DL1221Delta Air Lines · MKE → ATL
updated 2h ago
Route confirmed Delta Air Lines

DL1221 MilwaukeeMKE · 05:30 AtlantaATL · 08:34

DL1221 by Delta Air Lines flies from Milwaukee (MKE) to Atlanta (ATL) for the Sun, Nov 8 departure.

Right nowLanded in Atlanta · today
08:07

arrived at ATL · 27 min early

⚖ DL1221 typically leaves +4 and lands −28. The air wins minutes back.
Typical gate push+4 minmedian posted departure
Typical arrival−28 minmedian over 14 operations
Wins back in air~32 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 14tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-08
+11 gate · −27 arrival
11-07
+5 gate · −31 arrival
11-06
+11 gate · −24 arrival
11-05
+13 gate · −15 arrival
11-04
+8 gate · +2 arrival
11-03
−1 gate · −31 arrival
11-02
−1 gate · −35 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 −28 min · 0 cancelled · 14 operations tracked

The route today

live boards
MKEMilwaukeeOn-time likelyMKE delay board →
ATLAtlantaOn-time likelyATL delay board →
MKE→ATLevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
35%Chance of 15+ min delay
0.7%Chance of cancellation
+11 minTypical airport delay in this weather

Conditions at MKE and ATL 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 Milwaukee

Forecast

Mon 9 Nov, local date

High14°Clikely 12°C to 15°C
Low3°Clikely 2°C to 4°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 Atlanta

Forecast

Mon 9 Nov, local date

High22°Clikely 20°C to 23°C
Low8°Clikely 7°C to 9°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 Milwaukee to Atlanta flights today

same route · Delta Air Lines
DL1236departs 07:03
DL2999departs 10:16
DL1151departs 12:36
DL1246departs 14:59
DL2152departs 16:29
DL1206departs 18:35

If DL1221 is cancelled, these are the other Delta Air Lines nonstop flights from Milwaukee to Atlanta on the same day, with scheduled departure times in MKE 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 DL1221 actually runs

Pro Flight Search has tracked every published board update for DL1221 across the MKE and ATL boards: schedule changes, gate pushes and actual clocks. Usually lands ~21 min early. Based on 14 confirmed landings · 14/14 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 DL1221 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
11-08MKE 05:30 05:41 (+11)ATL 08:34 08:07 (−27)
11-07MKE 05:30 05:35 (+5)ATL 08:34 08:03 (−31)
11-06MKE 05:30 05:41 (+11)ATL 08:34 08:10 (−24)
11-05MKE 05:30 05:43 (+13)ATL 08:34 08:19 (−15)
11-04MKE 05:30 05:38 (+8)ATL 08:34 08:36 (+2)
11-03MKE 05:30 05:29 (−1)ATL 08:34 08:03 (−31)
11-02MKE 05:30 05:29 (−1)ATL 08:34 07:59 (−35)
11-01MKE 05:30 05:33 (+3)ATL 08:34 08:08 (−26)
10-31MKE 05:30 05:31 (+1)ATL 08:34 08:03 (−31)
10-30MKE 05:30 05:31 (+1)ATL 08:34 08:01 (−33)
10-29MKE 05:30 05:27 (−3)ATL 08:34 07:56 (−38)
10-28MKE 05:30 05:52 (+22)ATL 08:34 08:25 (−9)
10-27MKE 05:30 05:33 (+3)ATL 08:34 08:05 (−29)
10-26MKE 05:30 05:38 (+8)ATL 08:34 08:06 (−28)

Aircraft

Recent tails: N823DN, N854DN, N864DN, N874DN.

Board clocks recorded as MKE and ATL published them.

Planning around DL1221? 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: DL1221 Milwaukee to Atlanta on-time performance, measured from the MKE and ATL airport boards.

Canonical URL
https://proflightsearch.com/flight/DL1221
How we measure this →