Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL1421

Operated by United Airlines

Live map

Live map filtered to UAL1421. Shown when the flight is currently airborne.

Route airports View route page →

Departure

IAH KIAH VFR

George Bush Intercontinental Airport

Houston, US

Local time
01:36 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
97 ft
Coordinates
29.9844, -95.3414

cloud Weather

Wind
190° / 5 kt
Visibility
10 SM
Ceiling
SCT 6,500 ft, SCT 11,000 ft, SCT 25,000 ft
Temp / Dew
29°C / 24°C
Altimeter
29.99 inHg

Obs: 2026-08-28T05:53:00.000Z

Raw METAR / TAF 
METAR KIAH 280553Z 19005KT 10SM SCT065 SCT110 SCT250 29/24 A2999 RMK AO2 SLP155 T02940244 10344 20294 403780278 51015

TAF KIAH 280550Z 2806/2912 VRB05KT P6SM VCSH FEW030 SCT100 FM281000 VRB05KT P6SM FEW080 SCT250 FM282200 13006KT P6SM SCT250 FM290300 VRB05KT P6SM FEW030 FM290900 VRB03KT P6SM FEW050

flight Live Traffic

flight_takeoff 59 Departures
flight_land 56 Arrivals

Arrival

BWI KBWI VFR

Baltimore/Washington International Thurgood Marshall Airport

Baltimore, US

Local time
02:36 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
146 ft
Coordinates
39.1754, -76.6683

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
FEW 3,800 ft, FEW 4,800 ft, SCT 6,500 ft, BKN 25,000 ft
Temp / Dew
21°C / 20°C
Altimeter
29.95 inHg

Obs: 2026-08-28T05:54:00.000Z

Raw METAR / TAF 
METAR KBWI 280554Z 00000KT 10SM FEW038 FEW048 SCT065 BKN250 21/20 A2995 RMK AO2 SLP141 ACC W-N 60000 T02110200 10267 20211 50001

TAF KBWI 280529Z 2806/2912 00000KT P6SM BKN080 FM281700 35006KT P6SM BKN060 PROB30 2820/2824 -TSRA BKN060CB FM290500 36007KT P6SM SCT080

flight Live Traffic

flight_takeoff 19 Departures
flight_land 34 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A9249C IAH → BWI Jul 26, 16:45 UTCJul 26, 18:45 UTC2h 0m - -
2026-07-26 A0B7D8 IAH → BWI Jul 26, 12:30 UTCJul 26, 15:15 UTC2h 45m - -
2026-07-25 AA7E9A IAH → BWI Jul 25, 17:00 UTCJul 25, 19:00 UTC2h 0m - -
2026-07-25 A0B7BA IAH → BWI Jul 25, 12:25 UTCJul 25, 14:55 UTC2h 30m - -
2026-07-24 A94B6B IAH → BWI Jul 24, 16:25 UTCJul 24, 18:35 UTC2h 10m - -
2026-07-24 A0B803 IAH → BWI Jul 24, 12:30 UTCJul 24, 15:05 UTC2h 35m - -
2026-07-23 A46D29 - Jul 23, 16:30 UTCJul 23, 19:00 UTC2h 30m - -
2026-07-23 A0B7BD - Jul 23, 12:15 UTCJul 23, 14:50 UTC2h 35m - -
2026-07-22 A12F73 - Jul 22, 16:45 UTCJul 22, 18:45 UTC2h 0m - -
2026-07-22 A12F73 FLL → IAD Jul 22, 16:31 UTCJul 22, 18:47 UTC2h 16m +18m +7m
2026-07-22 A3D2C0 ORD → FLL Jul 22, 12:20 UTCJul 22, 14:50 UTC2h 30m - -
2026-07-21 A445AB - Jul 21, 16:30 UTCJul 21, 18:45 UTC2h 15m - -
2026-07-21 A6EDC3 ORD → FLL Jul 21, 12:20 UTCJul 21, 14:50 UTC2h 30m - -
2026-07-20 A837A3 - Jul 20, 16:30 UTCJul 20, 18:35 UTC2h 5m - -
2026-07-20 A0B7BA - Jul 20, 12:20 UTCJul 20, 14:45 UTC2h 25m - -
2026-07-19 A2B8C5 - Jul 19, 16:55 UTCJul 19, 18:55 UTC2h 0m - -
2026-07-19 A0B889 - Jul 19, 12:25 UTCJul 19, 15:00 UTC2h 35m - -
2026-07-18 A44984 - Jul 18, 18:00 UTCJul 18, 20:50 UTC2h 50m - -
2026-07-18 A44984 FLL → IAD Jul 18, 17:37 UTCJul 18, 20:54 UTC3h 17m +82m +34m
2026-07-18 A0B848 ORD → FLL Jul 18, 12:20 UTCJul 18, 14:55 UTC2h 35m - -
2026-07-17 A44560 FLL → IAD Jul 17, 16:34 UTCJul 17, 18:34 UTC2h 0m - -
2026-07-17 A2452A ORD → FLL Jul 17, 12:25 UTCJul 17, 15:10 UTC2h 45m - -
2026-07-16 A837A7 - Jul 16, 16:30 UTCJul 16, 18:29 UTC2h 0m - -
2026-07-16 A837A7 FLL → IAD Jul 16, 16:31 UTCJul 16, 18:27 UTC1h 56m +18m -15m
2026-07-16 A0B7FB ORD → FLL Jul 16, 12:55 UTCJul 16, 15:25 UTC2h 30m - -
2026-07-15 A9249C FLL → IAD Jul 15, 16:20 UTCJul 15, 18:20 UTC2h 0m - -
2026-07-15 A6ED3B - Jul 15, 12:40 UTCJul 15, 15:10 UTC2h 30m - -
2026-07-14 A12AA0 - Jul 14, 16:30 UTCJul 14, 18:40 UTC2h 10m - -
2026-07-14 A0B840 - Jul 14, 12:15 UTCJul 14, 14:45 UTC2h 30m - -
2026-07-13 A41E2C - Jul 13, 16:35 UTCJul 13, 18:35 UTC2h 0m - -

Performance history

Flights tracked
207 showing last 30
Avg arrival delay
+9m
On-time arrival
67% 67% on time
Aircraft used
25

Monthly activity 4 months

Month Flights tracked
July 2026 57
June 2026 64
May 2026 42
April 2026 44

UAL1421 frequently asked

Where does flight UAL1421 fly?
UAL1421 (United Airlines) flies from IAH to BWI. View the full route page.
How long is flight UAL1421?
Based on observed flights, UAL1421 takes on average 2h 21m from takeoff to landing.
How often does UAL1421 fly?
UAL1421 has been observed flying several times a week in our tracking data. We've recorded 207 flights under this callsign.
Is flight UAL1421 usually on time?
Across recent flights, UAL1421 arrives with an average 9-minute delay. 67% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1421?
UAL1421 has been operated by 25 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1421 live?
Yes. When UAL1421 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.