Flight profile · Delta Air Lines
DL2402
Detroit (DTW) to Philadelphia (PHL) · scheduled 9:40 PM – 11:17 PM
How DL2402 performs
1,015 operations, July 2023 – July 2026.
Source: US DOT Bureau of Transportation Statistics · 1,015 operations, July 2023 – July 2026 · If DL2402 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where DL2402 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| DL2402 | 81.2% | 1.58% | -11 min | 7.8% | 1,015 |
| Delta Air Lines on DTW → PHL | 82.5% | 1.32% | -11 min | 7.5% | 4,464 |
| All DTW → PHL flights | 80.5% | 2.33% | -10 min | 8.2% | 9,339 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Why DL2402 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for DL2402 on DTW → PHL. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies DL2402 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, DL2402 pushed back an average of 38 minutes late; when it came in on time or early, an average of 2 minutes late.
Each departure is matched to the flight the same aircraft flew into DTW just before it, using the tail number in the DOT file, 968 of 1,000 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| DL2402 | 17% | 51% | 11% |
| Network, same turn | 17% | 68% | 9% |
The schedule leaves a normal turn: enough time to clean and board if the aircraft is on time, little to spare if it is not.
The network row is every flight with a scheduled turn of 60 to 89 minutes. How often DL2402’s aircraft landed 15 or more minutes late is about the same as the network’s and, once the aircraft was late, how often DL2402 left 15 or more minutes late is lower than the network’s.
More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
From pushback to gate
When it leaves DTW late, does that still matter by the time it reaches PHL?
DL2402 pushes back an average of 9.9 minutes late and reaches the gate at PHL an average of 2.8 minutes late. The 7.1 minutes between those two figures are slack the published schedule already carries, which is why a late pushback on this flight does not reliably become a late arrival. It spends 16.4 minutes on the taxiways at DTW, 2.1 minutes shorter than a typical DTW departure in the same hour.
On arrival at PHL, DL2402 spends 5.8 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 2.3 minutes shorter than a typical PHL arrival (8.2 min).
Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached PHL. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 35,035 departures from DTW scheduled in the clock hour DL2402 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at PHL (305,143 flights), not just DL2402’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
The hour it leaves DTW
Part of any flight’s record belongs to the clock rather than to the flight. DL2402 has one departure time, so this is what that time is worth.
On-time arrival rate. 35,035 departures from DTW are scheduled in the 9 PM–10 PM hour over the period, against 388,632 across the whole day.
DL2402 is scheduled out of DTW at 9:40 PM, in the 9 PM–10 PM bank. Departures from DTW in that hour arrive on time 78.1% of the time against 79.6% across the airport’s whole day, so the hour DL2402 leaves in is an ordinary one for DTW and explains nothing about its record either way.
The two airport figures cover every departure from DTW to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Hours below 120 departures are not scored.
By day of week
Does DL2402 run worse on particular days?
Saturday is historically the most reliable day and Monday the least, a gap of 7.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Days with fewer than 120 operations are not scored.
Other routes DL2402 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.
| Route | Operated | Flights | On time |
|---|---|---|---|
| ATL→FAY Atlanta to Fayetteville | April 9, 2024 – May 6, 2024 | 28 | — |
| ATL→OKC Atlanta to Oklahoma City | January 20, 2024 – March 9, 2024 | 6 | — |
| IAH→LGA Houston to New York | January 8, 2024 – March 8, 2024 | 53 | — |
| LGA→IAH New York to Houston | January 8, 2024 – March 8, 2024 | 53 | — |
Because the same number has served different journeys, the statistics above describe only the route DL2402 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
45 min late
against a median of 11 min early
Percentiles over 1,015 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Data and methodology
Calculated by FlyerIntel from 1,015 records of DL2402 operating DTW → PHL, 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.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed