
(DL) Delta Air Lines 3999 Flight Details
On time | Scheduled
Departure
SEA
Seattle-Tacoma International Airport, WA, US
Flight Gate Times
25-Aug-2026
Scheduled
14:30
PDT
Actual
--
Total Departure Delay: -
Flight Runway Times
25-Aug-2026
Scheduled
15:05
PDT
Actual
--
Runway Delay: -
Terminal
-
Gate
A8
Craft Type
Embraer 175
E75
Flight Time
Scheduled
2h 52m
Arrival
SNA
John Wayne Airport, CA, US
Flight Gate Times
25-Aug-2026
Scheduled
17:22
PDT
Actual
--
Total Arrival Delay: -
Flight Runway Times
25-Aug-2026
Scheduled
17:24
PDT
Actual
--
Runway Delay: -
Terminal
A
Gate
4
Baggage Claim
2
Tail Number
N253SY
Flight Time
Estimated
2h 52m
Flight Notes
Operated by SkyWest Airlines on behalf of Delta Air Lines
Also marketed as (KE) Korean Air 3105, (KL) KLM 6284
Event Timeline
Date
Event
Data Updated
25 Aug
10:40
03:40
03:40
Gate Adjustment
Departure Gate changed from A2 to A8
25 Aug
07:13
00:13
00:13
Gate Adjustment
Arrival Gate changed from 2 to 4
Baggage changed to 2
25 Aug
00:53
17:53
17:53
Time Adjustment
Scheduled Runway Departure changed to Aug-25-2026 3:05 PM
Scheduled Runway Arrival changed to Aug-25-2026 5:24 PM
24 Aug
19:20
12:20
12:20
Gate Adjustment
Departure Gate changed from A12 to A2
24 Aug
17:01
10:01
10:01
Equipment Adjustment
Tail Number changed from N310SY to N253SY
24 Aug
03:48
20:48
20:48
Equipment Adjustment
Tail Number changed from N323SY to N310SY
23 Aug
20:57
13:57
13:57
Gate Adjustment
Departure Gate changed from B7 to A12
Arrival Gate changed from 4 to 2
23 Aug
13:58
06:58
06:58
Gate Adjustment
Departure Gate changed from S3 to B7
Tail Number changed from N607CZ to N323SY
23 Aug
10:44
03:44
03:44
Equipment Adjustment
Tail Number changed from N323SY to N607CZ
23 Aug
08:20
01:20
01:20
Gate Adjustment
Departure Gate changed from S2 to S3
23 Aug
08:18
01:18
01:18
Gate Adjustment
Departure Gate changed from S3 to S2
23 Aug
08:14
01:14
01:14
Gate Adjustment
Departure Gate changed to S3
Arrival Gate changed to 4
Arrival Terminal changed to A
Tail Number changed to N323SY
Actual Equipment changed to E75
22 Aug
18:20
11:20
11:20
Record Created
22 Aug
18:20
11:20
11:20
Time Adjustment
Scheduled Gate Departure changed to Aug-25-2026 2:30 PM
Scheduled Gate Arrival changed to Aug-25-2026 5:22 PM
Scheduled Equipment changed to E7W