No delays reported for AS 434 (SAN→RDU, RDU→SEA, SEA→PDX) as of 6:46 PM ET. It arrived on time 81.5% of the time in June-August 2026. When it was late, the average delay was 43 minutes. None were cancelled. Right now there are no reported delays at SAN, RDU, SEA, PDX.
May not fly today
Leg 3 of 3 (SEA → PDX): Next leg SEA → PDX, scheduled 6:51 PM local time. No delays at SEA right now, and it usually runs on time. This flight number flew about 5 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Low 0% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Alaska Airlines for official times.
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| SAN → RDU San Diego, CA to Raleigh/Durham, NC | 9:41 AM → 6:01 PM | 77% |
| RDU → SEA Raleigh/Durham, NC to Seattle, WA | 7:42 AM → 10:40 AM | 100% |
| SEA → PDX Seattle, WA to Portland, OR | 6:51 PM → 7:50 PM | 92% |
Local times. Schedules change; check your booking.
How reliable is AS 434?
| Arrived on time (within 15 min) | 81.5% |
| Average delay when late | 43 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 92 |
Best and worst days to fly AS 434
AS 434 was most reliable on Wednesdays (100% on time) and least reliable on Tuesdays (69%).
| Monday | |
| Tuesday | |
| Wednesday | |
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Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by Alaska Airlines to the Department of Transportation.
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the Alaska Airlines app.
Alaska Airlines delays and what you're owed · Airline phone numbers
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is AS 434 delayed today?
Right now there are no reported delays at SAN, RDU, SEA, PDX. Checked 6:46 PM ET. For this flight's gate and exact status, check the Alaska Airlines app.
Is AS 434 usually on time?
AS 434 arrived within 15 minutes of schedule 81.5% of the time in June-August 2026, with an average delay of 43 minutes when late.
How often is AS 434 cancelled?
0% of AS 434 flights were cancelled in June-August 2026.