DL1223 · IAH → ATL

Delta Air Lines · Houston to Atlanta · last 12 months · 161 flights tracked

71.8%on-time

DL1223 IAH→ATL: 71.8% on-time over 161 flights (last 12 months) — average. It trails the route average (76.8%) by 5.0 points. Best day to fly: Wed (87.0%); worst: Sun (54.2%). Seasonality matters: Dec is the most reliable month (90.9%), Jun the worst (41.7%). Cancellation rate is 3.1% — have a backup plan. Average arrival delay: 30.7 minutes.

Data: US BTS, last 12 months.

30.7 minavg arrival delay

3.1%cancelled

0diverted

161flights tracked

Arrival delay distribution

Early/on time · 911–60 min · 4161–180 min · 17180+ min · 7

On-time by day of week

Mon

76.0%

Tue

65.2%

Wed

87.0%

Thu

76.0%

Fri

66.7%

Sat

83.3%

Sun

54.2%

On-time by month

90.9%

Dec

76.0%

Jan

82.1%

Feb

66.7%

Mar

88.9%

Apr

83.3%

May

41.7%

Jun

50.0%

Jul

69.2%

Aug

← All flights on IAH–ATL