YX3661

YX3661 (Republic Airways) is a multi-stop service on 27 routes, busiest Chicago to New York. Of 535 departures recorded from October 2024 to July 2026, 81.8% 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
January2631▲ 19.2%
February2528▲ 12.0%
March3129▼ 6.5%
April181▼ 94.4%
May1011▲ 10.0%
June2530▲ 20.0%
July3031▲ 3.3%
August21––
September19––
October31–in progress
November29––
December29––
Year to date (Jan–Jul)165161▼ 2.4%

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
January96.2%88.9%▼ 7.6%
February84.0%92.3%▲ 9.9%
March93.3%60.9%▼ 34.8%
April88.9%100.0%▲ 12.5%
May80.0%90.9%▲ 13.6%
June72.0%80.0%▲ 11.1%
July48.3%83.3%▲ 72.6%
August85.0%––
September89.5%––
October73.3%–in progress
November68.0%––
December75.0%––
Year-to-date average (Jan–Jul)80.4%85.2%▲ 6.0%

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
January04–
February02–
March16▲ 500.0%
April00–
May00–
June00–
July110.0%
August1––
September0––
October1–in progress
November4––
December1––
Year to date (Jan–Jul)213▲ 550.0%

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 95.3% 510
  • Cancelled 4.7% 25

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

On time, leg by leg

  1. ORD–LGA70 81.7%
  2. IAD–PWM52 98.1%
  3. CMH–ORD49 79.6%
  4. EWR–MSN45 88.6%
  5. IND–ORD37 86.1%
  6. SDF–EWR35 80.0%
  7. ORD–MCI35 44.1%
  8. RIC–EWR34 63.3%

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

Legs flown under this number

9
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 100.0% 0
November 2024 30 30 96.7% 0
December 2024 30 27 81.5% 3
January 2025 26 26 96.2% 0
February 2025 25 25 84.0% 0
March 2025 31 30 93.3% 1
April 2025 18 18 88.9% 0
May 2025 10 10 80.0% 0
June 2025 25 25 72.0% 0
July 2025 30 29 48.3% 1
August 2025 21 20 85.0% 1
September 2025 19 19 89.5% 0
October 2025 31 30 73.3% 1
November 2025 29 25 68.0% 4
December 2025 29 28 75.0% 1
January 2026 31 27 88.9% 4
February 2026 28 26 92.3% 2
March 2026 29 23 60.9% 6
April 2026 1 1 100.0% 0
May 2026 11 11 90.9% 0
June 2026 30 30 80.0% 0
July 2026 31 30 83.3% 1

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