LAS to ATL flight delays & on-time performance
Nonstop flights from Harry Reid International Airport to Hartsfield Jackson Atlanta International Airport · 1,747 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LAS or ATL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Las Vegas (LAS) to Atlanta (ATL) arrived on time 85% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.9% were cancelled, and 5% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (87% on time); Frontier Airlines was the least (75%).
- Departures scheduled around 6am did best (91% on time); around 12am did worst (78%).
- Wednesday was the most reliable day to fly (91% on time) and Friday the least (81%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (50%).
Which airline is most on time from LAS to ATL?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 87% | 0.8% | 12 min | 4.8% | 3,322 |
| Spirit Airlines | 86% | 0.6% | 11 min | 5.9% | 154 |
| Southwest Airlines | 83% | 0.6% | 8 min | 2.5% | 720 |
| Frontier Airlines | 75% | 1.6% | 20 min | 8.7% | 575 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 12am78%235 flights
- 6am91%483 flights
- 7am91%501 flights
- 8am83%262 flights
- 9am87%248 flights
- 10am88%292 flights
- 11am84%281 flights
- 12pm78%303 flights
- 1pm81%326 flights
- 2pm82%325 flights
- 3pm84%57 flights
- 4pm85%72 flights
- 10pm86%454 flights
- 11pm82%868 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday83%0.9% cancelled
- Tuesday88%0.0% cancelled
- Wednesday91%0.2% cancelled
- Thursday83%0.1% cancelled
- Friday81%1.4% cancelled
- Saturday85%1.7% cancelled
- Sunday82%1.7% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)50%
- Late-arriving aircraft35%
- Air traffic control & airport congestion15%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)56%
- Extreme weather44%
- Air traffic control & airport congestion0%
- Security0%
LAS to ATL: common questions
- How often are LAS to ATL flights on time?
- 85% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Las Vegas to Atlanta cancelled?
- 0.9% of scheduled flights were cancelled (41 of 4,771).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 71 min behind schedule on average, and 5.0% of flights were an hour or more late.
- How long is taxi time at LAS?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ATL to LAS — 76% on time
More flights from Las Vegas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LAS → ATL, nonstop flights by US airlines that report to the DOT. How we calculate this.