Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL2643

Operated by United Airlines

Live map

Live map filtered to UAL2643. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
07:42 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
190° / 12 kt
Visibility
10 SM
Ceiling
FEW 8,000 ft, FEW 20,000 ft
Temp / Dew
15°C / 2°C
Altimeter
29.83 inHg

Obs: 2026-10-12T12:53:00.000Z

Raw METAR / TAF 
METAR KDEN 121253Z 19012KT 10SM FEW080 FEW200 15/02 A2983 RMK AO2 SLP032 T01500017

TAF KDEN 121136Z 1212/1318 20015KT P6SM SKC FM121600 23014G21KT P6SM SKC FM130100 18009KT P6SM SKC FM130500 35010KT P6SM FEW020 SCT040 FM131000 02008KT P6SM BKN020 FM131600 05007KT P6SM FEW020 BKN040

flight Live Traffic

flight_takeoff 217 Departures
flight_land 369 Arrivals

Arrival

BOS KBOS IFR

Boston Logan International Airport

Boston, US

Local time
09:42 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
350° / 5 kt
Visibility
10 SM
Ceiling
OVC 700 ft
Temp / Dew
12°C / 10°C
Altimeter
29.78 inHg

Obs: 2026-10-12T13:01:00.000Z

Raw METAR / TAF 
SPECI KBOS 121301Z 35005KT 10SM OVC007 12/10 A2978 RMK AO2 T01170100

TAF KBOS 121120Z 1212/1318 36009KT 6SM BR OVC006 FM121400 36009KT P6SM OVC015 FM121700 35005KT P6SM SCT040 TEMPO 1217/1219 BKN030 FM130400 04010KT P6SM OVC030 FM131000 07010KT P6SM -RA OVC008

warning FAA Advisories

  • Ground Delay: low ceilings (avg 1 hour and 15 minutes)

flight Live Traffic

flight_takeoff 229 Departures
flight_land 198 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A837A7 DEN → BOS Jul 26, 17:40 UTCJul 26, 20:55 UTC3h 15m - -
2026-07-26 A0B845 DEN → BOS Jul 26, 11:35 UTCJul 26, 13:30 UTC1h 55m - -
2026-07-25 AA7ABD DEN → BOS Jul 25, 16:06 UTCJul 25, 19:13 UTC3h 7m +21m -22m
2026-07-25 AA7ABD DEN → BOS Jul 25, 16:05 UTCJul 25, 19:15 UTC3h 10m - -
2026-07-25 A0B803 DEN → BOS Jul 25, 11:45 UTCJul 25, 13:40 UTC1h 55m - -
2026-07-24 A4943E DEN → BOS Jul 24, 16:10 UTCJul 24, 19:30 UTC3h 20m - -
2026-07-24 A0B81E DEN → BOS Jul 24, 11:40 UTCJul 24, 13:30 UTC1h 50m - -
2026-07-23 A445F2 DEN → BOS Jul 23, 16:10 UTCJul 23, 19:20 UTC3h 10m - -
2026-07-23 A0B7B8 DEN → BOS Jul 23, 11:45 UTCJul 23, 13:35 UTC1h 50m - -
2026-07-22 A91535 DEN → BOS Jul 22, 16:05 UTCJul 22, 19:15 UTC3h 10m - -
2026-07-22 A0B821 DEN → BOS Jul 22, 11:45 UTCJul 22, 13:40 UTC1h 55m - -
2026-07-21 A41E74 DEN → BOS Jul 21, 16:00 UTCJul 21, 19:15 UTC3h 15m - -
2026-07-21 A0B88A DEN → BOS Jul 21, 11:45 UTCJul 21, 13:35 UTC1h 50m - -
2026-07-20 A44560 DEN → BOS Jul 20, 17:15 UTCJul 20, 20:25 UTC3h 10m - -
2026-07-20 A0B846 DEN → BOS Jul 20, 11:40 UTCJul 20, 13:30 UTC1h 50m - -
2026-07-19 AA2BC1 DEN → BOS Jul 19, 16:00 UTCJul 19, 19:20 UTC3h 20m - -
2026-07-19 A0B88A DEN → BOS Jul 19, 11:55 UTCJul 19, 13:45 UTC1h 50m - -
2026-07-18 A5D28E DEN → BOS Jul 18, 17:25 UTCJul 18, 20:35 UTC3h 10m - -
2026-07-18 A0B845 DEN → BOS Jul 18, 11:55 UTCJul 18, 13:45 UTC1h 50m - -
2026-07-17 A4460E - Jul 17, 16:10 UTCJul 17, 19:30 UTC3h 20m - -
2026-07-17 AD22E1 - Jul 17, 11:39 UTCJul 17, 13:29 UTC1h 50m - -
2026-07-16 A885F4 DEN → BDL Jul 16, 16:06 UTCJul 16, 19:06 UTC3h 0m +21m -8m
2026-07-16 A885F4 - Jul 16, 15:55 UTCJul 16, 19:05 UTC3h 10m - -
2026-07-16 A0B802 - Jul 16, 11:40 UTCJul 16, 13:30 UTC1h 50m - -
2026-07-15 A94B2B - Jul 15, 15:55 UTCJul 15, 19:20 UTC3h 25m - -
2026-07-15 A0B88C IAH → DEN Jul 15, 11:35 UTCJul 15, 13:30 UTC1h 55m - -
2026-07-14 A76028 DEN → BDL Jul 14, 16:06 UTCJul 14, 19:17 UTC3h 11m +21m -14m
2026-07-14 A76028 DEN → BDL Jul 14, 15:55 UTCJul 14, 19:20 UTC3h 25m - -
2026-07-14 A0B81D - Jul 14, 11:50 UTCJul 14, 14:05 UTC2h 15m - -
2026-07-13 A83781 DEN → BDL Jul 13, 16:00 UTCJul 13, 19:30 UTC3h 30m - -

Performance history

Flights tracked
249 showing last 30
Avg arrival delay
-15m
On-time arrival
100% 100% on time
Aircraft used
25

Monthly activity 4 months

Month Flights tracked
July 2026 59
June 2026 68
May 2026 71
April 2026 51

UAL2643 frequently asked

Where does flight UAL2643 fly?
UAL2643 (United Airlines) flies from DEN to BOS. View the full route page.
How long is flight UAL2643?
Based on observed flights, UAL2643 takes on average 2h 39m from takeoff to landing.
How often does UAL2643 fly?
UAL2643 has been observed flying several times a week in our tracking data. We've recorded 249 flights under this callsign.
Is flight UAL2643 usually on time?
Across recent flights, UAL2643 arrives 15 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL2643?
UAL2643 has been operated by 25 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL2643 live?
Yes. When UAL2643 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.