Flight profile · Delta Air Lines
DL1432
Boston (BOS) to Detroit (DTW) · scheduled 5:15 PM – 7:20 PM
How DL1432 performs
398 operations, 2025-05-07 to 2026-06-30.
DL1432 arrived on time 67.7% of the time, against 79.1% for all BOS → DTW flights — this specific departure is 11.4 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 13.9 points worse.
Source: US DOT Bureau of Transportation Statistics · 398 operations between 2025-05-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1432 | 67.7% | 1.01% | -1 min | 12.7% | 398 |
| Delta Air Lines on BOS → DTW | 81.6% | 1.17% | -9 min | 7.4% | 5,112 |
| All BOS → DTW flights | 79.1% | 1.33% | -8 min | 8.8% | 8,042 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-05-07 to 2026-06-30
Other routes DL1432 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→IAH Atlanta to Houston | 2025-12-20 – 2026-01-04 | 12 | — |
| IAH→ATL Houston to Atlanta | 2025-12-20 – 2026-01-04 | 12 | — |
| SLC→PHX Salt Lake City to Phoenix | 2024-06-07 – 2025-04-12 | 288 | 83.3% |
| PHX→SLC Phoenix to Salt Lake City | 2024-06-07 – 2025-04-12 | 251 | 83.1% |
| DTW→SAT Detroit to San Antonio | 2024-05-07 – 2024-06-06 | 31 | — |
| MSP→IAH Minneapolis to Houston | 2024-04-09 – 2024-05-06 | 28 | — |
| SLC→STL Salt Lake City to St. Louis | 2024-03-10 – 2024-04-08 | 30 | — |
| DAL→ATL Dallas to Atlanta | 2023-07-01 – 2024-03-09 | 184 | 85.2% |
| LAS→SLC Las Vegas to Salt Lake City | 2024-02-06 – 2024-02-12 | 4 | — |
| RSW→JFK Fort Myers to New York | 2023-12-16 – 2024-01-07 | 20 | — |
| EWR→MSP Newark to Minneapolis | 2023-10-29 – 2023-11-04 | 6 | — |
| MSP→EWR Minneapolis to Newark | 2023-11-01 – 2023-11-04 | 4 | — |
| TYS→ATL Knoxville/Maryville to Atlanta | 2023-10-31 – 2023-10-31 | 1 | — |
| ATL→DTW Atlanta to Detroit | 2023-10-28 – 2023-10-28 | 1 | — |
| BNA→ATL Nashville to Atlanta | 2023-10-09 – 2023-10-27 | 19 | — |
| ATL→DAL Atlanta to Dallas | 2023-07-01 – 2023-10-08 | 100 | 78.8% |
Because the same number has served different journeys, the statistics above describe only the route DL1432 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.
74 min late
against a median of 1 min early
DL1432 is a flight whose average understates its risk: a typical day arrives 1 min early, but the worst tenth of days are 75 minutes worse than that. If the day has something unmissable in it, the median is the wrong number to plan against.
Percentiles over 398 operations. Cancelled and diverted flights have no arrival time and are counted separately rather than as very late arrivals.
Why DL1432 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for DL1432 on BOS → DTW. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on BOS → DTW
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL1019 | Delta Air Lines | 95.0% | 15 min early | 754 |
| DL1748 | Delta Air Lines | 88.1% | 11 min early | 1,090 |
| DL2222 | Delta Air Lines | 82.8% | 8 min early | 1,090 |
| B61037 | JetBlue | 77.2% | 8 min early | 693 |
| B61237 | JetBlue | 68.4% | 2 min early | 635 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 398 records of DL1432 operating BOS → DTW, 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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