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Route · IAH → LCH · 2020–2025 BTS data

Houston to Lake Charles

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAH to LCH (Houston to Lake Charles) ranks #4775 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

91.3%
On-time
+12.3 pts
vs US avg
99 min
Delay when late
633
Flights
#4775 of 4927
Corpus placement

Cancelled

12.5%

Best Month

Aug 2020 98%

Worst Month

Feb 2020 84%

Distance

127 mi

Carriers

6

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Apr 2025 30 5 0 0 OO
Sep 2020 42 1 17 0 EV,OO
Aug 2020 61 1 13 0 EV
Jul 2020 53 3 0 0 EV
Jun 2020 48 5 0 0 EV
May 2020 62 3 4 0 EV
Apr 2020 49 3 22 0 EV
Mar 2020 109 13 21 0 EV,YV,OO
Feb 2020 94 15 0 0 YV,EV,OO
Jan 2020 85 6 2 0 OO,EV

IAH–LCH seasonal on-time pattern

Best: August (98.4%) · weakest: February (84.0%)

80%85%90%95%100% JanFebMarAprMayJunJulAugSep 97.6%

Strongest calendar month

August

98.4% on-time · ~61 flights/mo

Busiest calendar month

March

~109 flights/mo avg

Weakest calendar month

February

84.0% on-time · ~94 flights/mo

Cancellation Rate

12.5%

79 of 633 flights

Diversion Rate

0.0%

0 of 633 flights

Explore origin & destination

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

IAH - Houston

Full on-time, delay-cause, and seasonal performance for Houston, TX.

IAH on-time profile

LCH - Lake Charles

Full on-time, delay-cause, and seasonal performance for Lake Charles, LA.

LCH on-time profile

Compare the two airports

See IAH and LCH side by side on delays, cancellations, and reliability.

Compare IAH vs LCH

Origin-hub reliability standing

Among IAH's stronger departures

IAH → LCH posts a 91.3% on-time rate, landing in the ≥85% band with 17 of 102 BTS-tracked routes leaving Houston. The same hub also shows 79 mid-band and 6 challenged departures · fleet-wide on-time rank #76 of 4927 (highest on-time = #1).

What the Data Says About IAH to LCH

Houston to Lake Charles (IAH to LCH) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 91.3% on-time rate across 633 flights, with delays that do happen averaging 99.4 minutes. The corridor runs roughly 127 miles and is served by 6 carriers. Over the most recent 24 months, 79 of 633 flights were cancelled (12.5%) and 0 diverted (0.0%).

Monthly performance varies moderately here: Aug 2020 was the strongest month at 98% on-time versus Feb 2020 at 84%, a 14-point difference.

On the multi-year calendar, IAH–LCH peaks in August at 98.4% on-time while March carries the heaviest traffic (~109 flights per month) ; the softest month is February at 84.0%, a 14.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IAH to LCH rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IAH to LCH ranks #4775 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 IAH to LCH? ▼
Flights from Houston to Lake Charles have a 91.3% on-time rate based on 633 flights. The average delay is 99.4 minutes. The best recent month was Aug 2020 with 98% on-time.
What is the cancellation rate for IAH to LCH? ▼
Over the last 24 months, 12.5% of flights on this route were cancelled (79 of 633 flights) and 0.0% were diverted.
How far is the flight from IAH to LCH? ▼
The flight distance from Houston (IAH) to Lake Charles (LCH) is approximately 127 miles. This route is served by 6 carriers.
When is the best time to fly from IAH to LCH? ▼
The best recent month for on-time performance was Aug 2020 (98% on-time). The worst was Feb 2020 (84% on-time). Consider booking during months with historically better performance.

Airports on this route

IAH Airport

Houston
LCH Airport

Lake Charles
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 IAH–LCH data

IAH–LCH runs 12.3 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare IAH and LCH airport profiles: delay causes and top routes differ even on the same corridor. IAH airport
  • If your dates flex, August (98.4% on-time) beats February (84.0%) on this corridor. Seasonal chart
  • 4 other routes post a similar 91.3% 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.