Which airline is most reliable for PHL (Philadelphia) to LAX (Los Angeles)?

The most reliable airline on the PHL to LAX route is Spirit Airlines, with an on-time arrival rate of 79%.

How often are flights delayed from PHL to LAX?

About 22% of flights from PHL to LAX experience delays. 78% arrive on time.

What's the average delay on PHL to LAX flights?

When flights from PHL to LAX are delayed, the average delay is approximately 68 minutes.

Is a short connection safe after a PHL to LAX flight?

With 78% of PHL to LAX flights arriving on time and an average delay of 68 minutes when late, a connection under 60 minutes at LAX is risky. We recommend at least 75-90 minutes for domestic connections after this route.

PHL → LAX

PHL (Philadelphia) to LAX (Los Angeles)

PHL (Philadelphia) to LAX (Los Angeles) flights arrive on time 78% of the time. The most reliable airline on this route is Spirit Airlines at 79%. The average delay is 68 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated July 2026.

PHL → LAX on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 78% of flights arrive on schedule.

Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Accurate?

Spirit Airlines is significantly more reliable on this route at 79% on time vs Frontier Airlines at 63%.

Airline Comparison

Spirit Airlines leads at 79% on time; Frontier Airlines trails at 63%.

Accurate?

Good to know

Departing from PHL

77% on time

Expect ~20 min sitting on the taxiway after your gate pushes back. PHL has long runway queues.

TSA is currently ~19 min. Best time: 4 AM (about 5 min).

PHL cancels 2.4% of flights — higher than average. Have a backup plan.

More about PHL →

Arriving at LAX

82% on time

When flights into LAX are late, the average delay is 70 minutes. Build buffer if you have ground plans.

If connecting at LAX: TSA is ~21 min right now. Allow at least 60 minutes for a domestic connection.

More about LAX →Connection times at LAX →

Flight cancelled or delayed?

Check what Spirit Airlines owes you — refund rights, action plan, complaint email. Free.

Flying out of PHL? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

PHL Airport LAX Airport

Check the return: LAX → PHL

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Data last updated July 2026. Source: Bureau of Transportation Statistics.