DL2620

DL2620 (Delta Air Lines) is a multi-stop service on 9 routes, busiest Tulsa to Atlanta. Of 747 departures recorded from October 2024 to July 2026, 78.4% left on time, according to the US BTS.

Recorded departures by month

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

Months without data are left blank.

The most recent periods17 periods
PeriodDepartures 2025Departures 2026Change vs last year
January–54–
February–53–
March155▲ 5,400.0%
April1960▲ 215.8%
May2554▲ 116.0%
June4246▲ 9.5%
July4648▲ 4.3%
August40––
September34––
October42–in progress
November60––
December38––

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

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

The most recent periods17 periods
PeriodOn time 2025On time 2026Change vs last year
January–77.6%–
February–83.0%–
March100.0%72.7%▼ 27.3%
April79.0%85.0%▲ 7.7%
May60.0%80.8%▲ 34.6%
June63.2%93.5%▲ 48.0%
July47.8%91.5%▲ 91.3%
August70.0%––
September82.4%––
October83.3%–in progress
November86.7%––
December76.3%––

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods17 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January–5–
February–0–
March00–
April00–
May02–
June40▼ 100.0%
July01–
August0––
September0––
October0–in progress
November0––
December0––

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 98.4% 735
  • Cancelled 1.6% 12

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

On time, leg by leg

  1. TUL–ATL253 82.4%
  2. ATL–TUL249 84.8%
  3. PIT–MSP108 64.2%
  4. MSP–PIT82 65.0%
  5. DCA–DTW30 86.7%

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

Legs flown under this number

5
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 80.0% 0
November 2024 10 10 100.0% 0
March 2025 1 1 100.0% 0
April 2025 19 19 79.0% 0
May 2025 25 25 60.0% 0
June 2025 42 38 63.2% 4
July 2025 46 46 47.8% 0
August 2025 40 40 70.0% 0
September 2025 34 34 82.4% 0
October 2025 42 42 83.3% 0
November 2025 60 60 86.7% 0
December 2025 38 38 76.3% 0
January 2026 54 49 77.6% 5
February 2026 53 53 83.0% 0
March 2026 55 55 72.7% 0
April 2026 60 60 85.0% 0
May 2026 54 52 80.8% 2
June 2026 46 46 93.5% 0
July 2026 48 47 91.5% 1

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