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(DL) Delta Air Lines 3999 Flight Details

Delayed by 45m | Scheduled

Departure

SEA

Seattle-Tacoma International Airport, WA, US

Flight Gate Times

03-Sep-2026

Scheduled

14:30

 PDT

Estimated

15:15

 PDT

Total Departure Delay: 45 mins

Flight Runway Times

03-Sep-2026

Scheduled

15:38

 PDT

Actual

--

Runway Delay: -

Terminal

-

Gate

B5A

Craft Type

Embraer 175

E75

Flight Time

Scheduled

2h 52m

Arrival

SNA

John Wayne Airport, CA, US

Flight Gate Times

03-Sep-2026

Scheduled

17:22

 PDT

Estimated

18:07

 PDT

Total Arrival Delay: 45 mins

Flight Runway Times

03-Sep-2026

Scheduled

18:00

 PDT

Actual

--

Runway Delay: -

Terminal

A

Gate

4

Baggage Claim

2

Tail Number

N297SY

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

Time

Date

UTC

Event

Data Updated

3 Sep

13:28

Scheduled Runway Departure changed from Sep-03-2026 3:50 PM to Sep-03-2026 3:38 PM

Scheduled Runway Arrival changed from Sep-03-2026 6:03 PM to Sep-03-2026 6:00 PM

3 Sep

13:28

Departure Gate changed from B4 to B5A

3 Sep

12:15

Scheduled Runway Departure changed from Sep-03-2026 3:05 PM to Sep-03-2026 3:50 PM

Scheduled Runway Arrival changed from Sep-03-2026 5:18 PM to Sep-03-2026 6:03 PM

3 Sep

12:15

Estimated Gate Departure changed to Sep-03-2026 3:15 PM

3 Sep

12:15

Estimated Gate Arrival changed to Sep-03-2026 6:07 PM

3 Sep

10:36

Departure Gate changed from S1 to B4

3 Sep

07:10

Baggage changed to 2

2 Sep

21:36

Scheduled Runway Departure changed to Sep-03-2026 3:05 PM

Scheduled Runway Arrival changed to Sep-03-2026 5:18 PM

2 Sep

19:33

Departure Gate changed from S6 to S1

2 Sep

12:19

Departure Gate changed from B6 to S6

2 Sep

12:08

Departure Gate changed from B3 to B6

2 Sep

10:35

Departure Gate changed from A10 to B3

2 Sep

05:02

Tail Number changed from N298SY to N297SY

2 Sep

05:01

Tail Number changed from N296SY to N298SY

2 Sep

03:39

Tail Number changed from N309SY to N296SY

1 Sep

18:40

Departure Gate changed from A2 to A10

Tail Number changed to N309SY

Actual Equipment changed to E75

31 Aug

21:19

Arrival Gate changed from 3 to 4

31 Aug

20:48

Departure Gate changed to A2

Arrival Gate changed to 3

Arrival Terminal changed to A

31 Aug

18:20

31 Aug

18:20

Scheduled Gate Departure changed to Sep-03-2026 2:30 PM

Scheduled Gate Arrival changed to Sep-03-2026 5:22 PM

Scheduled Equipment changed to E7W