1,671 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Delta’s GEG → SLC flights land within a few points of 9 in 10 on time whatever the hour.

Best time to leave 9–10 am 97% arrive on time from GEG

Best single flight DL 1440 GEG 05:20 → SLC 08:00 · 92% on time Avoid DL 1452 GEG 13:30 → SLC 16:13 · 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).

GEG

% 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 GEG 5–6 pm: 1Close ×


DL 1503	GEG 17:10	SLC 19:59	1h 49m	182	86%	1.6%	65 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 (incl. SkyWest)	1,671	91%	0.7%	91 min

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 1440	GEG 05:20	SLC 08:00	92%
DL 1503	GEG 17:10	SLC 19:59	86%
DL 1452	GEG 13:30	SLC 16:13	86%

All 7 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	GEG	SLC	1h 49m	91%	0.7%	1,671	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