Historical on-time performance
San Diego to Las Vegas
258 miData through May 2026Source: US DOT · BTS
Flights on SAN–LAS arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 5,980 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Spirit AirlinesbestOn-time82%Medianon timep9030 minCancel1.8%Flights340
- SkyWest AirlinesOn-time76%Medianon timep9050 minCancel1.3%Flights1,653
- Southwest AirlinesOn-time75%Medianon timep9040 minCancel1.0%Flights3,725
- Frontier AirlinesOn-time59%Medianon timep90110 minCancel3.4%Flights262
Why flights run late
Delay causes
- Airline21%
- Weather5%
- Air traffic (NAS)24%
- Late aircraft50%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline32%
- Weather28%
- Air traffic (NAS)40%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 75 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SAN → LAS
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 88% on time.
- Mornings88% on time · p90 15 min · 5,091 flights
- Middays72% on time · p90 50 min · 4,393 flights
- Evenings70% on time · p90 60 min · 4,407 flights
- Afternoons69% on time · p90 60 min · 3,267 flights
- Overnights66% on time · p90 55 min · 2,732 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 84% on time.
- Tuesdays84% on time · p90 25 min · 2,625 flights
- Wednesdays83% on time · p90 25 min · 2,620 flights
- Saturdays82% on time · p90 35 min · 2,224 flights
- Mondays74% on time · p90 45 min · 3,069 flights
- Sundays70% on time · p90 55 min · 3,181 flights
- Thursdays68% on time · p90 65 min · 3,077 flights
- Fridays65% on time · p90 75 min · 3,094 flights
Keep exploring