Carrier route record
ASMSP→PDX
Alaska Airlines · Minneapolis to Portland
- Flights
- 245
- Period
- September 2025 to August 2026
- Share of route
- 16%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Alaska Airlines.
Alaska on MSP to PDX lands a B, 7 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 245 flights, with a median arrival 9 minutes early.
Set against the rest of the country, Alaska's MSP to PDX record is 7 points better than the US average of 77.3%. That gap is worth roughly 66 fewer late arrivals for every thousand flights.
Key figures
On time
83.9%
Arrivals under 15 minutes late, of 242 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
1.22%
National rate is 1.89%
Whole route
81.7%
Every carrier on MSP to PDX, 1,577 flights
These figures cover 245 flights between September 2025 and August 2026. The median arrival is 9 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 MSP to PDX
Alaska flew 245 of the 1,577 flights on MSP to PDX, about 16% of it. Its 83.9% on time is 2 points better than the route as a whole, which runs 81.7%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Alaska at 83.9% to Delta at 81.4%.
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)thin sample | 245 | 83.9% | 65 min | 1.22% | B |
| Delta Air Lines | 1,332 | 81.4% | 51 min | 0.53% | B+ |
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Departure window
When Alaska runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 22 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am—
- 11am–2pm82 flights72.5%
- 2pm–5pm52 flights94.2%
- 5pm–8pm111 flights87.3%
- 8pm–5am—
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 72.5% on time against 94.2% for 2pm–5pm. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 5pm–8pm window is the busiest, with 111 flights scheduled in it.
Across the year
Alaska on MSP to PDX through the year
- Oct–Dec 202576 flights75.7%
- Jan–Mar 202619 flights—
- Apr–Jun 202688 flights95.4%
- Jul–Sep 202662 flights80.6%
Scale runs 65% 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 83.9% on time across 245 flights.
Alaska on MSP to PDX did not run the same all year. Its best quarter was Apr–Jun 2026 at 95.4% on time and its weakest Oct–Dec 2025 at 75.7%, a swing of 20 points on roughly 82 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.
Across the week, Monday is the strongest day at 89.5% on time and Tuesday the weakest at 73.5%, a spread of 16 points.
Arrival by arrival
How late Alaska on MSP to PDX runs when it is late
Alaska on MSP to PDX often beats the schedule: 90 of 242 completed flights, 37%, arrived 15 minutes or more early. The 39 late arrivals split 14 under half an hour, 15 between 30 and 60 minutes, and 10 an hour or more.
- 15+ min early90 flights37.2%
- Within 15 min113 flights46.7%
- 15–29 min late14 flights5.8%
- 30–59 min late15 flights6.2%
- 1–2 hours late6 flights2.5%
- 2+ hours late4 flights1.7%
Scale runs 0% to 100%.
Share of 242 completed flights by arrival against schedule.
A late pushback is often recovered here: of 38 departures that left 15 minutes late or more, 13 still arrived on time. In the other direction, 14 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at PDX.
The worst days
Worst days for Alaska on MSP to PDX
The latest arrival of the period was on 27 April 2026, 7 hours 18 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 April 2026 | 7 hours 18 minutes | Late-arriving aircraft |
| 1 January 2026 | 4 hours 55 minutes | Carrier |
| 15 August 2026 | 3 hours 21 minutes | Late-arriving aircraft |
| 5 July 2026 | 3 hours 14 minutes | Late-arriving aircraft |
| 10 April 2026 | 1 hour 58 minutes | Late-arriving aircraft |
Delay causes
Why Alaska runs late on this route
Late-arriving aircraft accounts for 47% of the 2,550 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Late-arriving aircraft
- 24%National Airspace System
- 23%Carrier
- 4%Extreme weather
- 1%Security
47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,550 reported delay minutes here, that single category outweighs weather by 12 to one. The split is drawn from 2,550 reported delay minutes.
Cancellations sit at 1.22% 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 4.1% 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.
The 1,426 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.
The return leg is a different operation and performs like one: it runs 91.0% on time across 245 flights, 7 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 7 points of difference.
One caution: this is a thin sample. 245 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 MSP to PDX
Put together: treat all of this as provisional. 245 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 83.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 242 completed flights over 12 months sit behind that.
Related
Where to go next
- MSP to PDX, every carrier
- Alaska on PDX to MSP, the return leg
- Delta Air Lines on MSP to PDX81.4%
- Alaska Airlines network-wide record
- Minneapolis-St Paul International (MSP) delay statistics
- Portland International (PDX) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.