Carrier route record
ASPDX→GEG
Alaska Airlines · Portland to Spokane
- Flights
- 605
- Period
- September 2025 to August 2026
- Share of route
- 57%
- Carriers
- 2
Historical statistics for September 2025 to August 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 8 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 40 minutes. That rests on 605 flights, with a median arrival 6 minutes early.
Set against the rest of the country, Alaska's PDX to GEG record is 8 points better than the US average of 77.3%. That gap is worth roughly 78 fewer late arrivals for every thousand flights.
Key figures
On time
85.1%
Arrivals under 15 minutes late, of 597 completed flights
Avg delay
38 min
Across delayed arrivals only, not all flights
Cancelled
1.32%
National rate is 1.89%
Whole route
84.7%
Every carrier on PDX to GEG, 1,069 flights
These figures cover 605 flights between September 2025 and August 2026. The median arrival is 6 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.
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Carrier by carrier
Alaska against every carrier on PDX to GEG
Alaska flew 605 of the 1,069 flights on PDX to GEG, most of the route. Its 85.1% on time is about level with the route as a whole at 84.7%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Alaska at 85.1% to SkyWest at 84.2%.
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 |
|---|---|---|---|---|---|
| Alaska Airlines (this page) | 605 | 85.1% | 38 min | 1.32% | A |
| SkyWest Airlines | 464 | 84.2% | 45 min | 0.22% | B+ |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
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 605 flights.
- 5am–8am3 flights—
- 8am–11am297 flights84.3%
- 11am–2pm—
- 2pm–5pm1 flights—
- 5pm–8pm17 flights—
- 8pm–5am287 flights85.2%
Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.
The overnight block holds up unusually well at 85.2% on time across 287 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 297 flights scheduled in it.
Across the year
Alaska on PDX to GEG through the year
August is the worst month at 77.4% on time, 16 points below June, the best at 93.3%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. July was the busiest month here, with 62 flights.
Across the week, Monday is the strongest day at 89.4% on time and Thursday the weakest at 78.2%, a spread of 11 points.
Arrival by arrival
How late Alaska on PDX to GEG runs when it is late
The 89 late arrivals split 41 under half an hour, 36 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early113 flights18.9%
- Within 15 min395 flights66.2%
- 15–29 min late41 flights6.9%
- 30–59 min late36 flights6.0%
- 1–2 hours late11 flights1.8%
- 2+ hours late1 flights0.2%
Scale runs 0% to 100%.
Share of 597 completed flights by arrival against schedule.
20 of 87 late departures made up the time and arrived on time, 23% of them. 22 flights left on time and still arrived late.
The worst days
Worst days for Alaska on PDX to GEG
The latest arrival of the period was on 19 May 2026, 2 hours 21 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in October 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 May 2026 | 2 hours 21 minutes | Carrier |
| 24 October 2025 | 1 hour 49 minutes | Late-arriving aircraft |
| 27 October 2025 | 1 hour 46 minutes | Late-arriving aircraft |
| 25 October 2025 | 1 hour 38 minutes | Late-arriving aircraft |
| 2 August 2026 | 1 hour 30 minutes | Late-arriving aircraft |
Delay causes
Why Alaska runs late on this route
Carrier accounts for 45% of the 3,367 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Carrier
- 38%Late-arriving aircraft
- 17%National Airspace System
- 0%Extreme weather
38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,367 reported delay minutes here, that single category outweighs weather by 38 to one. The split is drawn from 3,367 reported delay minutes.
The largest share of delay minutes, 45%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,505 of the 3,367 delay minutes reported here.
Cancellations sit at 1.32% against a national 1.89%, 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 8.3% 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 90.3% on time across 605 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. 605 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. 605 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 85.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 597 completed flights over 12 months sit behind that.
Related
Where to go next
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.