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
18:35 CST
Timezone
America/Costa_Rica
Type
Large Airport
Elevation
270 ft
Coordinates
10.5933, -85.5444

cloud Weather

Wind
80° / 21 kt
Visibility
6 SM
Ceiling
CAVOK
Temp / Dew
30°C / 20°C
Altimeter
29.75 inHg

Obs: 2026-04-15T00:00:00.000Z

Raw METAR / TAF 
METAR MRLB 150000Z 08021KT CAVOK 30/20 A2975

TAF MRLB 142345Z 1500/1524 08022KT 9999 FEW045 TX36/1520Z TN24/1511Z TEMPO 1508/1512 08005KT TEMPO 1518/1524 10010KT

flight Live Traffic

flight_takeoff 19 Departures
flight_land 7 Arrivals

Arrival

IAH KIAH VFR

George Bush Intercontinental Airport

Houston, US

Local time
19:35 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
97 ft
Coordinates
29.9844, -95.3414

cloud Weather

Wind
130° / 16G23 kt
Visibility
10 SM
Ceiling
FEW 3,200 ft, FEW 4,300 ft
Temp / Dew
26°C / 21°C
Altimeter
29.99 inHg

Obs: 2026-04-14T23:53:00.000Z

Raw METAR / TAF 
METAR KIAH 142353Z 13016G23KT 10SM FEW032 FEW043 26/21 A2999 RMK AO2 SLP155 T02560211 10289 20256 55006

TAF KIAH 142323Z 1500/1606 13014G24KT P6SM FEW035 SCT050 FM150200 15012KT P6SM SCT030 BKN040 FM150800 16006KT P6SM BKN015 BKN025 FM151400 17010KT P6SM SCT020 BKN025 FM151700 17014G24KT P6SM SCT035 BKN050 FM160400 16008KT P6SM SCT020 BKN035

flight Live Traffic

flight_takeoff 266 Departures
flight_land 290 Arrivals

Recent history last 2

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-13 A0ACF8 LIR → IAH Apr 13, 21:42 UTCApr 14, 01:05 UTC3h 23m +15m +7m
2026-04-13 A05DDC LIR → IAH Apr 13, 00:30 UTCApr 13, 01:05 UTC35m - -

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

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 1h 59m from takeoff to landing.
How often does UAL401 fly?
UAL401 has been observed flying rarely in our tracking data. We've recorded 2 flights under this callsign.
Is flight UAL401 usually on time?
Across recent flights, UAL401 arrives with an average 7-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL401?
UAL401 has been operated by 2 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.