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Flight UA1843

United Airlines flight UA1843

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  • Advisory Coastal Flood Advisory OAK, SFO, SQL, STS

    COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY

    Weather

Denver (DEN) to Columbus (CMH)

Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 86 minutes. It was cancelled 0.0% of the time.

On-time arrivals
71.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
86 min
Flights arriving 15+ minutes late
Flights tracked
176
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 61%
  • Airline (crew, maintenance, cleaning) 22%
  • Air traffic control & airport 16%
  • Extreme weather 1%
  • Security 0%

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

Palm Springs (PSP) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 80 minutes. It was cancelled 0.6% of the time.

On-time arrivals
72.8%
Less than 15 minutes late
Cancelled
0.6%
Of scheduled flights
Average delay when late
80 min
Flights arriving 15+ minutes late
Flights tracked
155
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 59%
  • Late-arriving aircraft 26%
  • Airline (crew, maintenance, cleaning) 15%
  • Extreme weather 1%
  • 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 14% of the time, and when it is late the delay averages 38 minutes. It was cancelled 0.0% of the time.

On-time arrivals
86.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
38 min
Flights arriving 15+ minutes late
Flights tracked
100
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 57%
  • Air traffic control & airport 31%
  • Airline (crew, maintenance, cleaning) 12%
  • Extreme weather 0%
  • Security 0%

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

Miami (MIA) to Houston (IAH)

Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 71 minutes. It was cancelled 0.0% of the time.

On-time arrivals
88.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
71 min
Flights arriving 15+ minutes late
Flights tracked
37
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 83%
  • Air traffic control & airport 17%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Los Angeles (LAX) to Dulles (IAD)

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

On-time arrivals
81.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
80 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 91%
  • Air traffic control & airport 9%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

San Francisco (SFO) to Los Angeles (LAX)

Only 6 flights on record, which is too few for reliable odds.

On-time arrivals
83.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
71 min
Flights arriving 15+ minutes late
Flights tracked
6
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).

Phoenix (PHX) to Chicago (ORD)

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

On-time arrivals
33.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
108 min
Flights arriving 15+ minutes late
Flights tracked
3
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 84%
  • Airline (crew, maintenance, cleaning) 16%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Miami (MIA)

Only 2 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
2
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 90.0% 30
October 2025 87.1% 31
November 2025 90.3% 31
December 2025 77.4% 32
January 2026 87.0% 23
February 2026 79.2% 25
March 2026 84.2% 19
April 2026 83.3% 60
May 2026 72.1% 62
June 2026 71.7% 60
July 2026 72.9% 60
August 2026 55.9% 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.