The best bet has a stop: Delta via Minneapolis (9h 23m) reaches Seattle on time 83% of the time, against 62% 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.
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 506 | MIA 18:26 | SEA 22:10 | 60% |
All 2 Delta 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.
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 | MIA | SEA | 6h 44m | 63% | 1.6% | 366 | Flying now |
Alternatives with one stop
All connections →| DeltaDetails → | MIA 06:35 → MSP 09:25DL 1056 | 1h 45m Minneapolis | MSP 11:10 → SEA 12:58DL 889 | 9h 23m | 97% | 83% |
| DeltaDetails → | MIA 07:10 → ATL 09:15DL 1211 | 1h 55m Atlanta | ATL 11:10 → SEA 13:38DL 648 | 9h 28m | 98% | 83% |
| DeltaDetails → | MIA 07:00 → SLC 10:04DL 2021 | 1h 31m Salt Lake City | SLC 11:35 → SEA 12:52DL 2995 | 8h 52m | 93% | 82% |
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