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Flight UA1748

United Airlines flight UA1748

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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

Phoenix (PHX) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 86 minutes. It was cancelled 1.0% of the time.

On-time arrivals
76.7%
Less than 15 minutes late
Cancelled
1.0%
Of scheduled flights
Average delay when late
86 min
Flights arriving 15+ minutes late
Flights tracked
198
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 82%
  • Late-arriving aircraft 11%
  • Airline (crew, maintenance, cleaning) 7%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Charlotte (CLT)

Historically, this flight arrives 15+ minutes late 59% of the time, and when it is late the delay averages 88 minutes. It was cancelled 1.0% of the time.

On-time arrivals
40.6%
Less than 15 minutes late
Cancelled
1.0%
Of scheduled flights
Average delay when late
88 min
Flights arriving 15+ minutes late
Flights tracked
102
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 61%
  • Airline (crew, maintenance, cleaning) 19%
  • Air traffic control & airport 19%
  • Extreme weather 1%
  • Security 0%

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

Sarasota/Bradenton (SRQ) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 99 minutes. It was cancelled 0.0% of the time.

On-time arrivals
69.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
99 min
Flights arriving 15+ minutes late
Flights tracked
91
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 40%
  • Airline (crew, maintenance, cleaning) 34%
  • Late-arriving aircraft 25%
  • Extreme weather 1%
  • Security 0%

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

Chicago (ORD) to Baltimore (BWI)

Historically, this flight arrives 15+ minutes late 35% of the time, and when it is late the delay averages 54 minutes. It was cancelled 3.9% of the time.

On-time arrivals
64.9%
Less than 15 minutes late
Cancelled
3.9%
Of scheduled flights
Average delay when late
54 min
Flights arriving 15+ minutes late
Flights tracked
77
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 43%
  • Air traffic control & airport 31%
  • Airline (crew, maintenance, cleaning) 14%
  • Extreme weather 12%
  • Security 0%

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

Chicago (ORD) to Tampa (TPA)

Historically, this flight arrives 15+ minutes late 40% of the time, and when it is late the delay averages 85 minutes. It was cancelled 0.0% of the time.

On-time arrivals
60.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
85 min
Flights arriving 15+ minutes late
Flights tracked
53
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 46%
  • Extreme weather 30%
  • Air traffic control & airport 17%
  • Airline (crew, maintenance, cleaning) 8%
  • Security 0%

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

Chicago (ORD) to Sioux Falls (FSD)

Historically, this flight arrives 15+ minutes late 43% of the time, and when it is late the delay averages 63 minutes. It was cancelled 3.2% of the time.

On-time arrivals
56.7%
Less than 15 minutes late
Cancelled
3.2%
Of scheduled flights
Average delay when late
63 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 73%
  • Late-arriving aircraft 21%
  • Air traffic control & airport 4%
  • Extreme weather 3%
  • Security 0%

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

Newark (EWR) to Phoenix (PHX)

Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 146 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
146 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 89%
  • Air traffic control & airport 11%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Ontario (ONT)

Historically, this flight arrives 15+ minutes late 46% of the time, and when it is late the delay averages 46 minutes. It was cancelled 0.0% of the time.

On-time arrivals
54.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
46 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) 25%
  • Air traffic control & airport 23%
  • Extreme weather 0%
  • Security 0%

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

San Diego (SAN) to Chicago (ORD)

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

On-time arrivals
68.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
77 min
Flights arriving 15+ minutes late
Flights tracked
19
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 80%
  • Air traffic control & airport 13%
  • Airline (crew, maintenance, cleaning) 7%
  • Extreme weather 0%
  • Security 0%

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

Houston (IAH) to Baltimore (BWI)

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

On-time arrivals
81.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
63 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 73%
  • Late-arriving aircraft 23%
  • Air traffic control & airport 4%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Las Vegas (LAS)

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

What caused the delays

  • Late-arriving aircraft 71%
  • Air traffic control & airport 26%
  • Airline (crew, maintenance, cleaning) 3%
  • Extreme weather 0%
  • Security 0%

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

In the news

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 66.7% 60
October 2025 67.3% 56
November 2025 51.6% 31
December 2025 68.9% 45
January 2026 73.5% 36
February 2026 75.0% 45
March 2026 79.3% 59
April 2026 67.8% 60
May 2026 61.7% 62
June 2026 55.9% 60
July 2026 55.0% 61
August 2026 62.9% 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.