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Flight UA729

United Airlines flight UA729

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  • Advisory Airport Closure SNA

    Airport Closure at John Wayne Orange County International Airport (SNA): Reopens Nov 08 at 14:15 UTC.

    Airport status

  • Advisory Coastal Flood Statement FLL

    COASTAL FLOOD STATEMENT NOW IN EFFECT THROUGH THURSDAY EVENING

    Weather

  • Advisory Coastal Flood Advisory CLD, SAN, SNA

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

    Weather

  • 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 17% of the time, and when it is late the delay averages 60 minutes. It was cancelled 0.0% of the time.

On-time arrivals
83.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
60 min
Flights arriving 15+ minutes late
Flights tracked
103
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 67%
  • Airline (crew, maintenance, cleaning) 25%
  • Air traffic control & airport 7%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Philadelphia (PHL)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 98 minutes. It was cancelled 0.0% of the time.

On-time arrivals
86.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
98 min
Flights arriving 15+ minutes late
Flights tracked
72
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 67%
  • Air traffic control & airport 17%
  • Late-arriving aircraft 17%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Dallas-Fort Worth (DFW)

Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 39 minutes. It was cancelled 0.0% of the time.

On-time arrivals
86.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
39 min
Flights arriving 15+ minutes late
Flights tracked
52
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 59%
  • Air traffic control & airport 33%
  • Airline (crew, maintenance, cleaning) 8%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Indianapolis (IND)

Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 74 minutes. It was cancelled 0.0% of the time.

On-time arrivals
73.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
74 min
Flights arriving 15+ minutes late
Flights tracked
38
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 64%
  • Airline (crew, maintenance, cleaning) 30%
  • Air traffic control & airport 6%
  • Extreme weather 0%
  • Security 0%

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

San Francisco (SFO) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 30% of the time, and when it is late the delay averages 80 minutes. It was cancelled 0.0% of the time.

On-time arrivals
70.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
80 min
Flights arriving 15+ minutes late
Flights tracked
37
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 51%
  • Late-arriving aircraft 27%
  • Airline (crew, maintenance, cleaning) 22%
  • Extreme weather 0%
  • Security 0%

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

Fort Lauderdale (FLL) to San Francisco (SFO)

Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 39 minutes. It was cancelled 0.0% of the time.

On-time arrivals
91.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
39 min
Flights arriving 15+ minutes late
Flights tracked
36
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 81%
  • Air traffic control & airport 19%
  • Late-arriving aircraft 0%
  • 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 6% of the time, and when it is late the delay averages 96 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
96 min
Flights arriving 15+ minutes late
Flights tracked
32
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 76%
  • Airline (crew, maintenance, cleaning) 20%
  • Air traffic control & airport 4%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Jacksonville (JAX)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 34 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
34 min
Flights arriving 15+ minutes late
Flights tracked
28
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 88%
  • Airline (crew, maintenance, cleaning) 12%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Cleveland (CLE) to Chicago (ORD)

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
24
Scheduled flights in the period

Houston (IAH) to Chicago (ORD)

Only 19 flights on record, which is too few for reliable odds.

On-time arrivals
73.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
40 min
Flights arriving 15+ minutes late
Flights tracked
19
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 50%
  • Late-arriving aircraft 34%
  • Airline (crew, maintenance, cleaning) 16%
  • Extreme weather 0%
  • Security 0%

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

Santa Ana (SNA) to Houston (IAH)

Only 19 flights on record, which is too few for reliable odds.

On-time arrivals
94.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
42 min
Flights arriving 15+ minutes late
Flights tracked
19
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 100%
  • Airline (crew, maintenance, cleaning) 0%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Newark (EWR) to Savannah (SAV)

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

On-time arrivals
68.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
58 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 81%
  • Air traffic control & airport 10%
  • Airline (crew, maintenance, cleaning) 9%
  • Extreme weather 0%
  • Security 0%

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

Raleigh/Durham (RDU) to San Francisco (SFO)

Only 7 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
7
Scheduled flights in the period

Chicago (ORD) to Washington (DCA)

Only 4 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
20 min
Flights arriving 15+ minutes late
Flights tracked
4
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 100%
  • Airline (crew, maintenance, cleaning) 0%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Los Angeles (LAX)

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

On-time arrivals
66.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
87 min
Flights arriving 15+ minutes late
Flights tracked
3
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 100%
  • Airline (crew, maintenance, cleaning) 0%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Cedar Rapids (CID)

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 96.3% 54
October 2025 75.9% 29
November 2025 87.0% 23
December 2025 80.0% 45
January 2026 80.6% 62
February 2026 84.2% 38
March 2026 74.2% 31
April 2026 93.3% 30
May 2026 88.1% 42
June 2026 90.9% 55
July 2026 74.2% 31
August 2026 80.8% 52

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.