Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL721

Operated by UAL

Live map

Live map filtered to UAL721. Shown when the flight is currently airborne.

Route airports View route page →

Departure

BOS KBOS VFR

Boston Logan International Airport

Boston, US

Local time
06:35 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
250° / 11 kt
Visibility
10 SM
Ceiling
FEW 14,000 ft, FEW 25,000 ft
Temp / Dew
22°C / 16°C
Altimeter
29.98 inHg

Obs: 2026-07-14T09:54:00.000Z

Raw METAR / TAF 
METAR KBOS 140954Z 25011KT 10SM FEW140 FEW250 22/16 A2998 RMK AO2 SLP151 T02220161 $

TAF KBOS 140824Z 1408/1512 23015G24KT P6SM SCT250 FM141600 23017G28KT P6SM BKN200 FM150100 25011KT P6SM SCT050 BKN200 PROB30 1509/1512 5SM -TSRA BKN050CB

flight Live Traffic

flight_takeoff 241 Departures
flight_land 312 Arrivals

Arrival

IAD KIAD VFR

Washington Dulles International Airport

Dulles, US

Local time
06:35 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
312 ft
Coordinates
38.9445, -77.4558

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
18°C / 18°C
Altimeter
30.17 inHg

Obs: 2026-07-14T09:52:00.000Z

Raw METAR / TAF 
METAR KIAD 140952Z 00000KT 10SM CLR 18/18 A3017 RMK AO2 SLP214 T01830178 $

TAF KIAD 140841Z 1409/1512 18005KT P6SM SKC FM141600 22006KT P6SM FEW050

flight Live Traffic

flight_takeoff 149 Departures
flight_land 216 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-13 AAA244 BOS → IAD Jul 13, 18:40 UTCJul 13, 19:45 UTC1h 5m - -
2026-07-12 AA7F27 BOS → IAD Jul 12, 19:01 UTCJul 12, 20:15 UTC1h 15m - -
2026-07-11 A44560 BOS → IAD Jul 11, 18:55 UTCJul 11, 20:05 UTC1h 10m - -
2026-07-10 AA2BC4 BOS → IAD Jul 10, 19:35 UTCJul 10, 20:55 UTC1h 20m - -
2026-07-10 A836FB BOS → IAD Jul 10, 00:55 UTCJul 10, 02:10 UTC1h 15m - -
2026-07-08 A837A6 BOS → IAD Jul 8, 18:25 UTCJul 8, 19:35 UTC1h 10m - -
2026-07-07 A494C5 BOS → IAD Jul 7, 18:30 UTCJul 7, 19:45 UTC1h 15m - -
2026-07-06 A49441 BOS → IAD Jul 6, 18:30 UTCJul 6, 19:40 UTC1h 10m - -
2026-07-06 A49441 BOS → IAD Jul 6, 18:31 UTCJul 6, 19:39 UTC1h 8m +16m +1m
2026-07-05 A445F0 - Jul 5, 18:45 UTCJul 5, 19:55 UTC1h 10m - -
2026-07-04 A8D489 BOS → IAD Jul 4, 18:40 UTCJul 4, 19:40 UTC1h 0m - -
2026-07-03 A4943F BOS → IAD Jul 3, 18:55 UTCJul 3, 20:00 UTC1h 5m - -
2026-07-02 A445EE BOS → IAD Jul 2, 18:50 UTCJul 2, 20:00 UTC1h 10m - -
2026-07-01 A94B0A BOS → IAD Jul 1, 18:50 UTCJul 1, 20:30 UTC1h 40m - -
2026-06-30 A44585 BOS → IAD Jun 30, 18:40 UTCJun 30, 19:45 UTC1h 5m - -
2026-06-29 A46D8F BOS → IAD Jun 29, 18:25 UTCJun 29, 19:39 UTC1h 15m - -
2026-06-28 A8AD4E BOS → IAD Jun 28, 18:49 UTCJun 28, 20:09 UTC1h 20m - -
2026-06-27 A8D5A4 BOS → IAD Jun 27, 18:31 UTCJun 27, 19:44 UTC1h 13m +16m -20m
2026-06-27 A8D5A4 BOS → IAD Jun 27, 18:35 UTCJun 27, 19:45 UTC1h 10m - -
2026-06-26 A46D95 BOS → IAD Jun 26, 19:09 UTCJun 26, 20:15 UTC1h 5m - -
2026-06-26 A46D95 BOS → IAD Jun 26, 18:31 UTCJun 26, 20:14 UTC1h 43m +16m -56m
2026-06-25 A4460D BOS → IAD Jun 25, 18:31 UTCJun 25, 19:53 UTC1h 22m +16m -33m
2026-06-25 A4460D - Jun 25, 18:45 UTCJun 25, 19:59 UTC1h 15m - -
2026-06-24 A46D47 BOS → IAD Jun 24, 18:31 UTCJun 24, 19:39 UTC1h 8m +16m -4m
2026-06-24 A46D47 BOS → IAD Jun 24, 18:29 UTCJun 24, 19:44 UTC1h 15m - -
2026-06-23 A12E80 BOS → IAD Jun 23, 18:25 UTCJun 23, 20:10 UTC1h 45m - -
2026-06-23 A12E80 BOS → IAD Jun 23, 18:31 UTCJun 23, 19:58 UTC1h 27m +16m -13m
2026-06-22 A81005 BOS → IAD Jun 22, 18:35 UTCJun 22, 19:54 UTC1h 20m - -
2026-06-21 A837A7 BOS → IAD Jun 21, 18:35 UTCJun 21, 19:50 UTC1h 15m - -
2026-06-20 A8FC09 BOS → IAD Jun 20, 18:36 UTCJun 20, 19:53 UTC1h 17m +21m -17m

Performance history

Flights tracked
126 showing last 30
Avg arrival delay
-20m
On-time arrival
100% 100% on time
Aircraft used
24

Monthly activity 4 months

Month Flights tracked
July 2026 14
June 2026 42
May 2026 43
April 2026 27

UAL721 frequently asked

Where does flight UAL721 fly?
UAL721 (UAL) flies from BOS to IAD. View the full route page.
How long is flight UAL721?
Based on observed flights, UAL721 takes on average 1h 16m from takeoff to landing.
How often does UAL721 fly?
UAL721 has been observed flying several times a week in our tracking data. We've recorded 126 flights under this callsign.
Is flight UAL721 usually on time?
Across recent flights, UAL721 arrives 20 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL721?
UAL721 has been operated by 24 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL721 live?
Yes. When UAL721 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.