Memphis to Houston

What the Data Says About MEM to IAH

The Memphis to Houston corridor (MEM → IAH) covers roughly 468 miles and is served by 15 carriers, based on Bureau of Transportation Statistics reporting. Across 4,644 flights in the dataset, this route posts a 81.1% on-time rate with an average delay of 74.5 minutes when flights run late. Over the most recent 24 months of BTS data, 1,426 flights were recorded on this pairing — 21 cancelled (1.5%) and 6 diverted (0.4%). Those baseline metrics tell you what to expect before you book.

Having 15 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 4,644 total flights analyzed, the 81.1% on-time figure is statistically meaningful rather than a small-sample fluke. The 74.5-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Sep 2025 posted the best performance on this corridor at 94% on-time, while Jun 2025 came in at 64% on-time — a 30-point gap between best and worst recent month. For travelers evaluating the MEM to IAH route, the combination of a 81.1% on-time rate, 74.5-minute average delay, 1.5% recent cancellation rate, and 15 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.