Carrier route record
ASPDX→GEG
Alaska Airlines · Portland to Spokane
- Flights
- 549
- Period
- July 2025 to June 2026
- Share of route
- 57%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Alaska Airlines.
Alaska on PDX to GEG earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 40 minutes. That rests on 549 flights, with a median arrival 7 minutes early.
Set against the rest of the country, Alaska's PDX to GEG record is 9 points better than the US average of 77.6%. That gap is worth roughly 85 fewer late arrivals for every thousand flights.
Key figures
On time
86.1%
Arrivals under 15 minutes late, of 541 completed flights
Avg delay
41 min
Across delayed arrivals only, not all flights
Cancelled
1.46%
National rate is 1.81%
Whole route
86.3%
Every carrier on PDX to GEG, 964 flights
These figures cover 549 flights between July 2025 and June 2026. The median arrival is 7 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 PDX to GEG
Alaska flew 549 of the 964 flights on PDX to GEG, most of the route. Its 86.1% on time is about level with the route as a whole at 86.3%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from SkyWest at 86.5% to Alaska at 86.1%.
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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 415 | 86.5% | 47 min | 0.24% | A+ |
| Alaska Airlines (this page) | 549 | 86.1% | 41 min | 1.46% | A |
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 549 flights.
- 5am–8am3 flights—
- 8am–11am290 flights85.7%
- 11am–2pm—
- 2pm–5pm1 flights—
- 5pm–8pm17 flights—
- 8pm–5am238 flights86.0%
Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.
The overnight block holds up unusually well at 86.0% on time across 238 flights. Red-eyes fly into empty airspace and empty gates, and they are the first rotation of the aircraft's day rather than the last. The 8am–11am window is the busiest, with 290 flights scheduled in it.
Across the year
Alaska on PDX to GEG through the year
December is the weak month at 78.9% on time, against 93.3% in June. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. January was the busiest month here, with 60 flights.
Across the week, Tuesday is the strongest day at 90.7% on time and Friday the weakest at 79.3%. 11 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. Carrier accounts for 44% of the 3,074 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.
- 44%Carrier
- 33%Late-arriving aircraft
- 22%National Airspace System
- 0%Extreme weather
The largest share of delay minutes, 44%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,364 of the 3,074 delay minutes reported here. The split is drawn from 3,074 reported delay minutes.
Cancellations sit at 1.46% 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 2.0% 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.
At 279 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 8pm–5am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 91.1% on time across 548 flights, 5 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 5 points of difference.
One caution: this is a thin sample. 549 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 PDX to GEG
Put together: treat all of this as provisional. 549 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 86.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 541 completed flights over 12 months sit behind that.
Related
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.