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Flight UA356

United Airlines flight UA356

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Looking for UA356 in the air…

Chicago (ORD) to Atlanta (ATL)

Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 68 minutes. It was cancelled 2.0% of the time.

On-time arrivals
73.1%
Less than 15 minutes late
Cancelled
2.0%
Of scheduled flights
Average delay when late
68 min
Flights arriving 15+ minutes late
Flights tracked
358
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 42%
  • Air traffic control & airport 29%
  • Airline (crew, maintenance, cleaning) 24%
  • Extreme weather 5%
  • Security 0%

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

Phoenix (PHX) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 98 minutes. It was cancelled 1.0% of the time.

On-time arrivals
89.2%
Less than 15 minutes late
Cancelled
1.0%
Of scheduled flights
Average delay when late
98 min
Flights arriving 15+ minutes late
Flights tracked
198
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 70%
  • Airline (crew, maintenance, cleaning) 20%
  • Late-arriving aircraft 7%
  • Extreme weather 3%
  • Security 0%

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

San Jose (SJC) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 61 minutes. It was cancelled 1.6% of the time.

On-time arrivals
90.0%
Less than 15 minutes late
Cancelled
1.6%
Of scheduled flights
Average delay when late
61 min
Flights arriving 15+ minutes late
Flights tracked
61
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 98%
  • Airline (crew, maintenance, cleaning) 2%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Atlanta (ATL) to Houston (IAH)

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 105 minutes. It was cancelled 0.0% of the time.

On-time arrivals
80.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
105 min
Flights arriving 15+ minutes late
Flights tracked
26
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 52%
  • Air traffic control & airport 43%
  • Airline (crew, maintenance, cleaning) 5%
  • Extreme weather 0%
  • Security 0%

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

Los Angeles (LAX) to Las Vegas (LAS)

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 88.7% 54
October 2025 73.2% 41
November 2025 84.2% 80
December 2025 69.7% 33
January 2026 80.6% 31
February 2026 83.7% 43
March 2026 69.1% 57
April 2026 79.7% 60
May 2026 82.3% 62
June 2026 89.8% 60
July 2026 72.9% 62
August 2026 80.3% 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.