Apparatus

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flight_takeoff Flight

UAL401

Operated by United Airlines

Live map

Live map filtered to UAL401. Shown when the flight is currently airborne.

Route airports View route page →

Departure

LIR MRLB VFR

Daniel Oduber Quirós International Airport

Liberia, CR

Local time
23:02 CST
Timezone
America/Costa_Rica
Type
Large Airport
Elevation
270 ft
Coordinates
10.5933, -85.5444

cloud Weather

Wind
190° / 3 kt
Visibility
6 SM
Ceiling
CAVOK
Temp / Dew
25°C / 24°C
Altimeter
29.87 inHg

Obs: 2026-05-30T05:00:00.000Z

Raw METAR / TAF 
METAR MRLB 300500Z 19003KT CAVOK 25/24 A2987

TAF MRLB 292300Z 3000/3024 09010KT 9999 FEW040 TX36/3020Z TN24/3011Z TEMPO 3000/3003 29005KT TSRA SCT015CB TEMPO 3008/3014 27004KT TEMPO 3020/3024 28007KT TSRA FEW020CB

flight Live Traffic

flight_takeoff 3 Departures
flight_land 3 Arrivals

Arrival

IAH KIAH VFR

George Bush Intercontinental Airport

Houston, US

Local time
00:02 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
97 ft
Coordinates
29.9844, -95.3414

cloud Weather

Wind
190° / 4 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
26°C / 23°C
Altimeter
29.88 inHg

Obs: 2026-05-30T04:53:00.000Z

Raw METAR / TAF 
METAR KIAH 300453Z 19004KT 10SM CLR 26/23 A2988 RMK AO2 SLP118 T02610228

TAF KIAH 292320Z 3000/3106 VRB05KT P6SM SCT050 BKN250 FM301100 VRB03KT P6SM SCT010 FM301500 21006KT P6SM FEW025 FM301800 17009KT P6SM SCT040 BKN250 FM310300 18006KT P6SM FEW030 BKN250

flight Live Traffic

flight_takeoff 286 Departures
flight_land 230 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 A0FBFA LIR → IAH May 29, 22:25 UTCMay 30, 00:35 UTC2h 10m - -
2026-05-28 A3EF1B LIR → IAH May 28, 17:15 UTCMay 29, 01:00 UTC7h 45m - -
2026-05-27 A9238A LIR → IAH May 27, 17:40 UTCMay 28, 01:05 UTC7h 25m - -
2026-05-27 A3EEB0 LIR → IAH May 27, 00:34 UTCMay 27, 00:59 UTC25m - -
2026-05-26 A3EEB0 LIR → IAH May 26, 22:35 UTCMay 26, 23:39 UTC1h 5m - -
2026-05-24 A41632 LIR → IAH May 24, 23:20 UTCMay 24, 23:46 UTC26m - -
2026-05-24 A12750 LIR → IAH May 24, 00:05 UTCMay 24, 03:00 UTC2h 55m - -
2026-05-22 A9D5A2 LIR → IAH May 22, 17:05 UTCMay 23, 00:50 UTC7h 45m - -
2026-05-18 A4423B LIR → IAH May 18, 21:42 UTCMay 19, 00:49 UTC3h 7m +15m +6m
2026-05-17 A0ACFD LIR → IAH May 17, 17:20 UTCMay 18, 01:30 UTC8h 10m - -
2026-05-16 AA7E7D LIR → IAH May 16, 17:15 UTCMay 17, 00:50 UTC7h 35m - -
2026-05-15 A41743 LIR → IAH May 15, 22:35 UTCMay 15, 22:45 UTC10m - -
2026-05-15 A41743 LIR → IAH May 15, 22:02 UTCMay 16, 00:56 UTC2h 54m +35m -12m
2026-05-15 A41743 LIR → IAH May 15, 22:02 UTCMay 16, 01:04 UTC3h 2m +35m -4m
2026-05-14 AA7E7C LIR → IAH May 14, 22:26 UTCMay 15, 01:16 UTC2h 50m +59m +1m
2026-05-14 AA7E7C LIR → IAH May 14, 18:15 UTCMay 15, 01:15 UTC7h 0m - -
2026-05-10 A0855D LIR → IAH May 10, 21:42 UTCMay 11, 00:32 UTC2h 50m +15m -1m
2026-05-08 A43E5C LIR → IAH May 8, 22:15 UTCMay 9, 00:40 UTC2h 25m - -
2026-05-07 A4455E LIR → IAH May 7, 17:20 UTCMay 8, 00:40 UTC7h 19m - -
2026-05-04 A441F5 LIR → IAH May 4, 17:15 UTCMay 5, 00:50 UTC7h 36m - -
2026-05-03 A12AC9 LIR → IAH May 3, 22:34 UTCMay 4, 00:55 UTC2h 20m - -
2026-05-02 A41743 LIR → IAH May 2, 23:20 UTCMay 3, 01:45 UTC2h 25m - -
2026-05-02 A14AD1 LIR → IAH May 2, 00:55 UTCMay 2, 01:30 UTC35m - -
2026-05-01 A14AD1 LIR → IAH May 1, 23:20 UTCMay 1, 23:55 UTC35m - -
2026-05-01 A14AD1 LIR → IAH May 1, 22:20 UTCMay 2, 01:35 UTC3h 15m +53m +37m
2026-04-30 A94B2B LIR → IAH Apr 30, 17:10 UTCMay 1, 01:00 UTC7h 50m - -
2026-04-27 AC0B61 LIR → IAH Apr 27, 17:20 UTCApr 28, 00:55 UTC7h 35m - -
2026-04-26 AA7E7A LIR → IAH Apr 26, 22:30 UTCApr 27, 01:10 UTC2h 40m - -
2026-04-25 A43EA3 LIR → IAH Apr 25, 17:05 UTCApr 26, 00:40 UTC7h 35m - -
2026-04-24 AA56B4 LIR → IAH Apr 24, 21:50 UTCApr 25, 00:55 UTC3h 5m - -

Performance history

Flights tracked
42 showing last 30
Avg arrival delay
+5m
On-time arrival
83% 83% on time
Aircraft used
23

Monthly activity 2 months

Month Flights tracked
May 2026 25
April 2026 17

UAL401 frequently asked

Where does flight UAL401 fly?
UAL401 (United Airlines) flies from LIR to IAH. View the full route page.
How long is flight UAL401?
Based on observed flights, UAL401 takes on average 4h 6m from takeoff to landing.
How often does UAL401 fly?
UAL401 has been observed flying several times a week in our tracking data. We've recorded 42 flights under this callsign.
Is flight UAL401 usually on time?
Across recent flights, UAL401 arrives with an average 5-minute delay. 83% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL401?
UAL401 has been operated by 23 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL401 live?
Yes. When UAL401 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.