Is DL1223 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (America/Chicago)
229 min late
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Houston
IAH
Actual
Sep 19
Arrival
Atlanta
ATL
Scheduled
Sep 19
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Service date: · Scheduled departure date (America/New_York)
1 min early
Official source · Updated
Departure
Atlanta
ATL
Actual
Sep 19
Arrival
Houston
IAH
Actual
Sep 19
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 1 min early
ATL → IAH
- 9 min early
IAH → ATL
- 13 min early
ATL → IAH
- 7 min early
IAH → ATL
- <1 min late
ATL → IAH
Flight history and details
Aug 21, 2026 — Sep 20, 2026
- Observed arrivals
- 37
- Arrivals over 15 minutes late
- 6
- Observed cancellations
- 0
- Observed occurrences
- 40
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 19, 2026Arrived | Atlanta | Houston | -1 | |
| Sep 18, 2026Arrived | Houston | Atlanta | -9 | |
| Sep 18, 2026Arrived | Atlanta | Houston | -13 | |
| Sep 17, 2026Arrived | Houston | Atlanta | -7 | |
| Sep 17, 2026Arrived | Atlanta | Houston | 0 | |
| Sep 16, 2026Arrived | Houston | Atlanta | -15 | |
| Sep 16, 2026Arrived | Atlanta | Houston | -11 | |
| Sep 15, 2026Arrived | Houston | Atlanta | -21 | |
| Sep 14, 2026Arrived | Atlanta | Houston | -16 | |
| Sep 13, 2026Arrived | Atlanta | Houston | -7 | |
| Sep 12, 2026Arrived | Houston | Atlanta | 0 | |
| Sep 10, 2026Arrived | Atlanta | Houston | 28 | |
| Sep 9, 2026Arrived | Houston | Atlanta | -3 | |
| Sep 9, 2026Arrived | Atlanta | Houston | -9 | |
| Sep 8, 2026Arrived | Atlanta | Houston | 30 | |
| Sep 7, 2026Arrived | Houston | Atlanta | -9 | |
| Sep 7, 2026Arrived | Atlanta | Houston | -26 | |
| Sep 4, 2026Arrived | Houston | Atlanta | -20 | |
| Sep 4, 2026Arrived | Atlanta | Houston | -25 | |
| Sep 3, 2026Arrived | Houston | Atlanta | 113 | |
| Sep 3, 2026Arrived | Atlanta | Houston | 5 | |
| Sep 2, 2026Arrived | Houston | Atlanta | -33 | |
| Aug 31, 2026Arrived | Houston | Atlanta | -48 | |
| Aug 31, 2026Arrived | Atlanta | Houston | -28 | |
| Aug 28, 2026Arrived | Houston | Atlanta | 169 | |
| Aug 28, 2026Arrived | Atlanta | Houston | 196 | |
| Aug 27, 2026Arrived | Houston | Atlanta | -33 | |
| Aug 27, 2026Arrived | Atlanta | Houston | 1 | |
| Aug 26, 2026Arrived | Houston | Atlanta | -37 | |
| Aug 26, 2026Arrived | Atlanta | Houston | -25 | |
| Aug 25, 2026Arrived | Houston | Atlanta | -49 | |
| Aug 25, 2026Arrived | Atlanta | Houston | -35 | |
| Aug 24, 2026Arrived | Houston | Atlanta | -19 | |
| Aug 24, 2026Arrived | Atlanta | Houston | -35 | |
| Aug 23, 2026Arrived | Houston | Atlanta | -42 | |
| Aug 23, 2026Arrived | Atlanta | Houston | -30 | |
| Aug 21, 2026Arrived | Houston | Atlanta | 127 |