Delta Air Lines flight DL 423: Atlanta - Salt Lake City

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Fri,Sun 13:55 Atlanta (ATL) S 16:11 Salt Lake City (SLC)
DL 423 Non-stop Airbus A321 (321) 4:16 Effective 2026-03-08 through 2026-04-12
Sat 13:55 Atlanta (ATL) S 16:09 Salt Lake City (SLC)
DL 423 Non-stop Boeing 737-900 (739) 4:14 Effective 2026-03-14 through 2026-04-11
Mon 13:56 Atlanta (ATL) S 16:13 Salt Lake City (SLC)
DL 423 Non-stop Boeing 737-800 (738) 4:17 Operates only on 2026-01-05
Daily 13:56 Atlanta (ATL) S 16:15 Salt Lake City (SLC)
DL 423 Non-stop Airbus A321 (321) 4:19 Effective 2026-01-06 through 2026-02-11
Daily 14:00 Atlanta (ATL) S 16:15 Salt Lake City (SLC)
DL 423 Non-stop Airbus A321 (321) 4:15 Valid until 2026-01-04
Mon-Fri,Sun 14:00 Atlanta (ATL) S 16:18 Salt Lake City (SLC)
DL 423 Non-stop Airbus A321 (321) 4:18 Effective 2026-02-12 through 2026-03-06
Sat 14:00 Atlanta (ATL) S 16:17 Salt Lake City (SLC)
DL 423 Non-stop Airbus A321 (321) 4:17 Effective 2026-02-14 through 2026-03-07
Daily 14:12 Atlanta (ATL) S 16:19 Salt Lake City (SLC)
DL 423 Non-stop Airbus A321 (321) 4:07 Effective 2026-04-13 through 2026-07-06
Daily 14:12 Atlanta (ATL) S 16:11 Salt Lake City (SLC)
DL 423 Non-stop Airbus A321 (321) 3:59 Effective 2026-07-07 through 2026-10-05
Daily 14:12 Atlanta (ATL) S 16:24 Salt Lake City (SLC)
DL 423 Non-stop Airbus A321 (321) 4:12 Effective from 2026-10-06


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Delta Air Lines flight DL 423:
Atlanta - Salt Lake City
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL423
13:55
Atlanta (ATL) S

16:11
Salt Lake City (SLC)
Effective 2026-03-08 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:16, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL423
13:55
Atlanta (ATL) S

16:09
Salt Lake City (SLC)
Effective 2026-03-14 through 2026-04-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:14, non-stop
Boeing 737-900 (739)
Direct Flights:
Delta Air Lines DL423
13:56
Atlanta (ATL) S

16:13
Salt Lake City (SLC)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:17, non-stop
Boeing 737-800 (738)
Direct Flights:
Delta Air Lines DL423
13:56
Atlanta (ATL) S

16:15
Salt Lake City (SLC)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:19, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL423
14:00
Atlanta (ATL) S

16:15
Salt Lake City (SLC)
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:15, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL423
14:00
Atlanta (ATL) S

16:18
Salt Lake City (SLC)
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:18, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL423
14:00
Atlanta (ATL) S

16:17
Salt Lake City (SLC)
Effective 2026-02-14 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:17, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL423
14:12
Atlanta (ATL) S

16:19
Salt Lake City (SLC)
Effective 2026-04-13 through 2026-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:07, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL423
14:12
Atlanta (ATL) S

16:11
Salt Lake City (SLC)
Effective 2026-07-07 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:59, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL423
14:12
Atlanta (ATL) S

16:24
Salt Lake City (SLC)
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:12, non-stop
Airbus A321 (321)
  • DL 423 is a domestic flight departing from the Atlanta airport (ATL) and arriving at Salt Lake City airport (SLC).
  • The flight distance is 1586 miles, or 2552 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 3:59 and 4:19.
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