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Flight UA1729

United Airlines flight UA1729

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  • Advisory Coastal Flood Statement FLL

    COASTAL FLOOD STATEMENT NOW IN EFFECT THROUGH THURSDAY EVENING

    Weather

Denver (DEN) to Phoenix (PHX)

Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 84 minutes. It was cancelled 0.0% of the time.

On-time arrivals
72.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
84 min
Flights arriving 15+ minutes late
Flights tracked
201
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 63%
  • Airline (crew, maintenance, cleaning) 25%
  • Air traffic control & airport 13%
  • Extreme weather 0%
  • Security 0%

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

New York (LGA) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 41% of the time, and when it is late the delay averages 86 minutes. It was cancelled 2.3% of the time.

On-time arrivals
59.4%
Less than 15 minutes late
Cancelled
2.3%
Of scheduled flights
Average delay when late
86 min
Flights arriving 15+ minutes late
Flights tracked
174
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 35%
  • Late-arriving aircraft 30%
  • Airline (crew, maintenance, cleaning) 18%
  • Extreme weather 17%
  • Security 0%

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

Denver (DEN) to Seattle (SEA)

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 53 minutes. It was cancelled 0.0% of the time.

On-time arrivals
81.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
53 min
Flights arriving 15+ minutes late
Flights tracked
86
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 51%
  • Air traffic control & airport 27%
  • Late-arriving aircraft 22%
  • Extreme weather 0%
  • Security 0%

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

Los Angeles (LAX) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 18% of the time, and when it is late the delay averages 84 minutes. It was cancelled 0.0% of the time.

On-time arrivals
81.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
84 min
Flights arriving 15+ minutes late
Flights tracked
55
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 41%
  • Late-arriving aircraft 32%
  • Air traffic control & airport 21%
  • Extreme weather 5%
  • Security 0%

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

Baltimore (BWI) to Los Angeles (LAX)

Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 42 minutes. It was cancelled 8.1% of the time.

On-time arrivals
91.2%
Less than 15 minutes late
Cancelled
8.1%
Of scheduled flights
Average delay when late
42 min
Flights arriving 15+ minutes late
Flights tracked
37
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 96%
  • Air traffic control & airport 4%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Fort Lauderdale (FLL) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 38% of the time, and when it is late the delay averages 68 minutes. It was cancelled 0.0% of the time.

On-time arrivals
62.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
68 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Extreme weather 54%
  • Air traffic control & airport 20%
  • Late-arriving aircraft 19%
  • Airline (crew, maintenance, cleaning) 6%
  • Security 0%

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

Orlando (MCO) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 102 minutes. It was cancelled 0.0% of the time.

On-time arrivals
71.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
102 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 35%
  • Airline (crew, maintenance, cleaning) 33%
  • Air traffic control & airport 32%
  • Extreme weather 0%
  • Security 0%

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

St Louis (STL) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 37 minutes. It was cancelled 0.0% of the time.

On-time arrivals
81.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
37 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 42%
  • Extreme weather 30%
  • Air traffic control & airport 20%
  • Late-arriving aircraft 7%
  • Security 0%

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

Knoxville/Maryville (TYS) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 114 minutes. It was cancelled 0.0% of the time.

On-time arrivals
90.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
114 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 66%
  • Late-arriving aircraft 33%
  • Air traffic control & airport 1%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Denver (DEN)

Only 3 flights on record, which is too few for reliable odds.

On-time arrivals
66.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
51 min
Flights arriving 15+ minutes late
Flights tracked
3
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 73%
  • Air traffic control & airport 22%
  • Airline (crew, maintenance, cleaning) 4%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to New York (LGA)

Only 3 flights on record, which is too few for reliable odds.

On-time arrivals
66.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
70 min
Flights arriving 15+ minutes late
Flights tracked
3
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 87%
  • Airline (crew, maintenance, cleaning) 13%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

In the news

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 66.7% 36
October 2025 71.0% 62
November 2025 81.0% 58
December 2025 75.6% 46
January 2026 90.9% 36
February 2026 80.0% 45
March 2026 77.0% 62
April 2026 90.4% 52
May 2026 73.8% 65
June 2026 58.6% 60
July 2026 62.7% 62
August 2026 50.8% 62

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.