Flight number record

OO 5415

SkyWest Airlines · Los Angeles to San Diego

Route: LAX → SAN
Departs: 18:50
Flights: 284
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5415, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.

OO 5415 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 284 flights, with a median arrival 7 minutes early.

Set against the rest of the country, OO 5415's record is 10 points better than the US average of 77.6%. That gap is worth roughly 95 fewer late arrivals for every thousand flights.

On time

87.1%

Arrivals under 15 minutes late, of 278 completed flights

Avg delay

77 min

Across delayed arrivals only, not all flights

Cancelled

2.11%

National rate is 1.81%

1 hour+ late

4.7%

National rate is 8.1%

These figures cover 284 flights between July 2025 and June 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When OO 5415 flies

OO 5415 flies LAX to SAN without a single fixed slot. Its most common scheduled departure was 18:50, used on 141 of 284 flights, with 18:45 (32 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 18:50141 flights49.6%
Departs 18:4532 flights11.3%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 18:50 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and OO 5415 runs 19 points better at 87.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

OO 5415 next to LAX to SAN

Every carrier on LAX to SAN combined arrived on time 86.7% of the time across 2,441 flights, so OO 5415 is about level with it. SkyWest flew 2,253 flights on the same city pair under all its flight numbers, including this one, and those ran 86.5% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 8 points.

OO 5415 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5415thin sample	284	87.1%	77 min	2.11%	A
All SkyWest Airlines on LAX–SAN	2,253	86.5%	65 min	1.02%	A
All carriers on LAX–SAN	2,441	86.7%	64 min	0.94%	A+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5415 quarter by quarter

Quarter by quarter OO 5415 held fairly steady: 84.7% in Jul–Sep 2025, 87.5% in Oct–Dec 2025, 92.3% in Jan–Mar 2026 and 85.2% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202585 flights84.7%
Oct–Dec 202584 flights87.5%
Jan–Mar 202654 flights92.3%
Apr–Jun 202661 flights85.2%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5415 did best on Tuesday at 95.6% on time and worst on Friday at 76.3%. Each day rests on about 41 flights, so a gap of 19 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5415 runs late

One category carries most of the weight here. National Airspace System accounts for 49% of the 2,783 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

National Airspace System
49%
Carrier
28%
Late-arriving aircraft
20%
Extreme weather
3%

49% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,359 minutes out of 2,783, against a national NAS share of 21%. The split is drawn from 2,783 delay minutes reported on OO 5415.

Cancellations sit at 2.11% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.7% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The same number turns up on two other city pairs in the data, including IAH to LFT (17) and PHX to LAX (1), but none flew often enough under OO 5415 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to SAN only.

One caution: this is a thin sample. 284 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking OO 5415

For a booking, read OO 5415 as 87.1% on time with 2.11% cancelled over 284 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures