(UA) United Airlines 4866 Flight Details
On time | Scheduled
Departure
ROA
Roanoke-Blacksburg Regional Airport, VA, US
Flight Gate Times
01-Jan-2026
Scheduled
19:55
EST
Actual
--
Total Departure Delay: -
Flight Runway Times
01-Jan-2026
Scheduled
--
Actual
--
Runway Delay: -
Terminal
-
Gate
-
Craft Type
Embraer RJ135 / RJ140 / RJ145
ERJ
Flight Time
Scheduled
1h 16m
Arrival
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
01-Jan-2026
Scheduled
21:11
EST
Actual
--
Total Arrival Delay: -
Flight Runway Times
01-Jan-2026
Scheduled
--
Actual
--
Runway Delay: -
Terminal
-
Gate
-
Baggage Claim
-
Tail Number
-
Flight Time
Estimated
1h 16m
Flight Notes
Operated by CommuteAir on behalf of United Airlines
Also marketed as (AC) Air Canada 3991, (AV) Avianca 2099, (LH) Lufthansa 8620
Event Timeline
Date
Event
Data Updated
31 Dec
05:11
00:11
00:11
Equipment Adjustment
Actual Equipment changed to ERJ
29 Dec
18:45
13:45
13:45
Record Created
29 Dec
18:45
13:45
13:45
Time Adjustment
Scheduled Gate Departure changed to Jan-01-2026 7:55 PM
Scheduled Gate Arrival changed to Jan-01-2026 9:11 PM
Scheduled Equipment changed to ERJ