Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL421

Operated by UAL

Live map

Live map filtered to UAL421. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
05:23 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
180° / 12 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
18°C / 9°C
Altimeter
30.22 inHg

Obs: 2026-07-14T10:53:00.000Z

Raw METAR / TAF 
METAR KDEN 141053Z 18012KT 10SM CLR 18/09 A3022 RMK AO2 SLP139 T01830094

TAF KDEN 140843Z 1409/1512 16014G24KT P6SM SKC FM141100 19011KT P6SM SKC FM141300 23006KT P6SM SKC FM141500 VRB06KT P6SM FEW110 FM141700 10011KT P6SM FEW110 FM142100 13014G22KT P6SM FEW110 FM150400 16014G22KT P6SM FEW110

flight Live Traffic

flight_takeoff 298 Departures
flight_land 343 Arrivals

Arrival

IAD KIAD VFR

Washington Dulles International Airport

Dulles, US

Local time
07:23 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
312 ft
Coordinates
38.9445, -77.4558

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
FEW 25,000 ft
Temp / Dew
19°C / 18°C
Altimeter
30.17 inHg

Obs: 2026-07-14T10:52:00.000Z

Raw METAR / TAF 
METAR KIAD 141052Z 00000KT 10SM FEW250 19/18 A3017 RMK AO2 SLP215 T01940183 $

TAF KIAD 140841Z 1409/1512 18005KT P6SM SKC FM141600 22006KT P6SM FEW050

flight Live Traffic

flight_takeoff 146 Departures
flight_land 206 Arrivals

Monthly activity 4 months

Month Flights tracked
July 2026 15
June 2026 34
May 2026 37
April 2026 26

UAL421 frequently asked

Where does flight UAL421 fly?
UAL421 (UAL) flies from DEN to IAD. View the full route page.
How often does UAL421 fly?
UAL421 has been observed flying rarely in our tracking data. We've recorded 0 flights under this callsign.
Can I track UAL421 live?
Yes. When UAL421 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.