The nonstop is quickest: Delta DCA → SLC (4h 47m), on time 3 times in 4. Delta via Omaha (8h 09m) is more reliable, 88%, but takes 3h 22m longer.
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 820 | DCA 17:50 | SLC 20:37 | 76% |
All 1 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.
| DL 820 | DCA 17:50 | SLC 20:37 | 4h 47m | 364 | 76% | 1.1% | 59 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.
| Delta | DCA | SLC | 4h 47m | 76% | 1.1% | 364 | Flying now |
Alternatives with one stop
All connections →| DeltaDetails → | DCA 09:13 → CVG 10:55DL 5229 · flown by Endeavor | 1h 35m Hebron | CVG 12:30 → SLC 14:14DL 678 | 7h 01m | 95% | 85% |
| DeltaDetails → | DCA 06:00 → DTW 07:30DL 2869 | 55m Detroit | DTW 08:25 → SLC 10:23DL 698 | 6h 23m | 92% | 79% |
| DeltaDetails → | DCA 09:39 → DTW 11:14DL 1558 | 1h 11m Detroit | DTW 12:25 → SLC 14:19DL 935 | 6h 40m | 88% | 75% |
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