Live tracking not available yet
UA599 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
IAD
Washington Dulles International Airport
Dulles
Gate D9 Scheduled 5:10 PM
Actual 5:27 PM
DEN
Denver International Airport
Denver
Gate A21 Scheduled 7:31 PM
Actual 7:00 PM
Baggage claim 16
4h 21m flight time
Daily
Recent Flights
Last 1 observedMar 08
Sun
IAD
DEN
Dep 17:35:00
(actual 17:26:00)
739
In Air
Schedule
Operates
Daily
Departure
5:10 PM
Arrival
7:31 PM
Duration
4h 21m
Aircraft
Boeing 737-900
Gate
D9
A21
Actual
17:27
19:00
Baggage
Carousel 16
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Upcoming
Fri, Mar 20
Sat, Mar 21
Sun, Mar 22
Mon, Mar 23
Tue, Mar 24
Wed, Mar 25
Thu, Mar 26
Schedule valid
Mar 17 —
Jun 18, 2026