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2,964 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 88% depart on time. After 4 pm it’s 3 in 4.

Best time to leave 7–8 am 94% arrive on time from ATL
Best single flight DL 387 ATL 10:05 → SLC 12:10 · 92% on time Avoid DL 453 ATL 22:15 → SLC 00:26 · 75% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
ATL
88
88
87
87
86
90
85
82
77
73
75
69
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55
Salt Lake City flights leaving ATL 10–11 am: 1Close ×
DL 387 ATL 10:05 SLC 12:10 4h 05m 365 92% 0.5% 48 min

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Delta 2,958 83% 0.5% 62 min
Frontier 6 – 0.0% 70 min

Dimmed: fewer than 150 flights in the year, too few to rank.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
DL 387 ATL 10:05 SLC 12:10 92%
DL 830 ATL 08:15 SLC 10:15 89%
DL 663 ATL 11:54 SLC 13:50 88%
DL 423 ATL 13:55 SLC 15:51 86%
DL 526 ATL 15:24 SLC 17:24 82%
· · ·
DL 653 ATL 17:55 SLC 19:58 80%
DL 660 ATL 19:25 SLC 21:30 76%
DL 453 ATL 22:15 SLC 00:26 75%
All 9 flights on this route →

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
Delta ATL SLC 4h 03m 83% 0.5% 2,958 Flying now
Frontier ATL SLC – 67%few flights 0.0% 6 Not flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON