OO4031

This is not a forecast

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

90.2%

OO4031, operated by SkyWest Airlines, flies 7 different airport pairs — it is a multi-leg service. Across all 1,209 recorded departures, 90.2% left on time; the legs differ and are listed below.

domestic flights only sample 1,209 departures · arrival delay, measured at the gate
This number flies several legs

Because this number covers several legs, the headline figure is an average across all of them. Read the leg table for the one you are flying.

90.2%on time
0.2 minaverage delay
0.3%cancelled
1,209recorded departures

These charts combine all legs flown under this number. Changes in the mix of legs can affect the monthly figures; consult the leg table below.

On-time departures by month

All legs combined

On time means departing no more than 15 minutes after schedule. Monthly punctuality uses only non-cancelled flights with a recorded departure delay; flights with missing times are excluded. Each month reflects the records available from the source.

according to us_bts_otp · 2024-09 → 2026-06

Recorded departures by month

All legs combined

according to us_bts_otp · 2024-09 → 2026-06

Cancellation share

  • Not cancelled 99.8% 1,206
  • Cancelled 0.2% 3

Share of all recorded flights over the period shown, including every leg. Not cancelled does not necessarily mean on time.

according to us_bts_otp · 2024-09-01 → 2026-06-30

Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
September 2024 59 59 72.9% 0
October 2024 37 37 94.6% 0
November 2024 48 48 97.9% 0
December 2024 43 43 90.7% 0
January 2025 54 53 88.7% 1
February 2025 56 56 80.4% 0
March 2025 62 62 96.8% 0
April 2025 60 60 100.0% 0
May 2025 62 62 91.9% 0
June 2025 60 60 91.7% 0
July 2025 58 58 79.3% 0
August 2025 62 62 93.6% 0
September 2025 60 60 95.0% 0
October 2025 62 62 95.2% 0
November 2025 58 58 86.2% 0
December 2025 38 38 94.7% 0
January 2026 54 54 92.6% 0
February 2026 39 39 92.3% 0
March 2026 55 53 90.6% 2
April 2026 60 60 90.0% 0
May 2026 62 62 87.1% 0
June 2026 60 60 86.7% 0

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
ONT SEA Ontario International Airport – Seattle–Tacoma International Airport 1,540 -0.4 min 91.2% 579
SEA ONT Seattle–Tacoma International Airport – Ontario International Airport 1,540 -0.3 min 90.7% 573