OO4988

OO4988 (SkyWest Airlines) is a multi-stop service on 21 routes, busiest Phoenix to Burbank. Of 644 departures recorded from November 2024 to May 2026, 79.3% 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 periods17 periods
PeriodDepartures 2025Departures 2026Change vs last year
January2562▲ 148.0%
February2856▲ 100.0%
March3162▲ 100.0%
April1816▼ 11.1%
May571▼ 98.2%
June34––
July31––
August23––
September30––
October15–in progress
November22––
December60––
Year to date (Jan–May)159197▲ 23.9%

according to the US BTS · November 2024 → May 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 periods17 periods
PeriodOn time 2025On time 2026Change vs last year
January85.7%81.7%▼ 4.7%
February77.8%78.6%▲ 1.0%
March90.3%79.0%▼ 12.5%
April82.4%87.5%▲ 6.3%
May90.2%100.0%▲ 10.9%
June55.9%––
July50.0%––
August60.9%––
September96.6%––
October100.0%–in progress
November86.4%––
December84.8%––
Year-to-date average (Jan–May)85.3%85.4%▲ 0.1%

according to the US BTS · November 2024 → May 2026

Average departure delay by month

All legs combined

according to the US BTS · November 2024 → May 2026

Cancelled departures by month

All legs combined
The most recent periods17 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January42▼ 50.0%
February10▼ 100.0%
March00–
April10▼ 100.0%
May60▼ 100.0%
June0––
July1––
August0––
September1––
October0–in progress
November0––
December1––
Year to date (Jan–May)122▼ 83.3%

according to the US BTS · November 2024 → May 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 97.4% 627
  • Cancelled 2.6% 17

Share of all recorded flights in the period, all legs. · Nov 5, 2024 → May 6, 2026

On time, leg by leg

  1. PHX–BUR114 82.3%
  2. BUR–PHX114 82.1%
  3. LFT–DFW86 86.3%
  4. ORD–MKE62 47.5%
  5. PSP–PHX56 85.7%
  6. PHX–PSP54 81.5%
  7. ELP–PHX33 96.9%
  8. HOU–DFW31 89.3%

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

Legs flown under this number

9
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
November 2024 52 52 82.7% 0
December 2024 21 21 47.6% 0
January 2025 25 21 85.7% 4
February 2025 28 27 77.8% 1
March 2025 31 31 90.3% 0
April 2025 18 17 82.4% 1
May 2025 57 51 90.2% 6
June 2025 34 34 55.9% 0
July 2025 31 30 50.0% 1
August 2025 23 23 60.9% 0
September 2025 30 29 96.6% 1
October 2025 15 15 100.0% 0
November 2025 22 22 86.4% 0
December 2025 60 59 84.8% 1
January 2026 62 60 81.7% 2
February 2026 56 56 78.6% 0
March 2026 62 62 79.0% 0
April 2026 16 16 87.5% 0
May 2026 1 1 100.0% 0

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