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
02:23 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
280° / 7 kt
Visibility
10 SM
Ceiling
FEW 10,000 ft
Temp / Dew
13°C / 9°C
Altimeter
29.80 inHg

Obs: 2026-05-30T07:53:00.000Z

Raw METAR / TAF 
METAR KDEN 300753Z 28007KT 10SM FEW100 13/09 A2980 RMK AO2 SLP017 T01280089

TAF KDEN 300538Z 3006/3112 VRB06KT P6SM FEW100 SCT200 FM300900 25006KT P6SM FEW100 SCT200 FM301400 28009KT P6SM SCT180 FM302100 33010KT P6SM VCSH SCT100 PROB30 3021/3101 VRB15G25KT -SHRA FM310300 27013KT P6SM FEW080 SCT100 FM310700 23011KT P6SM FEW100 SCT200

flight Live Traffic

flight_takeoff 219 Departures
flight_land 151 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
01:23 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
280° / 9 kt
Visibility
10 SM
Ceiling
OVC 1,000 ft
Temp / Dew
13°C / 11°C
Altimeter
30.11 inHg

Obs: 2026-05-30T07:56:00.000Z

Raw METAR / TAF 
METAR KSFO 300756Z 28009KT 10SM OVC010 13/11 A3011 RMK AO2 SLP196 T01280106 401720122

TAF KSFO 300520Z 3006/3112 26009KT P6SM OVC008 FM301000 27006KT P6SM OVC012 FM301800 28012KT P6SM SKC FM302300 27022KT P6SM SKC FM310600 28012KT P6SM SKC

flight Live Traffic

flight_takeoff 294 Departures
flight_land 254 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 A8B75F DEN → SFO May 29, 11:25 UTCMay 29, 19:55 UTC8h 30m - -
2026-05-28 A92DFC DEN → SFO May 28, 11:15 UTCMay 28, 14:15 UTC3h 0m - -
2026-05-28 A92DFC DEN → SFO May 28, 11:22 UTCMay 28, 20:05 UTC8h 43m +27m +5m
2026-05-27 A92DFC DEN → SFO May 27, 11:25 UTCMay 27, 20:00 UTC8h 35m - -
2026-05-26 A8B75A DEN → SFO May 26, 11:20 UTCMay 26, 20:00 UTC8h 40m - -
2026-05-25 AA44AC DEN → SFO May 25, 11:25 UTCMay 25, 19:59 UTC8h 35m - -
2026-05-25 AA44AC DEN → SFO May 25, 11:22 UTCMay 25, 19:56 UTC8h 34m +27m -21m
2026-05-24 AA93C9 DEN → SFO May 24, 11:20 UTCMay 24, 20:05 UTC8h 45m - -
2026-05-23 AA44AC DEN → SFO May 23, 11:20 UTCMay 23, 20:35 UTC9h 15m - -
2026-05-23 AA44AC DEN → SFO May 23, 11:22 UTCMay 23, 20:29 UTC9h 7m +27m -7m
2026-05-22 AA44AC DEN → SFO May 22, 11:20 UTCMay 22, 20:10 UTC8h 51m - -
2026-05-21 AA44D0 DEN → SFO May 21, 14:10 UTCMay 21, 23:25 UTC9h 15m - -
2026-05-20 AA44AC DEN → SFO May 20, 12:15 UTCMay 20, 21:10 UTC8h 55m - -
2026-05-20 AA44AC DEN → SFO May 20, 12:07 UTCMay 20, 21:16 UTC9h 9m +72m +22m
2026-05-19 A7A08A DEN → SFO May 19, 11:15 UTCMay 19, 20:20 UTC9h 5m - -
2026-05-18 A7A08A DEN → SFO May 18, 11:30 UTCMay 18, 20:20 UTC8h 49m - -
2026-05-17 A92DDF DEN → SFO May 17, 11:25 UTCMay 17, 20:35 UTC9h 10m - -
2026-05-17 A92DDF DEN → SFO May 17, 11:22 UTCMay 17, 20:28 UTC9h 6m +27m -9m
2026-05-16 AA44CD DEN → SFO May 16, 20:40 UTCMay 16, 20:45 UTC5m - -
2026-05-16 AA44CD DEN → SFO May 16, 11:21 UTCMay 16, 14:31 UTC3h 10m - -
2026-05-16 AA44CD DEN → SFO May 16, 11:22 UTCMay 16, 20:25 UTC9h 3m +27m -11m
2026-05-15 A9067B DEN → SFO May 15, 12:30 UTCMay 15, 21:40 UTC9h 9m - -
2026-05-14 AA44AD DEN → SFO May 14, 11:35 UTCMay 14, 21:00 UTC9h 25m - -
2026-05-13 AA44AD DEN → SFO May 13, 11:15 UTCMay 13, 13:35 UTC2h 20m - -
2026-05-13 AA44AD DEN → SFO May 13, 11:22 UTCMay 13, 20:26 UTC9h 4m +27m +4m
2026-05-12 A92DFC DEN → SFO May 12, 11:15 UTCMay 12, 20:20 UTC9h 5m - -
2026-05-12 A92DFC DEN → SFO May 12, 11:22 UTCMay 12, 20:09 UTC8h 47m +27m -6m
2026-05-10 A92DFC DEN → SFO May 10, 11:50 UTCMay 10, 20:40 UTC8h 50m - -
2026-05-09 AA44CD DEN → SFO May 9, 11:15 UTCMay 9, 13:15 UTC2h 0m - -
2026-05-09 AA44CD DEN → SFO May 9, 11:22 UTCMay 9, 19:50 UTC8h 28m +27m -29m

Performance history

Flights tracked
83 showing last 30
Avg arrival delay
-6m
On-time arrival
89% 89% on time
Aircraft used
11

Monthly activity 2 months

Month Flights tracked
May 2026 42
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 47m 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 83 flights under this callsign.
Is flight UAL509 usually on time?
Across recent flights, UAL509 arrives 6 minutes early on average. 89% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL509?
UAL509 has been operated by 11 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.