Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL440

Operated by UAL

Live map

Live map filtered to UAL440. Shown when the flight is currently airborne.

Route airports View route page →

Departure

BOS KBOS VFR

Boston Logan International Airport

Boston, US

Local time
05:06 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
290° / 13G23 kt
Visibility
10 SM
Ceiling
SCT 1,400 ft, SCT 2,700 ft, BKN 11,000 ft
Temp / Dew
12°C / 9°C
Altimeter
29.61 inHg

Obs: 2026-05-30T08:54:00.000Z

Raw METAR / TAF 
METAR KBOS 300854Z 29013G23KT 10SM SCT014 SCT027 BKN110 12/09 A2961 RMK AO2 RAB0757E11 SLP025 P0000 60001 T01220094 53001

TAF KBOS 300901Z 3009/3112 30013G22KT P6SM SCT015 BKN030 FM301000 36020G32KT P6SM VCSH SCT010 OVC015 FM301200 03025G44KT 3SM RA BR SCT008 OVC010 FM302200 01017G28KT P6SM VCSH BKN020 FM310000 01013G20KT P6SM BKN060 FM310300 33010KT P6SM SCT250

flight Live Traffic

flight_takeoff 184 Departures
flight_land 150 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
02:06 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
OVC 1,200 ft
Temp / Dew
13°C / 10°C
Altimeter
30.10 inHg

Obs: 2026-05-30T08:56:00.000Z

Raw METAR / TAF 
METAR KSFO 300856Z 28009KT 10SM OVC012 13/10 A3010 RMK AO2 SLP191 T01280100 58007

TAF KSFO 300900Z 3009/3112 27008KT P6SM OVC012 FM301800 28012KT P6SM SKC FM302300 27022KT P6SM SKC FM310600 28012KT P6SM SKC

flight Live Traffic

flight_takeoff 295 Departures
flight_land 241 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 A448D7 DEN → LAX May 29, 21:20 UTCMay 30, 03:00 UTC5h 40m - -
2026-05-29 A5D28C DEN → LAX May 29, 00:20 UTCMay 29, 05:50 UTC5h 30m - -
2026-05-27 A2BC5A DEN → LAX May 27, 21:00 UTCMay 28, 02:50 UTC5h 50m - -
2026-05-26 AA7E9B DEN → LAX May 26, 21:00 UTCMay 27, 02:49 UTC5h 50m - -
2026-05-25 A12AA5 DEN → LAX May 25, 20:40 UTCMay 26, 02:44 UTC6h 5m - -
2026-05-24 A2BC9E DEN → LAX May 24, 20:40 UTCMay 25, 02:40 UTC6h 0m - -
2026-05-23 A4497F DEN → LAX May 23, 20:30 UTCMay 24, 02:20 UTC5h 50m - -
2026-05-22 AA7F23 DEN → LAX May 22, 21:25 UTCMay 23, 03:35 UTC6h 9m - -
2026-05-22 AA7F23 DEN → LAX May 22, 21:10 UTCMay 23, 03:31 UTC6h 21m +55m +54m
2026-05-21 A2BC5A DEN → LAX May 21, 21:15 UTCMay 22, 03:45 UTC6h 30m - -
2026-05-20 A5D6F9 DEN → LAX May 20, 16:25 UTCMay 20, 20:10 UTC3h 45m - -
2026-05-19 A12AC0 DEN → LAX May 19, 16:20 UTCMay 19, 20:30 UTC4h 10m - -
2026-05-18 A5D68A DEN → LAX May 18, 16:15 UTCMay 18, 20:00 UTC3h 44m - -
2026-05-17 A2BBF2 DEN → LAX May 17, 16:20 UTCMay 17, 20:20 UTC4h 0m - -
2026-05-16 A8FC72 DEN → LAX May 16, 16:20 UTCMay 16, 20:10 UTC3h 50m - -
2026-05-15 A5D2D4 DEN → LAX May 15, 16:20 UTCMay 15, 20:05 UTC3h 45m - -
2026-05-14 A5D6F9 DEN → LAX May 14, 16:20 UTCMay 14, 20:10 UTC3h 50m - -
2026-05-13 A12A81 DEN → LAX May 13, 16:25 UTCMay 13, 20:10 UTC3h 45m - -
2026-05-12 A12AA0 DEN → LAX May 12, 16:25 UTCMay 12, 20:20 UTC3h 55m - -
2026-05-11 AA7F27 DEN → LAX May 11, 16:15 UTCMay 11, 19:55 UTC3h 41m - -
2026-05-10 A445C7 DEN → LAX May 10, 16:30 UTCMay 10, 20:35 UTC4h 5m - -
2026-05-09 A8FC06 DEN → LAX May 9, 16:40 UTCMay 9, 20:40 UTC4h 0m - -
2026-05-08 A44984 DEN → LAX May 8, 16:30 UTCMay 8, 20:30 UTC4h 0m - -
2026-05-07 A445AD DEN → LAX May 7, 16:25 UTCMay 7, 20:25 UTC4h 0m - -
2026-05-06 A448F2 DEN → LAX May 6, 16:15 UTCMay 6, 20:25 UTC4h 10m - -
2026-05-05 A2BC5A DEN → LAX May 5, 16:15 UTCMay 5, 20:25 UTC4h 10m - -
2026-05-04 A12A7C DEN → LAX May 4, 16:20 UTCMay 4, 20:30 UTC4h 11m - -
2026-05-03 A12AA1 DEN → LAX May 3, 16:25 UTCMay 3, 20:20 UTC3h 55m - -
2026-05-03 A12AA1 DEN → LAX May 3, 16:21 UTCMay 3, 20:14 UTC3h 53m +18m +2m
2026-05-02 AA2BA2 DEN → LAX May 2, 16:55 UTCMay 2, 20:50 UTC3h 55m - -

Performance history

Flights tracked
62 showing last 30
Avg arrival delay
+28m
On-time arrival
50% 50% on time
Aircraft used
25

Monthly activity 2 months

Month Flights tracked
May 2026 31
April 2026 31

UAL440 frequently asked

Where does flight UAL440 fly?
UAL440 (UAL) flies from BOS to SFO. View the full route page.
How long is flight UAL440?
Based on observed flights, UAL440 takes on average 4h 37m from takeoff to landing.
How often does UAL440 fly?
UAL440 has been observed flying daily in our tracking data. We've recorded 62 flights under this callsign.
Is flight UAL440 usually on time?
Across recent flights, UAL440 arrives with an average 28-minute delay. 50% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL440?
UAL440 has been operated by 25 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL440 live?
Yes. When UAL440 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.