DL1240Delta Air Lines · ATL → DTW
updated 3h ago
Route confirmed Delta Air Lines

DL1240 AtlantaATL · 11:08 DetroitDTW · 13:06

DL1240 by Delta Air Lines flies from Atlanta (ATL) to Detroit (DTW) for the Sun, Nov 1 departure.

Right nowExpected · today · as of 10:03
11:08

departs ATL · on schedule

⚖ DL1240 typically leaves +17 and lands −17. The air wins minutes back.
Typical gate push+17 minmedian posted departure
Typical arrival−17 minmedian over 13 operations
Wins back in air~34 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 13tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-31
+14 gate · −21 arrival
10-30
+9 gate · −21 arrival
10-29
+9 gate · −23 arrival
10-28
+20 gate · −17 arrival
10-27
+2 gate · −34 arrival
10-26
+32 gate · +5 arrival
10-25
+17 gate · −9 arrival

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

The last 30 days

arrival outcome per operation

median arrival −17 min · 0 cancelled · 13 operations tracked

The route today

live boards
ATLAtlantaOn-time likelyATL delay board →
DTWDetroitOn-time likelyDTW delay board →
ATL→DTWevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
22%Chance of 15+ min delay
1.0%Chance of cancellation
+4 minTypical airport delay in this weather

Driven mainly by ATL (Atlanta), currently flying MVFR (marginal visual). 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 on this route

Forecast

Atlanta to Detroit with Delta Air Lines · Mon 2 Nov, local date

Outlook: about usual
Chance a departure is cancelled
0.1%15.4× usual
Chance a departure leaves 60+ min late
5.9%0.7× usual

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 12 departures a day on this route with this airline. · 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 Atlanta to Detroit flights today

same route · Delta Air Lines
DL8784departs 06:30
DL1646departs 07:30
DL2084departs 08:30
DL1298departs 09:32
DL8809departs 12:10
DL8770departs 12:35

If DL1240 is cancelled, these are the other Delta Air Lines nonstop flights from Atlanta to Detroit on the same day, with scheduled departure times in ATL 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 DL1240 actually runs

Pro Flight Search has tracked every published board update for DL1240 across the ATL and DTW boards: schedule changes, gate pushes and actual clocks. Usually lands ~8 min early. Based on 12 confirmed landings · 12/12 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how DL1240 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
10-31ATL 11:08 11:22 (+14)DTW 13:06 12:45 (−21)
10-30ATL 11:08 11:17 (+9)DTW 13:06 12:45 (−21)
10-29ATL 11:08 11:17 (+9)DTW 13:06 12:43 (−23)
10-28ATL 11:08 11:28 (+20)DTW 13:06 12:49 (−17)
10-27ATL 11:08 11:10 (+2)DTW 13:06 12:32 (−34)
10-26ATL 11:08 11:40 (+32)DTW 13:06 13:11 (+5)
10-25ATL 11:08 11:25 (+17)DTW 13:06 12:57 (−9)
10-24ATL 11:08 11:24 (+16)DTW 13:06 13:00 (−6)
10-23ATL 11:08 11:35 (+27)DTW 13:06 13:05 (−1)
10-22ATL 11:08 11:41 (+33)DTW 13:06 13:08 (+2)
10-21ATL 11:08 11:22 (+14)DTW 13:06 12:48 (−18)
10-19ATL 11:08 11:26 (+18)DTW 13:06 12:47 (−19)
10-18ATL 11:08 11:36 (+28)DTW 13:06 13:04 (−2)

Aircraft

Recent tails: N123DW, N101DQ, N112DN, N355NW.

Board clocks recorded as ATL and DTW published them.

Planning around DL1240? 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: DL1240 Atlanta to Detroit on-time performance, measured from the ATL and DTW airport boards.

Canonical URL
https://proflightsearch.com/flight/DL1240
How we measure this →