(DL) Delta Air Lines 3999 Flight Details
On time | Scheduled
Departure
SEA
Seattle-Tacoma International Airport, WA, US
Flight Gate Times
20-Jul-2026
Scheduled
13:54
PDT
Actual
--
Total Departure Delay: -
Flight Runway Times
20-Jul-2026
Scheduled
14:27
PDT
Actual
--
Runway Delay: -
Terminal
-
Gate
B4
Craft Type
Embraer 175
E75
Flight Time
Scheduled
3h 1m
Arrival
SNA
John Wayne Airport, CA, US
Flight Gate Times
20-Jul-2026
Scheduled
16:55
PDT
Estimated
16:33
PDT
Total Arrival Delay: -
Flight Runway Times
20-Jul-2026
Scheduled
16:49
PDT
Actual
--
Runway Delay: -
Terminal
A
Gate
2
Baggage Claim
-
Tail Number
N241SY
Flight Time
Estimated
2h 39m
Flight Notes
Operated by SkyWest Airlines on behalf of Delta Air Lines
Also marketed as (KE) Korean Air 3091, (KL) KLM 7830, (WS) WestJet 8104
Event Timeline
Date
Event
Data Updated
19 Jul
22:01
15:01
15:01
Gate Adjustment
Arrival Gate changed from 4 to 2
19 Jul
20:56
13:56
13:56
Time Adjustment
Scheduled Runway Departure changed to Jul-20-2026 2:27 PM
Scheduled Runway Arrival changed to Jul-20-2026 4:49 PM
19 Jul
16:31
09:31
09:31
Gate Adjustment
Departure Gate changed from S2 to B4
Tail Number changed from N257SY to N241SY
19 Jul
08:54
01:54
01:54
Time Adjustment
Estimated Gate Arrival changed to Jul-20-2026 4:33 PM
Tail Number changed from N244SY to N257SY
18 Jul
18:13
11:13
11:13
Gate Adjustment
Departure Gate changed from B4 to S2
Tail Number changed from N257SY to N244SY
18 Jul
04:02
21:02
21:02
Equipment Adjustment
Tail Number changed from N306SY to N257SY
17 Jul
23:53
16:53
16:53
Equipment Adjustment
Tail Number changed from N282SY to N306SY
17 Jul
23:52
16:52
16:52
Gate Adjustment
Departure Gate changed to B4
Arrival Gate changed to 4
Arrival Terminal changed to A
Tail Number changed to N282SY
Actual Equipment changed to E75
17 Jul
18:21
11:21
11:21
Record Created
17 Jul
18:21
11:21
11:21
Time Adjustment
Scheduled Gate Departure changed to Jul-20-2026 1:54 PM
Scheduled Gate Arrival changed to Jul-20-2026 4:55 PM
Scheduled Equipment changed to E7W