Live tracking not available yet
UA721 has a schedule in our database but isn't on the airport board right now. Live position data typically appears within a few hours of departure.
Flight Status
Scheduled
Route Info
BOS
Boston Logan International Airport
Boston
TB Gate B31 Scheduled 2:15 PM
Actual 2:41 PM
IAD
Washington Dulles International Airport
Dulles
Gate D21 Scheduled 3:59 PM
Actual 4:03 PM
Baggage claim 2
1h 44m flight time
Daily
Recent Flights
Last 1 observedMar 14
Sat
BOS
IAD
Dep 18:03:00
(actual 14:27:00)
38M
Boarding
Schedule
Operates
Daily
Departure
2:15 PM
Arrival
3:59 PM
Duration
1h 44m
Aircraft
Boeing 737-900
Terminal
TB
Gate
B31
D21
Actual
14:41
16:03
Baggage
Carousel 2
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Upcoming
Sat, Mar 21
Sun, Mar 22
Mon, Mar 23
Tue, Mar 24
Wed, Mar 25
Thu, Mar 26
Fri, Mar 27
Schedule valid
Mar 15 —
Jun 14, 2026