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Route · HRL → IAH · 2020–2025 BTS data

Harlingen/San Benito to Houston

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), HRL to IAH (Harlingen/San Benito to Houston) ranks #4152 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

89%
On-time
+10 pts
vs US avg
94 min
Delay when late
1,495
Flights
#4152 of 4927
Corpus placement

Cancelled

3.1%

Best Month

Sep 2021 95%

Worst Month

May 2021 79%

Distance

295 mi

Carriers

10

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2023 30 6 0 0 OO
Sep 2023 55 9 2 0 OO
May 2022 55 7 0 0 YV
Apr 2022 35 1 1 0 OO,YV
Mar 2022 33 3 0 0 OO,YV
Jan 2022 31 4 2 0 OO,YV
Oct 2021 36 8 1 0 OO,YV
Sep 2021 57 3 1 1 YV
Aug 2021 39 5 3 0 YV
Jun 2021 32 11 1 0 OO,YV
May 2021 56 12 0 0 OO,YV
Mar 2021 30 1 0 1 YV
Dec 2020 43 2 0 0 OO,YV
Nov 2020 85 7 0 0 YV,OO
Oct 2020 84 7 0 0 YV,OO
Sep 2020 85 10 0 0 YV,EV,OO
Aug 2020 89 8 4 0 EV,YV
Jul 2020 80 11 3 0 EV,YV
Jun 2020 46 5 0 0 EV
May 2020 43 5 1 0 EV,YV
Apr 2020 38 4 1 0 EV,YV,YX
Mar 2020 127 8 25 0 EV,YV,YX
Feb 2020 140 16 0 0 YV,EV
Jan 2020 146 12 1 0 YV,YX,EV

HRL–IAH seasonal on-time pattern

Best: March (93.7%) · weakest: June (79.5%)

75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 89%

Strongest calendar month

March

93.7% on-time · ~63 flights/mo

Busiest calendar month

February

~140 flights/mo avg

Weakest calendar month

June

79.5% on-time · ~39 flights/mo

Cancellation Rate

3.1%

46 of 1,495 flights

Diversion Rate

0.1%

2 of 1,495 flights

Explore origin & destination

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

HRL - Harlingen/San Benito

Full on-time, delay-cause, and seasonal performance for Harlingen/San Benito, TX.

HRL on-time profile

IAH - Houston

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

IAH on-time profile

Compare the two airports

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

Compare HRL vs IAH

Origin-hub reliability standing

Among HRL's stronger departures

HRL → IAH posts a 89% on-time rate, landing in the ≥85% band with 2 of 5 BTS-tracked routes leaving Harlingen/San Benito. The same hub also shows 3 mid-band and 0 challenged departures · fleet-wide on-time rank #250 of 4927 (highest on-time = #1).

What the Data Says About HRL to IAH

Harlingen/San Benito to Houston (HRL to IAH) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 89% on-time rate across 1,495 flights, with delays that do happen averaging 94.0 minutes. The corridor runs roughly 295 miles and is served by 10 carriers. Over the most recent 24 months, 46 of 1,495 flights were cancelled (3.1%) and 2 diverted (0.1%).

The monthly split is wide on this route: Sep 2021 posted the strongest performance at 95% on-time, while May 2021 came in at just 79% - a 16-point swing worth factoring into travel timing.

On the multi-year calendar, HRL–IAH peaks in March at 93.7% on-time while February carries the heaviest traffic (~140 flights per month) ; the softest month is June at 79.5%, a 14.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does HRL to IAH rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, HRL to IAH ranks #4152 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 HRL to IAH? ▼
Flights from Harlingen/San Benito to Houston have a 89% on-time rate based on 1,495 flights. The average delay is 94.0 minutes. The best recent month was Sep 2021 with 95% on-time.
What is the cancellation rate for HRL to IAH? ▼
Over the last 24 months, 3.1% of flights on this route were cancelled (46 of 1,495 flights) and 0.1% were diverted.
How far is the flight from HRL to IAH? ▼
The flight distance from Harlingen/San Benito (HRL) to Houston (IAH) is approximately 295 miles. This route is served by 10 carriers.
When is the best time to fly from HRL to IAH? ▼
The best recent month for on-time performance was Sep 2021 (95% on-time). The worst was May 2021 (79% on-time). Consider booking during months with historically better performance.

Airports on this route

HRL Airport

Harlingen/San Benito
IAH Airport

Houston
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 HRL–IAH data

HRL–IAH runs 10 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare HRL and IAH airport profiles: delay causes and top routes differ even on the same corridor. HRL airport
  • If your dates flex, March (93.7% on-time) beats June (79.5%) on this corridor. Seasonal chart
  • 4 other routes post a similar 89% 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.