DL668

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

83.1%

DL668, operated by Delta Air Lines, flies 3 different airport pairs — it is a multi-leg service. Across all 1,071 recorded departures, 83.1% left on time; the legs differ and are listed below.

domestic flights only sample 1,071 departures · arrival delay, measured at the gate
This number flies several legs

Because this number covers several legs, the headline figure is an average across all of them. Read the leg table for the one you are flying.

83.1%on time
12.5 minaverage delay
1.7%cancelled
1,071recorded departures

These charts combine all legs flown under this number. Changes in the mix of legs can affect the monthly figures; consult the leg table below.

On-time departures by month

All legs combined

On time means departing no more than 15 minutes after schedule. Monthly punctuality uses only non-cancelled flights with a recorded departure delay; flights with missing times are excluded. Each month reflects the records available from the source.

according to us_bts_otp · 2024-09 → 2026-06

Recorded departures by month

All legs combined

according to us_bts_otp · 2024-09 → 2026-06

Cancellation share

  • Not cancelled 98.3% 1,053
  • Cancelled 1.7% 18

Share of all recorded flights over the period shown, including every leg. Not cancelled does not necessarily mean on time.

according to us_bts_otp · 2024-09-01 → 2026-06-30

Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
September 2024 53 53 88.7% 0
October 2024 35 35 85.7% 0
November 2024 28 28 89.3% 0
December 2024 29 29 82.8% 0
January 2025 27 27 100.0% 0
February 2025 24 24 95.8% 0
March 2025 26 26 84.6% 0
April 2025 26 26 100.0% 0
May 2025 55 55 83.6% 0
June 2025 60 60 73.3% 0
July 2025 62 60 71.7% 2
August 2025 62 61 83.6% 1
September 2025 60 60 85.0% 0
October 2025 62 62 82.3% 0
November 2025 59 59 78.0% 0
December 2025 49 47 68.1% 2
January 2026 58 55 85.5% 3
February 2026 56 52 82.7% 4
March 2026 62 60 93.3% 2
April 2026 56 56 82.1% 0
May 2026 62 62 77.4% 0
June 2026 60 56 83.9% 4

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
JFK SFO John F. Kennedy International Airport – San Francisco International Airport 4,152 4.5 min 90.6% 636
SFO JFK San Francisco International Airport – John F. Kennedy International Airport 4,152 23.9 min 72.5% 432