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1,643 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Delta is clearly ahead here: 94% of its flights arrive on time, 14 points better than Southwest.

Best time to leave 5–6 am 97% arrive on time from OAK
Best single flight DL 4061 OAK 06:00 → SLC 08:55 · 97% on time Avoid DL 3903 OAK 17:05 → SLC 20:00 · 92% 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).

5
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OAK
96
97
80
92
92
85
85
64
% 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 OAK 6–7 am: 1Close ×
DL 4061flown by SkyWest OAK 06:00 SLC 08:55 1h 55m 365 97% 0.0% 116 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) 1,074 94% 0.2% 71 min
Southwest 569 79% 0.0% 60 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 4061flown by SkyWest OAK 06:00 SLC 08:55 97%
DL 4134flown by SkyWest OAK 12:33 SLC 15:29 93%
DL 3903flown by SkyWest OAK 17:05 SLC 20:00 92%
All 4 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 OAK SLC 1h 56m 94% 0.2% 1,074 Flying now
Southwest OAK SLC 1h 45m 79% 0.0% 569 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