FlightRecord

Harry Reid International Airport (LAS): Delays & On-Time Performance

Data through July 2026

Harry Reid International Airport (LAS) is a tale of two seasons: departures ran 84% on-time in November 2024 but sank to 64% in June 2026. Across the year it averages 76% against a national 78%, over roughly 474 departures a day to 135 destinations.

Departures on-time
76%
left <15 min late
Avg dep delay
16 min
Arrivals on-time
79%
Cancelled
0.8%
Destinations
135
nonstop
Airlines
12

Plan your departure from LAS

The choices most likely to improve your odds, based on this airport’s historical record.

Best departure time
Around 5 a.m.
95% on-time
Best day to fly
Wednesday
84% on-time
Most reliable airline here
Allegiant Air
84% on-time from LAS
Cancellation risk
0.8%
below the US average
Check routes from LAS ↓Compare nearby airports ↓

Monthly on-time trend

Monthly departure on-time percentage at LAS50%75%100%August 2024: 75% on-time (16,089 flights)75Aug 2024September 2024: 80% on-time (15,672 flights)80October 2024: 83% on-time (17,195 flights)83November 2024: 84% on-time (15,733 flights)84Nov 2024December 2024: 80% on-time (15,581 flights)80January 2025: 82% on-time (15,007 flights)82February 2025: 80% on-time (14,178 flights)80Feb 2025March 2025: 80% on-time (16,443 flights)80April 2025: 79% on-time (16,034 flights)79May 2025: 77% on-time (16,720 flights)77May 2025June 2025: 73% on-time (15,782 flights)73July 2025: 71% on-time (15,733 flights)71August 2025: 77% on-time (14,920 flights)77Aug 2025September 2025: 78% on-time (14,399 flights)78October 2025: 74% on-time (15,597 flights)74November 2025: 78% on-time (14,443 flights)78Nov 2025December 2025: 75% on-time (14,547 flights)75January 2026: 80% on-time (13,695 flights)80February 2026: 80% on-time (12,886 flights)80Feb 2026March 2026: 76% on-time (15,169 flights)76April 2026: 74% on-time (14,672 flights)74May 2026: 70% on-time (14,585 flights)70May 2026June 2026: 64% on-time (13,704 flights)64July 2026: 67% on-time (14,315 flights)67

Best time of day to depart from LAS

On-time percentage by scheduled departure hour at LAS5 a.m.: 95% on-time (7,356 flights)56 a.m.: 94% on-time (26,197 flights)67 a.m.: 90% on-time (27,408 flights)78 a.m.: 87% on-time (26,041 flights)89 a.m.: 84% on-time (26,948 flights)910 a.m.: 81% on-time (24,098 flights)1011 a.m.: 79% on-time (22,088 flights)1112 p.m.: 74% on-time (22,943 flights)121 p.m.: 74% on-time (21,202 flights)132 p.m.: 68% on-time (20,951 flights)143 p.m.: 67% on-time (20,346 flights)154 p.m.: 66% on-time (19,038 flights)165 p.m.: 65% on-time (21,055 flights)176 p.m.: 62% on-time (18,811 flights)187 p.m.: 64% on-time (16,742 flights)198 p.m.: 64% on-time (12,250 flights)209 p.m.: 62% on-time (12,315 flights)2110 p.m.: 70% on-time (12,902 flights)2211 p.m.: 77% on-time (14,476 flights)23scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday76%16 min
Tuesday84%10 min
Wednesdaybest84%10 min
Thursday74%17 min
Friday74%17 min
Saturday84%11 min
Sunday75%16 min

Next: compare the busiest routes from LAS ↓

Busiest routes from LAS

RouteFlights/12moOn-timeAvg delay
LAS → LAX (Los Angeles)8,24979%14 min
LAS → DEN (Denver)7,10277%16 min
LAS → SFO (San Francisco)6,11567%21 min
LAS → PHX (Phoenix)6,01880%14 min
LAS → SAN (San Diego)5,63167%20 min
LAS → SEA (Seattle)5,61981%13 min
LAS → ORD (Chicago)5,23778%18 min
LAS → DFW (Dallas/Fort Worth)5,13979%20 min
LAS → ATL (Atlanta)4,77183%13 min
LAS → SNA (Santa Ana)4,15082%11 min
LAS → BUR (Burbank)4,13180%12 min
LAS → SMF (Sacramento)4,12380%12 min
LAS → RNO (Reno)4,10280%12 min
LAS → SJC (San Jose)3,77981%11 min
LAS → SLC (Salt Lake City)3,74482%12 min
LAS → JFK (New York)3,70980%18 min
LAS → IAH (Houston)3,43283%13 min
LAS → OAK (Oakland)3,25876%14 min
LAS → PDX (Portland)2,95679%13 min
LAS → EWR (Newark)2,92679%17 min
LAS → AUS (Austin)2,87775%15 min
LAS → DAL (Dallas)2,84274%14 min
LAS → DTW (Detroit)2,78982%13 min
LAS → ONT (Ontario)2,47678%13 min
LAS → MDW (Chicago)2,30078%12 min
LAS → HNL (Honolulu)2,20276%16 min
LAS → MSP (Minneapolis)2,13485%11 min
LAS → LGB (Long Beach)2,11779%11 min
LAS → STL (St. Louis)2,10179%13 min
LAS → CLT (Charlotte)2,08883%16 min
LAS → BNA (Nashville)2,05179%11 min
LAS → SAT (San Antonio)2,02477%15 min
LAS → HOU (Houston)2,02176%13 min
LAS → MCI (Kansas City)1,99279%12 min
LAS → MCO (Orlando)1,95975%16 min
LAS → BWI (Baltimore)1,78279%12 min
LAS → ABQ (Albuquerque)1,71678%13 min
LAS → FAT (Fresno)1,71480%12 min
LAS → BOS (Boston)1,61077%19 min
LAS → PHL (Philadelphia)1,48880%15 min
LAS → MIA (Miami)1,41381%18 min
LAS → BOI (Boise)1,36277%14 min
LAS → IND (Indianapolis)1,34976%14 min
LAS → TUS (Tucson)1,33678%12 min
LAS → ELP (El Paso)1,33477%14 min
LAS → OKC (Oklahoma City)1,22677%13 min
LAS → OMA (Omaha)1,12777%13 min
LAS → IAD (Washington)1,07885%11 min
LAS → MKE (Milwaukee)1,04977%13 min
LAS → FLL (Fort Lauderdale)1,03877%17 min

Compare airlines departing LAS ↓

Where flights into LAS come from

RouteFlights/12moOn-timeAvg delay
LAX (Los Angeles) → LAS8,23978%16 min
DEN (Denver) → LAS7,13375%17 min
SFO (San Francisco) → LAS6,11875%17 min
PHX (Phoenix) → LAS6,01579%15 min
SEA (Seattle) → LAS5,62177%13 min
SAN (San Diego) → LAS5,61274%18 min
ORD (Chicago) → LAS5,24176%17 min
DFW (Dallas/Fort Worth) → LAS5,13269%22 min

Most reliable routes

  1. LAS → FAR92%
  2. LAS → PIA92%
  3. LAS → MLI91%
  4. LAS → SGF91%
  5. LAS → GTF90%

Most delay-prone routes

  1. LAS → ANC60%
  2. LAS → SFO67%
  3. LAS → SAN67%
  4. LAS → SBP68%
  5. LAS → STS72%

What causes delays at LAS

Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing LAS.

  • Late-arriving aircraft43%
  • Airline operations34%
  • National airspace system20%
  • Weather3%

Alternative airports near Las Vegas

Other airports within 120 miles, compared on departure reliability.

AirportDistanceOn-time departuresAvg delay
SGU — St George Regional Airport112 mi87%13 min

Compare the airport-level record first, then check the exact route you plan to book.

Airline performance at LAS

AirlineOn-time departuresAvg delayFlights
Allegiant Air84%13 min15,249
United Airlines84%13 min31,216
Delta Air Lines84%13 min33,511
Spirit Airlines81%14 min31,796
SkyWest Airlines81%15 min7,901
American Airlines80%20 min30,069
Alaska Airlines78%15 min12,901
JetBlue Airways77%20 min7,448
Frontier Airlines77%19 min26,607
Hawaiian Airlines76%22 min2,309
Southwest Airlines71%16 min180,353

Frequently asked questions

How often are flights delayed at LAS?
24% of departures from Harry Reid International Airport left 15+ minutes late between 2024-07 and 2026-07, with an average departure delay of 16 minutes. The national on-time average over the same period was 78%.
What is the best time of day to depart from LAS?
Flights scheduled around 5 a.m. depart on time 95% of the time at LAS, versus 62% around 6 p.m.. Booking before noon is the usual rule of thumb here.
What is the worst month for delays at LAS?
In this dataset, June 2026 was the weakest month at LAS, with 64% of departures on time.
How often are flights cancelled at LAS?
0.8% of scheduled departures from LAS were cancelled in this period, compared with a national rate of 1.6%.

Popular route pages from this airport

Related guides

Based on 379,384 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.