Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL1637

Operated by UAL

Live map

Live map filtered to UAL1637. Shown when the flight is currently airborne.

Upcoming flights 1 scheduled

From To Scheduled departure Estimated arrival Status
PHX DEN Apr 16, 02:17 AM UTC Apr 16, 03:52 AM UTC PLANNED

Route airports View route page →

Departure

PHX KPHX VFR

Phoenix Sky Harbor International Airport

Phoenix, US

Local time
20:34 MST
Timezone
America/Phoenix
Type
Large Airport
Elevation
1,135 ft
Coordinates
33.4353, -112.0059

cloud Weather

Wind
240° / 8 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
23°C / -2°C
Altimeter
29.91 inHg

Obs: 2026-04-15T02:51:00.000Z

Raw METAR / TAF 
METAR KPHX 150251Z 24008KT 10SM CLR 23/M02 A2991 RMK AO2 SLP117 T02331022 55000 $

TAF KPHX 150236Z 1503/1606 25007KT P6SM SKC FM150800 10005KT P6SM SKC FM152000 27007KT P6SM SKC

flight Live Traffic

flight_takeoff 365 Departures
flight_land 369 Arrivals

Arrival

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
21:34 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
340° / 12 kt
Visibility
10 SM
Ceiling
FEW 10,000 ft, FEW 14,000 ft, SCT 20,000 ft
Temp / Dew
8°C / -1°C
Altimeter
29.88 inHg

Obs: 2026-04-15T02:53:00.000Z

Raw METAR / TAF 
METAR KDEN 150253Z 34012KT 10SM FEW100 FEW140 SCT200 08/M01 A2988 RMK AO2 SLP083 60000 T00831011 53005

TAF KDEN 150258Z 1503/1606 34011KT P6SM SCT100 FM150600 21007KT P6SM SCT200 FM151400 27007KT P6SM SCT200 FM152100 31008KT P6SM SCT200 FM160300 23007KT P6SM SCT200

flight Live Traffic

flight_takeoff 758 Departures
flight_land 698 Arrivals

Recent history last 2

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-13 A13651 PHX → EWR Apr 13, 13:13 UTCApr 13, 15:56 UTC2h 43m +13m +7m
2026-04-13 A44565 PHX → EWR Apr 13, 02:30 UTCApr 13, 03:50 UTC1h 20m - -

Performance history

Flights tracked
2
Avg arrival delay
+7m
On-time arrival
100% 100% on time
Aircraft used
2

Monthly activity 1 month

Month Flights tracked
April 2026 2

UAL1637 frequently asked

Where does flight UAL1637 fly?
UAL1637 (UAL) flies from PHX to DEN. View the full route page.
How long is flight UAL1637?
Based on observed flights, UAL1637 takes on average 2h 1m from takeoff to landing.
How often does UAL1637 fly?
UAL1637 has been observed flying rarely in our tracking data. We've recorded 2 flights under this callsign.
Is flight UAL1637 usually on time?
Across recent flights, UAL1637 arrives with an average 7-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1637?
UAL1637 has been operated by 2 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1637 live?
Yes. When UAL1637 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.