SFO → DEN

F91094

F91094 (Frontier Airlines) flies San Francisco to Denver. Of 249 departures recorded from October 2024 to July 2026, 53.4% left on time, according to the US BTS.

according to the US BTS · Oct 29, 2024 → Jul 29, 2026 domestic flights only

Recorded departures by month

Months without data are left blank.

The most recent periods17 periods
PeriodDepartures 2025Departures 2026Change vs last year
January143▼ 78.6%
February96▼ 33.3%
March726▲ 271.4%
April620▲ 233.3%
May1330▲ 130.8%
June–30–
July–12–
August7––
September11––
October8–in progress
November16––
December13––

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 periods17 periods
PeriodOn time 2025On time 2026Change vs last year
January78.6%33.3%▼ 57.6%
February100.0%100.0%0.0%
March85.7%80.8%▼ 5.8%
April50.0%21.1%▼ 57.9%
May84.6%23.3%▼ 72.4%
June–10.0%–
July–8.3%–
August85.7%––
September63.6%––
October37.5%–in progress
November73.3%––
December53.9%––

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 periods17 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February00–
March00–
April01–
May00–
June–0–
July–0–
August0––
September0––
October0–in progress
November1––
December0––

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.

Cancellation share

  • Not cancelled 99.2% 247
  • Cancelled 0.8% 2

Share of all recorded flights in the period, all legs. · Oct 29, 2024 → Jul 29, 2026

Legs flown under this number

1
RoutesDistance (km)Avg delay On timeDepartures
SFO DEN San Francisco International Airport – Denver International Airport 1,553 25.8 min 53.4% 249
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 1 1 100.0% 0
November 2024 13 13 76.9% 0
December 2024 4 4 100.0% 0
January 2025 14 14 78.6% 0
February 2025 9 9 100.0% 0
March 2025 7 7 85.7% 0
April 2025 6 6 50.0% 0
May 2025 13 13 84.6% 0
August 2025 7 7 85.7% 0
September 2025 11 11 63.6% 0
October 2025 8 8 37.5% 0
November 2025 16 15 73.3% 1
December 2025 13 13 53.9% 0
January 2026 3 3 33.3% 0
February 2026 6 6 100.0% 0
March 2026 26 26 80.8% 0
April 2026 20 19 21.1% 1
May 2026 30 30 23.3% 0
June 2026 30 30 10.0% 0
July 2026 12 12 8.3% 0

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