(DL) Delta Air Lines 3999 Flight Details
On time | Scheduled
Departure
SEA
Seattle-Tacoma International Airport, WA, US
Flight Gate Times
29-Apr-2026
Scheduled
12:13
PDT
Actual
--
Total Departure Delay: -
Flight Runway Times
29-Apr-2026
Scheduled
12:28
PDT
Actual
--
Runway Delay: -
Terminal
-
Gate
A14
Craft Type
Embraer 175
E75
Flight Time
Scheduled
2h 59m
Arrival
SNA
John Wayne Airport, CA, US
Flight Gate Times
29-Apr-2026
Scheduled
15:12
PDT
Estimated
15:03
PDT
Total Arrival Delay: -
Flight Runway Times
29-Apr-2026
Scheduled
14:39
PDT
Actual
--
Runway Delay: -
Terminal
A
Gate
4
Baggage Claim
-
Tail Number
N306SY
Flight Time
Estimated
2h 50m
Flight Notes
Operated by SkyWest Airlines on behalf of Delta Air Lines
Also marketed as (KE) Korean Air 3091, (WS) WestJet 7350
Event Timeline
Date
Event
Data Updated
28 Apr
19:16
12:16
12:16
Time Adjustment
Scheduled Runway Departure changed to Apr-29-2026 12:28 PM
Scheduled Runway Arrival changed to Apr-29-2026 2:39 PM
28 Apr
13:56
06:56
06:56
Gate Adjustment
Departure Gate changed from B4 to A14
28 Apr
10:34
03:34
03:34
Gate Adjustment
Departure Gate changed from B5A to B4
28 Apr
07:16
00:16
00:16
Time Adjustment
Estimated Gate Arrival changed to Apr-29-2026 3:03 PM
27 Apr
16:59
09:59
09:59
Gate Adjustment
Departure Gate changed from A7 to B5A
27 Apr
14:51
07:51
07:51
Gate Adjustment
Departure Gate changed from A13 to A7
27 Apr
12:43
05:43
05:43
Gate Adjustment
Departure Gate changed from A6 to A13
27 Apr
10:34
03:34
03:34
Gate Adjustment
Departure Gate changed from S2 to A6
Tail Number changed to N306SY
Actual Equipment changed to E75
27 Apr
03:53
20:53
20:53
Gate Adjustment
Departure Gate changed to S2
Arrival Gate changed to 4
Arrival Terminal changed to A
26 Apr
18:19
11:19
11:19
Record Created
26 Apr
18:19
11:19
11:19
Time Adjustment
Scheduled Gate Departure changed to Apr-29-2026 12:13 PM
Scheduled Gate Arrival changed to Apr-29-2026 3:12 PM
Scheduled Equipment changed to E7W