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Route · IAH → LRD · 2020–2025 BTS data

Houston to Laredo

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAH to LRD (Houston to Laredo) ranks #4792 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

93.5%
On-time
+14.5 pts
vs US avg
65 min
Delay when late
617
Flights
#4792 of 4927
Corpus placement

Cancelled

4.1%

Best Month

Mar 2020 96%

Worst Month

Feb 2020 90%

Distance

301 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Nov 2020 50 0 0 0 OO
Oct 2020 49 5 0 0 OO
Sep 2020 50 6 0 1 EV,OO
Aug 2020 52 3 3 0 EV
Jul 2020 44 2 3 0 EV
Jun 2020 43 4 1 0 EV
May 2020 43 2 2 0 EV
Apr 2020 30 1 0 0 EV
Mar 2020 89 4 16 0 EV
Feb 2020 82 8 0 0 EV
Jan 2020 85 5 0 0 EV

IAH–LRD seasonal on-time pattern

Best: November (100.0%) · weakest: September (88.0%)

85%90%95%100%105% JanFebMarAprMayJunJulAugSepOctNov 100%

Strongest calendar month

November

100.0% on-time · ~50 flights/mo

Busiest calendar month

March

~89 flights/mo avg

Weakest calendar month

September

88.0% on-time · ~50 flights/mo

Cancellation Rate

4.1%

25 of 617 flights

Diversion Rate

0.2%

1 of 617 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

LRD - Laredo

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

LRD on-time profile

Compare the two airports

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

Compare IAH vs LRD

Origin-hub reliability standing

Among IAH's stronger departures

IAH → LRD posts a 93.5% 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 #12 of 4927 (highest on-time = #1).

What the Data Says About IAH to LRD

Houston to Laredo (IAH to LRD) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 93.5% on-time rate across 617 flights, with delays that do happen averaging 65.4 minutes. The corridor runs roughly 301 miles and is served by 3 carriers. Over the most recent 24 months, 25 of 617 flights were cancelled (4.1%) and 1 diverted (0.2%).

Monthly performance varies moderately here: Mar 2020 was the strongest month at 96% on-time versus Feb 2020 at 90%, a 5-point difference.

On the multi-year calendar, IAH–LRD peaks in November at 100.0% on-time while March carries the heaviest traffic (~89 flights per month) ; the softest month is September at 88.0%, a 12.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IAH to LRD rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IAH to LRD ranks #4792 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 LRD? ▼
Flights from Houston to Laredo have a 93.5% on-time rate based on 617 flights. The average delay is 65.4 minutes. The best recent month was Mar 2020 with 96% on-time.
What is the cancellation rate for IAH to LRD? ▼
Over the last 24 months, 4.1% of flights on this route were cancelled (25 of 617 flights) and 0.2% were diverted.
How far is the flight from IAH to LRD? ▼
The flight distance from Houston (IAH) to Laredo (LRD) is approximately 301 miles. This route is served by 3 carriers.
When is the best time to fly from IAH to LRD? ▼
The best recent month for on-time performance was Mar 2020 (96% on-time). The worst was Feb 2020 (90% on-time). Consider booking during months with historically better performance.

Airports on this route

IAH Airport

Houston
LRD Airport

Laredo
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–LRD data

IAH–LRD runs 14.5 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 LRD airport profiles: delay causes and top routes differ even on the same corridor. IAH airport
  • If your dates flex, November (100.0% on-time) beats September (88.0%) on this corridor. Seasonal chart
  • 4 other routes post a similar 93.5% 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.