Route on-time record
ILM to ATL: most on-time flights and the best time to fly
Wilmington (Wilmington International Airport) to Atlanta (Hartsfield Jackson Atlanta International Airport). 1,136 nonstop flights in Jun 2025 to May 2026, 85% arrived within 15 minutes and 1.5% were cancelled. The most reliable flight number was Delta 3187 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
ILM → ATL
Wilmington to Atlanta: 1,136 nonstop flights a year
On time (12 months)
85%
Cancelled
1.5%
avg delay 12 min
Best time to leave
Before 9 AM
95% on time vs 65% 6 to 9 PM
Most reliable airline
Delta
84% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Delta 3187
6:00 AM → 7:38 AM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
96%
chance on time
- On time (history)
- 99%
- Cancelled
- 1.9%
- Avg arrival delay
- 1 min
- Arrived on time 99% of the time (106 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; 6 to 9 PM: 65%).
Moderate track record · 106 flights
Find Delta 3187 fares Opens this date on Aviasales#2 · Delta 1044
10:26 AM → 12:05 PM1h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 92% of the time (25 flights, Jun 2025 to May 2026).
Limited track record · 25 flights
Find Delta 1044 fares Opens this date on Aviasales#3 · Delta 2725
6:27 PM → 8:09 PM1h 42m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 16 min
- Arrived on time 75% of the time (20 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 65% on time; Before 9 AM: 95%).
Limited track record · 20 flights
Find Delta 2725 fares Opens this date on Aviasales#4 · Delta 731
2:23 PM → 4:00 PM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 67%
- Cancelled
- 0.0%
- Avg arrival delay
- 29 min
- Arrived on time 67% of the time (24 flights, Jun 2025 to May 2026).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Limited track record · 24 flights
Find Delta 731 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines84%
1,136 flights · 85% on time as flown · 1.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM95%
365 flights · avg delay 7 min
- 9 AM to noon91%
223 flights · avg delay 6 min
- Noon to 3 PM79%
277 flights · avg delay 16 min
- 3 to 6 PM80%
186 flights · avg delay 14 min
- 6 to 9 PM65%
85 flights · avg delay 28 min
Best day: Wednesday (91%). Worst: Sunday (83%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)48%
- Late-arriving aircraft30%
- Air traffic control and airport volume14%
- Severe weather7%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
ILM to ATL questions
- What time of day is best to fly ILM to ATL?
- Before 9 AM: 95% of flights arrived on time, against 65% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from ILM to ATL?
- Delta, with a season-adjusted 84% chance of operating and arriving on time over 1,136 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on ILM to ATL?
- June (80% on time); the best was September (96%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from ILM
- ATL to ILM (return)
- ILM to CLT 87%
- ILM to LGA 77%
- ILM to DCA 67%
- ILM to DFW 81%
- ILM to ORD 73%
- ILM to BOS 68%
- ILM to MIA 86%
Live status: FAA delays and ground stops