PlainFlights

Route · LAX → STL · 2020–2025 BTS data

Los Angeles to St. Louis

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), LAX to STL (Los Angeles to St. Louis) ranks #2117 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

81.1%
On-time
+2.1 pts
vs US avg
69 min
Delay when late
5,904
Flights
#2117 of 4927
Corpus placement

Cancelled

0.6%

Best Month

May 2025 91%

Worst Month

May 2024 63%

Distance

1,592 mi

Carriers

10

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 103 25 0 0 WN,OO
Nov 2025 102 27 1 0 OO,WN
Oct 2025 95 17 0 0 OO,WN
Sep 2025 82 16 0 0 WN,OO
Aug 2025 92 22 1 0 OO,WN
Jul 2025 93 17 0 0 OO,WN
Jun 2025 90 22 0 0 AA,OO,WN
May 2025 87 8 1 0 AA,WN
Apr 2025 86 12 1 0 WN,AA
Mar 2025 83 11 0 0 AA,WN
Feb 2025 47 9 0 0 AA,WN
Jan 2025 57 7 5 0 AA,WN
Dec 2024 85 9 0 0 AA,WN
Nov 2024 89 16 0 0 OO,WN,AA
Oct 2024 108 15 0 0 WN,AA
Sep 2024 89 12 0 0 WN,AA
Aug 2024 95 20 0 0 AA,WN
Jul 2024 114 34 2 1 AA,WN
Jun 2024 109 29 1 0 AA,WN
May 2024 111 41 1 0 AA,WN
Apr 2024 106 31 0 1 AA,WN
Mar 2024 96 25 0 0 AA,WN
Feb 2024 71 12 0 0 AA,WN
Jan 2024 85 13 1 0 AA,WN

LAX–STL seasonal on-time pattern

Best: January (87.0%) · weakest: June (76.3%)

75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 81.7%

Strongest calendar month

January

87.0% on-time · ~87 flights/mo

Busiest calendar month

July

~92 flights/mo avg

Weakest calendar month

June

76.3% on-time · ~87 flights/mo

Cancellation Rate

0.6%

14 of 2,175 flights

Diversion Rate

0.1%

2 of 2,175 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

LAX - Los Angeles

Full on-time, delay-cause, and seasonal performance for Los Angeles, CA.

LAX on-time profile

STL - St. Louis

Full on-time, delay-cause, and seasonal performance for St. Louis, MO.

STL on-time profile

Compare the two airports

See LAX and STL side by side on delays, cancellations, and reliability.

Compare LAX vs STL

Origin-hub reliability standing

Mid-pack among LAX departures

From LAX, this corridor sits with 39 other 75–85% on-time routes out of 80 tracked departures, not the hub's reliability leaders (40 at ≥85%) and not the softest ( 1 below 75%). Destination: St. Louis · fleet on-time rank #2705 of 4927.

What the Data Says About LAX to STL

5,904 tracked flights put the LAX to STL pairing (Los Angeles to St. Louis) at a 81.1% on-time rate, squarely in line with the wider network. Delays that do occur run 68.7 minutes on average. Across the 1,592-mile route and its 10 carriers, the trailing 24 months show 0.6% cancelled and 0.1% diverted (2,175 flights sampled).

The monthly split is wide on this route: May 2025 posted the strongest performance at 91% on-time, while May 2024 came in at just 63% - a 28-point swing worth factoring into travel timing.

On the multi-year calendar, LAX–STL peaks in January at 87.0% on-time while July carries the heaviest traffic (~92 flights per month) ; the softest month is June at 76.3%, a 10.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does LAX to STL rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, LAX to STL ranks #2117 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from LAX to STL? ▼
Flights from Los Angeles to St. Louis have a 81.1% on-time rate based on 5,904 flights. The average delay is 68.7 minutes. The best recent month was May 2025 with 91% on-time.
What is the cancellation rate for LAX to STL? ▼
Over the last 24 months, 0.6% of flights on this route were cancelled (14 of 2,175 flights) and 0.1% were diverted.
How far is the flight from LAX to STL? ▼
The flight distance from Los Angeles (LAX) to St. Louis (STL) is approximately 1,592 miles. This route is served by 10 carriers.
When is the best time to fly from LAX to STL? ▼
The best recent month for on-time performance was May 2025 (91% on-time). The worst was May 2024 (63% on-time). Consider booking during months with historically better performance.

Airports on this route

LAX Airport

Los Angeles
STL Airport

St. Louis
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using LAX–STL data

LAX–STL is mid-pack at 81.1% on-time; month and carrier mix move more than the corridor headline.

  • Compare LAX and STL airport profiles: delay causes and top routes differ even on the same corridor. LAX airport
  • If your dates flex, January (87.0% on-time) beats June (76.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 81.1% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.