The best bet has a stop: Southwest via Denver (6h 55m) reaches San Diego on time 85% of the time, against 64% on the nonstop.
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).
Pick an hour to see this route’s flights leaving then.
Airlines on this route
Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
| Southwest | 194 | 64% | 0.5% | 37 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.
No flight on this route ran 150+ times in the year.
All 2 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.
| Southwest | CMH | SAN | 4h 45m | 64% | 0.5% | 194 | Flying now |
Alternatives with one stop
All connections →| SouthwestDetails → | CMH 05:45 → DEN 06:50WN 1186 | 1h 25m Denver | DEN 08:15 → SAN 09:40WN 1699 | 6h 55m | 98% | 85% |
| UnitedDetails → | CMH 05:30 → ORD 06:09UA 3524 · flown by Republic | 52m Chicago | ORD 07:01 → SAN 09:29UA 2428 | 6h 59m | 90% | 84% |
| AmericanDetails → | CMH 05:30 → ORD 06:00AA 4487 · flown by Republic | 48m Chicago | ORD 06:48 → SAN 09:08AA 2484 | 6h 35m | 90% | 79% |
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