Flight profile · Frontier Airlines
F91081
Washington (IAD) to Atlanta (ATL) · scheduled 11:07 AM – 1:15 PM
How F91081 performs
317 operations, 2024-12-17 to 2026-06-30.
F91081 arrived on time 60.3% of the time, against 80.6% for all IAD → ATL flights — this specific departure is 20.2 percentage points worse than the route as a whole. Against Frontier Airlines’s own flights on this route it is 4.4 points worse.
Source: US DOT Bureau of Transportation Statistics · 317 operations between 2024-12-17 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| F91081 | 60.3% | 2.21% | 1 min | 18.7% | 317 |
| Frontier Airlines on IAD → ATL | 64.7% | 2.57% | -1 min | 15.4% | 896 |
| All IAD → ATL flights | 80.6% | 1.43% | -9 min | 8.3% | 10,957 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-12-17 to 2026-06-30
Other routes F91081 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
Because the same number has served different journeys, the statistics above describe only the route F91081 currently operates. Blending them would produce an average of two different flights.
Why F91081 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding, fuelling — within the carrier’s control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for F91081 on IAD → ATL. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on IAD → ATL
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL2550 | Delta Air Lines | 88.9% | 12 min early | 718 |
| UA1940 | United Airlines | 87.1% | 9 min early | 692 |
| DL1354 | Delta Air Lines | 81.1% | 8 min early | 688 |
| DL1695 | Delta Air Lines | 72.1% | 8 min early | 968 |
| UA2081 | United Airlines | 66.9% | 2 min late | 857 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 317 records of F91081 operating IAD → ATL, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.