Schedule: the flights that flew on Tuesday, Oct 6, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 661 SCHEDULED · TYPICAL SCHEDULE

Tuesday, October 13

DL 661 · SEA → SNA

departs 10:02 AM PT · arrives 12:47 PM PT

Forecast issued Sun 3:00 PM ET · 46h before departure

Arrive at SNA more than 15 minutes late?

19% chance · ±2 pts +1 pt · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to SNA?

On time or early
81%
15–30 min late
10%
30 min–1 hour late
4%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
<1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ 10am departures from SEA are often late

↑ SNA is prone to delays

↑ Arrivals into SNA at that hour are often late

↓ Cloud base down to 800 ft forecast at SEA that day

↓ Tuesdays in October are usually quieter than average

Weather at each end

SEA (origin) Gusts5 kt Ceiling800 ft Visibility10+ mi Precipnone

SNA (destination) Gusts13 kt Ceiling3,500 ft Visibility10+ mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

DL 661 · SEA → SNA

Odds over time

How late will it get to SNA?