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 Tomorrow
DL 2570 · BOS → ORD
departs 7:30 AM ET · arrives 9:26 AM CT
Forecast issued Wed 2:00 AM ET · 30h before departure
Watch this flight
Other days
Today 28%
Thu 10/1
Fri 10/2 15%
Sat 10/3 10%
Sun 10/4 12%
Mon 10/5 15%
Tue 10/6 12%
Odds over time
Arrive at ORD more than 15 minutes late?
19%
chance · ±3 pts
+4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
12%
Arrive 1h+ late
6%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at ORD more than 15 minutes late?
Calm-weather odds: 8% · changed +4 pts in 24h
+4 pts
19%
Yes 19%
No 81%
Leave BOS more than 15 minutes late?
Calm-weather odds: 8% · changed +3 pts in 24h
+3 pts
12%
Yes 12%
No 88%
Arrive at ORD more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to ORD?
On time or early
79%
15–30 min late
1%
30 min–1 hour late
12%
1–2 hours late
4%
Over 2 hours late
2%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 600 ft, visibility down to 2 mi, 1.5 in of rain forecast at ORD that day
↑
Arrivals into ORD at that hour are often late
↑
This flight has been late 18% of the time recently
↓
Other factors
↓
Early flights usually leave on time
Weather at each end
BOS (origin)
Gusts 16 kt Ceiling none (clear) Visibility 0.8 mi Precip none
ORD (destination)
Gusts 11 kt Ceiling 600 ft Visibility 2 mi Precip 1.48 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.