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DelayAtlas

Flight number record

DL 1069

Delta Air Lines · Houston to Atlanta

Route
IAH → ATL
Departs
05:30
Flights
365
Period
September 2025 to August 2026
AGRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1069, check with Delta Air Lines.

DL 1069 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 50 minutes. That rests on 365 flights, with a median arrival 7 minutes early.

Set against the rest of the country, DL 1069's record is 15 points better than the US average of 77.3%. That gap is worth roughly 146 fewer late arrivals for every thousand flights.

Key figures

On time

91.9%

Arrivals under 15 minutes late, of 357 completed flights

Avg delay

51 min

Across delayed arrivals only, not all flights

Cancelled

2.19%

National rate is 1.89%

1 hour+ late

2.0%

National rate is 8.3%

These figures cover 365 flights between September 2025 and August 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

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Schedule

When DL 1069 flies

DL 1069 flies IAH to ATL without a single fixed slot. Its most common scheduled departure was 05:30, used on 91 of 365 flights, with 05:40 (57 flights) next.

  • Departs 05:3091 flights24.9%
  • Departs 05:4057 flights15.6%

Scale runs 0% to 100%.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 05:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 1069 runs 3 points better at 91.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Against the route

DL 1069 next to IAH to ATL

Every carrier on IAH to ATL combined arrived on time 76.8% of the time across 4,960 flights, so DL 1069 is 15 points ahead of it. Delta flew 2,543 flights on the same city pair under all its flight numbers, including this one, and those ran 80.4% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 11 points.

DL 1069 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
DL 106936591.9%51 min2.19%A
All Delta Air Lines on IAH–ATL2,54380.4%70 min2.04%B
All carriers on IAH–ATL4,96076.8%68 min1.92%B
Delta Air Lines, whole network1,039,51781.1%71 min1.74%B

Across the year

DL 1069 quarter by quarter

DL 1069 did not run the same all year. Its best quarter was Jul–Sep 2026 at 98.4% on time and its weakest Jan–Mar 2026 at 84.9%, a swing of 14 points on roughly 73 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

  • Jul–Sep 202530 flights96.7%
  • Oct–Dec 202592 flights90.0%
  • Jan–Mar 202690 flights84.9%
  • Apr–Jun 202691 flights94.4%
  • Jul–Sep 202662 flights98.4%

Scale runs 75% to 100%.

By weekday, DL 1069 did best on Wednesday at 98.1% on time and worst on Sunday at 82.4%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

On-time rate by day of the week87.8Mon92.2Tue98.1Wed96.2Thu92.2Fri94.1Sat82.4Sun
Monday: 87.8 percent on time. Tuesday: 92.2 percent on time. Wednesday: 98.1 percent on time. Thursday: 96.2 percent on time. Friday: 92.2 percent on time. Saturday: 94.1 percent on time. Sunday: 82.4 percent on time

Arrival by arrival

How late DL 1069 runs when it is late

DL 1069 often beats the schedule: 90 of 357 completed flights, 25%, arrived 15 minutes or more early. Most of the lateness is short. 19 of the 29 late arrivals were under half an hour behind, and 7 reached an hour or more.

  • 15+ min early90 flights25.2%
  • Within 15 min238 flights66.7%
  • 15–29 min late19 flights5.3%
  • 30–59 min late3 flights0.8%
  • 1–2 hours late2 flights0.6%
  • 2+ hours late5 flights1.4%

Scale runs 0% to 100%.

Share of 357 completed flights by arrival against schedule.

A late pushback is often recovered here: of 21 departures that left 15 minutes late or more, 7 still arrived on time. 15 flights left on time and still arrived late.

The worst days

Worst days for DL 1069

The latest arrival of the period was on 6 October 2025, 4 hours 26 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.

The latest arrivals of DL 1069 in the period
DateArrived late byLargest filed cause
6 October 20254 hours 26 minutesCarrier
21 December 20253 hours 47 minutesCarrier
23 May 20262 hours 10 minutesNational Airspace System
9 December 20252 hours 5 minutesCarrier
27 January 20262 hoursCarrier

Delay causes

Why DL 1069 runs late

Carrier accounts for 77% of the 1,485 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    77%
  • National Airspace System
    21%
  • Extreme weather
    2%

The largest share of delay minutes, 77%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,144 of the 1,485 delay minutes reported here. The split is drawn from 1,485 delay minutes reported on DL 1069.

Cancellations sit at 2.19% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 2.0% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 689 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.

Every one of the 365 flights under DL 1069 in the data flew IAH to ATL. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 365 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking DL 1069

For a booking, read DL 1069 as 91.9% on time with 2.19% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.