Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 2318
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29
DL 2318 · SNA → SEA
departs 6:45 PM PT · arrives 9:36 PM PT
Forecast issued Tue 10:00 PM ET · 0h before departure
Watch this flight
Other days
Tue 9/29
Today 45%
Fri 10/2 33%
Sun 10/4 35%
Mon 10/5 28%
Tue 10/6 18%
Wed 10/7 16%
Odds over time
Arrive at SEA more than 15 minutes late?
36%
chance · ±2 pts
+3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
36%
Leave 15+ late
37%
Arrive 1h+ late
9%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 34% · changed +3 pts in 24h
+3 pts
36%
Yes 36%
No 64%
Leave SNA more than 15 minutes late?
Calm-weather odds: 37% · changed +9 pts in 24h
+9 pts
37%
Yes 37%
No 63%
Arrive at SEA more than an hour late?
Calm-weather odds: 8% · changed +0 pts in 24h
+0 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to SEA?
On time or early
63%
15–30 min late
10%
30 min–1 hour late
17%
1–2 hours late
5%
Over 2 hours late
3%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into SEA at that hour are often late
↑
Cloud base down to 500 ft forecast at SEA that day
↑
6pm departures from SNA are often late
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at SNA
Weather at each end
SNA (origin)
Gusts 17 kt Ceiling none (clear) Visibility 10+ mi Precip none
SEA (destination)
Gusts 24 kt Ceiling 500 ft Visibility 3 mi Precip 0.04 in
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.