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Flight YX4639

Republic Airways flight YX4639

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Looking for YX4639 in the air…

Nashville (BNA) to Raleigh/Durham (RDU)

Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 66 minutes. It was cancelled 0.7% of the time.

On-time arrivals
87.7%
Less than 15 minutes late
Cancelled
0.7%
Of scheduled flights
Average delay when late
66 min
Flights arriving 15+ minutes late
Flights tracked
140
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 41%
  • Late-arriving aircraft 37%
  • Air traffic control & airport 22%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Washington (DCA) to Providence/Warwick (PVD)

Historically, this flight arrives 15+ minutes late 6% of the time, and when it is late the delay averages 85 minutes. It was cancelled 5.3% of the time.

On-time arrivals
94.4%
Less than 15 minutes late
Cancelled
5.3%
Of scheduled flights
Average delay when late
85 min
Flights arriving 15+ minutes late
Flights tracked
38
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 98%
  • Airline (crew, maintenance, cleaning) 2%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Chicago (ORD) to Rochester (ROC)

Historically, this flight arrives 15+ minutes late 34% of the time, and when it is late the delay averages 54 minutes. It was cancelled 5.4% of the time.

On-time arrivals
65.7%
Less than 15 minutes late
Cancelled
5.4%
Of scheduled flights
Average delay when late
54 min
Flights arriving 15+ minutes late
Flights tracked
37
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 40%
  • Extreme weather 32%
  • Late-arriving aircraft 27%
  • Airline (crew, maintenance, cleaning) 1%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Washington (DCA) to Columbia (CAE)

Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 32 minutes. It was cancelled 0.0% of the time.

On-time arrivals
84.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
32 min
Flights arriving 15+ minutes late
Flights tracked
33
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 55%
  • Airline (crew, maintenance, cleaning) 45%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Atlanta (ATL) to New York (LGA)

Historically, this flight arrives 15+ minutes late 20% of the time, and when it is late the delay averages 113 minutes. It was cancelled 3.8% of the time.

On-time arrivals
80.0%
Less than 15 minutes late
Cancelled
3.8%
Of scheduled flights
Average delay when late
113 min
Flights arriving 15+ minutes late
Flights tracked
26
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 66%
  • Air traffic control & airport 34%
  • Security 0%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%

Share of delay minutes airlines attributed to each cause (BTS).

Boston (BOS) to New York (LGA)

Historically, this flight arrives 15+ minutes late 44% of the time, and when it is late the delay averages 102 minutes. It was cancelled 21.7% of the time.

On-time arrivals
55.6%
Less than 15 minutes late
Cancelled
21.7%
Of scheduled flights
Average delay when late
102 min
Flights arriving 15+ minutes late
Flights tracked
23
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 57%
  • Late-arriving aircraft 30%
  • Airline (crew, maintenance, cleaning) 14%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

New York (LGA) to Atlanta (ATL)

Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 135 minutes. It was cancelled 4.8% of the time.

On-time arrivals
85.0%
Less than 15 minutes late
Cancelled
4.8%
Of scheduled flights
Average delay when late
135 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 59%
  • Late-arriving aircraft 36%
  • Air traffic control & airport 5%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

New York (LGA) to Buffalo (BUF)

Only 19 flights on record, which is too few for reliable odds.

On-time arrivals
80.0%
Less than 15 minutes late
Cancelled
21.1%
Of scheduled flights
Average delay when late
30 min
Flights arriving 15+ minutes late
Flights tracked
19
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 62%
  • Air traffic control & airport 36%
  • Airline (crew, maintenance, cleaning) 2%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Washington (DCA) to Wilmington (ILM)

Only 4 flights on record, which is too few for reliable odds.

On-time arrivals
100.0%
Less than 15 minutes late
Cancelled
25.0%
Of scheduled flights
Average delay when late
—
Flights arriving 15+ minutes late
Flights tracked
4
Scheduled flights in the period

Detroit (DTW) to Miami (MIA)

Only 2 flights on record, which is too few for reliable odds.

On-time arrivals
100.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
—
Flights arriving 15+ minutes late
Flights tracked
2
Scheduled flights in the period

Miami (MIA) to Detroit (DTW)

Only 2 flights on record, which is too few for reliable odds.

On-time arrivals
100.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
—
Flights arriving 15+ minutes late
Flights tracked
2
Scheduled flights in the period

Raleigh/Durham (RDU) to New York (LGA)

Only 2 flights on record, which is too few for reliable odds.

On-time arrivals
100.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
—
Flights arriving 15+ minutes late
Flights tracked
2
Scheduled flights in the period

In the news

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 86.7% 30
October 2025 80.0% 5
November 2025 87.0% 24
December 2025 73.1% 30
January 2026 75.9% 31
February 2026 78.6% 28
March 2026 81.4% 45
April 2026 93.3% 30
May 2026 86.7% 32
June 2026 90.0% 30
July 2026 96.7% 31
August 2026 64.0% 31

Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data

Latest airport & airline headlines

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Headlines found by Google News; stories open on the publisher's site.