AS601

AS601 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Reno to Seattle. Of 604 departures recorded from October 2024 to July 2026, 70.2% 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
January2420▼ 16.7%
February2423▼ 4.2%
March31310.0%
April2730▲ 11.1%
May2931▲ 6.9%
June2830▲ 7.1%
July31310.0%
August29––
September26––
October31–in progress
November29––
December30––
Year to date (Jan–Jul)194196▲ 1.0%

according to the US BTS · October 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
January75.0%65.0%▼ 13.3%
February81.0%47.6%▼ 41.2%
March70.0%66.7%▼ 4.8%
April66.7%80.0%▲ 20.0%
May64.3%83.9%▲ 30.5%
June60.7%73.3%▲ 20.8%
July56.7%71.0%▲ 25.2%
August55.2%––
September73.1%––
October67.7%–in progress
November75.9%––
December75.9%––
Year-to-date average (Jan–Jul)67.8%69.6%▲ 2.8%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February32▼ 33.3%
March110.0%
April00–
May10▼ 100.0%
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November0––
December1––
Year to date (Jan–Jul)63▼ 50.0%

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.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 98.3% 594
  • Cancelled 1.7% 10

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

On time, leg by leg

  1. RNO–SEA410 68.8%
  2. LAS–SEA194 73.2%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
RNO SEA Reno Tahoe International Airport – Seattle–Tacoma International Airport 907 15.6 min 68.8% 410
LAS SEA Harry Reid International Airport – Seattle–Tacoma International Airport 1,395 18.3 min 73.2% 194
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 70.0% 0
November 2024 20 20 85.0% 0
December 2024 29 29 79.3% 0
January 2025 24 24 75.0% 0
February 2025 24 21 81.0% 3
March 2025 31 30 70.0% 1
April 2025 27 27 66.7% 0
May 2025 29 28 64.3% 1
June 2025 28 28 60.7% 0
July 2025 31 30 56.7% 1
August 2025 29 29 55.2% 0
September 2025 26 26 73.1% 0
October 2025 31 31 67.7% 0
November 2025 29 29 75.9% 0
December 2025 30 29 75.9% 1
January 2026 20 20 65.0% 0
February 2026 23 21 47.6% 2
March 2026 31 30 66.7% 1
April 2026 30 30 80.0% 0
May 2026 31 31 83.9% 0
June 2026 30 30 73.3% 0
July 2026 31 31 71.0% 0

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