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Flight UA1491

United Airlines flight UA1491

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Looking for UA1491 in the air…

Kansas City (MCI) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 58 minutes. It was cancelled 1.4% of the time.

On-time arrivals
83.8%
Less than 15 minutes late
Cancelled
1.4%
Of scheduled flights
Average delay when late
58 min
Flights arriving 15+ minutes late
Flights tracked
276
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 80%
  • Airline (crew, maintenance, cleaning) 19%
  • Extreme weather 1%
  • Late-arriving aircraft 0%
  • Security 0%

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

Chicago (ORD) to Norfolk (ORF)

Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 82 minutes. It was cancelled 1.1% of the time.

On-time arrivals
73.9%
Less than 15 minutes late
Cancelled
1.1%
Of scheduled flights
Average delay when late
82 min
Flights arriving 15+ minutes late
Flights tracked
89
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 36%
  • Airline (crew, maintenance, cleaning) 34%
  • Extreme weather 23%
  • Air traffic control & airport 7%
  • Security 0%

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

Newark (EWR) to Houston (IAH)

Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 66 minutes. It was cancelled 0.0% of the time.

On-time arrivals
90.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
66 min
Flights arriving 15+ minutes late
Flights tracked
32
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 54%
  • Air traffic control & airport 30%
  • Airline (crew, maintenance, cleaning) 17%
  • 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 15% of the time, and when it is late the delay averages 52 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
52 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 74%
  • Air traffic control & airport 22%
  • Airline (crew, maintenance, cleaning) 3%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Tampa (TPA)

Only 17 flights on record, which is too few for reliable odds.

On-time arrivals
88.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
97 min
Flights arriving 15+ minutes late
Flights tracked
17
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 78%
  • Air traffic control & airport 13%
  • Airline (crew, maintenance, cleaning) 9%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Panama City Beach (ECP)

Only 17 flights on record, which is too few for reliable odds.

On-time arrivals
76.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
104 min
Flights arriving 15+ minutes late
Flights tracked
17
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 39%
  • Air traffic control & airport 34%
  • Extreme weather 18%
  • Late-arriving aircraft 9%
  • Security 0%

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

Boston (BOS) to Newark (EWR)

Only 15 flights on record, which is too few for reliable odds.

On-time arrivals
78.6%
Less than 15 minutes late
Cancelled
6.7%
Of scheduled flights
Average delay when late
101 min
Flights arriving 15+ minutes late
Flights tracked
15
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 89%
  • Late-arriving aircraft 11%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Madison (MSN) to Chicago (ORD)

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

On-time arrivals
50.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
37 min
Flights arriving 15+ minutes late
Flights tracked
2
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 100%
  • Late-arriving aircraft 0%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Dallas-Fort Worth (DFW)

Only 1 flight 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
1
Scheduled flights in the period

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 97.3% 37
October 2025 82.1% 56
November 2025 63.3% 30
December 2025 72.7% 44
January 2026 77.4% 31
February 2026 89.1% 57
March 2026 71.4% 45
April 2026 90.3% 31
May 2026 80.9% 47
June 2026 93.1% 30
July 2026 93.1% 31
August 2026 74.2% 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.