Which airline is most reliable for BOS (Boston) to LAX (Los Angeles)?

The most reliable airline on the BOS to LAX route is United Airlines, with an on-time arrival rate of 80%.

How often are flights delayed from BOS to LAX?

About 21% of flights from BOS to LAX experience delays. 79% arrive on time.

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

When flights from BOS to LAX are delayed, the average delay is approximately 83 minutes.

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

With 79% of BOS to LAX flights arriving on time and an average delay of 83 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.

BOS → LAX

BOS (Boston) to LAX (Los Angeles)

BOS (Boston) to LAX (Los Angeles) flights arrive on time 79% of the time. The most reliable airline on this route is United Airlines at 80%. The average delay is 83 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated July 2026.

BOS → LAX on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 79% of flights arrive on schedule.

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

Accurate?

United Airlines is significantly more reliable on this route at 80% on time vs Spirit Airlines at 50%.

Airline Comparison

United Airlines leads at 80% on time; Spirit Airlines trails at 50%.

Accurate?

Good to know

Departing from BOS

77% on time

Expect ~21 min sitting on the taxiway after your gate pushes back. BOS has long runway queues.

TSA is currently ~9 min. Best time: 4 AM (about 5 min).

More about BOS →

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?

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Flying out of BOS? We'll brief you.

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

BOS Airport LAX Airport

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Flying this route?

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