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Route Reliability

Las Vegas → San Diego

LAS–SAN · 258 miles · Harry Reid International Airport to San Diego International Airport

68
Usually Fine
WanderNerd Reliability Score
68%
Arrive within 15 minutes
15 min
Average arrival delay
1.4%
Cancelled
6,765
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Delta Air Lines80%651 flights
  2. 2.Spirit Airlines79%347 flights
  3. 3.Alaska Airlines69%1,638 flights
  4. 4.Frontier Airlines67%403 flights
  5. 5.Southwest Airlines65%3,726 flights

What the data says

Morning-you made the right choice.

LAS–SAN flights departing between 3–6 AM arrived on time 89% of the time, versus 55% between 6–9 PM.

Friday is doing you no favors.

LAS–SAN flights arrived on time 79% of the time on Saturdays and just 60% on Fridays. That gap is worth planning around.

Delta Air Lines has a clear lead on this route.

Delta Air Lines arrived on time 80% of the time on this route; Southwest Airlines managed 65%.

Slipping a little lately.

LAS–SAN flights arrived on time 64% of the time over the last three months in the data, compared with 69% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon65%(1064 flights)
  • Tue77%(852 flights)
  • Wed78%(847 flights)
  • Thu62%(1042 flights)
  • Fri60%(1041 flights)
  • Sat79%(743 flights)
  • Sun62%(1073 flights)
On-time by departure window
  • 3–6 AM89%(89 flights)
  • 6–9 AM84%(1517 flights)
  • 9 AM–12 PM65%(1262 flights)
  • 12–3 PM68%(1015 flights)
  • 3–6 PM64%(1319 flights)
  • 6–9 PM55%(992 flights)
  • 9 PM–12 AM62%(468 flights)
On-time trend by month
60%
May

Jun 69% → May 60% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%637
July 202571%633
August 202574%652
September 202573%603
October 202565%560
November 202563%520
December 202563%543
January 202672%483
February 202674%451
March 202667%531
April 202666%516
May 202660%533

Keep nerding

Based on 6,765 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.