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

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

No clear winner: Delta’s BOI → ATL flights land within a few points of 85% on time whatever the hour.

Best time to leave 1–2 pm 90% arrive on time from BOI

Best single flight DL 874 BOI 14:04 → ATL 20:19 · 89% 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).

BOI

% 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 874	BOI 14:04	ATL 20:19	89%

All 2 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 874	BOI 14:04	ATL 20:19	4h 15m	365	89%	1.9%	71 min
DL 635	BOI 23:10	ATL 05:16	4h 06m	40	78%	0.0%	56 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	BOI	ATL	4h 06m	85%	1.5%	545	Flying now

Alternatives with one stop

All connections →


Delta Details →	BOI 06:00 → SLC 07:11DL 2173	59m Salt Lake City	SLC 08:10 → ATL 13:53DL 897	5h 53m	90%	81%

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