LAS → SAN: 67% on-time

Historical on-time performance

Las Vegas to San Diego

258 miData through May 2026Source: US DOT · BTS

Flights on LAS–SAN arrive on time 67% of the time over the last 12 months.

On-time rate67%arrived within 15 min

p90 delay50 min1 in 10 flights is worse (tail risk)

Cancelled1.1%of scheduled flights

based on 5,982 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

Airline	On-time	Median	p90	Cancel	Flights
Spirit Airlines	77%	on time	40 min	1.2%	340
SkyWest Airlines	73%	on time	50 min	1.3%	1,654
Southwest Airlines	63%	5 min	50 min	0.9%	3,726
Frontier Airlines	63%	on time	100 min	2.7%	262

Spirit Airlines
On-time77%
Medianon time
p9040 min
Cancel1.2%
Flights340
SkyWest Airlines
On-time73%
Medianon time
p9050 min
Cancel1.3%
Flights1,654
Southwest Airlines
On-time63%
Median5 min
p9050 min
Cancel0.9%
Flights3,726
Frontier Airlines
On-time63%
Medianon time
p90100 min
Cancel2.7%
Flights262

Why flights run late

Delay causes

Airline32%
Weather3%
Air traffic (NAS)30%
Late aircraft35%
Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

Airline22%
Weather31%
Air traffic (NAS)46%
Security0%

Most cancellations here are attributed to Air traffic (NAS). Shares are among 67 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 LAS → SAN

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 — 80% on time.

Mornings80% on time · p90 30 min · 5,682 flights
Middays68% on time · p90 50 min · 4,722 flights
Afternoons65% on time · p90 55 min · 3,558 flights
Overnights65% on time · p90 60 min · 2,443 flights
Evenings57% on time · p90 70 min · 3,588 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 60% to 79% on time.

Tuesdays79% on time · p90 30 min · 2,638 flights
Saturdays79% on time · p90 35 min · 2,219 flights
Wednesdays78% on time · p90 35 min · 2,648 flights
Mondays67% on time · p90 50 min · 3,093 flights
Thursdays62% on time · p90 65 min · 3,098 flights
Sundays61% on time · p90 55 min · 3,183 flights
Fridays60% on time · p90 70 min · 3,114 flights

Keep exploring

Delay predictorfor this route→LAS airportLas Vegas→SAN airportSan Diego→Southwest Airlinesairline profile→SkyWest Airlinesairline profile→Spirit Airlinesairline profile→Seasonal delay patternsguide→