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Flight UA1510

United Airlines flight UA1510

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Looking for UA1510 in the air…

Louisville (SDF) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 65 minutes. It was cancelled 1.4% of the time.

On-time arrivals
80.7%
Less than 15 minutes late
Cancelled
1.4%
Of scheduled flights
Average delay when late
65 min
Flights arriving 15+ minutes late
Flights tracked
363
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 42%
  • Air traffic control & airport 32%
  • Late-arriving aircraft 22%
  • Extreme weather 4%
  • Security 0%

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

Denver (DEN) to Philadelphia (PHL)

Historically, this flight arrives 15+ minutes late 45% of the time, and when it is late the delay averages 102 minutes. It was cancelled 0.8% of the time.

On-time arrivals
54.5%
Less than 15 minutes late
Cancelled
0.8%
Of scheduled flights
Average delay when late
102 min
Flights arriving 15+ minutes late
Flights tracked
123
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 57%
  • Air traffic control & airport 22%
  • Airline (crew, maintenance, cleaning) 20%
  • Extreme weather 1%
  • Security 0%

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

In the news

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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 86.7% 30
October 2025 90.3% 31
November 2025 93.1% 29
December 2025 73.3% 31
January 2026 79.3% 31
February 2026 67.9% 28
March 2026 90.0% 31
April 2026 90.0% 31
May 2026 75.8% 62
June 2026 57.6% 60
July 2026 57.1% 60
August 2026 65.0% 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.