Flight profile · Delta Air Lines

DL1666

Memphis (MEM) to Atlanta (ATL) · scheduled 6:00 AM – 8:23 AM

FlyerIntel does not track flights in the air. This page describes how DL1666 has historically performed, which is a different and more useful question when you are deciding what to book. For today’s status, check with Delta Air Lines.

How DL1666 performs

752 operations, 2024-06-07 to 2026-06-30.

On-time arrivals
91.3%
670 of 734 completed
Cancellation rate
2.26%
17 cancelled
Median arrival delay
-13 min
Average -5.2 min
Severe delays
3.5%
Arrived 60+ minutes late
Delay when late
86 min
Average, when 15+ min late
Departure punctuality
94.7%
Left the gate on time

DL1666 arrived on time 91.3% of the time, against 87.8% for all MEMATL flights — this specific departure is 3.5 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 2.9 points better.

Source: US DOT Bureau of Transportation Statistics · 752 operations between 2024-06-07 to 2026-06-30

Against the rest of the route

On timeCancelledMedian delaySevereFlights
DL166691.3%2.26%-13 min3.5%752
Delta Air Lines on MEMATL88.3%1.42%-13 min4.7%9,184
All MEMATL flights87.8%1.36%-12 min4.7%10,171

Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30

Other routes DL1666 has flown

A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.

RouteOperatedFlightsOn time
AUSMSP Austin to Minneapolis2023-12-162024-06-0649
MSPIAH Minneapolis to Houston2024-05-112024-06-015
ATLBTR Atlanta to Baton Rouge2024-03-102024-05-0658
BTRATL Baton Rouge to Atlanta2024-03-102024-05-0658
FLLDTW Fort Lauderdale to Detroit2024-01-082024-03-0962
MSPSFO Minneapolis to San Francisco2023-09-052023-12-1575
SFOMSP San Francisco to Minneapolis2023-11-242023-11-241
ORDSLC Chicago to Salt Lake City2023-10-092023-11-0427
ORDSEA Chicago to Seattle2023-07-102023-09-0448
IAHLGA Houston to New York2023-07-152023-09-028

Because the same number has served different journeys, the statistics above describe only the route DL1666 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 752 records of DL1666 operating MEMATL, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.

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