Live tracking not available yet
UA4233 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
BUF
Buffalo Niagara International Airport
Buffalo
Scheduled 6:09 AM
IAD
Washington Dulles International Airport
Dulles
Scheduled 7:35 AM
1h 26m flight time
Sun
Recent Flights
Last 2 observedMar 08
Sun
CRP
IAH
Dep 07:35:00
(actual 08:58:00)
ERJ
Boarding
Mar 07
Sat
CRP
IAH
Dep 07:35:00
(actual 07:50:00)
ERJ
Boarding
Schedule
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Upcoming
Sun, Mar 22
Schedule valid
Mar 29 —
Mar 29, 2026