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Flight UA1946

United Airlines flight UA1946

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

    COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY

    Weather

Los Angeles (LAX) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 79 minutes. It was cancelled 1.4% of the time.

On-time arrivals
84.5%
Less than 15 minutes late
Cancelled
1.4%
Of scheduled flights
Average delay when late
79 min
Flights arriving 15+ minutes late
Flights tracked
364
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 57%
  • Late-arriving aircraft 24%
  • Airline (crew, maintenance, cleaning) 19%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Pittsburgh (PIT)

Historically, this flight arrives 15+ minutes late 41% of the time, and when it is late the delay averages 90 minutes. It was cancelled 1.7% of the time.

On-time arrivals
59.4%
Less than 15 minutes late
Cancelled
1.7%
Of scheduled flights
Average delay when late
90 min
Flights arriving 15+ minutes late
Flights tracked
179
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 55%
  • Airline (crew, maintenance, cleaning) 21%
  • Air traffic control & airport 15%
  • Extreme weather 9%
  • Security 0%

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

Chicago (ORD) to Fort Myers (RSW)

Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 67 minutes. It was cancelled 2.8% of the time.

On-time arrivals
72.5%
Less than 15 minutes late
Cancelled
2.8%
Of scheduled flights
Average delay when late
67 min
Flights arriving 15+ minutes late
Flights tracked
71
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 64%
  • Airline (crew, maintenance, cleaning) 22%
  • Air traffic control & airport 13%
  • Extreme weather 1%
  • Security 0%

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

Chicago (ORD) to Buffalo (BUF)

Historically, this flight arrives 15+ minutes late 36% of the time, and when it is late the delay averages 73 minutes. It was cancelled 2.7% of the time.

On-time arrivals
63.9%
Less than 15 minutes late
Cancelled
2.7%
Of scheduled flights
Average delay when late
73 min
Flights arriving 15+ minutes late
Flights tracked
37
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 48%
  • Airline (crew, maintenance, cleaning) 34%
  • Air traffic control & airport 14%
  • Extreme weather 3%
  • Security 0%

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

Chicago (ORD) to Dayton (DAY)

Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 97 minutes. It was cancelled 0.0% of the time.

On-time arrivals
87.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
97 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 45%
  • Late-arriving aircraft 28%
  • Airline (crew, maintenance, cleaning) 27%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Dulles (IAD)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 78 minutes. It was cancelled 0.0% of the time.

On-time arrivals
85.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
78 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 62%
  • Air traffic control & airport 33%
  • Extreme weather 5%
  • Late-arriving aircraft 0%
  • 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 52% of the time, and when it is late the delay averages 79 minutes. It was cancelled 0.0% of the time.

On-time arrivals
47.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
79 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 70%
  • Late-arriving aircraft 18%
  • Airline (crew, maintenance, cleaning) 12%
  • Extreme weather 0%
  • Security 0%

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

San Francisco (SFO) to Los Angeles (LAX)

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

On-time arrivals
93.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
64 min
Flights arriving 15+ minutes late
Flights tracked
16
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).

Fort Myers (RSW) to Denver (DEN)

Only 2 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
62 min
Flights arriving 15+ minutes late
Flights tracked
2
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 94%
  • Airline (crew, maintenance, cleaning) 6%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

In the news

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Headlines found by Google News; stories open on the publisher's site.

On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 73.7% 57
October 2025 88.5% 62
November 2025 74.1% 60
December 2025 80.5% 78
January 2026 67.8% 62
February 2026 91.1% 56
March 2026 70.5% 62
April 2026 63.8% 60
May 2026 85.2% 62
June 2026 76.3% 60
July 2026 72.4% 61
August 2026 59.0% 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.