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Flight UA450

United Airlines flight UA450

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

    COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY

    Weather

Anchorage (ANC) to Chicago (ORD)

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
89.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
71 min
Flights arriving 15+ minutes late
Flights tracked
113
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 70%
  • Airline (crew, maintenance, cleaning) 20%
  • Air traffic control & airport 10%
  • Extreme weather 0%
  • Security 0%

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

Newark (EWR) to Anchorage (ANC)

Historically, this flight arrives 15+ minutes late 20% of the time, and when it is late the delay averages 61 minutes. It was cancelled 6.7% of the time.

On-time arrivals
79.8%
Less than 15 minutes late
Cancelled
6.7%
Of scheduled flights
Average delay when late
61 min
Flights arriving 15+ minutes late
Flights tracked
104
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 63%
  • Air traffic control & airport 23%
  • Late-arriving aircraft 14%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Anchorage (ANC)

Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 40 minutes. It was cancelled 1.2% of the time.

On-time arrivals
72.6%
Less than 15 minutes late
Cancelled
1.2%
Of scheduled flights
Average delay when late
40 min
Flights arriving 15+ minutes late
Flights tracked
86
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 60%
  • Airline (crew, maintenance, cleaning) 20%
  • Extreme weather 10%
  • Late-arriving aircraft 10%
  • Security 0%

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

Reno (RNO) to San Francisco (SFO)

Historically, this flight arrives 15+ minutes late 44% of the time, and when it is late the delay averages 69 minutes. It was cancelled 0.0% of the time.

On-time arrivals
56.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
69 min
Flights arriving 15+ minutes late
Flights tracked
73
Scheduled flights in the period

What caused the delays

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

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

San Francisco (SFO) to Dulles (IAD)

Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 49 minutes. It was cancelled 1.9% of the time.

On-time arrivals
88.5%
Less than 15 minutes late
Cancelled
1.9%
Of scheduled flights
Average delay when late
49 min
Flights arriving 15+ minutes late
Flights tracked
53
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 62%
  • Air traffic control & airport 21%
  • Airline (crew, maintenance, cleaning) 17%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Ontario (ONT)

Historically, this flight arrives 15+ minutes late 6% of the time, and when it is late the delay averages 125 minutes. It was cancelled 0.0% of the time.

On-time arrivals
93.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
125 min
Flights arriving 15+ minutes late
Flights tracked
32
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 67%
  • Late-arriving aircraft 33%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Jackson (JAC) to Newark (EWR)

Historically, this flight arrives 15+ minutes late 38% of the time, and when it is late the delay averages 107 minutes. It was cancelled 0.0% of the time.

On-time arrivals
62.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
107 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 77%
  • Late-arriving aircraft 21%
  • Airline (crew, maintenance, cleaning) 1%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Baltimore (BWI)

Historically, this flight arrives 15+ minutes late 40% of the time, and when it is late the delay averages 51 minutes. It was cancelled 0.0% of the time.

On-time arrivals
60.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
51 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 50%
  • Air traffic control & airport 44%
  • Late-arriving aircraft 6%
  • Extreme weather 0%
  • Security 0%

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

San Francisco (SFO) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 97 minutes. It was cancelled 0.0% of the time.

On-time arrivals
76.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
97 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 73%
  • Late-arriving aircraft 23%
  • Airline (crew, maintenance, cleaning) 4%
  • Extreme weather 0%
  • Security 0%

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

Myrtle Beach (MYR) to Newark (EWR)

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 84.0% 25
October 2025 86.7% 31
November 2025 72.4% 30
December 2025 63.0% 46
January 2026 91.1% 57
February 2026 51.8% 56
March 2026 62.9% 35
April 2026 93.3% 30
May 2026 73.2% 42
June 2026 84.7% 59
July 2026 84.6% 57
August 2026 85.5% 60

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.