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Route Reliability

Long Beach → Denver

LGB–DEN · 854 miles · Long Beach Airport to Denver International Airport

88
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
5 min
Average arrival delay
0.3%
Cancelled
1,014
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 82% of the time across 1,014 flights. No comparison to make.

What the data says

Morning-you made the right choice.

LGB–DEN flights departing between 6–9 AM arrived on time 92% of the time, versus 56% between 3–6 PM.

Skip Thursday if you can.

LGB–DEN flights arrived on time 87% of the time on Saturdays. On Thursdays: 77%.

It basically never cancels.

Out of 1,014 scheduled flights, only 0.3% were cancelled.

Slipping a little lately.

LGB–DEN flights arrived on time 84% of the time over the last three months in the data, compared with 88% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon80%(145 flights)
  • Tue83%(135 flights)
  • Wed82%(136 flights)
  • Thu77%(144 flights)
  • Fri80%(148 flights)
  • Sat87%(150 flights)
  • Sun84%(152 flights)
On-time by departure window
  • 6–9 AM92%(362 flights)
  • 9 AM–12 PM89%(246 flights)
  • 12–3 PM77%(220 flights)
  • 3–6 PM56%(172 flights)
  • 6–9 PM80%(10 flights)
On-time trend by month
85%
May

Jun 70% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%91
July 202574%96
August 202576%88
September 202585%86
October 202584%80
November 202585%81
December 202580%80
January 202696%67
February 202688%66
March 202678%92
April 202688%90
May 202685%93

Same trip, other airports

Keep nerding

Based on 1,014 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.