12 Feb
UA721
EST. DEPART IN 1d
22:45
Washington, VA (IAD)
04:22
Las Vegas, NV (LAS)
05h37m
N38443 (B739)
3317 km
Estimated
22:45
In 1 day
Estimated
04:22
In 2 days
UA721
UAL721
EST. DEPART IN 1d
Thursday, February 12 2026
17:45 EST
ON-TIME
Scheduled 17:45
Thursday, February 12 2026
20:22 PST
Scheduled 20:22
Flight info
Airline/Operator
Duration
05h37m
Distance
3317 km
Departure Gate
-
Arrival Gate
D54
Departure Terminal
-
Arrival Terminal
3
Position Info
Latitude
-
Longitude
-
Altitude
-
Ground Speed
Wind
Air Temperature
Vertical Speed
Heading
-
Squawk
-
Source
-
Station
-
FIR
Aircraft Info
Aircraft Model
Registration
Mode-S
-
Serial Number
-
Aircraft Age
Owner
Last Activity
6 hours ago
Last Known Location
Washington, VA, United States
Last Flight
Aircraft Type
Nr. Engines
Nr. Seats
Weight Class
Cruising Speed
Engine
Engine Type
Aircraft Category
Registrant Type
Airworthiness Class
Operation Types
Certificate Issue Date
Registration Status
Flight Activity
  • Future
  • 13 Feb
    UA721
    SCHEDULED IN 2d
    22:45
    Washington, VA (IAD)
    04:22
    Las Vegas, NV (LAS)
    05h37m
    B739
    3317 km
  • 13 Feb
    UA721
    SCHEDULED IN 2d
    19:20
    Boston, MA (BOS)
    21:04
    Washington, VA (IAD)
    01h44m
    B38M
    664 km
  • 12 Feb
    UA721
    EST. DEPART IN 1d
    22:45
    Washington, VA (IAD)
    04:22
    Las Vegas, NV (LAS)
    05h37m
    N38443 (B739)
    3317 km
    Estimated
    22:45
    In 1 day
    Estimated
    04:22
    In 2 days
  • 12 Feb
    UA721
    EST. DEPART IN 1d
    19:20
    Boston, MA (BOS)
    21:04
    Washington, VA (IAD)
    01h44m
    N17373 (B38M)
    664 km
    Estimated
    19:20
    In 1 day
    Estimated
    21:04
    In 1 day
  • 11 Feb
    UA721
    EST. DEPART IN 5h 13m
    19:20
    Boston, MA (BOS)
    21:06
    Washington, VA (IAD)
    01h46m
    N38451 (B739)
    664 km
    Estimated
    19:20
    In 5 hours
    Estimated
    21:06
    In 7 hours
  • Past
  • 10 Feb
    UA721
    LANDED 15h 44m AGO
    20:42
    Boston, MA (BOS)
    22:22
    Washington, VA (IAD)
    01h11m
    N75432 (B739)
    664 km
    Departed
    20:42
    17 hours ago
    Arrived
    22:22
    16 hours ago
  • 9 Feb
    UA721
    LANDED 1d AGO
    19:16
    Boston, MA (BOS)
    20:55
    Washington, VA (IAD)
    01h13m
    N68453 (B739)
    664 km
    Departed
    19:16
    2 days ago
    Arrived
    20:55
    2 days ago
  • 8 Feb
    UA721
    LANDED 2d AGO
    19:14
    Boston, MA (BOS)
    21:02
    Washington, VA (IAD)
    01h13m
    N831UA (A319)
    664 km
    Departed
    19:14
    3 days ago
    Arrived
    21:02
    3 days ago
  • 7 Feb
    UA721
    LANDED 3d AGO
    21:34
    Boston, MA (BOS)
    23:24
    Washington, VA (IAD)
    01h12m
    N62894 (B739)
    664 km
    Departed
    21:34
    4 days ago
    Arrived
    23:24
    4 days ago
  • 6 Feb
    UA721
    LANDED 4d AGO
    19:14
    Boston, MA (BOS)
    20:45
    Washington, VA (IAD)
    01h13m
    N69885 (B739)
    664 km
    Departed
    19:14
    5 days ago
    Arrived
    20:45
    5 days ago
  • 5 Feb
    UA721
    LANDED 5d AGO
    19:25
    Boston, MA (BOS)
    20:55
    Washington, VA (IAD)
    01h10m
    N27477 (B739)
    664 km
    Departed
    19:25
    6 days ago
    Arrived
    20:55
    6 days ago
  • 4 Feb
    UA721
    LANDED 6d AGO
    19:09
    Boston, MA (BOS)
    20:43
    Washington, VA (IAD)
    01h11m
    N67845 (B739)
    664 km
    Departed
    19:09
    7 days ago
    Arrived
    20:43
    7 days ago
DateOriginSTDATDDestinationSTAAircraftDelayStatusDurationReplay
Future
2026 Feb 13Washington, VA (IAD/KIAD)
17:45 EST
Las Vegas, NV (LAS/KLAS)
20:22 PST
B739
Scheduled
05h37m
2026 Feb 13Boston, MA (BOS/KBOS)
14:20 EST
Washington, VA (IAD/KIAD)
16:04 EST
B38M
Scheduled
01h44m
2026 Feb 12Washington, VA (IAD/KIAD)
17:45 EST
Las Vegas, NV (LAS/KLAS)
20:22 PST
B739 (N38443)
Estimated
05h37m
2026 Feb 12Boston, MA (BOS/KBOS)
14:20 EST
Washington, VA (IAD/KIAD)
16:04 EST
B38M (N17373)
Estimated
01h44m
2026 Feb 11Boston, MA (BOS/KBOS)
14:20 EST
Washington, VA (IAD/KIAD)
16:06 EST
B739 (N38451)
Estimated
01h46m
Past
2026 Feb 10Boston, MA (BOS/KBOS)
14:20 EST
15:42 EST
Washington, VA (IAD/KIAD)
16:06 EST
B739 (N75432)
Landed 17:22 EST
Time aircraft arrives at gate derived from company/airport information
01h11m
2026 Feb 9Boston, MA (BOS/KBOS)
14:20 EST
14:16 EST
Washington, VA (IAD/KIAD)
16:06 EST
B739 (N68453)
Landed 15:55 EST
Time aircraft arrives at gate derived from company/airport information
01h13m
2026 Feb 8Boston, MA (BOS/KBOS)
14:20 EST
14:14 EST
Washington, VA (IAD/KIAD)
16:06 EST
A319 (N831UA)
Landed 16:02 EST
Time aircraft arrives at gate derived from company/airport information
01h13m
2026 Feb 7Boston, MA (BOS/KBOS)
14:27 EST
16:34 EST
Washington, VA (IAD/KIAD)
16:13 EST
B739 (N62894)
Landed 18:24 EST
Time aircraft arrives at gate derived from company/airport information
01h12m
2026 Feb 6Boston, MA (BOS/KBOS)
14:20 EST
14:14 EST
Washington, VA (IAD/KIAD)
16:06 EST
B739 (N69885)
Landed 15:45 EST
Time aircraft arrives at gate derived from company/airport information
01h13m
2026 Feb 5Boston, MA (BOS/KBOS)
14:20 EST
14:25 EST
Washington, VA (IAD/KIAD)
16:06 EST
B739 (N27477)
Landed 15:55 EST
Time aircraft arrives at gate derived from company/airport information
01h10m
2026 Feb 4Boston, MA (BOS/KBOS)
14:20 EST
14:09 EST
Washington, VA (IAD/KIAD)
16:06 EST
B739 (N67845)
Landed 15:43 EST
Time aircraft arrives at gate derived from company/airport information
01h11m

Flight history for UA721 is available for a period over 7 days under our Basic subscription. More details here
More airport data is available for purchase. Please check our On Demand API.