OO6404

OO6404 (SkyWest Airlines) is a multi-stop service on 3 routes, busiest San Francisco to Phoenix. Of 562 departures recorded from December 2024 to July 2026, 94.8% left on time, according to the US BTS.

Recorded departures by month

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

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January3031▲ 3.3%
February2816▼ 42.9%
March3126▼ 16.1%
April2623▼ 11.5%
May3124▼ 22.6%
June2930▲ 3.4%
July31310.0%
August29––
September30––
October30–in progress
November30––
December31––
Year to date (Jan–Jul)206181▼ 12.1%

according to the US BTS · December 2024 → July 2026

On-time departures by month

All legs combined

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
January100.0%100.0%0.0%
February96.4%86.7%▼ 10.1%
March100.0%92.3%▼ 7.7%
April100.0%68.2%▼ 31.8%
May100.0%66.7%▼ 33.3%
June100.0%100.0%0.0%
July96.8%96.8%0.0%
August100.0%––
September93.3%––
October96.7%–in progress
November96.7%––
December100.0%––
Year-to-date average (Jan–Jul)99.0%87.2%▼ 11.9%

according to the US BTS · December 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · December 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February01–
March00–
April01–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)02

according to the US BTS · December 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 99.3% 558
  • Cancelled 0.7% 4

Share of all recorded flights in the period, all legs. · Dec 5, 2024 → Jul 31, 2026

On time, leg by leg

  1. SFO–PHX522 95.0%
  2. DFW–TYR31 89.7%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

2
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
December 2024 25 23 87.0% 2
January 2025 30 30 100.0% 0
February 2025 28 28 96.4% 0
March 2025 31 31 100.0% 0
April 2025 26 26 100.0% 0
May 2025 31 31 100.0% 0
June 2025 29 29 100.0% 0
July 2025 31 31 96.8% 0
August 2025 29 29 100.0% 0
September 2025 30 30 93.3% 0
October 2025 30 30 96.7% 0
November 2025 30 30 96.7% 0
December 2025 31 31 100.0% 0
January 2026 31 31 100.0% 0
February 2026 16 15 86.7% 1
March 2026 26 26 92.3% 0
April 2026 23 22 68.2% 1
May 2026 24 24 66.7% 0
June 2026 30 30 100.0% 0
July 2026 31 31 96.8% 0

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