Carrier route record

ASGEG→LAX

Alaska Airlines · Spokane to Los Angeles

Flights: 215
Period: July 2025 to June 2026
Share of route: 25%
Carriers: 3

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

Alaska on GEG to LAX earns an A+. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 16 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 215 flights, with a median arrival 11 minutes early.

Set against the rest of the country, Alaska's GEG to LAX record is 16 points better than the US average of 77.6%. That gap is worth roughly 158 fewer late arrivals for every thousand flights.

On time

93.4%

Arrivals under 15 minutes late, of 213 completed flights

Avg delay

61 min

Across delayed arrivals only, not all flights

Cancelled

0.93%

National rate is 1.81%

Whole route

91.3%

Every carrier on GEG to LAX, 858 flights

These figures cover 215 flights between July 2025 and June 2026. The median arrival is 11 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Carrier by carrier

Alaska against every carrier on GEG to LAX

Alaska flew 215 of the 858 flights on GEG to LAX, about 25% of it. Its 93.4% on time is 2 points better than the route as a whole, which runs 91.3%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Alaska at 93.4% to Allegiant at 77.8%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on GEG to LAX
Airline	Flights	On time	Avg delay	Cancelled	Grade
Alaska Airlines (this page)thin sample	215	93.4%	61 min	0.93%	A+
SkyWest Airlines	625	91.0%	74 min	0.64%	A+
Allegiant Airthin sample	18	77.8%	357 min	0.00%	B+

Departure window

When Alaska runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 215 flights.

5am–8am166 flights94.6%
8am–11am—
11am–2pm—
2pm–5pm—
5pm–8pm49 flights89.4%
8pm–5am—

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

The early departures do better, though not dramatically: 94.6% on time for the 5am–8am window against 89.4% for 5pm–8pm. Worth taking if the schedule allows, not worth an extra connection. The 5am–8am window is the busiest, with 166 flights scheduled in it.

Across the year

Alaska on GEG to LAX through the year

Jul–Sep 202591 flights94.4%
Oct–Dec 202525 flights—
Jan–Mar 202614 flights—
Apr–Jun 202685 flights95.3%

Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 93.4% on time across 215 flights.

Split by quarter, Alaska on GEG to LAX logged 91 flights in Jul–Sep 2025, 25 flights in Oct–Dec 2025, 14 flights in Jan–Mar 2026 and 85 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 93.4% annual figure is the one to use.

Across the week, Saturday is the strongest day at 93.8% on time and Friday the weakest at 87.1%. 7 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Alaska runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 57% of the 848 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
57%
Carrier
22%
National Airspace System
14%
Security
4%
Extreme weather
3%

57% 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 848 reported delay minutes here, that single category outweighs weather by 18 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 848 reported delay minutes.

The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 94.6% on time here.

Cancellations sit at 0.93% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

Badly late arrivals are rare here: only 0.9% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 945 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.

The return leg runs 93.9% on time across 215 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 215 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 Alaska on GEG to LAX

Put together: treat all of this as provisional. 215 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 93.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 213 completed flights over 12 months sit behind that.

Where to go next

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