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DelayAtlas

Route reliability record

MFEDFW

McAllen to Dallas-Fort Worth

Flights
2,409
Period
July 2025 to June 2026
Distance
469 mi
Carriers
3
B−GRADE

This route lands a B−, about a point better than the national rate of 77.6%. About one flight in five arrive 15 minutes late or worse, and those flights are late by close to two hours on average. That is a workable record, not a spotless one. That rests on 2,409 flights, of which Envoy Air flew 729 at 80.9% on time.

The US average over the same twelve months is 77.6%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

78.7%

Arrivals under 15 minutes late, of 2,329 completed flights

Avg delay

115 min

Across delayed arrivals only, not all flights

Cancelled

3.03%

National rate is 1.81%

Best carrier

Envoy

80.9% on time across 729 flights

These figures cover 2,409 flights between July 2025 and June 2026. Beyond the headline rate, 10.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Carrier by carrier

Which airline is most reliable on MFE to DFW

The two carriers here are closely matched: 4 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.

On-time performance by carrier on MFE to DFW
AirlineFlightsOn timeAvg delayCancelledGrade
SkyWest Airlinesthin sample10187.9%50 min1.98%A
Envoy Air72980.9%89 min2.06%B
American Airlines1,57977.1%128 min3.55%B−

American Airlines cancels 3.5% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Departure window

The best time of day to leave

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 25 points, against 4 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am682 flights87.8%
  • 8am–11am473 flights80.7%
  • 11am–2pm364 flights77.5%
  • 2pm–5pm319 flights72.2%
  • 5pm–8pm462 flights72.3%
  • 8pm–5am109 flights63.1%

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

The 8pm–5am window is where this operation falls apart: 63.1% on time, against 87.8% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5am–8am window is the busiest, with 682 flights scheduled in it.

Across the year

When delays peak on this route

This route's year swings by 19 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.

On-time rate by calendar month83J90F77M75A82M78J75J71A75S85O76N78D
Darker means more delays. Figures are on-time percentages.February best, August worst

August is the worst month at 70.9% on time, 19 points below February, the best at 89.8%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. May was the busiest month here, with 214 flights.

Across the week, Friday is the strongest day at 85.3% on time and Sunday the weakest at 71.3%. 14 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week77.2Mon82.9Tue80.7Wed79.0Thu85.3Fri74.8Sat71.3Sun
Monday: 77.2 percent on time. Tuesday: 82.9 percent on time. Wednesday: 80.7 percent on time. Thursday: 79.0 percent on time. Friday: 85.3 percent on time. Saturday: 74.8 percent on time. Sunday: 71.3 percent on time

Delay causes

Why this route gets delayed

One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 57,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

  • Late-arriving aircraft
    45%
  • Carrier
    35%
  • Extreme weather
    14%
  • National Airspace System
    6%
  • Security
    0%

Extreme weather accounts for 14% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.3 times the usual weather exposure. The split is drawn from 57,100 reported delay minutes.

45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 57,000 reported delay minutes here, that single category outweighs weather by 3 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit.

Cancellations run at 3.03%, against 1.81% nationally. That is roughly one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and stage length

What a delay here actually costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

At 469 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 5am–8am window matters as much as it does.

The return leg is a different operation and performs like one: it runs 70.6% on time across 2,410 flights, 8 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 8 points of difference.

The sample behind these figures is 2,409 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.

What to do with this

Booking this route

Put together: the delay figures matter less here than the 3.03% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 2,329 completed flights over 12 months sit behind that.

Common questions

MFE to DFW questions

How often is MFE to DFW delayed?

About one flight in five arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 21.3% of the 2,409 flights in this analysis, against 22.4% nationally. Delayed flights are late by close to two hours on average.

Which airline is most reliable on MFE to DFW?

Envoy Air leads at 80.9% on time across 729 flights. American Airlines is at the other end on 77.1%, a gap of 4 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.

What time of day has the fewest delays on MFE to DFW?

The 5am–8am departure window is the strongest at 87.8% on time. The 8pm–5am window is the weakest at 63.1%, 25 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are August delays on MFE to DFW?

August is the weakest month at 70.9% on time, compared with 89.8% in February. Across the year that is 19 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Updated monthly. How this data is collected.