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
11:58 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
270° / 6 kt
Visibility
10 SM
Ceiling
FEW 10,000 ft, SCT 15,000 ft, SCT 22,000 ft
Temp / Dew
31°C / 7°C
Altimeter
30.18 inHg

Obs: 2026-08-28T16:53:00.000Z

Raw METAR / TAF 
METAR KDEN 281653Z 27006KT 10SM FEW100 SCT150 SCT220 31/07 A3018 RMK AO2 SLP131 T03060072

TAF KDEN 281722Z 2818/2924 26006KT P6SM FEW100 SCT150 FM282100 33008KT P6SM FEW100 SCT120 TEMPO 2821/2824 VRB15G35KT -SHRA BKN080 FM290000 01009KT P6SM FEW100 BKN120 PROB30 2900/2902 VRB15G35KT -SHRA BKN080 FM290200 16006KT P6SM SCT120 BKN220 FM290500 22009KT P6SM FEW120 SCT220 FM291600 25007KT P6SM FEW110 SCT200 FM291900 25010KT P6SM VCSH SCT100 BKN150 PROB30 2920/2924 VRB20G35KT -TSRA BKN080CB

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
10:58 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
310° / 9 kt
Visibility
10 SM
Ceiling
FEW 400 ft, BKN 12,000 ft, OVC 20,000 ft
Temp / Dew
16°C / 14°C
Altimeter
30.01 inHg

Obs: 2026-08-28T16:56:00.000Z

Raw METAR / TAF 
METAR KSFO 281656Z 31009KT 10SM FEW004 BKN120 OVC200 16/14 A3001 RMK AO2 SLP163 T01610139

TAF KSFO 281739Z 2818/2924 30012KT P6SM VCSH BKN120 FM282000 29016KT P6SM VCSH BKN100 FM290700 29010KT P6SM FEW012 FM291000 29008KT P6SM SCT012 FM291800 29015KT P6SM FEW015

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A8B75F DEN → SFO Jul 26, 11:35 UTCJul 26, 11:45 UTC10m - -
2026-07-26 A8B75F DEN → SFO Jul 26, 11:22 UTCJul 26, 20:41 UTC9h 19m +27m -2m
2026-07-25 AA44CF DEN → SFO Jul 25, 12:25 UTCJul 25, 21:05 UTC8h 40m - -
2026-07-24 AA93C9 DEN → SFO Jul 24, 11:30 UTCJul 24, 20:10 UTC8h 40m - -
2026-07-23 A8DEE0 DEN → SFO Jul 23, 12:20 UTCJul 23, 20:50 UTC8h 30m - -
2026-07-23 A8DEE0 DEN → SFO Jul 23, 11:51 UTCJul 23, 20:44 UTC8h 53m +56m -28m
2026-07-22 AA44AD - Jul 22, 11:50 UTCJul 22, 20:35 UTC8h 45m - -
2026-07-21 AA93C9 - Jul 21, 12:15 UTCJul 21, 14:45 UTC2h 30m - -
2026-07-21 AA93C9 FCO → EWR Jul 21, 11:22 UTCJul 21, 21:16 UTC9h 54m +27m +7m
2026-07-20 A8DEDA - Jul 20, 12:55 UTCJul 20, 21:30 UTC8h 35m - -
2026-07-18 A8B75F - Jul 18, 11:40 UTCJul 18, 20:30 UTC8h 50m - -
2026-07-18 A8B75F FCO → EWR Jul 18, 11:52 UTCJul 18, 20:25 UTC8h 33m +57m +4m
2026-07-17 A92DFC - Jul 17, 11:55 UTCJul 17, 13:00 UTC1h 5m - -
2026-07-17 A92DFC FCO → EWR Jul 17, 11:22 UTCJul 17, 21:00 UTC9h 38m +27m -4m
2026-07-17 A92DFC FCO → EWR Jul 17, 11:22 UTCJul 17, 20:51 UTC9h 29m +27m -13m
2026-07-16 A92DFC - Jul 16, 11:45 UTCJul 16, 20:49 UTC9h 5m - -
2026-07-15 A7A08A - Jul 15, 11:15 UTCJul 15, 20:15 UTC9h 0m - -
2026-07-14 AA44AD - Jul 14, 11:40 UTCJul 14, 20:30 UTC8h 50m - -
2026-07-14 AA44AD FCO → EWR Jul 14, 11:22 UTCJul 14, 20:28 UTC9h 6m +27m -1m
2026-07-13 AA44AC - Jul 13, 11:10 UTCJul 13, 20:15 UTC9h 5m - -
2026-07-12 AA93C9 - Jul 12, 11:40 UTCJul 12, 20:10 UTC8h 30m - -
2026-07-12 AA93C9 FCO → EWR Jul 12, 11:22 UTCJul 12, 20:15 UTC8h 53m +27m -10m
2026-07-11 AA44D0 - Jul 11, 11:40 UTCJul 11, 12:00 UTC20m - -
2026-07-11 AA44D0 FCO → EWR Jul 11, 11:22 UTCJul 11, 20:30 UTC9h 8m +27m -2m
2026-07-10 AA44D0 - Jul 10, 11:20 UTCJul 10, 20:35 UTC9h 15m - -
2026-07-09 A92DFC - Jul 9, 11:25 UTCJul 9, 20:30 UTC9h 5m - -
2026-07-08 A8F77C DEN → SFO Jul 8, 16:20 UTCJul 8, 17:00 UTC40m - -
2026-07-08 A8F77C FCO → EWR Jul 8, 15:57 UTCJul 9, 00:46 UTC8h 49m +302m -4m
2026-07-08 A8F77C FCO → EWR Jul 8, 15:57 UTCJul 9, 00:42 UTC8h 45m +302m -8m
2026-07-07 AA44CD DEN → SFO Jul 7, 16:05 UTCJul 8, 00:45 UTC8h 40m - -

Performance history

Flights tracked
169 showing last 30
Avg arrival delay
-6m
On-time arrival
100% 100% on time
Aircraft used
12

Monthly activity 4 months

Month Flights tracked
July 2026 35
June 2026 48
May 2026 45
April 2026 41

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 7h 37m from takeoff to landing.
How often does UAL509 fly?
UAL509 has been observed flying several times a week in our tracking data. We've recorded 169 flights under this callsign.
Is flight UAL509 usually on time?
Across recent flights, UAL509 arrives 6 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL509?
UAL509 has been operated by 12 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.