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Route Reliability

Los Angeles → St. Louis

LAX–STL · 1,592 miles · Los Angeles International Airport to St. Louis Lambert International Airport

84
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
7 min
Average arrival delay
0.5%
Cancelled
1,030
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Southwest Airlines80%676 flights
  2. 2.American Airlines79%354 flights

What the data says

Morning-you made the right choice.

LAX–STL flights departing between 3–6 AM arrived on time 97% of the time, versus 68% between 12–3 PM.

Mondays have been rough.

LAX–STL flights arrived on time 89% of the time on Wednesdays and just 72% on Mondays. That gap is worth planning around.

Not much between Southwest Airlines and American Airlines.

On this route they all land within 79% to 80% on time. Pick on schedule and price.

Flights on this route

The breakdown

On-time by weekday
  • Mon72%(155 flights)
  • Tue84%(135 flights)
  • Wed89%(129 flights)
  • Thu79%(154 flights)
  • Fri76%(160 flights)
  • Sat81%(133 flights)
  • Sun76%(157 flights)
On-time by departure window
  • 3–6 AM97%(207 flights)
  • 6–9 AM89%(84 flights)
  • 9 AM–12 PM79%(80 flights)
  • 12–3 PM68%(145 flights)
  • 3–6 PM75%(185 flights)
  • 6–9 PM73%(322 flights)
On-time trend by month
78%
May

Jun 78% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%90
July 202583%93
August 202576%91
September 202581%82
October 202582%95
November 202575%101
December 202577%103
January 202681%75
February 202685%74
March 202670%73
April 202686%72
May 202678%74

Same trip, other airports

Keep nerding

Based on 1,030 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.