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Flight DL812

Delta Air Lines flight DL812

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Looking for DL812 in the air…

Seattle (SEA) to Detroit (DTW)

Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 98 minutes. It was cancelled 0.5% of the time.

On-time arrivals
92.0%
Less than 15 minutes late
Cancelled
0.5%
Of scheduled flights
Average delay when late
98 min
Flights arriving 15+ minutes late
Flights tracked
365
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 48%
  • Late-arriving aircraft 28%
  • Air traffic control & airport 13%
  • Extreme weather 11%
  • Security 1%

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 90.0% 30
October 2025 96.8% 31
November 2025 100.0% 30
December 2025 83.9% 31
January 2026 93.5% 31
February 2026 96.4% 28
March 2026 90.0% 31
April 2026 96.7% 30
May 2026 86.7% 31
June 2026 89.7% 30
July 2026 90.0% 31
August 2026 90.3% 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.