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Route Reliability

Denver → Los Angeles

DEN–LAX · 862 miles · Denver International Airport to Los Angeles International Airport

86
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
5 min
Average arrival delay
0.5%
Cancelled
7,728
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.United Airlines85%3,059 flights
  2. 2.Delta Air Lines83%1,081 flights
  3. 3.Frontier Airlines81%731 flights
  4. 4.American Airlines79%925 flights
  5. 5.Southwest Airlines70%1,932 flights

What the data says

Morning-you made the right choice.

DEN–LAX flights departing between 3–6 AM arrived on time 94% of the time, versus 67% between 6–9 PM.

Saturday has been the better bet.

A small edge: 84% on time on Saturdays against 77% on Sundays.

United Airlines has a clear lead on this route.

United Airlines arrived on time 85% of the time on this route; Southwest Airlines managed 70%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon79%(1154 flights)
  • Tue80%(1035 flights)
  • Wed83%(1057 flights)
  • Thu78%(1125 flights)
  • Fri79%(1144 flights)
  • Sat84%(1043 flights)
  • Sun77%(1125 flights)
On-time by departure window
  • 3–6 AM94%(98 flights)
  • 6–9 AM91%(1516 flights)
  • 9 AM–12 PM89%(1278 flights)
  • 12–3 PM84%(1296 flights)
  • 3–6 PM76%(1061 flights)
  • 6–9 PM67%(1639 flights)
  • 9 PM–12 AM69%(795 flights)
On-time trend by month
80%
May

Jun 70% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%658
July 202571%671
August 202577%656
September 202584%649
October 202585%683
November 202585%628
December 202576%645
January 202685%599
February 202683%549
March 202682%630
April 202684%629
May 202680%686

Same trip, other airports

Keep nerding

Based on 7,728 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.