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 2570
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
DL 2570 · ORD → BOS
departs 10:28 AM CT · arrives 1:59 PM ET
Forecast issued Tue 11:00 PM ET · 36h before departure
Watch this flight
Other days
Today 46%
Thu 10/1
Fri 10/2 15%
Sat 10/3 15%
Sun 10/4 16%
Mon 10/5 18%
Tue 10/6 14%
Odds over time
Arrive at BOS more than 15 minutes late?
30%
chance · ±2 pts
−3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
31%
Arrive 1h+ late
10%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 9% · changed −3 pts in 24h
−3 pts
30%
Yes 30%
No 70%
Leave ORD more than 15 minutes late?
Calm-weather odds: 12% · changed +0 pts in 24h
+0 pts
31%
Yes 31%
No 69%
Arrive at BOS more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to BOS?
On time or early
69%
15–30 min late
3%
30 min–1 hour late
16%
1–2 hours late
6%
Over 2 hours late
4%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 300 ft, visibility down to 2 mi, 1.5 in of rain forecast at ORD that day
↑
10am departures from ORD are often late
↑
This flight has been late 24% of the time recently
↓
BOS usually runs smoothly
↓
Visibility down to 1 mi forecast at BOS that day
Weather at each end
ORD (origin)
Gusts 11 kt Ceiling 300 ft Visibility 2 mi Precip 1.48 in
BOS (destination)
Gusts 16 kt Ceiling none (clear) Visibility 1 mi Precip none
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.