YX5639

YX5639 (Republic Airways) is a multi-stop service on 13 routes, busiest Charlotte to Boston. Of 787 departures recorded from October 2024 to July 2026, 78.8% 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
January2749▲ 81.5%
February2454▲ 125.0%
March2935▲ 20.7%
April2928▼ 3.4%
May3231▼ 3.1%
June469▼ 80.4%
July604▼ 93.3%
August59––
September56––
October55–in progress
November49––
December43––
Year to date (Jan–Jul)247210▼ 15.0%

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
January88.5%81.0%▼ 8.5%
February86.4%80.0%▼ 7.4%
March96.6%66.7%▼ 30.9%
April82.8%88.5%▲ 6.9%
May71.9%87.1%▲ 21.2%
June62.8%100.0%▲ 59.3%
July52.9%100.0%▲ 88.9%
August84.2%––
September91.1%––
October90.2%–in progress
November64.1%––
December68.3%––
Year-to-date average (Jan–Jul)77.4%86.2%▲ 11.3%

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
January17▲ 600.0%
February24▲ 100.0%
March05–
April02–
May00–
June30▼ 100.0%
July90▼ 100.0%
August2––
September0––
October4–in progress
November10––
December2––
Year to date (Jan–Jul)1518▲ 20.0%

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 93.5% 736
  • Cancelled 6.5% 51

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 25, 2026

On time, leg by leg

  1. CLT–BOS228 82.7%
  2. LGA–GRR168 79.4%
  3. GRR–LGA167 68.2%
  4. MKE–LGA57 84.3%
  5. LGA–MKE57 80.8%
  6. CMH–DTW36 86.1%
  7. LGA–SAV31 54.2%

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

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 17 17 82.4% 0
November 2024 27 27 77.8% 0
December 2024 24 24 79.2% 0
January 2025 27 26 88.5% 1
February 2025 24 22 86.4% 2
March 2025 29 29 96.6% 0
April 2025 29 29 82.8% 0
May 2025 32 32 71.9% 0
June 2025 46 43 62.8% 3
July 2025 60 51 52.9% 9
August 2025 59 57 84.2% 2
September 2025 56 56 91.1% 0
October 2025 55 51 90.2% 4
November 2025 49 39 64.1% 10
December 2025 43 41 68.3% 2
January 2026 49 42 81.0% 7
February 2026 54 50 80.0% 4
March 2026 35 30 66.7% 5
April 2026 28 26 88.5% 2
May 2026 31 31 87.1% 0
June 2026 9 9 100.0% 0
July 2026 4 4 100.0% 0

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