Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL3915

Operated by United Airlines

Live map

Live map filtered to UAL3915. Shown when the flight is currently airborne.

Route airports View route page →

Departure

BOS KBOS VFR

Boston Logan International Airport

Boston, US

Local time
21:09 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
90° / 5 kt
Visibility
10 SM
Ceiling
BKN 7,000 ft, BKN 9,000 ft, OVC 11,000 ft
Temp / Dew
16°C / 12°C
Altimeter
29.73 inHg
Wx
-RA

Obs: 2026-05-30T00:54:00.000Z

Raw METAR / TAF 
METAR KBOS 300054Z 09005KT 10SM -RA BKN070 BKN090 OVC110 16/12 A2973 RMK AO2 SLP066 P0000 T01610122

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 172 Departures
flight_land 187 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
18:09 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
270° / 14G20 kt
Visibility
10 SM
Ceiling
FEW 400 ft, BKN 1,800 ft, BKN 3,700 ft
Temp / Dew
16°C / 11°C
Altimeter
30.08 inHg

Obs: 2026-05-30T00:56:00.000Z

Raw METAR / TAF 
METAR KSFO 300056Z 27014G20KT 10SM FEW004 BKN018 BKN037 16/11 A3008 RMK AO2 SLP186 T01560111

TAF KSFO 292320Z 3000/3106 27012KT P6SM BKN025 FM300400 26010KT P6SM OVC010 FM300900 26005KT P6SM BKN015 FM301700 29010KT P6SM SKC FM302000 28018KT P6SM SKC

warning FAA Advisories

  • Ground Delay: low ceilings (avg 1 hour and 5 minutes)

flight Live Traffic

flight_takeoff 264 Departures
flight_land 282 Arrivals

Recent history last 14

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-28 A12B2B BOS → SFO May 28, 22:25 UTCMay 28, 22:45 UTC20m - -
2026-05-28 A12B2B BOS → SFO May 28, 22:33 UTCMay 29, 00:03 UTC1h 30m +33m +20m
2026-05-26 A55017 BOS → SFO May 26, 19:55 UTCMay 26, 21:49 UTC1h 55m - -
2026-05-24 A5C694 BOS → SFO May 24, 14:50 UTCMay 24, 17:50 UTC3h 0m - -
2026-05-22 A46D4F BOS → SFO May 22, 15:50 UTCMay 22, 16:15 UTC25m - -
2026-05-19 AB4531 BOS → SFO May 19, 17:40 UTCMay 19, 18:20 UTC40m - -
2026-05-17 A5F581 BOS → SFO May 17, 17:30 UTCMay 17, 19:25 UTC1h 55m - -
2026-05-17 A5F581 BOS → SFO May 17, 17:32 UTCMay 17, 19:21 UTC1h 49m +77m -4m
2026-05-15 A2B10C BOS → SFO May 15, 13:35 UTCMay 15, 15:35 UTC1h 59m - -
2026-05-15 A2B10C BOS → SFO May 15, 13:33 UTCMay 15, 15:28 UTC1h 55m +63m +4m
2026-05-05 A39BFA BOS → SFO May 5, 23:10 UTCMay 6, 02:05 UTC2h 55m - -
2026-05-03 A94B6B BOS → SFO May 3, 23:35 UTCMay 4, 00:25 UTC50m - -
2026-04-26 A8A4C7 BOS → SFO Apr 26, 21:20 UTCApr 27, 00:30 UTC3h 10m - -
2026-04-15 AC64CF BOS → SFO Apr 15, 10:30 UTCApr 15, 10:40 UTC10m - -

Performance history

Flights tracked
14
Avg arrival delay
+7m
On-time arrival
67% 67% on time
Aircraft used
11

Monthly activity 2 months

Month Flights tracked
May 2026 12
April 2026 2

UAL3915 frequently asked

Where does flight UAL3915 fly?
UAL3915 (United Airlines) flies from BOS to SFO. View the full route page.
How long is flight UAL3915?
Based on observed flights, UAL3915 takes on average 1h 37m from takeoff to landing.
How often does UAL3915 fly?
UAL3915 has been observed flying several times a week in our tracking data. We've recorded 14 flights under this callsign.
Is flight UAL3915 usually on time?
Across recent flights, UAL3915 arrives with an average 7-minute delay. 67% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL3915?
UAL3915 has been operated by 11 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL3915 live?
Yes. When UAL3915 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.