Showing Delta only (incl. its regional partners)All airlines ×

1,074 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Delta’s BIL → SLC flights land within a few points of 92% on time whatever the hour.

Best time to leave 11 am–12 pm 96% arrive on time from BIL

Best single flight DL 4038 BIL 11:50 → SLC 13:26 · 95% on time Avoid DL 3828 BIL 18:40 → SLC 20:17 · 86% 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).

BIL

% 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

Pick an hour to see this route’s flights leaving then.

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 4038flown by SkyWest	BIL 11:50	SLC 13:26	95%
DL 1360	BIL 05:20	SLC 06:42	95%
DL 3828flown by SkyWest	BIL 18:40	SLC 20:17	86%

All 3 Delta flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


DL 1360	BIL 05:20	SLC 06:42	1h 22m	365	95%	0.3%	104 min
DL 4038flown by SkyWest	BIL 11:50	SLC 13:26	1h 36m	224	95%	0.4%	50 min
DL 3828flown by SkyWest	BIL 18:40	SLC 20:17	1h 37m	345	86%	0.6%	86 min

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	BIL	SLC	1h 36m	92%	0.6%	1,074	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