No clear winner: Alaska’s SEA → SAT flights land within a few points of 77% on time whatever the hour.
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.
| Alaska | 558 | 77% | 0.9% | 42 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.
| AS 494 | SEA 09:38 | SAT 15:46 | 76% |
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.
| Alaska | SEA | SAT | 4h 08m | 77% | 0.9% | 558 | Flying now |
Alternatives with one stop
All connections →| UnitedDetails → | SEA 05:00 → DEN 08:43UA 2601 | 52m Denver | DEN 09:35 → SAT 12:43UA 2625 | 5h 43m | 92% | 84% |
| UnitedDetails → | SEA 08:56 → DEN 12:45UA 1505 | 59m Denver | DEN 13:44 → SAT 16:55UA 1022 | 5h 59m | 91% | 81% |
| DeltaDetails → | SEA 05:30 → SLC 08:30DL 1128 | 1h 21m Salt Lake City | SLC 09:51 → SAT 13:40DL 3123 | 6h 10m | 97% | 80% |
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