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Flight UA664

United Airlines flight UA664

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Looking for UA664 in the air…

Las Vegas (LAS) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 99 minutes. It was cancelled 0.3% of the time.

On-time arrivals
86.2%
Less than 15 minutes late
Cancelled
0.3%
Of scheduled flights
Average delay when late
99 min
Flights arriving 15+ minutes late
Flights tracked
352
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 46%
  • Air traffic control & airport 45%
  • Late-arriving aircraft 9%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Kansas City (MCI)

Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 70 minutes. It was cancelled 1.5% of the time.

On-time arrivals
61.2%
Less than 15 minutes late
Cancelled
1.5%
Of scheduled flights
Average delay when late
70 min
Flights arriving 15+ minutes late
Flights tracked
136
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 56%
  • Airline (crew, maintenance, cleaning) 26%
  • Air traffic control & airport 15%
  • Extreme weather 3%
  • Security 0%

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

Chicago (ORD) to Sarasota/Bradenton (SRQ)

Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 58 minutes. It was cancelled 1.8% of the time.

On-time arrivals
69.1%
Less than 15 minutes late
Cancelled
1.8%
Of scheduled flights
Average delay when late
58 min
Flights arriving 15+ minutes late
Flights tracked
56
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 37%
  • Late-arriving aircraft 36%
  • Extreme weather 17%
  • Airline (crew, maintenance, cleaning) 11%
  • Security 0%

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

Chicago (ORD) to New York (LGA)

Historically, this flight arrives 15+ minutes late 48% of the time, and when it is late the delay averages 131 minutes. It was cancelled 2.9% of the time.

On-time arrivals
51.5%
Less than 15 minutes late
Cancelled
2.9%
Of scheduled flights
Average delay when late
131 min
Flights arriving 15+ minutes late
Flights tracked
35
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 61%
  • Air traffic control & airport 32%
  • Airline (crew, maintenance, cleaning) 8%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 32% of the time, and when it is late the delay averages 77 minutes. It was cancelled 0.0% of the time.

On-time arrivals
67.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
77 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 53%
  • Airline (crew, maintenance, cleaning) 34%
  • Air traffic control & airport 13%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Boston (BOS)

Historically, this flight arrives 15+ minutes late 88% of the time, and when it is late the delay averages 96 minutes. It was cancelled 0.0% of the time.

On-time arrivals
12.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
96 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 73%
  • Late-arriving aircraft 19%
  • Airline (crew, maintenance, cleaning) 6%
  • Extreme weather 3%
  • Security 0%

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

ORD → PBI

Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 42 minutes. It was cancelled 0.0% of the time.

On-time arrivals
75.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
42 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 55%
  • Late-arriving aircraft 27%
  • Airline (crew, maintenance, cleaning) 18%
  • Extreme weather 0%
  • Security 0%

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

Cincinnati / Covington (CVG) to Chicago (ORD)

Only 3 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
3
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 61.7% 60
October 2025 77.4% 62
November 2025 74.1% 54
December 2025 81.2% 48
January 2026 83.9% 31
February 2026 88.6% 45
March 2026 76.3% 61
April 2026 86.0% 51
May 2026 73.8% 62
June 2026 65.5% 60
July 2026 72.9% 62
August 2026 58.1% 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.