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

The most reliable airline on the DEN to LGB route is Southwest Airlines, with an on-time arrival rate of 76%.

How often are flights delayed from DEN to LGB?

About 24% of flights from DEN to LGB experience delays. 76% arrive on time.

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

When flights from DEN to LGB are delayed, the average delay is approximately 47 minutes.

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

With 76% of DEN to LGB flights arriving on time and an average delay of 47 minutes when late, a connection under 60 minutes at LGB is risky. We recommend at least 75-90 minutes for domestic connections after this route.

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

DEN to LGB flights are moderately reliable at 76% on time. About 24% of flights experience delays averaging 47 minutes. Delays on this route are most often caused by late incoming aircraft.

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

Southwest Airlines is the most reliable airline flying DEN to LGB, with 76% of flights arriving on time.

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

The best month to fly DEN to LGB is November, when 83% of flights arrive on time. The worst month is June at 64% on time. If your schedule is flexible, flying in November gives you the best odds of an on-time arrival.

DEN → LGB

DEN (Denver) to LGB (Long Beach)

DEN (Denver) to LGB (Long Beach) flights arrive on time 76% of the time. The most reliable airline on this route is Southwest Airlines at 76%. The average delay is 47 minutes. Delays on this route are most often caused by late incoming aircraft.

Source: Bureau of Transportation Statistics. Updated November 2026.

DEN → LGB on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 76% of flights arrive on schedule.

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

Accurate?

Best & worst months to fly DEN → LGB

Best month

November

83% on time

Worst month

June

64% on time

Nov

83%

Dec

82%

Jan

81%

Apr

80%

Feb

80%

Sep

77%

May

76%

Mar

75%

Oct

75%

Aug

74%

Jul

70%

Jun

64%

Good to know

Departing from DEN

78% on time

Expect ~18 min sitting on the taxiway after your gate pushes back. DEN has long runway queues.

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

More about DEN →

Arriving at LGB

84% on time

When flights into LGB are late, the average delay is 51 minutes. Build buffer if you have ground plans.

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

More about LGB →Connection times at LGB →

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