Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL644

Operated by UAL

Live map

Live map filtered to UAL644. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
14:53 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
220° / 5 kt
Visibility
10 SM
Ceiling
FEW 10,000 ft, SCT 14,000 ft, BKN 22,000 ft
Temp / Dew
32°C / 4°C
Altimeter
30.12 inHg

Obs: 2026-08-28T19:53:00.000Z

Raw METAR / TAF 
METAR KDEN 281953Z 22005KT 10SM FEW100 SCT140 BKN220 33/04 A3012 RMK AO2 SLP110 T032330039

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

warning FAA Advisories

  • Ground Delay: thunderstorms (avg 21 minutes)

flight Live Traffic

flight_takeoff 300 Departures
flight_land 290 Arrivals

Arrival

PDX KPDX VFR

Portland International Airport

Portland, US

Local time
13:53 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
31 ft
Coordinates
45.5887, -122.5980

cloud Weather

Wind
300° / 8G16 kt
Visibility
10 SM
Ceiling
SCT 3,800 ft
Temp / Dew
22°C / 11°C
Altimeter
30.05 inHg

Obs: 2026-08-28T19:53:00.000Z

Raw METAR / TAF 
METAR KPDX 281953Z 30008G16KT 10SM SCT038 22/11 A3005 RMK AO2 SLP175 T02220106 $

TAF KPDX 281759Z 2818/2918 33005KT P6SM SCT035 SCT250 TEMPO 2818/2820 SCT025 BKN035 FM282200 31009KT P6SM SCT250 FM290800 VRB04KT P6SM SCT050 FM291200 20005KT P6SM VCSH BKN040

flight Live Traffic

flight_takeoff 69 Departures
flight_land 66 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A494C5 LAX → EWR Jul 26, 17:45 UTCJul 26, 20:00 UTC2h 15m - -
2026-07-26 A43EA3 LAX → EWR Jul 26, 14:05 UTCJul 26, 15:35 UTC1h 30m - -
2026-07-25 A8D46A LAX → EWR Jul 25, 17:53 UTCJul 25, 19:56 UTC2h 3m +37m -16m
2026-07-25 A8D46A LAX → EWR Jul 25, 17:50 UTCJul 25, 20:00 UTC2h 10m - -
2026-07-25 A12378 LAX → EWR Jul 25, 14:05 UTCJul 25, 15:40 UTC1h 35m - -
2026-07-24 A8D4F6 LAX → EWR Jul 24, 17:49 UTCJul 24, 19:57 UTC2h 8m +22m -10m
2026-07-24 A8D4F6 LAX → EWR Jul 24, 17:50 UTCJul 24, 20:00 UTC2h 10m - -
2026-07-24 A9D59F LAX → EWR Jul 24, 14:05 UTCJul 24, 15:45 UTC1h 40m - -
2026-07-24 A9D59F LAX → EWR Jul 24, 14:05 UTCJul 24, 15:49 UTC1h 44m +20m -18m
2026-07-23 A81005 LAX → EWR Jul 23, 17:45 UTCJul 23, 20:00 UTC2h 15m - -
2026-07-23 AA7E79 LAX → EWR Jul 23, 14:05 UTCJul 23, 15:30 UTC1h 25m +20m -4m
2026-07-23 AA7E79 LAX → EWR Jul 23, 14:05 UTCJul 23, 15:35 UTC1h 30m - -
2026-07-22 A41E94 LAX → EWR Jul 22, 17:50 UTCJul 22, 20:00 UTC2h 10m - -
2026-07-22 AC0BC4 LAX → EWR Jul 22, 14:00 UTCJul 22, 15:30 UTC1h 30m - -
2026-07-21 A885F4 LAX → EWR Jul 21, 17:49 UTCJul 21, 19:58 UTC2h 9m +22m -3m
2026-07-21 A885F4 LAX → EWR Jul 21, 17:55 UTCJul 21, 19:00 UTC1h 5m - -
2026-07-21 A23A03 LAX → EWR Jul 21, 14:10 UTCJul 21, 15:40 UTC1h 30m - -
2026-07-20 A46D29 LAX → EWR Jul 20, 17:49 UTCJul 20, 19:50 UTC2h 1m +22m -11m
2026-07-20 A46D29 LAX → EWR Jul 20, 17:45 UTCJul 20, 19:55 UTC2h 10m - -
2026-07-20 AA739D LAX → EWR Jul 20, 14:10 UTCJul 20, 15:45 UTC1h 35m - -
2026-07-19 A91535 LAX → EWR Jul 19, 17:49 UTCJul 19, 19:54 UTC2h 5m +22m -13m
2026-07-19 A91535 LAX → EWR Jul 19, 17:45 UTCJul 19, 20:00 UTC2h 15m - -
2026-07-19 AA7E56 LAX → EWR Jul 19, 14:05 UTCJul 19, 15:35 UTC1h 30m - -
2026-07-18 A8D4D2 LAX → EWR Jul 18, 17:55 UTCJul 18, 20:05 UTC2h 10m - -
2026-07-18 A43E7F LAX → EWR Jul 18, 14:15 UTCJul 18, 15:50 UTC1h 35m - -
2026-07-17 A92362 - Jul 17, 17:50 UTCJul 17, 20:00 UTC2h 10m - -
2026-07-17 A92362 DEN → PDX Jul 17, 17:49 UTCJul 17, 19:55 UTC2h 6m +22m -2m
2026-07-17 A9D59F DFW → DEN Jul 17, 14:24 UTCJul 17, 15:55 UTC1h 30m - -
2026-07-16 A8D489 DEN → PDX Jul 16, 17:45 UTCJul 16, 19:50 UTC2h 5m - -
2026-07-16 A9D626 DFW → DEN Jul 16, 14:10 UTCJul 16, 15:55 UTC1h 45m - -

Performance history

Flights tracked
243 showing last 30
Avg arrival delay
-10m
On-time arrival
100% 100% on time
Aircraft used
21

Monthly activity 4 months

Month Flights tracked
July 2026 63
June 2026 67
May 2026 65
April 2026 48

UAL644 frequently asked

Where does flight UAL644 fly?
UAL644 (UAL) flies from DEN to PDX. View the full route page.
How long is flight UAL644?
Based on observed flights, UAL644 takes on average 1h 52m from takeoff to landing.
How often does UAL644 fly?
UAL644 has been observed flying several times a week in our tracking data. We've recorded 243 flights under this callsign.
Is flight UAL644 usually on time?
Across recent flights, UAL644 arrives 10 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL644?
UAL644 has been operated by 21 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL644 live?
Yes. When UAL644 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.