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Flight UA1117

United Airlines flight UA1117

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  • 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

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  • 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

Chicago (ORD) to Boston (BOS)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 74 minutes. It was cancelled 0.0% of the time.

On-time arrivals
86.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
74 min
Flights arriving 15+ minutes late
Flights tracked
146
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 41%
  • Air traffic control & airport 25%
  • Airline (crew, maintenance, cleaning) 20%
  • Extreme weather 15%
  • Security 0%

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

Oklahoma City (OKC) to Houston (IAH)

Historically, this flight arrives 15+ minutes late 36% of the time, and when it is late the delay averages 87 minutes. It was cancelled 0.0% of the time.

On-time arrivals
63.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
87 min
Flights arriving 15+ minutes late
Flights tracked
47
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 57%
  • Late-arriving aircraft 31%
  • Airline (crew, maintenance, cleaning) 12%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Hayden (HDN)

Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 43 minutes. It was cancelled 0.0% of the time.

On-time arrivals
73.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
43 min
Flights arriving 15+ minutes late
Flights tracked
37
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 47%
  • Airline (crew, maintenance, cleaning) 47%
  • Extreme weather 4%
  • Late-arriving aircraft 2%
  • Security 0%

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

Indianapolis (IND) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 54 minutes. It was cancelled 0.0% of the time.

On-time arrivals
77.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
54 min
Flights arriving 15+ minutes late
Flights tracked
35
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 58%
  • Air traffic control & airport 42%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Hartford (BDL)

Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 48 minutes. It was cancelled 0.0% of the time.

On-time arrivals
96.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
48 min
Flights arriving 15+ minutes late
Flights tracked
31
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).

Denver (DEN) to Sioux Falls (FSD)

Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 60 minutes. It was cancelled 0.0% of the time.

On-time arrivals
73.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
60 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 50%
  • Airline (crew, maintenance, cleaning) 26%
  • Air traffic control & airport 24%
  • Extreme weather 0%
  • Security 0%

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

Los Angeles (LAX) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 35% of the time, and when it is late the delay averages 72 minutes. It was cancelled 4.2% of the time.

On-time arrivals
65.2%
Less than 15 minutes late
Cancelled
4.2%
Of scheduled flights
Average delay when late
72 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 56%
  • Air traffic control & airport 24%
  • Late-arriving aircraft 20%
  • Extreme weather 0%
  • Security 0%

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

El Paso (ELP) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 110 minutes. It was cancelled 0.0% of the time.

On-time arrivals
81.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
110 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 63%
  • Late-arriving aircraft 37%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Houston (IAH) to Dallas-Fort Worth (DFW)

Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 52 minutes. It was cancelled 4.8% of the time.

On-time arrivals
90.0%
Less than 15 minutes late
Cancelled
4.8%
Of scheduled flights
Average delay when late
52 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 83%
  • Air traffic control & airport 17%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Madison (MSN) to Newark (EWR)

Only 17 flights on record, which is too few for reliable odds.

On-time arrivals
82.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
97 min
Flights arriving 15+ minutes late
Flights tracked
17
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 62%
  • Air traffic control & airport 38%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

San Diego (SAN) to Los Angeles (LAX)

Only 4 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
4
Scheduled flights in the period

Chicago (ORD) to Buffalo (BUF)

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

Detroit (DTW) to Houston (IAH)

Only 1 flight 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
30 min
Flights arriving 15+ minutes late
Flights tracked
1
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 63%
  • Airline (crew, maintenance, cleaning) 37%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Kansas City (MCI) to Denver (DEN)

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

San Francisco (SFO) to Tucson (TUS)

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 79.3% 30
October 2025 90.3% 31
November 2025 62.1% 29
December 2025 72.4% 29
January 2026 76.8% 56
February 2026 76.3% 38
March 2026 68.0% 51
April 2026 90.0% 30
May 2026 89.3% 29
June 2026 96.3% 27
July 2026 90.3% 31
August 2026 87.1% 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

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