No delays reported for DL 543 (LAS→ATL, ATL→STL, BNA→SEA) as of 6:51 PM ET. It arrived on time 72.5% of the time in June-August 2026. When it was late, the average delay was 33 minutes. None were cancelled. Right now there are no reported delays at LAS, ATL, STL, BNA, SEA.
May not fly today
Leg 1 of 3 (LAS → ATL): Should be in the air from LAS, scheduled to land at ATL at 10:00 PM local time. This flight number flew about 2 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Low 0% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Delta for official times.
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| LAS → ATL Las Vegas, NV to Atlanta, GA | 2:47 PM → 10:00 PM | 100% |
| ATL → STL Atlanta, GA to St. Louis, MO | 4:05 PM → 4:48 PM | 0% |
| BNA → SEA Nashville, TN to Seattle, WA | 5:20 PM → 8:19 PM | 72% |
Local times. Schedules change; check your booking.
How reliable is DL 543?
| Arrived on time (within 15 min) | 72.5% |
| Average delay when late | 33 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 40 |
Best and worst days to fly DL 543
DL 543 was most reliable on Mondays (83% on time) and least reliable on Thursdays (60%).
| Monday | |
| Tuesday | |
| Wednesday | |
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Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by Delta to the Department of Transportation.
Other flights BNA → SEA
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the Delta app.
Delta delays and what you're owed · Airline phone numbers
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is DL 543 delayed today?
Right now there are no reported delays at LAS, ATL, STL, BNA, SEA. Checked 6:51 PM ET. For this flight's gate and exact status, check the Delta app.
Is DL 543 usually on time?
DL 543 arrived within 15 minutes of schedule 72.5% of the time in June-August 2026, with an average delay of 33 minutes when late.
How often is DL 543 cancelled?
0% of DL 543 flights were cancelled in June-August 2026.