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

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

No clear winner: Southwest’s PHX → GEG flights land within a few points of 3 in 4 on time whatever the hour.

Best time to leave 12–1 pm 88% arrive on time from PHX

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).

PHX

% 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.

No Southwest flight on this route ran 150+ times in the year.

All 4 Southwest 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.


WN 2491	PHX 09:45	GEG 12:20	2h 35m	26	69%	0.0%	39 min
WN 549	PHX 21:35	GEG 00:08	2h 32m	16	25%	0.0%	49 min
WN 3921	PHX 22:50	GEG 01:20	2h 30m	12	33%	0.0%	43 min
WN 4273	PHX 22:50	GEG 01:25	2h 35m	12	50%	0.0%	54 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.


Southwest	PHX	GEG	2h 40m	76%	0.3%	616	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