Schedule: the flights that flew on Sunday, Oct 25, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1439
SCHEDULED · TYPICAL SCHEDULE
Sunday, November 1
DL 1439 · TPA → BOS
departs 7:55 PM ET · arrives 11:04 PM ET
Forecast issued Fri 5:00 PM ET · 52h before departure
Watch this flight
Other days
Today 30%
Sat 10/31 22%
Sun 11/1
Mon 11/2 20%
Tue 11/3 22%
Wed 11/4 16%
Thu 11/5 29%
Odds over time
Arrive at BOS more than 15 minutes late?
38%
chance · ±6 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
38%
Leave 15+ late
42%
Arrive 1h+ late
13%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.8d
Now
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 19% · changed – in 24h
–
38%
Yes 38%
No 62%
Leave TPA more than 15 minutes late?
Calm-weather odds: 27% · changed – in 24h
–
42%
Yes 42%
No 58%
Arrive at BOS more than an hour late?
Calm-weather odds: 6% · changed – in 24h
–
13%
Yes 13%
No 87%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
2%
Yes 2%
No 98%
How late will it get to BOS?
On time or early
60%
15–30 min late
8%
30 min–1 hour late
17%
1–2 hours late
9%
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
↑
0.6 in of rain forecast at TPA that day
↑
7pm departures from TPA are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at BOS
↓
Sundays in November are usually quieter than average
Weather at each end
TPA (origin)
Gusts 21 kt Ceiling 1,767 ft Visibility 4 mi Precip 0.62 in
BOS (destination)
Gusts 12 kt Ceiling none (clear) Visibility 10+ 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.