IAH → ATL

DL1315

DL1315 (Delta Air Lines) flies Houston to Atlanta. Of 657 departures recorded from October 2024 to July 2026, 88.7% left on time, according to the US BTS.

Recorded departures by month

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January31310.0%
February28280.0%
March31310.0%
April30300.0%
May31310.0%
June30300.0%
July31310.0%
August31––
September30––
October31–in progress
November30––
December31––
Year to date (Jan–Jul)2122120.0%

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
January75.0%89.7%▲ 19.5%
February92.9%89.3%▼ 3.8%
March87.1%62.1%▼ 28.7%
April86.7%96.7%▲ 11.5%
May93.6%96.8%▲ 3.4%
June76.7%86.7%▲ 13.0%
July93.3%96.8%▲ 3.7%
August93.6%––
September93.3%––
October93.6%–in progress
November93.1%––
December83.3%––
Year-to-date average (Jan–Jul)86.5%88.3%▲ 2.1%

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
January32▼ 33.3%
February00–
March02–
April00–
May00–
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November1––
December1––
Year to date (Jan–Jul)440.0%

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.

Cancellation share

  • Not cancelled 98.5% 647
  • Cancelled 1.5% 10

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

Legs flown under this number

1
RoutesDistance (km)Avg delay On timeDepartures
IAH ATL George Bush Intercontinental Airport – Hartsfield Jackson Atlanta International Airport 1,108 9.0 min 88.7% 657
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 95.0% 0
November 2024 29 29 86.2% 0
December 2024 31 31 90.3% 0
January 2025 31 28 75.0% 3
February 2025 28 28 92.9% 0
March 2025 31 31 87.1% 0
April 2025 30 30 86.7% 0
May 2025 31 31 93.6% 0
June 2025 30 30 76.7% 0
July 2025 31 30 93.3% 1
August 2025 31 31 93.6% 0
September 2025 30 30 93.3% 0
October 2025 31 31 93.6% 0
November 2025 30 29 93.1% 1
December 2025 31 30 83.3% 1
January 2026 31 29 89.7% 2
February 2026 28 28 89.3% 0
March 2026 31 29 62.1% 2
April 2026 30 30 96.7% 0
May 2026 31 31 96.8% 0
June 2026 30 30 86.7% 0
July 2026 31 31 96.8% 0

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