Flight number record

AS 601

Alaska Airlines · Reno to Seattle

Route: RNO → SEA
Departs: 14:32
Flights: 341
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AS 601, check with Alaska Airlines.

AS 601 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land roughly 55 minutes behind schedule. That rests on 341 flights, with a median arrival 3 minutes early.

The national on-time rate over the same period is 77.6%, so AS 601 runs 7 points behind the country as a whole. Across a thousand flights that is about 74 extra late arrivals.

On time

70.2%

Arrivals under 15 minutes late, of 336 completed flights

Avg delay

54 min

Across delayed arrivals only, not all flights

Cancelled

1.47%

National rate is 1.81%

1 hour+ late

8.3%

National rate is 8.1%

These figures cover 341 flights between July 2025 and June 2026. Beyond the headline rate, 8.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When AS 601 flies

AS 601 flies RNO to SEA without a single fixed slot. Its most common scheduled departure was 14:32, used on 50 of 341 flights, with 12:44 (35 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 14:3250 flights14.7%
Departs 12:4435 flights10.3%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 14:32 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and AS 601 runs 2 points worse at 70.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

AS 601 next to RNO to SEA

Every carrier on RNO to SEA combined arrived on time 74.6% of the time across 910 flights, so AS 601 is 4 points behind it. Alaska flew 811 flights on the same city pair under all its flight numbers, including this one, and those ran 75.0% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight trails by 9 points.

AS 601 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AS 601thin sample	341	70.2%	54 min	1.47%	C
All Alaska Airlines on RNO–SEA	811	75.0%	52 min	1.60%	B
All carriers on RNO–SEA	910	74.6%	51 min	1.43%	C
Alaska Airlines, whole network	293,372	79.1%	52 min	1.28%	B

Across the year

AS 601 quarter by quarter

AS 601 did not run the same all year. Its best quarter was Apr–Jun 2026 at 83.5% on time and its weakest Jul–Sep 2025 at 61.2%, a swing of 22 points on roughly 85 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202586 flights61.2%
Oct–Dec 202590 flights66.3%
Jan–Mar 202674 flights69.0%
Apr–Jun 202691 flights83.5%

Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, AS 601 did best on Tuesday at 82.6% on time and worst on Sunday at 58.8%. Each day rests on about 49 flights, so a gap of 24 points is worth noticing but could still narrow in another year.

Delay causes

Why AS 601 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 65% of the 5,373 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
65%
Carrier
19%
National Airspace System
13%
Extreme weather
3%
Security
0%

65% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 5,373 reported delay minutes here, that single category outweighs weather by 20 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 5,373 delay minutes reported on AS 601.

Cancellations sit at 1.47% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

8.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 55 minutes, which a normal layover absorbs.

The 564 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

Every one of the 341 flights under AS 601 in the data flew RNO to SEA. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 341 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking AS 601

For a booking, read AS 601 as 70.2% on time with 1.47% cancelled over 341 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means Alaska Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures