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Delta Air Lines

DL1147: Atlanta to Chicago

Delta Air Lines flight DL1147 flies from Atlanta (ATL) to Chicago O'Hare (ORD), 976 km. Over August 2025 to July 2026 it usually arrives about 5 minutes late: 80% of 719 flights arrived within 15 minutes of schedule and 2.9% were cancelled (US Department of Transportation data).

On-time record, last 12 months

80%
on time (within 15 min)
11%
more than 30 min late
2.9%
cancelled
+5 min
average arrival vs schedule

Every operation of DL1147, August 2025 to July 2026: 719 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as DL1147

Other flights from Atlanta to Chicago

DL1037DL1139DL1164DL1178DL1199DL1456DL1477DL1885DL1905DL2486DL2738UA1030

More about Atlanta (ATL) and Chicago O'Hare (ORD).

Questions and answers

Is DL1147 usually on time?
80% of Delta Air Lines flight DL1147's 719 flights from August 2025 to July 2026 arrived within 15 minutes of schedule, 2 points above the US average of 77.6%. It arrived about 5 minutes late on average.
How often is DL1147 cancelled or badly delayed?
2.9% of DL1147's scheduled flights were cancelled from August 2025 to July 2026 (21 of 719), and 11% of the flights that operated arrived more than 30 minutes late.
What route does DL1147 fly?
DL1147 most often flies from Atlanta (ATL) to Chicago O'Hare (ORD), 976 km (360 flights in the period). The same flight number also flew Chicago O'Hare (ORD) to Atlanta (ATL).
Where do these DL1147 figures come from?
From the US Bureau of Transportation Statistics (BTS) on-time records, which cover every domestic flight by the larger US airlines. The figures cover August 2025 to July 2026 and are updated each month when new BTS data is published, about two months after the month ends. See how TripStow measures punctuality.

How does Delta Air Lines compare? Delta Air Lines' on-time record and the US airline league table.

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