DL833

DL833 (Delta Air Lines) is a multi-stop service on 13 routes, busiest Boise to Atlanta. Of 519 departures recorded from October 2024 to July 2026, 81.7% 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
January531▲ 520.0%
February428▲ 600.0%
March1431▲ 121.4%
April1230▲ 150.0%
May1330▲ 130.8%
June236▼ 73.9%
July2621▼ 19.2%
August47––
September60––
October36–in progress
November30––
December31––
Year to date (Jan–Jul)97177▲ 82.5%

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
January100.0%80.7%▼ 19.3%
February100.0%96.4%▼ 3.6%
March64.3%92.6%▲ 44.0%
April58.3%93.1%▲ 59.6%
May61.5%86.7%▲ 40.8%
June73.9%83.3%▲ 12.7%
July38.5%81.0%▲ 110.5%
August80.9%––
September93.3%––
October88.6%–in progress
November80.0%––
December71.0%––
Year-to-date average (Jan–Jul)70.9%87.7%▲ 23.6%

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–
March04–
April01–
May00–
June00–
July00–
August0––
September0––
October1–in progress
November0––
December0––
Year to date (Jan–Jul)05

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 98.8% 513
  • Cancelled 1.2% 6

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 30, 2026

On time, leg by leg

  1. BOI–ATL118 64.4%
  2. AUS–SEA75 78.4%
  3. IAH–MSP62 87.1%
  4. TRI–ATL55 87.3%
  5. ATL–TRI55 90.9%
  6. SLC–OGG36 93.6%
  7. LAS–MSP34 88.2%
  8. DAL–ATL30 86.7%

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

Legs flown under this number

8
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 10 10 80.0% 0
November 2024 16 16 100.0% 0
December 2024 15 15 80.0% 0
January 2025 5 5 100.0% 0
February 2025 4 4 100.0% 0
March 2025 14 14 64.3% 0
April 2025 12 12 58.3% 0
May 2025 13 13 61.5% 0
June 2025 23 23 73.9% 0
July 2025 26 26 38.5% 0
August 2025 47 47 80.9% 0
September 2025 60 60 93.3% 0
October 2025 36 35 88.6% 1
November 2025 30 30 80.0% 0
December 2025 31 31 71.0% 0
January 2026 31 31 80.7% 0
February 2026 28 28 96.4% 0
March 2026 31 27 92.6% 4
April 2026 30 29 93.1% 1
May 2026 30 30 86.7% 0
June 2026 6 6 83.3% 0
July 2026 21 21 81.0% 0

How to read this chart

Loading the guide…