Delta Air Lines flight DL 1521: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Fri,Sun 08:05 Kansas City (MCI) 11:07 Atlanta (ATL) S
DL 1521 Non-stop Boeing 737-900 (739) 2:02 Effective 2026-02-12 through 2026-03-06
Sat 08:05 Kansas City (MCI) 11:06 Atlanta (ATL) S
DL 1521 Non-stop Airbus A319 (319) 2:01 Effective 2026-02-14 through 2026-02-28
Wed,Thu 15:50 Salt Lake City (SLC) 16:59 Jackson (JAC)
DL 1521 Non-stop Airbus A319 (319) 1:09 Valid until 2026-01-01
Mon-Fri,Sun 18:59 Las Vegas Harry Reid (LAS) 1 21:46 Seattle-Tacoma (SEA)
DL 1521 Non-stop Boeing 737-900 (739) 2:47 Effective 2026-03-08 through 2026-03-13
Mon-Fri,Sun 18:59 Las Vegas Harry Reid (LAS) 1 21:48 Seattle-Tacoma (SEA)
DL 1521 Non-stop Boeing 737-900 (739) 2:49 Effective 2026-03-15 through 2026-04-12
Mon,Thu,Fri,Sun 21:20 Santa Ana (SNA) 04:24 Atlanta (ATL) S
DL 1521 Non-stop Boeing 757-200 (75W) 4:04 Effective 2026-01-05 through 2026-01-16
The flight arrives 1 day after departure.
Mon,Thu,Fri,Sun 21:20 Santa Ana (SNA) 04:24 Atlanta (ATL) S
DL 1521 Non-stop Boeing 757-200 (75W) 4:04 Effective 2026-01-19 through 2026-02-06
The flight arrives 1 day after departure.
Mon 21:20 Santa Ana (SNA) 04:24 Atlanta (ATL) S
DL 1521 Non-stop Boeing 757-200 (75W) 4:04 Operates only on 2026-02-09
The flight arrives 1 day after departure.
Mon,Thu,Fri,Sun 21:20 Santa Ana (SNA) 04:36 Atlanta (ATL) S
DL 1521 Non-stop Boeing 757-200 (75W) 4:16 Effective 2026-04-13 through 2026-05-22
The flight arrives 1 day after departure.
Mon,Thu,Fri,Sun 21:20 Santa Ana (SNA) 04:36 Atlanta (ATL) S
DL 1521 Non-stop Boeing 757-200 (75W) 4:16 Effective 2026-05-25 through 2026-07-06
The flight arrives 1 day after departure.
Mon,Thu,Fri,Sun 21:20 Santa Ana (SNA) 04:42 Atlanta (ATL) S
DL 1521 Non-stop Boeing 757-200 (75W) 4:22 Effective 2026-07-09 through 2026-09-04
The flight arrives 1 day after departure.
Mon,Thu,Fri,Sun 21:20 Santa Ana (SNA) 04:42 Atlanta (ATL) S
DL 1521 Non-stop Boeing 757-200 (75W) 4:22 Effective 2026-09-07 through 2026-10-05
The flight arrives 1 day after departure.
Mon,Thu,Fri,Sun 21:20 Santa Ana (SNA) 04:31 Atlanta (ATL) S
DL 1521 Non-stop Boeing 757-200 (75W) 4:11 Effective from 2026-10-08
The flight arrives 1 day after departure.
This flight number is listed as serving the following routes:


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Delta Air Lines flight DL 1521: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL1521
08:05
Kansas City (MCI)

11:07
Atlanta (ATL) S
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:02, non-stop
Boeing 737-900 (739)
Direct Flights:
Delta Air Lines DL1521
08:05
Kansas City (MCI)

11:06
Atlanta (ATL) S
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:01, non-stop
Airbus A319 (319)
Direct Flights:
Delta Air Lines DL1521
15:50
Salt Lake City (SLC)

16:59
Jackson (JAC)
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:09, non-stop
Airbus A319 (319)
Direct Flights:
Delta Air Lines DL1521
18:59
Las Vegas Harry Reid (LAS) 1

21:46
Seattle-Tacoma (SEA)
Effective 2026-03-08 through 2026-03-13
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:47, non-stop
Boeing 737-900 (739)
Direct Flights:
Delta Air Lines DL1521
18:59
Las Vegas Harry Reid (LAS) 1

21:48
Seattle-Tacoma (SEA)
Effective 2026-03-15 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:49, non-stop
Boeing 737-900 (739)
Direct Flights:
Delta Air Lines DL1521
21:20
Santa Ana (SNA)

04:24(+1)
Atlanta (ATL) S
Effective 2026-01-05 through 2026-01-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:04, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Direct Flights:
Delta Air Lines DL1521
21:20
Santa Ana (SNA)

04:24(+1)
Atlanta (ATL) S
Effective 2026-01-19 through 2026-02-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:04, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Direct Flights:
Delta Air Lines DL1521
21:20
Santa Ana (SNA)

04:24(+1)
Atlanta (ATL) S
Operates only on 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:04, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Direct Flights:
Delta Air Lines DL1521
21:20
Santa Ana (SNA)

04:36(+1)
Atlanta (ATL) S
Effective 2026-04-13 through 2026-05-22
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:16, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Direct Flights:
Delta Air Lines DL1521
21:20
Santa Ana (SNA)

04:36(+1)
Atlanta (ATL) S
Effective 2026-05-25 through 2026-07-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:16, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Direct Flights:
Delta Air Lines DL1521
21:20
Santa Ana (SNA)

04:42(+1)
Atlanta (ATL) S
Effective 2026-07-09 through 2026-09-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:22, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Direct Flights:
Delta Air Lines DL1521
21:20
Santa Ana (SNA)

04:42(+1)
Atlanta (ATL) S
Effective 2026-09-07 through 2026-10-05
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:22, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Direct Flights:
Delta Air Lines DL1521
21:20
Santa Ana (SNA)

04:31(+1)
Atlanta (ATL) S
Effective from 2026-10-08
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:11, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
This flight number is listed as serving the following routes:
  • Kansas City (MCI) - Atlanta (ATL)
  • Las Vegas Harry Reid (LAS) - Seattle-Tacoma (SEA)
  • Salt Lake City (SLC) - Jackson (JAC)
  • Santa Ana (SNA) - Atlanta (ATL)
All Delta Air Lines flights
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