Likely delayed: there are delays at AS 42's airports as of 6:45 PM ET. It arrived on time 48.9% of the time in June-August 2026. When it was late, the average delay was 1h 8m. 4.3% of flights were cancelled. SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed.
Likely delayed
Likely delayed: SFO has major delays (wind, max 5 hours and 41 minutes). Scheduled to leave at 1:38 PM local time.
Cancellation risk: High 4.3% of its flights were cancelled in June-August 2026; SFO has major delays.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Alaska Airlines for official times.
Book a backup seat SFO → JFKThis flight is cancelled often; a refundable backup costs little
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| SFO → JFK San Francisco, CA to New York, NY | 1:38 PM → 10:26 PM | 49% |
Local times. Schedules change; check your booking.
How reliable is AS 42?
| Arrived on time (within 15 min) | 48.9% |
| Average delay when late | 68 min |
| Cancelled | 4.3% |
| Diverted | 0% |
| Flights tracked | 92 |
Best and worst days to fly AS 42
AS 42 was most reliable on Tuesdays (75% on time) and least reliable on Thursdays (23%).
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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.
Other flights SFO → JFK
All flights on this route, ranked
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 42 delayed today?
SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed. Checked 6:45 PM ET. For this flight's gate and exact status, check the Alaska Airlines app.
Is AS 42 usually on time?
AS 42 arrived within 15 minutes of schedule 48.9% of the time in June-August 2026, with an average delay of 68 minutes when late.
How often is AS 42 cancelled?
4.3% of AS 42 flights were cancelled in June-August 2026.