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Flight UA1131

United Airlines flight UA1131

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Looking for UA1131 in the air…

Houston (IAH) to Midland (MAF)

Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 50 minutes. It was cancelled 1.0% of the time.

On-time arrivals
83.5%
Less than 15 minutes late
Cancelled
1.0%
Of scheduled flights
Average delay when late
50 min
Flights arriving 15+ minutes late
Flights tracked
104
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 39%
  • Airline (crew, maintenance, cleaning) 33%
  • Air traffic control & airport 27%
  • Extreme weather 2%
  • Security 0%

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

Denver (DEN) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 34% of the time, and when it is late the delay averages 106 minutes. It was cancelled 1.3% of the time.

On-time arrivals
65.8%
Less than 15 minutes late
Cancelled
1.3%
Of scheduled flights
Average delay when late
106 min
Flights arriving 15+ minutes late
Flights tracked
77
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 65%
  • Late-arriving aircraft 26%
  • Airline (crew, maintenance, cleaning) 8%
  • Extreme weather 1%
  • Security 0%

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

Chicago (ORD) to Minneapolis (MSP)

Historically, this flight arrives 15+ minutes late 45% of the time, and when it is late the delay averages 78 minutes. It was cancelled 4.5% of the time.

On-time arrivals
54.8%
Less than 15 minutes late
Cancelled
4.5%
Of scheduled flights
Average delay when late
78 min
Flights arriving 15+ minutes late
Flights tracked
44
Scheduled flights in the period

What caused the delays

  • Extreme weather 40%
  • Airline (crew, maintenance, cleaning) 28%
  • Late-arriving aircraft 26%
  • Air traffic control & airport 7%
  • Security 0%

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

Dulles (IAD) to Houston (IAH)

Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 28 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
28 min
Flights arriving 15+ minutes late
Flights tracked
32
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).

Boston (BOS) to Newark (EWR)

Historically, this flight arrives 15+ minutes late 46% of the time, and when it is late the delay averages 52 minutes. It was cancelled 0.0% of the time.

On-time arrivals
54.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
52 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 50%
  • Airline (crew, maintenance, cleaning) 26%
  • Late-arriving aircraft 24%
  • Extreme weather 0%
  • Security 0%

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

Houston (IAH) to Las Vegas (LAS)

Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 34 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
34 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 55%
  • Late-arriving aircraft 26%
  • Airline (crew, maintenance, cleaning) 16%
  • Extreme weather 3%
  • Security 0%

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

Salt Lake City (SLC) to Houston (IAH)

Only 16 flights on record, which is too few for reliable odds.

On-time arrivals
87.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
71 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 71%
  • Airline (crew, maintenance, cleaning) 29%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Minneapolis (MSP) to Newark (EWR)

Only 14 flights on record, which is too few for reliable odds.

On-time arrivals
46.2%
Less than 15 minutes late
Cancelled
7.1%
Of scheduled flights
Average delay when late
125 min
Flights arriving 15+ minutes late
Flights tracked
14
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 59%
  • Late-arriving aircraft 41%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Syracuse (SYR) to Chicago (ORD)

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

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

Denver (DEN) to Fort Myers (RSW)

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

Houston (IAH) to Chicago (ORD)

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

Houston (IAH) to Fort Myers (RSW)

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

Los Angeles (LAX) to Reno (RNO)

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

Fort Myers (RSW) to Chicago (ORD)

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

In the news

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 73.3% 30
October 2025 84.6% 26
December 2025 76.2% 43
January 2026 86.2% 30
February 2026 78.6% 28
March 2026 64.5% 31
April 2026 86.7% 30
May 2026 80.6% 31
June 2026 60.0% 30
July 2026 55.2% 30
August 2026 55.2% 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.