Flight profile · Republic Airways
YX5644
Boston (BOS) to Baltimore (BWI) · scheduled 5:25 PM – 7:07 PM
How YX5644 performs
486 operations, 2025-01-06 to 2026-06-30.
YX5644 arrived on time 73.5% of the time, against 80.0% for all BOS → BWI flights — this specific departure is 6.5 percentage points worse than the route as a whole. Against Republic Airways’s own flights on this route it is 10.9 points worse.
Source: US DOT Bureau of Transportation Statistics · 486 operations between 2025-01-06 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| YX5644 | 73.5% | 2.88% | -8 min | 9.6% | 486 |
| Republic Airways on BOS → BWI | 84.4% | 2.15% | -11 min | 5.5% | 2,840 |
| All BOS → BWI flights | 80.0% | 1.85% | -8 min | 7.4% | 11,746 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-01-06 to 2026-06-30
Other routes YX5644 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 |
|---|---|---|---|
| BWI→BOS Baltimore to Boston | 2025-01-06 – 2026-06-30 | 455 | 67.4% |
| MCO→GRR Orlando to Grand Rapids | 2025-12-20 – 2026-01-04 | 14 | — |
| BUF→LGA Buffalo to New York | 2025-04-19 – 2025-05-03 | 3 | — |
| LGA→BUF New York to Buffalo | 2025-04-19 – 2025-05-03 | 3 | — |
| LGA→CHS New York to Charleston | 2024-12-21 – 2025-01-04 | 11 | — |
| RIC→LGA Richmond to New York | 2023-07-15 – 2024-12-20 | 10 | — |
| RIC→JFK Richmond to New York | 2024-11-15 – 2024-12-18 | 32 | — |
| JFK→MCI New York to Kansas City | 2024-11-03 – 2024-11-09 | 7 | — |
| MCI→JFK Kansas City to New York | 2024-11-03 – 2024-11-09 | 7 | — |
| JFK→SAV New York to Savannah | 2024-11-02 – 2024-11-02 | 1 | — |
| SDF→LGA Louisville to New York | 2024-09-15 – 2024-10-06 | 4 | — |
| CLT→LGA Charlotte to New York | 2024-06-07 – 2024-08-02 | 46 | — |
| LGA→CLT New York to Charlotte | 2024-06-07 – 2024-08-02 | 46 | — |
| BOS→PIT Boston to Pittsburgh | 2024-06-08 – 2024-07-06 | 5 | — |
| BOS→DCA Boston to Washington | 2024-05-07 – 2024-06-06 | 27 | — |
| DCA→MSN Washington to Madison | 2024-04-09 – 2024-05-06 | 24 | — |
| MSN→DCA Madison to Washington | 2024-04-09 – 2024-05-06 | 24 | — |
| BOS→ORD Boston to Chicago | 2024-03-10 – 2024-04-08 | 30 | — |
| ORD→BOS Chicago to Boston | 2024-03-10 – 2024-04-08 | 30 | — |
| BOS→CLT Boston to Charlotte | 2024-01-08 – 2024-03-08 | 46 | — |
| CLT→BOS Charlotte to Boston | 2023-09-19 – 2024-03-08 | 40 | — |
| LGA→SYR New York to Syracuse | 2023-12-07 – 2023-12-15 | 8 | — |
| SYR→LGA Syracuse to New York | 2023-12-07 – 2023-12-15 | 8 | — |
| BOS→LGA Boston to New York | 2023-10-29 – 2023-11-03 | 6 | — |
| MEM→BOS Memphis to Boston | 2023-09-05 – 2023-10-27 | 41 | — |
| BOS→SAV Boston to Savannah | 2023-07-02 – 2023-09-03 | 10 | — |
| SAV→BOS Savannah to Boston | 2023-07-02 – 2023-09-03 | 10 | — |
| LGA→RIC New York to Richmond | 2023-07-15 – 2023-09-02 | 8 | — |
Because the same number has served different journeys, the statistics above describe only the route YX5644 currently operates. Blending them would produce an average of two different flights.
Why YX5644 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for YX5644 on BOS → BWI. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 486 records of YX5644 operating BOS → BWI, 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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