Route Reliability

Route reliability

Santa Ana (SNA) to Las Vegas (LAS): which airline is most on time?

On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from Santa Ana, CA (SNA) to Las Vegas, NV (LAS), September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

Santa Ana, CALas Vegas, NV

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Three-letter airport codes, nonstop U.S. domestic flights. One direction at a time.

Route at a glance · September 2025 to August 2026

SNA to LAS

Santa Ana, CA to Las Vegas, NV

On time
82.1%vs 75.6% U.S. average Better than average
Cancelled
0.7%vs 1.9% U.S. average Better than average
60+ min late
6.1%vs 8.1% U.S. average Better than average
Scheduled flights
4,080in 12 months4 airlines
Most reliable airline
Spirit Airlines88.1% on time · 606 flights

On time more often than the U.S. average, with fewer cancellations.

Compared with all U.S. flights, September 2025 to August 2026. “About average” means within 1.5 points for on time, 0.3 for cancelled and 1 for 60+ minutes late.

Airlines on this route

Ranked by on-time arrival

Airlines from SNA to LAS, September 2025 to August 2026. Rates are shares of all scheduled flights.
Airline On time Cancelled 60+ min late Avg delay when late Diverted Flights
1. Spirit Airlines Most reliable 88.1% 2.0% 4.5% 80 min 0.0% 606
2. SkyWest Airlines Operating carrier; sold as United Express, Delta Connection, American Eagle, Alaska 86.0% 0.7% 5.8% 95 min 0.0% 726
3. Southwest Airlines 80.7% 0.3% 6.0% 54 min 0.1% 2,513
4. Frontier Airlines Small sample (under 300 flights) 69.4% 1.7% 12.8% 94 min 0.0% 235

On time = arrived within 15 minutes of schedule. Avg delay when late = average arrival delay of flights 15+ minutes late. "Most reliable" needs at least 300 flights in 12 months. Tap a heading to sort.

What this means

Spirit Airlines has the strongest record on this route.

  • Spirit Airlines had the best on-time record from Santa Ana (SNA) to Las Vegas (LAS): 88.1% of its 606 scheduled flights arrived within 15 minutes of schedule, compared with 80.7% for Southwest Airlines.
  • 0.7% of flights on this route were cancelled (about 1 in 143), 1.2 points lower than the U.S. average of 1.9%.
  • 6.1% of flights, about 1 in 16, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 66 min.
  • Overall, 82.1% of flights on this route arrived on time, 6.5 points higher than the U.S. average of 75.6%.
  • Over the last 3 years, December was the most reliable month on this route (84.9% on time) and July the least reliable (76.8%).
  • Flights scheduled to depart 7 am to 8 am were the most punctual (96.4% on time); flights scheduled to depart 3 pm to 4 pm were the least (70.1%).
  • In the other direction, Las Vegas (LAS) to Santa Ana (SNA), 80.6% of flights were on time and 0.7% were cancelled. Compare airlines LAS to SNA.

Best and worst months to fly SNA to LAS

Jan 83.5%
Feb 81.1%
Mar 78.6%
Apr 81.9%
May 82.5%
Jun 79.8%
Jul 76.8%
Aug 78.7%
Sep 78.8%
Oct 79.5%
Nov 84.7%
Dec 84.9%
Share of scheduled flights on time 12-month average 82.1%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 83.5% 1,037
February 81.1% 967
March 78.6% 1,101
April 81.9% 1,032
May 82.5% 1,008
June 79.8% 1,002
July 76.8% 1,030
August 78.7% 993
September 78.8% 989
October 79.5% 1,011
November 84.7% 1,019
December 84.9% 1,044
Best and worst calendar month by airline, September 2023 to August 2026.
AirlineBest monthWorst month
Spirit Airlines January (89.8%) July (73.1%)
SkyWest Airlines November (90.0%) September (75.0%)
Southwest Airlines November (84.3%) March (76.4%)
Frontier Airlines December (84.7%) July (58.7%)

Month by month, last 12 months

Sep 77.2%
Oct 81.1%
Nov 82.7%
Dec 83.0%
Jan 88.8%
Feb 86.5%
Mar 84.6%
Apr 82.7%
May 83.6%
Jun 77.3%
Jul 79.9%
Aug 75.5%
Share of scheduled flights on time U.S. average 75.6%
All airlines combined, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Sep 2025 77.2% 347
Oct 2025 81.1% 354
Nov 2025 82.7% 358
Dec 2025 83.0% 365
Jan 2026 88.8% 357
Feb 2026 86.5% 340
Mar 2026 84.6% 390
Apr 2026 82.7% 365
May 2026 83.6% 304
Jun 2026 77.3% 286
Jul 2026 79.9% 308
Aug 2026 75.5% 306

Best and worst departure times

6a 95.3%
7a 96.4%
8a 93.2%
9a 87.7%
10a 85.5%
11a 86.4%
12p 88.3%
1p 80.8%
2p 73.1%
3p 70.1%
4p 76.3%
5p 80.0%
6p 79.6%
7p 71.5%
8p 71.4%
9p Insufficient sample
Share of scheduled flights on time
By scheduled local departure hour at SNA, September 2025 to August 2026. Hours with no scheduled flights are omitted. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing 6 am to 7 am 95.3% 379
Departing 7 am to 8 am 96.4% 223
Departing 8 am to 9 am 93.2% 177
Departing 9 am to 10 am 87.7% 308
Departing 10 am to 11 am 85.5% 290
Departing 11 am to noon 86.4% 383
Departing noon to 1 pm 88.3% 94
Departing 1 pm to 2 pm 80.8% 255
Departing 2 pm to 3 pm 73.1% 227
Departing 3 pm to 4 pm 70.1% 224
Departing 4 pm to 5 pm 76.3% 224
Departing 5 pm to 6 pm 80.0% 355
Departing 6 pm to 7 pm 79.6% 225
Departing 7 pm to 8 pm 71.5% 344
Departing 8 pm to 9 pm 71.4% 343
Departing 9 pm to 10 pm Insufficient sample 29
Woman at an airport window watching a plane take off
Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source
U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period
September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through
August 2026
Processed
2026-11-03
Scope
Nonstop scheduled flights from Santa Ana, CA (SNA) to Las Vegas, NV (LAS), one direction. Airlines that report to the DOT only.
Method
Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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