F91081

F91081 (Frontier Airlines) is a multi-stop service on 2 routes, busiest Dulles to Atlanta. Of 321 departures recorded from October 2024 to July 2026, 64.3% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

Months without data are left blank.

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January117▲ 1,600.0%
February1017▲ 70.0%
March143▼ 78.6%
April1022▲ 120.0%
May3031▲ 3.3%
June2325▲ 8.7%
July213▼ 85.7%
August23––
September17––
October20–in progress
November21––
December9––
Year to date (Jan–Jul)109118▲ 8.3%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January0.0%75.0%–
February50.0%76.5%▲ 52.9%
March64.3%100.0%▲ 55.5%
April80.0%81.8%▲ 2.3%
May50.0%87.1%▲ 74.2%
June17.4%66.7%▲ 283.4%
July44.4%100.0%▲ 125.0%
August52.2%––
September94.1%––
October70.0%–in progress
November65.0%––
December50.0%––
Year-to-date average (Jan–Jul)43.7%83.9%▲ 91.8%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January01–
February00–
March00–
April00–
May00–
June01–
July30▼ 100.0%
August0––
September0––
October0–in progress
November1––
December1––
Year to date (Jan–Jul)32▼ 33.3%

according to the US BTS · October 2024 → July 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 97.8% 314
  • Cancelled 2.2% 7

Share of all recorded flights in the period, all legs. · Oct 26, 2024 → Jul 4, 2026

Legs flown under this number

1
RoutesDistance (km)Avg delay On timeDepartures
IAD ATL Washington Dulles International Airport – Hartsfield Jackson Atlanta International Airport 859 29.9 min 64.2% 320
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 1 1 100.0% 0
December 2024 3 3 33.3% 0
January 2025 1 1 0.0% 0
February 2025 10 10 50.0% 0
March 2025 14 14 64.3% 0
April 2025 10 10 80.0% 0
May 2025 30 30 50.0% 0
June 2025 23 23 17.4% 0
July 2025 21 18 44.4% 3
August 2025 23 23 52.2% 0
September 2025 17 17 94.1% 0
October 2025 20 20 70.0% 0
November 2025 21 20 65.0% 1
December 2025 9 8 50.0% 1
January 2026 17 16 75.0% 1
February 2026 17 17 76.5% 0
March 2026 3 3 100.0% 0
April 2026 22 22 81.8% 0
May 2026 31 31 87.1% 0
June 2026 25 24 66.7% 1
July 2026 3 3 100.0% 0

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