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 IFR

Boston Logan International Airport

Boston, US

Local time
05:03 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
190° / 5 kt
Visibility
10 SM
Ceiling
BKN 700 ft, OVC 15,000 ft
Temp / Dew
22°C / 21°C
Altimeter
29.96 inHg

Obs: 2026-08-28T08:54:00.000Z

Raw METAR / TAF 
METAR KBOS 280854Z 19005KT 10SM BKN007 OVC150 22/21 A2996 RMK AO2 SLP144 T02170211 56008

TAF KBOS 280529Z 2806/2912 18006KT P6SM FEW018 BKN220 FM280800 20004KT P6SM BKN030 TEMPO 2808/2811 BKN010 FM281200 19007KT P6SM SCT025 FM281500 12005KT P6SM BKN050 PROB30 2818/2821 4SM TSRA OVC040CB FM282300 21004KT P6SM BKN100 FM290300 33007KT P6SM SCT090

flight Live Traffic

flight_takeoff 54 Departures
flight_land 88 Arrivals

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
02:03 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
290° / 14 kt
Visibility
10 SM
Ceiling
FEW 400 ft, BKN 20,000 ft
Temp / Dew
15°C / 13°C
Altimeter
29.94 inHg

Obs: 2026-08-28T08:56:00.000Z

Raw METAR / TAF 
METAR KSFO 280856Z 29014KT 10SM FEW004 BKN200 15/13 A2994 RMK AO2 SLP139 T01500128 58002 $

TAF KSFO 280830Z 2809/2912 30013KT P6SM FEW004 BKN200 FM282000 29014KT P6SM VCSH BKN050 OVC100 FM290300 29010KT P6SM SCT010 BKN120 FM291000 29007KT P6SM BKN010

flight Live Traffic

flight_takeoff 95 Departures
flight_land 45 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A895EB BOS → SFO Jul 26, 20:40 UTCJul 26, 22:30 UTC1h 50m - -
2026-07-23 A57796 BOS → SFO Jul 23, 13:30 UTCJul 23, 14:30 UTC1h 0m - -
2026-07-21 A98D7E BOS → SFO Jul 21, 21:50 UTCJul 22, 00:05 UTC2h 15m - -
2026-07-21 A98D7E BOS → SFO Jul 21, 21:40 UTCJul 22, 00:03 UTC2h 23m +190m +18m
2026-07-21 A98D7E BOS → SFO Jul 21, 20:35 UTCJul 21, 21:00 UTC25m - -
2026-07-20 A8D3B4 BOS → SFO Jul 20, 23:50 UTCJul 21, 01:20 UTC1h 30m - -
2026-07-20 A8D3B4 BOS → SFO Jul 20, 23:18 UTCJul 21, 01:15 UTC1h 57m +78m -36m
2026-07-19 A10E23 BOS → SFO Jul 19, 01:00 UTCJul 19, 02:15 UTC1h 15m - -
2026-07-17 AA568F - Jul 17, 14:50 UTCJul 17, 16:59 UTC2h 10m - -
2026-07-17 AA568F SAT → DEN Jul 17, 14:42 UTCJul 17, 16:56 UTC2h 14m +102m -3m
2026-07-15 A5B1A8 - Jul 15, 21:55 UTCJul 15, 22:30 UTC35m - -
2026-07-15 A5B1A8 JAC → DEN Jul 15, 20:25 UTCJul 15, 22:26 UTC2h 1m +205m +65m
2026-07-10 AA739D - Jul 10, 09:15 UTCJul 10, 10:55 UTC1h 40m - -
2026-07-08 A8886D - Jul 8, 10:35 UTCJul 8, 19:40 UTC9h 5m - -
2026-07-06 A0BF26 - Jul 6, 06:00 UTCJul 6, 06:05 UTC5m - -
2026-07-06 A0BF26 - Jul 6, 02:35 UTCJul 6, 06:05 UTC3h 30m - -
2026-07-06 A0BF26 LAX → ORD Jul 6, 02:18 UTCJul 6, 05:43 UTC3h 25m +438m +8m
2026-07-04 A6C248 - Jul 4, 16:00 UTCJul 4, 16:50 UTC50m - -
2026-07-04 A6C248 - Jul 4, 15:05 UTCJul 4, 15:15 UTC10m - -
2026-06-28 A126C4 MCO → EWR Jun 28, 02:54 UTCJun 28, 04:55 UTC2h 0m - -
2026-06-28 A126C4 MCO → EWR Jun 28, 02:44 UTCJun 28, 04:55 UTC2h 11m +179m -11m
2026-06-15 A448D5 BOS → SFO Jun 15, 03:24 UTCJun 15, 04:30 UTC1h 5m - -
2026-06-12 A86AB5 BOS → SFO Jun 12, 17:55 UTCJun 12, 20:25 UTC2h 30m - -
2026-06-11 A2551A BOS → SFO Jun 11, 15:55 UTCJun 11, 16:45 UTC50m - -
2026-06-08 A747CB BOS → SFO Jun 8, 14:15 UTCJun 8, 17:15 UTC3h 0m - -
2026-06-04 A8F3C5 BOS → SFO Jun 4, 19:25 UTCJun 4, 19:50 UTC25m - -
2026-06-04 A8F3C5 BOS → SFO Jun 4, 18:05 UTCJun 4, 19:20 UTC1h 15m - -
2026-06-01 A0A8DF BOS → SFO Jun 1, 21:25 UTCJun 1, 22:10 UTC45m - -
2026-06-01 A0A8DF BOS → SFO Jun 1, 21:27 UTCJun 1, 22:08 UTC41m +57m -9m
2026-05-28 A12B2B BOS → SFO May 28, 22:25 UTCMay 28, 22:45 UTC20m - -

Performance history

Flights tracked
43 showing last 30
Avg arrival delay
+5m
On-time arrival
71% 71% on time
Aircraft used
19

Monthly activity 4 months

Month Flights tracked
July 2026 19
June 2026 10
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 47m 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 43 flights under this callsign.
Is flight UAL3915 usually on time?
Across recent flights, UAL3915 arrives with an average 5-minute delay. 71% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL3915?
UAL3915 has been operated by 19 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.