YX5619

YX5619 (Republic Airways) is a multi-stop service on 11 routes, busiest Boston to Milwaukee. Of 948 departures recorded from October 2024 to July 2026, 75.2% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January3329▼ 12.1%
February28280.0%
March2849▲ 75.0%
April2652▲ 100.0%
May5052▲ 4.0%
June5452▼ 3.7%
July5554▼ 1.8%
August58––
September60––
October54–in progress
November49––
December12––
Year to date (Jan–Jul)274316▲ 15.3%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January97.0%96.2%▼ 0.8%
February80.8%92.0%▲ 13.9%
March89.3%78.7%▼ 11.8%
April96.2%78.9%▼ 18.0%
May58.3%73.1%▲ 25.3%
June68.5%88.0%▲ 28.4%
July51.0%70.0%▲ 37.3%
August76.8%––
September51.7%––
October62.0%–in progress
November78.1%––
December81.8%––
Year-to-date average (Jan–Jul)77.3%82.4%▲ 6.6%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January03–
February23▲ 50.0%
March02–
April00–
May20▼ 100.0%
June02–
July440.0%
August2––
September0––
October4–in progress
November8––
December1––
Year to date (Jan–Jul)814▲ 75.0%

according to the US BTS · October 2024 → July 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 96.1% 911
  • Cancelled 3.9% 37

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026

On time, leg by leg

  1. BOS–MKE459 73.4%
  2. MKE–BOS406 75.1%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
BOS MKE Boston Logan International Airport – General Mitchell International Airport 1,380 12.2 min 73.4% 459
MKE BOS General Mitchell International Airport – Boston Logan International Airport 1,380 12.8 min 75.1% 406
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 24 24 87.5% 0
November 2024 44 44 72.7% 0
December 2024 57 57 86.0% 0
January 2025 33 33 97.0% 0
February 2025 28 26 80.8% 2
March 2025 28 28 89.3% 0
April 2025 26 26 96.2% 0
May 2025 50 48 58.3% 2
June 2025 54 54 68.5% 0
July 2025 55 51 51.0% 4
August 2025 58 56 76.8% 2
September 2025 60 60 51.7% 0
October 2025 54 50 62.0% 4
November 2025 49 41 78.1% 8
December 2025 12 11 81.8% 1
January 2026 29 26 96.2% 3
February 2026 28 25 92.0% 3
March 2026 49 47 78.7% 2
April 2026 52 52 78.9% 0
May 2026 52 52 73.1% 0
June 2026 52 50 88.0% 2
July 2026 54 50 70.0% 4

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