DL1399Delta Air Lines · BOS → MIA
live · 18m ago
Route confirmed Delta Air Lines

DL1399 BostonBOS · 07:15 MiamiMIA · 10:52

DL1399 by Delta Air Lines flies from Boston (BOS) to Miami (MIA) for the Thu, Nov 5 departure.

Right nowOn Time · gate E9
07:15

departs BOS · on schedule

Wins back in air~24 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 3 operations · gate push → arrival
0+30+60+90 min
11-04
−5 gate · −33 arrival
11-03
−10 gate · −30 arrival
11-02
CANCELLED

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
BOSBostonOn-time likelyBOS delay board →
MIAMiamiOn-time likelyMIA delay board →
BOS→MIAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
36%Chance of 15+ min delay
3.5%Chance of cancellation
+5 minTypical airport delay in this weather

Conditions at BOS and MIA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at Boston

Forecast

Thu 5 Nov, local date

High23°Clikely 21°C to 24°C
Low15°Clikely 14°C to 17°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Miami

Forecast

Thu 5 Nov, local date

High30°Clikely 29°C to 31°C
Low24°Clikely 23°C to 25°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Boston to Miami flights today

same route · Delta Air Lines
DL8800departs 11:10
DL776departs 15:33

If DL1399 is cancelled, these are the other Delta Air Lines nonstop flights from Boston to Miami on the same day, with scheduled departure times in BOS local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How DL1399 actually runs

Pro Flight Search has tracked every published board update for DL1399 across the BOS and MIA boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: left about 5 min early but landed about 31 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how DL1399 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-04BOS 07:15 07:10 (−5)MIA 10:52 10:19 (−33)
11-03BOS 07:15 07:05 (−10)MIA 10:52 10:22 (−30)
11-02CANCELLED

Aircraft

Recent tails: N377DE, N3766.

Board clocks recorded as BOS and MIA published them.

Planning around DL1399? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: DL1399 Boston to Miami on-time performance, measured from the BOS and MIA airport boards.

Canonical URL
https://proflightsearch.com/flight/DL1399
How we measure this →