Tracked live by the FAA. The scheduled times shown are from a typical Wednesday because the FAA's flight plan was first seen after takeoff.

DELTA · FLIGHT DL 1439 SCHEDULED

Wednesday, September 30 Today

DL 1439 · TPA → BOS

departs 8:35 PM ET · arrives 11:47 PM ET

Forecast issued Wed 8:00 PM ET · 1h before departure

Arrive at BOS more than 15 minutes late?

80% chance · ±0 pts +22 pts · 24h

HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.

How late will it get to BOS?

On time or early
47%
15–30 min late
6%
30 min–1 hour late
21%
1–2 hours late
15%
Over 2 hours late
7%
Cancelled
4%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ Thunderstorms forecast at TPA that day

↑ Arrivals into BOS at that hour are often late

↑ Later flights pick up delays from earlier in the day

↓ Wednesdays in September are usually quieter than average

↓ Cloud base down to 700 ft, visibility down to 2 mi forecast at BOS that day

Weather at each end

TPA (origin) Gusts17 kt Ceiling6,000 ft Visibility5 mi Precip0.43 in

BOS (destination) Gusts8 kt Ceiling700 ft Visibility2 mi Precip0.02 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.

DL 1439 · TPA → BOS

Odds over time

How late will it get to BOS?