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Flight DL2135

Delta Air Lines flight DL2135

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Looking for DL2135 in the air…

Atlanta (ATL) to Dulles (IAD)

Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 85 minutes. It was cancelled 0.0% of the time.

On-time arrivals
83.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
85 min
Flights arriving 15+ minutes late
Flights tracked
145
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 60%
  • Air traffic control & airport 20%
  • Late-arriving aircraft 15%
  • Extreme weather 4%
  • Security 0%

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

Dulles (IAD) to Atlanta (ATL)

Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 104 minutes. It was cancelled 0.7% of the time.

On-time arrivals
71.5%
Less than 15 minutes late
Cancelled
0.7%
Of scheduled flights
Average delay when late
104 min
Flights arriving 15+ minutes late
Flights tracked
145
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 41%
  • Late-arriving aircraft 38%
  • Airline (crew, maintenance, cleaning) 16%
  • Extreme weather 5%
  • Security 0%

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

Atlanta (ATL) to Charlotte (CLT)

Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 60 minutes. It was cancelled 0.0% of the time.

On-time arrivals
77.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
60 min
Flights arriving 15+ minutes late
Flights tracked
110
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 43%
  • Air traffic control & airport 36%
  • Late-arriving aircraft 15%
  • Extreme weather 5%
  • Security 0%

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

Atlanta (ATL) to San Antonio (SAT)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 64 minutes. It was cancelled 4.4% of the time.

On-time arrivals
86.0%
Less than 15 minutes late
Cancelled
4.4%
Of scheduled flights
Average delay when late
64 min
Flights arriving 15+ minutes late
Flights tracked
45
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 51%
  • Airline (crew, maintenance, cleaning) 43%
  • Air traffic control & airport 6%
  • Extreme weather 0%
  • Security 0%

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

Phoenix (PHX) to Detroit (DTW)

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

On-time arrivals
100.0%
Less than 15 minutes late
Cancelled
6.2%
Of scheduled flights
Average delay when late
—
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 83.3% 30
October 2025 74.2% 31
November 2025 76.7% 30
December 2025 83.3% 31
January 2026 90.9% 23
February 2026 85.2% 27
March 2026 66.7% 7
April 2026 80.6% 36
May 2026 93.4% 62
June 2026 81.7% 60
July 2026 61.3% 62
August 2026 72.1% 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.