrivals

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
23:20 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
270° / 8 kt
Visibility
10 SM
Ceiling
SCT 2,100 ft
Temp / Dew
12°C / 7°C
Altimeter
30.14 inHg

Obs: 2026-04-15T05:56:00.000Z

Raw METAR / TAF 
METAR KSFO 150556Z 27008KT 10SM SCT021 12/07 A3014 RMK AO2 SLP207 T01170072 10150 20117 50002 $

TAF KSFO 150520Z 1506/1612 28012KT P6SM FEW030 FM151400 28014KT P6SM BKN050 FM151900 27018KT P6SM BKN150 FM160400 27015KT P6SM BKN030

flight Live Traffic

flight_takeoff 177 Departures
flight_land 219 Arrivals

Recent history last 6

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-13 AA6C50 DEN → SFO Apr 13, 19:50 UTCApr 13, 20:35 UTC45m - -
2026-04-13 AA6C50 DEN → SFO Apr 13, 18:40 UTCApr 13, 20:10 UTC1h 30m - -
2026-04-13 AA6C50 DEN → SFO Apr 13, 12:20 UTCApr 13, 14:20 UTC2h 0m - -
2026-04-13 AA6C50 DEN → SFO Apr 13, 11:55 UTCApr 13, 14:20 UTC2h 25m - -
2026-04-13 AA6C50 DEN → SFO Apr 13, 11:22 UTCApr 13, 20:40 UTC9h 18m +27m +3m
2026-04-12 AA44D0 DEN → SFO Apr 12, 19:05 UTCApr 12, 20:15 UTC1h 10m - -

Performance history

Flights tracked
6
Avg arrival delay
+3m
On-time arrival
100% 100% on time
Aircraft used
2

Monthly activity 1 month

Month Flights tracked
April 2026 6

UAL509 frequently asked

Where does flight UAL509 fly?
UAL509 (United Airlines) flies from DEN to SFO. View the full route page.
How long is flight UAL509?
Based on observed flights, UAL509 takes on average 2h 51m from takeoff to landing.
How often does UAL509 fly?
UAL509 has been observed flying occasionally in our tracking data. We've recorded 6 flights under this callsign.
Is flight UAL509 usually on time?
Across recent flights, UAL509 arrives with an average 3-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL509?
UAL509 has been operated by 2 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL509 live?
Yes. When UAL509 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.