About 1 in 8 AS 684 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (13%); 0.4% were cancelled. The typical flight landed 7 minutes early.
AS 684: DEN → PDX
Scheduled to leave Denver at 12:02 p.m. local time. Over the past year it arrived on time 87% of the time (247 flights), in line with other AS flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 40 | 88% |
| Tuesday | 39 | 82% |
| Wednesday | 33 | 82% |
| Thursday | 39 | 92% |
| Friday | 39 | 90% |
| Saturday | 17 | — |
| Sunday | 40 | 90% |
Why it was late
All flights DEN → PDX · Connecting off AS 684? Check the risk
AS 684: PDX → DEN
Scheduled to leave Portland at 7:00 a.m. local time. Over the past year it arrived on time 89% of the time (187 flights), in line with other AS flights on the route at that hour (90%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 30 | 90% |
| Tuesday | 29 | 90% |
| Wednesday | 23 | 83% |
| Thursday | 29 | 83% |
| Friday | 29 | 93% |
| Saturday | 17 | — |
| Sunday | 30 | 93% |
Why it was late
All flights PDX → DEN · Connecting off AS 684? Check the risk
Questions
How often is AS 684 from DEN to PDX late?
Alaska Airlines 684 from Denver, CO to Portland, OR arrived 15 or more minutes late, was diverted or was cancelled on 13% of 247 scheduled flights between September 2025 and August 2026. 0.4% were cancelled.
How often is AS 684 from PDX to DEN late?
Alaska Airlines 684 from Portland, OR to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 11% of 187 scheduled flights between September 2025 and August 2026. 0.5% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Alaska Airlines for today's flight. Method.