DL334

DL334 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Detroit to Las Vegas. Of 960 departures recorded from October 2024 to July 2026, 87.4% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January3158▲ 87.1%
February2856▲ 100.0%
March5462▲ 14.8%
April4360▲ 39.5%
May5662▲ 10.7%
June60600.0%
July3762▲ 67.6%
August31––
September30––
October31–in progress
November28––
December30––
Year to date (Jan–Jul)309420▲ 35.9%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January93.6%82.8%▼ 11.5%
February75.0%96.4%▲ 28.6%
March92.6%90.3%▼ 2.5%
April97.7%94.8%▼ 2.9%
May85.7%93.3%▲ 8.9%
June81.7%80.0%▼ 2.0%
July83.8%72.6%▼ 13.4%
August87.1%––
September83.3%––
October93.6%–in progress
November96.4%––
December75.9%––
Year-to-date average (Jan–Jul)87.1%87.2%0.0%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February00–
March00–
April02–
May02–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December1––
Year to date (Jan–Jul)04

according to the US BTS · October 2024 → July 2026

This is not a forecast

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

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 99.5% 955
  • Cancelled 0.5% 5

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

On time, leg by leg

  1. DTW–LAS655 87.9%
  2. LAS–DTW305 86.5%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

2
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 90.0% 0
November 2024 30 30 96.7% 0
December 2024 31 31 83.9% 0
January 2025 31 31 93.6% 0
February 2025 28 28 75.0% 0
March 2025 54 54 92.6% 0
April 2025 43 43 97.7% 0
May 2025 56 56 85.7% 0
June 2025 60 60 81.7% 0
July 2025 37 37 83.8% 0
August 2025 31 31 87.1% 0
September 2025 30 30 83.3% 0
October 2025 31 31 93.6% 0
November 2025 28 28 96.4% 0
December 2025 30 29 75.9% 1
January 2026 58 58 82.8% 0
February 2026 56 56 96.4% 0
March 2026 62 62 90.3% 0
April 2026 60 58 94.8% 2
May 2026 62 60 93.3% 2
June 2026 60 60 80.0% 0
July 2026 62 62 72.6% 0

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