Apparatus

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flight_takeoff Flight

UAL477

Operated by United Airlines

Live map

Live map filtered to UAL477. Shown when the flight is currently airborne.

Route airports View route page →

Departure

BOS KBOS VFR

Boston Logan International Airport

Boston, US

Local time
03:07 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
270° / 9 kt
Visibility
10 SM
Ceiling
FEW 7,000 ft, SCT 20,000 ft
Temp / Dew
19°C / 15°C
Altimeter
29.82 inHg

Obs: 2026-04-15T06:54:00.000Z

Raw METAR / TAF 
METAR KBOS 150654Z 27009KT 10SM FEW070 SCT200 19/15 A2982 RMK AO2 SLP097 T01890150

TAF KBOS 150532Z 1506/1612 24010KT P6SM SCT070 FM151200 32005KT P6SM SCT025 FM151500 08007KT 6SM BR BKN015 FM151700 09010KT P6SM BKN008 PROB30 1521/1602 2SM -TSRA OVC008CB FM160200 06004KT 3SM BR OVC008 WS020/23035KT PROB30 1605/1611 1SM -SHRA BR OVC006

flight Live Traffic

flight_takeoff 35 Departures
flight_land 49 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
00:07 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
270° / 11 kt
Visibility
10 SM
Ceiling
BKN 2,200 ft
Temp / Dew
12°C / 7°C
Altimeter
30.13 inHg

Obs: 2026-04-15T06:56:00.000Z

Raw METAR / TAF 
METAR KSFO 150656Z 27011KT 10SM BKN022 12/07 A3013 RMK AO2 SLP203 T01220072 $

TAF KSFO 150520Z 1506/1612 28012KT P6SM FEW030 FM151400 28014KT P6SM BKN050 FM151900 27018KT P6SM BKN150 FM160400 27015KT P6SM BKN030

flight Live Traffic

flight_takeoff 168 Departures
flight_land 153 Arrivals

Recent history last 3

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-13 AC523C BOS → SFO Apr 13, 22:20 UTCApr 13, 23:45 UTC1h 25m - -
2026-04-13 A135CB BOS → SFO Apr 13, 00:20 UTCApr 13, 01:25 UTC1h 5m - -
2026-04-12 A135CB BOS → SFO Apr 12, 23:55 UTCApr 13, 01:25 UTC1h 30m - -

Performance history

Flights tracked
3
Avg arrival delay
-
On-time arrival
-
Aircraft used
2

Monthly activity 1 month

Month Flights tracked
April 2026 3

UAL477 frequently asked

Where does flight UAL477 fly?
UAL477 (United Airlines) flies from BOS to SFO. View the full route page.
How long is flight UAL477?
Based on observed flights, UAL477 takes on average 1h 20m from takeoff to landing.
How often does UAL477 fly?
UAL477 has been observed flying occasionally in our tracking data. We've recorded 3 flights under this callsign.
What aircraft operates flight UAL477?
UAL477 has been operated by 2 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL477 live?
Yes. When UAL477 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.