Flight number record
AS 325
Alaska Airlines · Chicago to Portland
- Route
- ORD → PDX
- Departs
- 14:12
- Flights
- 351
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 325, check with Alaska Airlines.
AS 325 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 351 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so AS 325 runs 8 points behind the country as a whole. Across a thousand flights that is about 81 extra late arrivals.
Key figures
On time
69.2%
Arrivals under 15 minutes late, of 347 completed flights
Avg delay
63 min
Across delayed arrivals only, not all flights
Cancelled
1.14%
National rate is 1.89%
1 hour+ late
7.8%
National rate is 8.3%
These figures cover 351 flights between September 2025 and August 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.
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Schedule
When AS 325 flies
AS 325 flies ORD to PDX without a single fixed slot. Its most common scheduled departure was 14:12, used on 78 of 351 flights, with 14:07 (66 flights) and 14:05 (42 flights) next.
- Departs 14:1278 flights22.2%
- Departs 14:0766 flights18.8%
- Departs 14:0542 flights12.0%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 14:12 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and AS 325 runs 3 points worse at 69.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
AS 325 next to ORD to PDX
Every carrier on ORD to PDX combined arrived on time 67.6% of the time across 2,811 flights, so AS 325 is 2 points ahead of it. Across its whole network Alaska Airlines managed 79.7%, which this flight trails by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 325thin sample | 351 | 69.2% | 63 min | 1.14% | C |
| All Alaska Airlines on ORD–PDX | 498 | 70.7% | 60 min | 1.20% | C |
| All carriers on ORD–PDX | 2,811 | 67.6% | 68 min | 0.85% | C+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 325 quarter by quarter
AS 325 did not run the same all year. Its best quarter was Jan–Mar 2026 at 79.2% on time and its weakest Oct–Dec 2025 at 51.7%, a swing of 28 points on roughly 70 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 202530 flights76.7%
- Oct–Dec 202591 flights51.7%
- Jan–Mar 202678 flights79.2%
- Apr–Jun 202691 flights75.6%
- Jul–Sep 202661 flights68.9%
Scale runs 45% to 85%.
By weekday, AS 325 did best on Saturday at 79.5% on time and worst on Wednesday at 63.0%. Each day rests on about 50 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 325 runs when it is late
The 107 late arrivals split 51 under half an hour, 29 between 30 and 60 minutes, and 27 an hour or more.
- 15+ min early72 flights20.7%
- Within 15 min168 flights48.4%
- 15–29 min late51 flights14.7%
- 30–59 min late29 flights8.4%
- 1–2 hours late13 flights3.7%
- 2+ hours late14 flights4.0%
Scale runs 0% to 100%.
Share of 347 completed flights by arrival against schedule.
25 of 102 late departures made up the time and arrived on time, 25% of them. In the other direction, 30 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 AS 325
The latest arrival of the period was on 3 July 2026, 8 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 |
|---|---|---|
| 3 July 2026 | 8 hours 18 minutes | Late-arriving aircraft |
| 27 July 2026 | 7 hours 18 minutes | Late-arriving aircraft |
| 19 September 2025 | 7 hours 12 minutes | Late-arriving aircraft |
| 31 August 2026 | 6 hours 3 minutes | Late-arriving aircraft |
| 7 June 2026 | 3 hours 59 minutes | Carrier |
Delay causes
Why AS 325 runs late
Late-arriving aircraft accounts for 63% of the 6,766 delay minutes carriers reported here, and the remaining four split what is left.
- 63%Late-arriving aircraft
- 22%National Airspace System
- 12%Carrier
- 2%Extreme weather
- 1%Security
63% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,766 reported delay minutes here, that single category outweighs weather by 31 to one. The split is drawn from 6,766 delay minutes reported on AS 325.
Cancellations sit at 1.14% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
7.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
At 1,739 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
Every one of the 351 flights under AS 325 in the data flew ORD to PDX. 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. 351 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 325
For a booking, read AS 325 as 69.2% on time with 1.14% cancelled over 351 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ORD to PDX, every carrier and departure
- PDX to ORD, the return direction
- United Airlines 1994 on the same route84.0%
- Chicago O'Hare International (ORD) delay statistics
- Portland International (PDX) delay statistics
- Alaska Airlines on-time record
- Every Alaska Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.