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Flight UA2343

United Airlines flight UA2343

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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

San Diego (SAN) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 94 minutes. It was cancelled 0.8% of the time.

On-time arrivals
86.5%
Less than 15 minutes late
Cancelled
0.8%
Of scheduled flights
Average delay when late
94 min
Flights arriving 15+ minutes late
Flights tracked
242
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 39%
  • Airline (crew, maintenance, cleaning) 36%
  • Air traffic control & airport 25%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Syracuse (SYR)

Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 92 minutes. It was cancelled 1.0% of the time.

On-time arrivals
76.0%
Less than 15 minutes late
Cancelled
1.0%
Of scheduled flights
Average delay when late
92 min
Flights arriving 15+ minutes late
Flights tracked
102
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 30%
  • Airline (crew, maintenance, cleaning) 27%
  • Air traffic control & airport 23%
  • Extreme weather 19%
  • Security 0%

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

Salt Lake City (SLC) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 6% of the time, and when it is late the delay averages 57 minutes. It was cancelled 2.9% of the time.

On-time arrivals
93.9%
Less than 15 minutes late
Cancelled
2.9%
Of scheduled flights
Average delay when late
57 min
Flights arriving 15+ minutes late
Flights tracked
35
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 Pittsburgh (PIT)

Historically, this flight arrives 15+ minutes late 38% of the time, and when it is late the delay averages 42 minutes. It was cancelled 3.2% of the time.

On-time arrivals
62.1%
Less than 15 minutes late
Cancelled
3.2%
Of scheduled flights
Average delay when late
42 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 78%
  • Late-arriving aircraft 11%
  • Air traffic control & airport 11%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Nashville (BNA)

Historically, this flight arrives 15+ minutes late 65% of the time, and when it is late the delay averages 45 minutes. It was cancelled 4.2% of the time.

On-time arrivals
34.8%
Less than 15 minutes late
Cancelled
4.2%
Of scheduled flights
Average delay when late
45 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 41%
  • Air traffic control & airport 34%
  • Airline (crew, maintenance, cleaning) 25%
  • Extreme weather 0%
  • 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 19% of the time, and when it is late the delay averages 38 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
38 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 74%
  • Airline (crew, maintenance, cleaning) 26%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Sarasota/Bradenton (SRQ)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 92 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
92 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 57%
  • Air traffic control & airport 34%
  • Airline (crew, maintenance, cleaning) 9%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Knoxville/Maryville (TYS)

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
37 min
Flights arriving 15+ minutes late
Flights tracked
3
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 84%
  • Late-arriving aircraft 16%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Madison (MSN)

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 79.6% 49
October 2025 77.8% 56
November 2025 87.0% 24
December 2025 90.3% 31
January 2026 80.0% 31
February 2026 92.5% 41
March 2026 61.4% 60
April 2026 86.7% 30
May 2026 81.0% 42
June 2026 94.1% 54
July 2026 76.7% 31
August 2026 64.5% 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.