AS312

This is not a forecast

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

84.3%

AS312, operated by Alaska Airlines, flies 2 different airport pairs — it is a multi-leg service. Across all 1,056 recorded departures, 84.3% left on time; the legs differ and are listed below.

domestic flights only sample 1,056 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.

84.3%on time
5.1 minaverage delay
0.1%cancelled
1,056recorded 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 99.9% 1,055
  • Cancelled 0.1% 1

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 30 30 86.7% 0
October 2024 31 31 90.3% 0
November 2024 30 30 90.0% 0
December 2024 26 26 92.3% 0
January 2025 24 24 87.5% 0
February 2025 24 24 87.5% 0
March 2025 31 30 80.0% 1
April 2025 39 39 94.9% 0
May 2025 62 62 91.9% 0
June 2025 59 59 61.0% 0
July 2025 62 62 75.8% 0
August 2025 62 62 79.0% 0
September 2025 60 60 85.0% 0
October 2025 62 62 79.0% 0
November 2025 60 60 81.7% 0
December 2025 62 62 88.7% 0
January 2026 48 48 89.6% 0
February 2026 50 50 84.0% 0
March 2026 60 60 75.0% 0
April 2026 56 56 91.1% 0
May 2026 58 58 94.8% 0
June 2026 60 60 86.7% 0

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
SEA OMA Seattle–Tacoma International Airport – Eppley Airfield 2,196 4.9 min 84.7% 641
OMA SEA Eppley Airfield – Seattle–Tacoma International Airport 2,196 5.4 min 83.6% 415