Skip to content
FriendlySkies Review
Menu

Flight DL1021

Delta Air Lines flight DL1021

Read Delta Air Lines reviews →

Looking for DL1021 in the air…

Atlanta (ATL) to Greenville/Greer/Spartanburg (GSP)

Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 68 minutes. It was cancelled 1.3% of the time.

On-time arrivals
75.1%
Less than 15 minutes late
Cancelled
1.3%
Of scheduled flights
Average delay when late
68 min
Flights arriving 15+ minutes late
Flights tracked
228
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 44%
  • Late-arriving aircraft 34%
  • Air traffic control & airport 15%
  • Extreme weather 7%
  • Security 0%

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

New York (LGA) to Orlando (MCO)

Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 58 minutes. It was cancelled 2.7% of the time.

On-time arrivals
77.6%
Less than 15 minutes late
Cancelled
2.7%
Of scheduled flights
Average delay when late
58 min
Flights arriving 15+ minutes late
Flights tracked
110
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 63%
  • Airline (crew, maintenance, cleaning) 27%
  • Late-arriving aircraft 10%
  • Extreme weather 0%
  • Security 0%

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

Orlando (MCO) to New York (LGA)

Historically, this flight arrives 15+ minutes late 30% of the time, and when it is late the delay averages 83 minutes. It was cancelled 2.9% of the time.

On-time arrivals
70.4%
Less than 15 minutes late
Cancelled
2.9%
Of scheduled flights
Average delay when late
83 min
Flights arriving 15+ minutes late
Flights tracked
103
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 41%
  • Late-arriving aircraft 32%
  • Airline (crew, maintenance, cleaning) 25%
  • Extreme weather 2%
  • Security 0%

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

Greenville/Greer/Spartanburg (GSP) to Atlanta (ATL)

Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 89 minutes. It was cancelled 2.5% of the time.

On-time arrivals
73.1%
Less than 15 minutes late
Cancelled
2.5%
Of scheduled flights
Average delay when late
89 min
Flights arriving 15+ minutes late
Flights tracked
80
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 79%
  • Air traffic control & airport 13%
  • Airline (crew, maintenance, cleaning) 8%
  • Extreme weather 0%
  • Security 0%

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

Tucson (TUS) to Minneapolis (MSP)

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

On-time arrivals
73.3%
Less than 15 minutes late
Cancelled
6.2%
Of scheduled flights
Average delay when late
81 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

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

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

In the news

More headlines →

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 93.3% 60
October 2025 63.3% 62
November 2025 68.0% 53
December 2025 71.7% 50
January 2026 80.0% 26
February 2026 93.8% 32
March 2026 77.1% 48
April 2026 94.3% 37
May 2026 77.8% 45
June 2026 75.6% 45
July 2026 51.1% 47
August 2026 50.0% 32

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

More headlines →

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