Which airline is most reliable for LGB (Long Beach) to DEN (Denver)?

The most reliable airline on the LGB to DEN route is Southwest Airlines, with an on-time arrival rate of 84%.

How often are flights delayed from LGB to DEN?

About 17% of flights from LGB to DEN experience delays. 83% arrive on time.

What's the average delay on LGB to DEN flights?

When flights from LGB to DEN are delayed, the average delay is approximately 57 minutes.

Is a short connection safe after a LGB to DEN flight?

With 83% of LGB to DEN flights arriving on time and an average delay of 57 minutes when late, a connection under 60 minutes at DEN is risky. We recommend at least 75-90 minutes for domestic connections after this route.

Is LGB (Long Beach) to DEN (Denver) usually delayed?

No, LGB to DEN flights are generally reliable. 83% arrive on time, which is above average. When delays do occur, they average 57 minutes.

What airline is most reliable on LGB (Long Beach) to DEN (Denver)?

Southwest Airlines is the most reliable airline flying LGB to DEN, with 84% of flights arriving on time.

What's the best month to fly LGB (Long Beach) to DEN (Denver)?

The best month to fly LGB to DEN is November, when 92% of flights arrive on time. The worst month is June at 76% on time. If your schedule is flexible, flying in November gives you the best odds of an on-time arrival.

LGB → DEN

LGB (Long Beach) to DEN (Denver)

LGB (Long Beach) to DEN (Denver) flights arrive on time 83% of the time. The most reliable airline on this route is Southwest Airlines at 84%. The average delay is 57 minutes. Delays on this route are most often caused by late incoming aircraft.

Source: Bureau of Transportation Statistics. Updated November 2026.

LGB → DEN on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 83% of flights arrive on schedule.

Delays on this route are most often caused by late incoming aircraft.

Accurate?

Best & worst months to fly LGB → DEN

Best month

November

92% on time

Worst month

June

76% on time

Nov

92%

Jan

90%

Feb

87%

Mar

87%

Oct

87%

Dec

85%

Apr

84%

Sep

83%

Aug

80%

Jul

77%

May

77%

Jun

76%

Good to know

Departing from LGB

84% on time

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

More about LGB →

Arriving at DEN

78% on time

When flights into DEN are late, the average delay is 68 minutes. Build buffer if you have ground plans.

If connecting at DEN: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.

More about DEN →Connection times at DEN →

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