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DelayAtlas

Carrier route record

OOIAH→MFE

SkyWest Airlines · Houston to McAllen

Flights
329
Period
September 2025 to August 2026
Share of route
45%
Carriers
2
B+GRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.

SkyWest on IAH to MFE sits in the middle of the pack with a B+. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.3%. The late ones land close to two hours behind schedule. That rests on 329 flights, with a median arrival 5 minutes early.

The US average over the same twelve months is 77.3%, so there is little to separate SkyWest on IAH to MFE from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

75.7%

Arrivals under 15 minutes late, of 325 completed flights

Avg delay

118 min

Across delayed arrivals only, not all flights

Cancelled

0.91%

National rate is 1.89%

Whole route

78.4%

Every carrier on IAH to MFE, 738 flights

These figures cover 329 flights between September 2025 and August 2026. Beyond the headline rate, 13.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

SkyWest against every carrier on IAH to MFE

SkyWest flew 329 of the 738 flights on IAH to MFE, about 45% of it. Its 75.7% on time is 3 points worse than the route as a whole, which runs 78.4%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 80.5% to SkyWest at 75.7%.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on IAH to MFE
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlines40980.5%57 min0.49%B+
SkyWest Airlines (this page)thin sample32975.7%118 min0.91%B+

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Departure window

When SkyWest runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 11 points, against half a point between the best and worst carrier.

  • 5am–8am—
  • 8am–11am1 flights—
  • 11am–2pm74 flights81.1%
  • 2pm–5pm187 flights71.0%
  • 5pm–8pm67 flights82.1%
  • 8pm–5am—

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is the strongest at 82.1% on time. The full set of windows spans 11 points.

Across the year

SkyWest on IAH to MFE through the year

  • Jul–Sep 20256 flights—
  • Oct–Dec 2025115 flights80.0%
  • Jan–Mar 202626 flights—
  • Apr–Jun 2026106 flights69.9%
  • Jul–Sep 202676 flights77.6%

Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 75.7% on time across 329 flights.

SkyWest on IAH to MFE did not run the same all year. Its best quarter was Oct–Dec 2025 at 80.0% on time and its weakest Apr–Jun 2026 at 69.9%, a swing of 10 points on roughly 110 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Across the week, Thursday is the strongest day at 79.2% on time and Sunday the weakest at 72.0%, a spread of 7 points.

On-time rate by day of the week75.0Mon77.8Tue72.3Wed79.2Thu77.6Fri76.2Sat72.0Sun
Monday: 75.0 percent on time. Tuesday: 77.8 percent on time. Wednesday: 72.3 percent on time. Thursday: 79.2 percent on time. Friday: 77.6 percent on time. Saturday: 76.2 percent on time. Sunday: 72.0 percent on time

Arrival by arrival

How late SkyWest on IAH to MFE runs when it is late

When SkyWest on IAH to MFE is late it tends to be very late: 43 of its 79 late arrivals were an hour or more behind, and 19 were two hours or more.

  • 15+ min early79 flights24.3%
  • Within 15 min167 flights51.4%
  • 15–29 min late21 flights6.5%
  • 30–59 min late15 flights4.6%
  • 1–2 hours late24 flights7.4%
  • 2+ hours late19 flights5.8%

Scale runs 0% to 100%.

Share of 325 completed flights by arrival against schedule.

10 of 75 late departures made up the time and arrived on time, 13% of them. 14 flights left on time and still arrived late.

The worst days

Worst days for SkyWest on IAH to MFE

The latest arrival of the period was on 30 November 2025, 20 hours 55 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.

The latest arrivals of SkyWest on IAH to MFE in the period
DateArrived late byLargest filed cause
30 November 202520 hours 55 minutesLate-arriving aircraft
2 July 202618 hours 47 minutesLate-arriving aircraft
10 August 202616 hours 1 minuteCarrier
2 August 20265 hours 46 minutesLate-arriving aircraft
30 June 20264 hours 31 minutesCarrier

Delay causes

Why SkyWest runs late on this route

Carrier accounts for 46% of the 9,305 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    46%
  • Late-arriving aircraft
    40%
  • National Airspace System
    9%
  • Extreme weather
    4%

40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 9,305 reported delay minutes here, that single category outweighs weather by 9 to one. The split is drawn from 9,305 reported delay minutes.

The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 4,323 of the 9,305 delay minutes reported here.

Cancellations sit at 0.91% against a national 1.89%, which is ordinary. Diversions add another 0.30%.

Connections and stage length

What a delay here costs

13.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

At 316 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5pm–8pm window matters as much as it does.

The return leg runs 76.0% on time across 328 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 329 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking SkyWest on IAH to MFE

Put together: treat all of this as provisional. 329 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 75.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 325 completed flights over 12 months sit behind that.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.