Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL391

Operated by United Airlines

Live map

Live map filtered to UAL391. Shown when the flight is currently airborne.

Route airports View route page →

Departure

BOS KBOS VFR

Boston Logan International Airport

Boston, US

Local time
22:16 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
110° / 4 kt
Visibility
10 SM
Ceiling
SCT 7,000 ft, BKN 9,000 ft
Temp / Dew
15°C / 13°C
Altimeter
29.72 inHg
Wx
-RA

Obs: 2026-05-30T01:54:00.000Z

Raw METAR / TAF 
METAR KBOS 300154Z 11004KT 10SM -RA SCT070 BKN090 15/13 A2972 RMK AO2 RAE0057B22E33B54 SLP064 P0000 T01500128

TAF KBOS 292323Z 3000/3106 13008KT P6SM OVC070 FM300400 30013G25KT P6SM -SHRA OVC040 TEMPO 3004/3006 4SM SHRA FM300700 33013KT P6SM BKN020 FM301000 36020G32KT P6SM VCSH OVC020 FM301200 03025G44KT 3SM RA BR OVC010 FM302200 01017G28KT P6SM VCSH BKN050 FM310100 33005KT P6SM BKN130

flight Live Traffic

flight_takeoff 158 Departures
flight_land 161 Arrivals

Arrival

EWR KEWR VFR

Newark Liberty International Airport

Newark, US

Local time
22:16 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
18 ft
Coordinates
40.6894, -74.1705

cloud Weather

Wind
230° / 11 kt
Visibility
10 SM
Ceiling
FEW 5,500 ft, BKN 10,000 ft, BKN 13,000 ft
Temp / Dew
23°C / 8°C
Altimeter
29.72 inHg

Obs: 2026-05-30T01:51:00.000Z

Raw METAR / TAF 
METAR KEWR 300151Z 23011KT 10SM FEW055 BKN100 BKN130 23/08 A2972 RMK AO2 SLP063 T02330083 $

TAF KEWR 292337Z 3000/3106 23012G21KT P6SM SCT060 BKN100 TEMPO 3000/3002 -SHRA FM300500 32015G24KT P6SM SCT050 BKN100 FM301100 34020G31KT P6SM BKN040 BKN100 FM302100 36019G29KT P6SM SCT050 SCT100 FM302300 01015G25KT P6SM FEW050 FEW100 FM310100 01011KT P6SM FEW100 FM310400 36006KT P6SM SKC

flight Live Traffic

flight_takeoff 211 Departures
flight_land 148 Arrivals

Recent history last 8

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-23 AA7E7D BOS → EWR May 23, 13:05 UTCMay 23, 23:55 UTC10h 51m - -
2026-05-09 A5CF82 BOS → EWR May 9, 14:05 UTCMay 10, 00:30 UTC10h 25m - -
2026-05-02 A5CF41 BOS → EWR May 2, 20:40 UTCMay 3, 00:20 UTC3h 40m - -
2026-05-02 A5CF41 BOS → EWR May 2, 19:45 UTCMay 2, 19:55 UTC10m - -
2026-04-25 A12797 BOS → EWR Apr 25, 20:20 UTCApr 26, 00:15 UTC3h 55m - -
2026-04-25 A12797 BOS → EWR Apr 25, 19:25 UTCApr 25, 19:40 UTC15m - -
2026-04-18 A5CC11 BOS → EWR Apr 18, 20:20 UTCApr 19, 00:10 UTC3h 50m - -
2026-04-18 A5CC11 BOS → EWR Apr 18, 19:25 UTCApr 18, 19:35 UTC10m - -

Performance history

Flights tracked
8
Avg arrival delay
-
On-time arrival
-
Aircraft used
5

Monthly activity 2 months

Month Flights tracked
May 2026 4
April 2026 4

UAL391 frequently asked

Where does flight UAL391 fly?
UAL391 (United Airlines) flies from BOS to EWR. View the full route page.
How long is flight UAL391?
Based on observed flights, UAL391 takes on average 4h 9m from takeoff to landing.
How often does UAL391 fly?
UAL391 has been observed flying several times a week in our tracking data. We've recorded 8 flights under this callsign.
What aircraft operates flight UAL391?
UAL391 has been operated by 5 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL391 live?
Yes. When UAL391 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.