Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL2139

Operated by United Airlines

Live map

Live map filtered to UAL2139. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SFO KSFO IFR

San Francisco International Airport

San Francisco, US

Local time
06:26 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
280° / 9 kt
Visibility
10 SM
Ceiling
FEW 400 ft, BKN 900 ft, OVC 1,200 ft
Temp / Dew
13°C / 11°C
Altimeter
30.04 inHg

Obs: 2026-06-03T12:56:00.000Z

Raw METAR / TAF 
METAR KSFO 031256Z 28009KT 10SM FEW004 BKN009 OVC012 13/11 A3004 RMK AO2 SLP172 T01280106 $

TAF KSFO 031122Z 0312/0418 27010KT P6SM FEW004 OVC009 FM031600 28015G25KT P6SM FEW010 FM032100 28020G30KT P6SM FEW250 FM040600 27015KT P6SM SCT015

warning FAA Advisories

  • Ground Delay: OTHER (avg 33 minutes)

flight Live Traffic

flight_takeoff 384 Departures
flight_land 357 Arrivals

Arrival

LIR MRLB VFR

Daniel Oduber Quirós International Airport

Liberia, CR

Local time
07:26 CST
Timezone
America/Costa_Rica
Type
Large Airport
Elevation
270 ft
Coordinates
10.5933, -85.5444

cloud Weather

Wind
280° / 5 kt
Visibility
6 SM
Ceiling
SCT 3,000 ft, SCT 10,000 ft
Temp / Dew
28°C / 24°C
Altimeter
29.83 inHg

Obs: 2026-06-03T13:00:00.000Z

Raw METAR / TAF 
METAR MRLB 031300Z 28005KT 9999 SCT030 SCT100 28/24 A2983

TAF MRLB 031100Z 0312/0412 09008KT 9999 FEW040 TX34/0320Z TN23/0411Z TEMPO 0312/0315 29005KT BECMG 0317/0320 28007KT TEMPO 0321/0401 SHRA FEW015TCU BECMG 0401/0403 08009KT

flight Live Traffic

flight_takeoff 9 Departures
flight_land 10 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-30 A2B10C SFO → LIR May 30, 19:05 UTCMay 31, 19:00 UTC23h 55m - -
2026-05-30 A2B10C SFO → LIR May 30, 18:25 UTCMay 30, 21:55 UTC3h 30m - -
2026-05-30 A2B10C SFO → LIR May 30, 18:23 UTCMay 31, 00:22 UTC5h 59m +33m -4m
2026-05-29 A12750 SFO → LIR May 29, 20:05 UTCMay 30, 20:00 UTC23h 55m - -
2026-05-29 A12750 SFO → LIR May 29, 18:15 UTCMay 30, 17:35 UTC23h 20m - -
2026-05-23 A44257 SFO → LIR May 23, 18:25 UTCMay 23, 23:35 UTC5h 10m - -
2026-05-23 A44257 SFO → LIR May 23, 18:16 UTCMay 24, 00:01 UTC5h 45m +26m -21m
2026-05-22 A12429 SFO → LIR May 22, 19:10 UTCMay 23, 17:45 UTC22h 34m - -
2026-05-20 A0B821 SFO → LIR May 20, 10:40 UTCMay 20, 12:50 UTC2h 10m - -
2026-05-19 A0B7D9 SFO → LIR May 19, 10:45 UTCMay 19, 12:55 UTC2h 10m - -
2026-05-18 A0B7B7 SFO → LIR May 18, 11:10 UTCMay 18, 13:25 UTC2h 15m - -
2026-05-18 A0B7B7 SFO → LIR May 18, 11:05 UTCMay 18, 13:25 UTC2h 20m +35m +4m
2026-05-17 A0B826 SFO → LIR May 17, 10:40 UTCMay 17, 12:55 UTC2h 15m - -
2026-05-16 A0B802 SFO → LIR May 16, 11:31 UTCMay 16, 13:41 UTC2h 10m - -
2026-05-16 A0B802 SFO → LIR May 16, 11:20 UTCMay 16, 13:46 UTC2h 26m +50m +5m
2026-05-15 A2452F SFO → LIR May 15, 10:50 UTCMay 15, 13:08 UTC2h 18m +20m +8m
2026-05-15 A2452F SFO → LIR May 15, 10:35 UTCMay 15, 13:05 UTC2h 30m - -
2026-05-14 A6EDE5 SFO → LIR May 14, 10:45 UTCMay 14, 12:45 UTC2h 0m - -
2026-05-13 A0B7D9 SFO → LIR May 13, 10:35 UTCMay 13, 12:35 UTC2h 0m - -
2026-05-12 A0B7DE SFO → LIR May 12, 10:45 UTCMay 12, 12:45 UTC2h 0m - -
2026-05-12 A0B7DE SFO → LIR May 12, 10:50 UTCMay 12, 12:49 UTC1h 59m +20m +5m
2026-05-11 A6EDE5 SFO → LIR May 11, 11:20 UTCMay 11, 13:35 UTC2h 15m - -
2026-05-10 A0B7FD SFO → LIR May 10, 10:45 UTCMay 10, 12:59 UTC2h 15m - -
2026-05-09 A0B7FA SFO → LIR May 9, 10:45 UTCMay 9, 13:05 UTC2h 20m - -
2026-05-08 A2454F SFO → LIR May 8, 10:49 UTCMay 8, 13:15 UTC2h 25m - -
2026-05-08 A2454F SFO → LIR May 8, 10:50 UTCMay 8, 13:19 UTC2h 29m +20m +8m
2026-05-07 A0B7B6 SFO → LIR May 7, 10:35 UTCMay 7, 13:05 UTC2h 30m - -
2026-05-06 A0B7FD SFO → LIR May 6, 10:45 UTCMay 6, 13:35 UTC2h 50m - -
2026-05-05 A0B803 SFO → LIR May 5, 10:45 UTCMay 5, 13:15 UTC2h 30m - -
2026-05-05 A0B803 SFO → LIR May 5, 10:50 UTCMay 5, 13:21 UTC2h 31m +20m +2m

Performance history

Flights tracked
44 showing last 30
Avg arrival delay
+1m
On-time arrival
100% 100% on time
Aircraft used
17

Monthly activity 2 months

Month Flights tracked
May 2026 35
April 2026 9

UAL2139 frequently asked

Where does flight UAL2139 fly?
UAL2139 (United Airlines) flies from SFO to LIR. View the full route page.
How long is flight UAL2139?
Based on observed flights, UAL2139 takes on average 5h 30m from takeoff to landing.
How often does UAL2139 fly?
UAL2139 has been observed flying several times a week in our tracking data. We've recorded 44 flights under this callsign.
Is flight UAL2139 usually on time?
Across recent flights, UAL2139 arrives with an average 1-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL2139?
UAL2139 has been operated by 17 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL2139 live?
Yes. When UAL2139 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.