Los Angeles (LAX) to Atlanta (ATL): On-Time Performance
Data through May 2026
The calendar drives reliability on LAX–ATL. September 2025 flights landed on schedule 88% of the time, but June 2025 dropped to 63% — a gap of 25 points. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (81% vs 73%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 1.0%
- Flights/day
- 14
- last 12 months
- Duration
- 4h 19m
- scheduled
- Distance
- 1,947 mi
Best airline from LAX to ATL
4 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 80% | 14 min | 0.9% | 7,844 |
| Spirit Airlines | 79% | 12 min | 1.5% | 1,036 |
| American Airlines | 72% | 27 min | 0.5% | 733 |
| Frontier Airlines | 47% | 40 min | 2.3% | 812 |
Monthly on-time trend
Best time to fly from LAX to ATL
Aim for departures around 5 a.m. (93% on-time); avoid 10 p.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 19 min |
| Tuesday | 80% | 15 min |
| Wednesdaybest | 82% | 13 min |
| Thursday | 79% | 14 min |
| Friday | 75% | 18 min |
| Saturday | 75% | 19 min |
| Sunday | 74% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft36%
- Airline operations48%
- National airspace system16%
- Weather1%
Frequently asked questions
- How often are flights from LAX to ATL delayed?
- 23% of LAX–ATL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 17 minutes.
- Which airline is most reliable from LAX to ATL?
- Delta Air Lines has the best on-time record on this route at 80%, based on 7,844 flights. 4 airlines flew LAX–ATL frequently enough to compare in this period.
- What is the best time of day to fly from LAX to ATL?
- Departures around 5 a.m. have the best record (93% on-time), while departures around 10 p.m. have the worst (66%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LAX to ATL?
- The scheduled LAX–ATL flight time averages 4h 19m over 1,947 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are LAX to ATL flights cancelled?
- 1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from LAX to ATL?
- June 2025 was the roughest month in this dataset, with only 63% of arrivals on time. The best was September 2025 at 88%. If your dates are flexible, that 25-point gap is worth planning around.
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Based on 10,452 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.