Showing Frontier only (incl. its regional partners)All airlines ×
98 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines
Take the nonstop: Frontier LAS → IAD (4h 35m) reaches Dulles on time 2 times in 3; the most reliable connection, Frontier via Atlanta (7h 07m), 52%.
Best time to leave
12–1 am
62% arrive on time from LAS
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 Frontier flight on this route ran 150+ times in the year.
All 1 Frontier 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.
| F9 4278 | LAS 00:46 | IAD 08:20 | 4h 35m | 98 | 65% | 0.0% | 61 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.
| Frontier | LAS | IAD | 4h 35m | 65% | 0.0% | 98 | Flying now |
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