Skip to content
FriendlySkies Review
Menu

Flight UA1156

United Airlines flight UA1156

Read United Airlines reviews →

Looking for UA1156 in the air…

  • Watch Ground Delay Program SAN

    Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes

    Reason: airport volume

    Airport status

    Read the story →
  • Advisory Coastal Flood Advisory CLD, SAN, SNA

    COASTAL FLOOD ADVISORY IN EFFECT FROM 4 AM FRIDAY TO NOON PST TUESDAY

    Weather

New York (LGA) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 50% of the time, and when it is late the delay averages 124 minutes. It was cancelled 6.7% of the time.

On-time arrivals
49.6%
Less than 15 minutes late
Cancelled
6.7%
Of scheduled flights
Average delay when late
124 min
Flights arriving 15+ minutes late
Flights tracked
135
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 39%
  • Air traffic control & airport 34%
  • Extreme weather 17%
  • Airline (crew, maintenance, cleaning) 9%
  • Security 0%

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

St Louis (STL) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.

On-time arrivals
69.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
47 min
Flights arriving 15+ minutes late
Flights tracked
55
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 82%
  • Airline (crew, maintenance, cleaning) 10%
  • Late-arriving aircraft 8%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Palm Springs (PSP)

Historically, this flight arrives 15+ minutes late 34% of the time, and when it is late the delay averages 72 minutes. It was cancelled 2.2% of the time.

On-time arrivals
65.9%
Less than 15 minutes late
Cancelled
2.2%
Of scheduled flights
Average delay when late
72 min
Flights arriving 15+ minutes late
Flights tracked
45
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 60%
  • Airline (crew, maintenance, cleaning) 19%
  • Air traffic control & airport 17%
  • Extreme weather 4%
  • 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 32% of the time, and when it is late the delay averages 44 minutes. It was cancelled 0.0% of the time.

On-time arrivals
68.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
44 min
Flights arriving 15+ minutes late
Flights tracked
38
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 50%
  • Air traffic control & airport 41%
  • Airline (crew, maintenance, cleaning) 9%
  • Extreme weather 0%
  • Security 0%

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

IAD → PBI

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 107 minutes. It was cancelled 2.7% of the time.

On-time arrivals
80.6%
Less than 15 minutes late
Cancelled
2.7%
Of scheduled flights
Average delay when late
107 min
Flights arriving 15+ minutes late
Flights tracked
37
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 47%
  • Airline (crew, maintenance, cleaning) 31%
  • Air traffic control & airport 14%
  • Extreme weather 8%
  • Security 0%

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

Las Vegas (LAS) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 53 minutes. It was cancelled 2.8% of the time.

On-time arrivals
88.6%
Less than 15 minutes late
Cancelled
2.8%
Of scheduled flights
Average delay when late
53 min
Flights arriving 15+ minutes late
Flights tracked
36
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 73%
  • Air traffic control & airport 27%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Fresno (FAT)

Historically, this flight arrives 15+ minutes late 50% of the time, and when it is late the delay averages 41 minutes. It was cancelled 0.0% of the time.

On-time arrivals
50.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
41 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 52%
  • Airline (crew, maintenance, cleaning) 45%
  • Air traffic control & airport 2%
  • Extreme weather 0%
  • Security 0%

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

Phoenix (PHX) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 83 minutes. It was cancelled 0.0% of the time.

On-time arrivals
70.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
83 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Extreme weather 49%
  • Air traffic control & airport 29%
  • Late-arriving aircraft 19%
  • Airline (crew, maintenance, cleaning) 4%
  • Security 0%

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

Houston (IAH) to New York (LGA)

Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 0.0% of the time.

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
21
Scheduled flights in the period

Chicago (ORD) to San Diego (SAN)

Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 61 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
61 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 39%
  • Extreme weather 30%
  • Air traffic control & airport 27%
  • Airline (crew, maintenance, cleaning) 4%
  • Security 0%

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

Traverse City (TVC) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 43% of the time, and when it is late the delay averages 151 minutes. It was cancelled 0.0% of the time.

On-time arrivals
57.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
151 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 58%
  • Late-arriving aircraft 38%
  • Airline (crew, maintenance, cleaning) 4%
  • Extreme weather 0%
  • Security 0%

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

Norfolk (ORF) to Chicago (ORD)

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

What caused the delays

  • Air traffic control & airport 68%
  • Airline (crew, maintenance, cleaning) 25%
  • Late-arriving aircraft 7%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Chicago (ORD)

Only 6 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
62 min
Flights arriving 15+ minutes late
Flights tracked
6
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 85%
  • Airline (crew, maintenance, cleaning) 15%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Cincinnati / Covington (CVG)

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

What caused the delays

  • Extreme weather 59%
  • Late-arriving aircraft 41%
  • Airline (crew, maintenance, cleaning) 0%
  • Air traffic control & airport 0%
  • Security 0%

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

In the news

More headlines →

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 63.0% 54
October 2025 64.9% 37
November 2025 89.3% 29
December 2025 74.2% 31
January 2026 86.7% 31
February 2026 67.9% 28
March 2026 55.8% 52
April 2026 62.3% 56
May 2026 80.3% 71
June 2026 44.8% 30
July 2026 46.2% 31
August 2026 48.3% 31

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

More headlines →

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