Flight profile · Delta Air Lines
DL1138
Boston (BOS) to Minneapolis (MSP) · scheduled 8:05 AM – 10:12 AM
How DL1138 performs
649 operations, 2023-07-01 to 2026-06-30.
DL1138 arrived on time 91.9% of the time, against 82.8% for all BOS → MSP flights — this specific departure is 9.2 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 7.8 points better.
Source: US DOT Bureau of Transportation Statistics · 649 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1138 | 91.9% | 0.62% | -12 min | 2.2% | 649 |
| Delta Air Lines on BOS → MSP | 84.2% | 0.70% | -10 min | 5.1% | 5,534 |
| All BOS → MSP flights | 82.8% | 0.79% | -9 min | 5.9% | 6,094 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
Other routes DL1138 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 |
|---|---|---|---|
| JFK→ORD New York to Chicago | 2026-01-10 – 2026-03-07 | 9 | — |
| SAN→JFK San Diego to New York | 2026-01-05 – 2026-03-06 | 35 | — |
| ORD→MSP Chicago to Minneapolis | 2025-06-08 – 2025-12-19 | 190 | 73.9% |
| HSV→ATL Huntsville to Atlanta | 2025-02-08 – 2025-03-08 | 9 | — |
| ORD→LGA Chicago to New York | 2025-01-06 – 2025-03-07 | 45 | — |
| DTW→PVD Detroit to Providence/Warwick | 2024-04-09 – 2024-05-06 | 28 | — |
| DCA→MSP Washington to Minneapolis | 2024-01-08 – 2024-03-09 | 60 | — |
| MSP→DCA Minneapolis to Washington | 2024-01-08 – 2024-03-09 | 60 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1138 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 649 records of DL1138 operating BOS → MSP, 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.