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 1677
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
DL 1677 · BOS → AUS
departs 6:59 PM ET · arrives 10:26 PM CT
Forecast issued Tue 6:00 PM ET · 49h before departure
Watch this flight
Other days
Today 31%
Wed 9/30 37%
Thu 10/1
Fri 10/2 28%
Sun 10/4 41%
Mon 10/5 30%
Odds over time
Arrive at AUS more than 15 minutes late?
42%
chance · ±9 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
42%
Leave 15+ late
31%
Arrive 1h+ late
21%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.7d
Now
1d
12h
6h
Departs
Lands
Arrive at AUS more than 15 minutes late?
Calm-weather odds: 22% · changed – in 24h
–
42%
Yes 42%
No 58%
Leave BOS more than 15 minutes late?
Calm-weather odds: 20% · changed – in 24h
–
31%
Yes 31%
No 69%
Arrive at AUS more than an hour late?
Calm-weather odds: 6% · changed – in 24h
–
21%
Yes 21%
No 79%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
2%
Yes 2%
No 98%
How late will it get to AUS?
On time or early
57%
15–30 min late
9%
30 min–1 hour late
11%
1–2 hours late
16%
Over 2 hours late
5%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 1,300 ft, 1.0 in of rain forecast at AUS that day
↑
Arrivals into AUS at that hour are often late
↑
Later flights pick up delays from earlier in the day
↓
Visibility down to 2 mi forecast at BOS that day
↓
Other factors
Weather at each end
BOS (origin)
Gusts 16 kt Ceiling 10,000 ft Visibility 2 mi Precip none
AUS (destination)
Gusts 20 kt Ceiling 1,300 ft Visibility 3.66667 mi Precip 1.00 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.