Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 2543
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
DL 2543 · SEA → DEN
departs 1:50 PM PT · arrives 5:43 PM MT
Forecast issued Tue 5:00 PM ET · 48h before departure
Watch this flight
Other days
Today 22%
Wed 9/30 58%
Thu 10/1
Fri 10/2 29%
Sat 10/3 30%
Sun 10/4 30%
Mon 10/5 28%
Odds over time
Arrive at DEN more than 15 minutes late?
26%
chance · ±2 pts
−4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
26%
Leave 15+ late
26%
Arrive 1h+ late
8%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
Now
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 22% · changed −4 pts in 24h
−4 pts
26%
Yes 26%
No 74%
Leave SEA more than 15 minutes late?
Calm-weather odds: 19% · changed +0 pts in 24h
+0 pts
26%
Yes 26%
No 74%
Arrive at DEN more than an hour late?
Calm-weather odds: 5% · changed −1 pt in 24h
−1 pt
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
74%
15–30 min late
9%
30 min–1 hour late
9%
1–2 hours late
5%
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
↑
This flight has been late 47% of the time recently
↑
1pm departures from SEA are often late
↑
Arrivals into DEN at that hour are often late
↓
Mostly benign weather forecast at SEA
↓
DL's recent on-time record
Weather at each end
SEA (origin)
Gusts 7 kt Ceiling 3,900 ft Visibility 9 mi Precip none
DEN (destination)
Gusts 19 kt Ceiling none (clear) Visibility 10+ mi Precip 0.17 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.