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
14:55 CST
Timezone
America/Costa_Rica
Type
Large Airport
Elevation
270 ft
Coordinates
10.5933, -85.5444

cloud Weather

Wind
70° / 18 kt
Visibility
6 SM
Ceiling
FEW 3,000 ft, SCT 14,000 ft
Temp / Dew
33°C / 22°C
Altimeter
29.76 inHg

Obs: 2026-08-28T20:00:00.000Z

Raw METAR / TAF 
METAR MRLB 282000Z 07018KT 9999 FEW030 SCT140 33/22 A2976

TAF MRLB 281714Z 2818/2918 07020KT 9999 SCT030 TX36/2820Z TN25/2911Z TEMPO 2818/2824 07022G32KT TEMPO 2810/2814 08010KT

flight Live Traffic

flight_takeoff 2 Departures
flight_land 1 Arrivals

Arrival

IAH KIAH VFR

George Bush Intercontinental Airport

Houston, US

Local time
15:55 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
97 ft
Coordinates
29.9844, -95.3414

cloud Weather

Wind
120° / 8 kt
Visibility
10 SM
Ceiling
FEW 5,500 ft, SCT 25,000 ft
Temp / Dew
36°C / 22°C
Altimeter
29.97 inHg

Obs: 2026-08-28T19:53:00.000Z

Raw METAR / TAF 
METAR KIAH 281953Z 12008KT 10SM FEW055 SCT250 36/22 A2997 RMK AO2 SLP146 CB DSNT S-W-N MOVG SW T03610222

TAF KIAH 281720Z 2818/2924 VRB05KT P6SM SCT030 SCT250 FM282000 13007KT P6SM VCSH SCT050 SCT250 PROB30 2821/2824 VRB15G25KT -TSRA BKN050CB FM290000 VRB05KT P6SM FEW030

flight Live Traffic

flight_takeoff 166 Departures
flight_land 189 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-25 A4460D LIR → IAH Jul 25, 22:25 UTCJul 26, 00:45 UTC2h 20m - -
2026-07-23 A3A0CF LIR → IAH Jul 23, 22:35 UTCJul 24, 00:55 UTC2h 20m - -
2026-07-22 A43EE5 LIR → IAH Jul 22, 17:40 UTCJul 23, 01:20 UTC7h 40m - -
2026-07-21 A3C775 LIR → IAH Jul 21, 22:30 UTCJul 22, 00:40 UTC2h 10m - -
2026-07-20 AA4C42 LIR → IAH Jul 20, 22:10 UTCJul 21, 00:30 UTC2h 19m - -
2026-07-20 AA4C42 LIR → IAH Jul 20, 21:42 UTCJul 21, 00:27 UTC2h 45m +15m +1m
2026-07-19 A0AD1B - Jul 19, 22:20 UTCJul 20, 00:40 UTC2h 20m - -
2026-07-19 A288E4 LIR → IAH Jul 19, 00:50 UTCJul 19, 03:53 UTC3h 3m +203m +2m
2026-07-17 AC0B7F LIR → IAH Jul 17, 23:31 UTCJul 18, 02:24 UTC2h 53m +124m +3m
2026-07-16 A1239D - Jul 16, 23:05 UTCJul 17, 01:09 UTC2h 5m - -
2026-07-16 A1239D - Jul 16, 22:45 UTCJul 16, 22:59 UTC15m - -
2026-07-15 A4453E - Jul 15, 17:35 UTCJul 16, 00:55 UTC7h 20m - -
2026-07-14 A288E4 - Jul 14, 18:05 UTCJul 15, 01:25 UTC7h 19m - -
2026-07-13 A43E83 LIR → IAH Jul 13, 23:00 UTCJul 14, 01:53 UTC2h 53m +93m -5m
2026-07-13 A43E83 - Jul 13, 18:50 UTCJul 14, 01:55 UTC7h 5m - -
2026-07-12 AA7E36 - Jul 12, 23:15 UTCJul 13, 01:40 UTC2h 25m - -
2026-07-11 A9D5E7 LIR → IAH Jul 11, 21:52 UTCJul 12, 00:49 UTC2h 57m +25m on time
2026-07-11 A9D5E7 - Jul 11, 17:10 UTCJul 12, 00:50 UTC7h 40m - -
2026-07-10 AA7E36 - Jul 10, 17:05 UTCJul 11, 00:55 UTC7h 50m - -
2026-07-08 A43E5C - Jul 8, 17:10 UTCJul 9, 00:40 UTC7h 30m - -
2026-07-07 A0ACFF - Jul 7, 17:10 UTCJul 8, 01:10 UTC8h 0m - -
2026-07-06 AA4C1A - Jul 6, 22:15 UTCJul 7, 00:30 UTC2h 15m - -
2026-07-06 A0FBFA - Jul 6, 00:50 UTCJul 6, 01:15 UTC25m - -
2026-07-04 AA56D8 - Jul 4, 22:10 UTCJul 5, 00:35 UTC2h 25m - -
2026-07-04 A0ACDD - Jul 4, 00:20 UTCJul 4, 00:40 UTC20m - -
2026-07-02 AA7E36 - Jul 2, 22:25 UTCJul 3, 00:45 UTC2h 20m - -
2026-07-02 AA7E36 LIR → IAH Jul 2, 21:42 UTCJul 3, 00:50 UTC3h 8m +15m -6m
2026-07-01 A9D626 - Jul 1, 18:50 UTCJul 2, 00:35 UTC5h 45m - -
2026-06-30 A1235B - Jun 30, 17:20 UTCJul 1, 00:40 UTC7h 20m - -
2026-06-29 AAA590 - Jun 29, 22:39 UTCJun 30, 00:55 UTC2h 15m - -

Performance history

Flights tracked
107 showing last 30
Avg arrival delay
-1m
On-time arrival
100% 100% on time
Aircraft used
22

Monthly activity 4 months

Month Flights tracked
July 2026 28
June 2026 33
May 2026 29
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 3h 55m 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 107 flights under this callsign.
Is flight UAL401 usually on time?
Across recent flights, UAL401 arrives 1 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL401?
UAL401 has been operated by 22 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.