Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL645

Operated by UAL

Live map

Live map filtered to UAL645. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
21:22 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
210° / 21G30 kt
Visibility
10 SM
Ceiling
FEW 12,000 ft
Temp / Dew
21°C / 1°C
Altimeter
29.83 inHg

Obs: 2026-10-13T02:53:00.000Z

Raw METAR / TAF 
METAR KDEN 130253Z 21021G30KT 10SM FEW120 21/01 A2983 RMK AO2 PK WND 20037/0227 SLP024 T02110011 53009

TAF KDEN 130254Z 1303/1406 21021G30KT P6SM FEW120 FM130400 30010G22KT P6SM FEW100 FM130700 34010KT P6SM FEW020 SCT040 FM131100 01006KT P6SM BKN010 BKN030 TEMPO 1312/1315 5SM BR BKN005 FM131700 04007KT P6SM SCT020 BKN040 FM132000 07010G20KT P6SM FEW040 SCT100 FM140200 05009KT P6SM VCSH SCT050

flight Live Traffic

flight_takeoff 440 Departures
flight_land 387 Arrivals

Arrival

FSD KFSD MVFR

Sioux Falls Regional Airport

Sioux Falls, US

Local time
22:22 CDT
Timezone
America/Chicago
Type
Medium Airport
Elevation
1,429 ft
Coordinates
43.5855, -96.7412

cloud Weather

Wind
300° / 11G19 kt
Visibility
10 SM
Ceiling
FEW 1,200 ft, OVC 2,400 ft
Temp / Dew
11°C / 8°C
Altimeter
29.88 inHg

Obs: 2026-10-13T02:56:00.000Z

Raw METAR / TAF 
METAR KFSD 130256Z 30011G19KT 10SM FEW012 OVC024 11/08 A2988 RMK AO2 SLP121 T01110083 51024

TAF KFSD 130206Z 1302/1324 31014KT P6SM SCT012 OVC025 FM130500 32010G17KT P6SM OVC025 FM131000 34005KT P6SM OVC016 FM131500 35007KT P6SM BKN022 FM131800 35007KT P6SM SCT025

flight Live Traffic

flight_takeoff 11 Departures
flight_land 16 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A44983 LAX → EWR Jul 26, 16:45 UTCJul 26, 20:05 UTC3h 20m - -
2026-07-25 A60814 LAX → EWR Jul 25, 23:40 UTCJul 26, 00:45 UTC1h 5m - -
2026-07-25 A3A0CF LAX → EWR Jul 25, 17:05 UTCJul 25, 20:15 UTC3h 10m - -
2026-07-25 A5CE02 LAX → EWR Jul 25, 00:55 UTCJul 25, 02:05 UTC1h 10m - -
2026-07-24 A28904 LAX → EWR Jul 24, 18:40 UTCJul 24, 21:50 UTC3h 10m - -
2026-07-24 A5954E LAX → EWR Jul 24, 01:00 UTCJul 24, 02:05 UTC1h 5m - -
2026-07-23 A43EED LAX → EWR Jul 23, 16:55 UTCJul 23, 20:10 UTC3h 15m - -
2026-07-23 A53774 LAX → EWR Jul 23, 00:25 UTCJul 23, 01:30 UTC1h 5m - -
2026-07-22 AA56B8 LAX → EWR Jul 22, 17:10 UTCJul 22, 20:20 UTC3h 10m - -
2026-07-21 A59F15 LAX → EWR Jul 21, 23:50 UTCJul 22, 00:55 UTC1h 5m - -
2026-07-21 A39FB1 LAX → EWR Jul 21, 16:55 UTCJul 21, 20:05 UTC3h 10m - -
2026-07-21 A5FCEF LAX → EWR Jul 21, 00:15 UTCJul 21, 01:25 UTC1h 10m - -
2026-07-20 A5FCEF LAX → EWR Jul 20, 23:56 UTCJul 21, 01:27 UTC1h 31m +28m -8m
2026-07-20 A2B060 LAX → EWR Jul 20, 17:20 UTCJul 20, 20:35 UTC3h 15m - -
2026-07-19 A57796 LAX → EWR Jul 19, 23:51 UTCJul 20, 00:52 UTC1h 1m -1014m -3m
2026-07-19 A57796 LAX → EWR Jul 19, 23:50 UTCJul 20, 00:55 UTC1h 5m - -
2026-07-19 AA568E LAX → EWR Jul 19, 17:05 UTCJul 19, 20:15 UTC3h 10m - -
2026-07-19 A61592 LAX → EWR Jul 19, 00:25 UTCJul 19, 01:35 UTC1h 10m - -
2026-07-18 A2B0CD LAX → EWR Jul 18, 17:00 UTCJul 18, 20:05 UTC3h 5m - -
2026-07-18 A5BCCD TPA → DEN Jul 18, 00:01 UTCJul 18, 00:57 UTC56m -1004m -5m
2026-07-17 A5BCCD DEN → FSD Jul 17, 23:55 UTCJul 18, 01:00 UTC1h 5m - -
2026-07-17 A3C847 TPA → DEN Jul 17, 16:59 UTCJul 17, 20:10 UTC3h 10m - -
2026-07-16 A53B2B DEN → FSD Jul 16, 23:44 UTCJul 17, 00:55 UTC1h 10m - -
2026-07-16 A9D5DF TPA → DEN Jul 16, 17:05 UTCJul 16, 20:19 UTC3h 15m - -
2026-07-15 A553CE DEN → FSD Jul 15, 23:50 UTCJul 16, 00:55 UTC1h 5m - -
2026-07-15 A92478 TPA → DEN Jul 15, 16:55 UTCJul 15, 20:00 UTC3h 5m - -
2026-07-15 A5B55F DEN → FSD Jul 15, 00:02 UTCJul 15, 01:09 UTC1h 7m +34m -13m
2026-07-15 A5B55F DEN → FSD Jul 15, 00:05 UTCJul 15, 01:15 UTC1h 10m - -
2026-07-14 A2B0CD TPA → DEN Jul 14, 16:55 UTCJul 14, 20:05 UTC3h 10m - -
2026-07-13 A59F15 DEN → FSD Jul 13, 23:40 UTCJul 14, 00:50 UTC1h 10m - -

Performance history

Flights tracked
245 showing last 30
Avg arrival delay
-7m
On-time arrival
100% 100% on time
Aircraft used
24

Monthly activity 4 months

Month Flights tracked
July 2026 60
June 2026 64
May 2026 72
April 2026 49

UAL645 frequently asked

Where does flight UAL645 fly?
UAL645 (UAL) flies from DEN to FSD. View the full route page.
How long is flight UAL645?
Based on observed flights, UAL645 takes on average 2h 1m from takeoff to landing.
How often does UAL645 fly?
UAL645 has been observed flying several times a week in our tracking data. We've recorded 245 flights under this callsign.
Is flight UAL645 usually on time?
Across recent flights, UAL645 arrives 7 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL645?
UAL645 has been operated by 24 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL645 live?
Yes. When UAL645 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.