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Flight UA1488

United Airlines flight UA1488

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Looking for UA1488 in the air…

Chicago (ORD) to Cleveland (CLE)

Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 56 minutes. It was cancelled 2.2% of the time.

On-time arrivals
88.6%
Less than 15 minutes late
Cancelled
2.2%
Of scheduled flights
Average delay when late
56 min
Flights arriving 15+ minutes late
Flights tracked
180
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 34%
  • Airline (crew, maintenance, cleaning) 34%
  • Air traffic control & airport 24%
  • Extreme weather 8%
  • Security 0%

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

Cleveland (CLE) to Orlando (MCO)

Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 65 minutes. It was cancelled 0.0% of the time.

On-time arrivals
90.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
65 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 69%
  • Late-arriving aircraft 25%
  • Airline (crew, maintenance, cleaning) 5%
  • Extreme weather 1%
  • Security 0%

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

Sacramento (SMF) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 4% of the time, and when it is late the delay averages 87 minutes. It was cancelled 0.0% of the time.

On-time arrivals
96.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
87 min
Flights arriving 15+ minutes late
Flights tracked
52
Scheduled flights in the period

What caused the delays

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

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

Kansas City (MCI) to Houston (IAH)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 136 minutes. It was cancelled 2.7% of the time.

On-time arrivals
86.1%
Less than 15 minutes late
Cancelled
2.7%
Of scheduled flights
Average delay when late
136 min
Flights arriving 15+ minutes late
Flights tracked
37
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 86%
  • Air traffic control & airport 14%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Houston (IAH) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 5.6% of the time.

On-time arrivals
100.0%
Less than 15 minutes late
Cancelled
5.6%
Of scheduled flights
Average delay when late
—
Flights arriving 15+ minutes late
Flights tracked
36
Scheduled flights in the period

Denver (DEN) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 91 minutes. It was cancelled 6.2% of the time.

On-time arrivals
76.7%
Less than 15 minutes late
Cancelled
6.2%
Of scheduled flights
Average delay when late
91 min
Flights arriving 15+ minutes late
Flights tracked
32
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 67%
  • Extreme weather 27%
  • Late-arriving aircraft 6%
  • Airline (crew, maintenance, cleaning) 0%
  • Security 0%

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

Denver (DEN) to Boston (BOS)

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 82 minutes. It was cancelled 0.0% of the time.

On-time arrivals
80.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
82 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 62%
  • Late-arriving aircraft 35%
  • Extreme weather 3%
  • Airline (crew, maintenance, cleaning) 0%
  • Security 0%

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

Los Angeles (LAX) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 49 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
49 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 92%
  • Air traffic control & airport 8%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Newark (EWR) to Seattle (SEA)

Only 16 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
40 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 72%
  • Airline (crew, maintenance, cleaning) 23%
  • Late-arriving aircraft 5%
  • Extreme weather 0%
  • Security 0%

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

Dallas-Fort Worth (DFW) to Newark (EWR)

Only 12 flights on record, which is too few for reliable odds.

On-time arrivals
75.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
30 min
Flights arriving 15+ minutes late
Flights tracked
12
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 68%
  • Airline (crew, maintenance, cleaning) 29%
  • Late-arriving aircraft 3%
  • Extreme weather 0%
  • Security 0%

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

Sarasota/Bradenton (SRQ) to Chicago (ORD)

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

On-time arrivals
0.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
64 min
Flights arriving 15+ minutes late
Flights tracked
4
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 55%
  • Late-arriving aircraft 39%
  • Airline (crew, maintenance, cleaning) 5%
  • Extreme weather 0%
  • Security 0%

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

Greenville/Greer/Spartanburg (GSP) to Denver (DEN)

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 87.9% 33
October 2025 92.9% 56
November 2025 86.2% 30
December 2025 66.7% 42
January 2026 100.0% 30
February 2026 84.1% 44
March 2026 78.9% 38
April 2026 78.6% 30
May 2026 90.0% 41
June 2026 98.0% 52
July 2026 84.8% 49
August 2026 86.1% 37

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.