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Delta Air Lines

Is DL1223 delayed?

Each route and date is shown separately. Confirm that both airports match your booking.

Service date: · Scheduled departure date (America/Chicago)

Arrived

33 min early

Updated

Departure

Houston

IAH

Actual

Scheduled 18:36

Aug 27

Arrival

Atlanta

ATL

Actual

Scheduled 21:59

Aug 27

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual

Service date: · Scheduled departure date (America/New_York)

Arrived

1 min late

Updated

Departure

Atlanta

ATL

Actual

Scheduled 16:26

Aug 27

Arrival

Houston

IAH

Actual

Scheduled 17:40

Aug 27

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: Houston → AtlantaIAHATL
Route overview
Route overview: Atlanta → HoustonATLIAH
Route overview

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • IAH → ATL

    15 min early

  • ATL → IAH

    11 min early

  • IAH → ATL

    21 min early

  • ATL → IAH

    16 min early

  • ATL → IAH

    7 min early
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
32
Arrivals over 15 minutes late
6
Observed cancellations
0
Observed occurrences
35

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

DL1223 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 16, 2026ArrivedHoustonAtlanta
View this flight’s market
-15
Sep 16, 2026ArrivedAtlantaHouston
View this flight’s market
-11
Sep 15, 2026ArrivedHoustonAtlanta
-21
Sep 14, 2026ArrivedAtlantaHouston
-16
Sep 13, 2026ArrivedAtlantaHouston
-7
Sep 12, 2026ArrivedHoustonAtlanta
0
Sep 10, 2026ArrivedAtlantaHouston
28
Sep 9, 2026ArrivedHoustonAtlanta
-3
Sep 9, 2026ArrivedAtlantaHouston
-9
Sep 8, 2026ArrivedAtlantaHouston
30
Sep 7, 2026ArrivedHoustonAtlanta
-9
Sep 7, 2026ArrivedAtlantaHouston
-26
Sep 4, 2026ArrivedHoustonAtlanta
-20
Sep 4, 2026ArrivedAtlantaHouston
-25
Sep 3, 2026ArrivedHoustonAtlanta
113
Sep 3, 2026ArrivedAtlantaHouston
5
Sep 2, 2026ArrivedHoustonAtlanta
-33
Aug 31, 2026ArrivedHoustonAtlanta
-48
Aug 31, 2026ArrivedAtlantaHouston
-28
Aug 28, 2026ArrivedHoustonAtlanta
169
Aug 28, 2026ArrivedAtlantaHouston
196
Aug 27, 2026ArrivedHoustonAtlanta
-33
Aug 27, 2026ArrivedAtlantaHouston
1
Aug 26, 2026ArrivedHoustonAtlanta
-37
Aug 26, 2026ArrivedAtlantaHouston
-25
Aug 25, 2026ArrivedHoustonAtlanta
-49
Aug 25, 2026ArrivedAtlantaHouston
-35
Aug 24, 2026ArrivedHoustonAtlanta
-19
Aug 24, 2026ArrivedAtlantaHouston
-35
Aug 23, 2026ArrivedHoustonAtlanta
-42
Aug 23, 2026ArrivedAtlantaHouston
-30
Aug 21, 2026ArrivedHoustonAtlanta
127

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