No delays reported for F9 2276 (SEA → ONT) as of 6:45 PM ET. It arrived on time 86.2% of the time in June-August 2026. When it was late, the average delay was 1h 37m. 3.3% of flights were cancelled. Right now there are no reported delays at SEA, ONT.
Looks on time
Next leg SEA → ONT, scheduled 11:54 AM local time. No delays at SEA right now, and it usually runs on time.
Cancellation risk: Medium 3.3% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Frontier for official times.
Before you fly
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| SEA → ONT Seattle, WA to Ontario, CA | 11:54 AM → 2:45 PM | 86% |
Local times. Schedules change; check your booking.
How reliable is F9 2276?
| Arrived on time (within 15 min) | 86.2% |
| Average delay when late | 97 min |
| Cancelled | 3.3% |
| Diverted | 0% |
| Flights tracked | 90 |
Best and worst days to fly F9 2276
F9 2276 was most reliable on Tuesdays (100% on time) and least reliable on Thursdays (75%).
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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 Frontier to the Department of Transportation.
Other flights SEA → ONT
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 Frontier app.
Frontier 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 F9 2276 delayed today?
Right now there are no reported delays at SEA, ONT. Checked 6:45 PM ET. For this flight's gate and exact status, check the Frontier app.
Is F9 2276 usually on time?
F9 2276 arrived within 15 minutes of schedule 86.2% of the time in June-August 2026, with an average delay of 97 minutes when late.
How often is F9 2276 cancelled?
3.3% of F9 2276 flights were cancelled in June-August 2026.