How reliable is Memphis International Airport?
Flights from MEM departed within 15 minutes of schedule in 82% of 141,654 flights in official BTS history — and weather is calmest in Aug. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the departure punctuality at MEM looks like
On-time departures
across 141,654 flights
Source: BTS Airport Operations · data through 2026-06-25. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
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Weather by month
When the weather works for you at Memphis
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 97/100 favorability
Roughest month
Most disruptive — low visibility & fog, snow · 87/100 favorability
The read on MEM
What the numbers say about flying through Memphis International Airport
Across official performance history, flights from Memphis left within 15 minutes of schedule about 82% of the time over 141,654 flights. That's a solid, better-than-average operational record. Pair it with a moderate cancellation rate of 2.2%. When a departure does run late, the typical delay is around 13 minutes.
On weather, Memphis is an unusually calm-weather airport year-round. August is the calmest stretch for flying, scoring 97 out of 100 for favorable conditions, while January is the most disruptive at 87, driven mainly by low visibility & fog and snow. The year is relatively steady, so no single month stands out as one to avoid on weather alone.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Memphis, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about MEM
- How reliable is Memphis International Airport (MEM)?
- Flights from Memphis left within 15 minutes of schedule roughly 82% of the time across 141,654 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 2.2%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from MEM for good weather?
- August has the calmest flying weather at Memphis International Airport. January is the most disruptive, mainly from low visibility & fog and snow.
Planning a trip through Memphis?
Score real flights to and from MEM on reliability, weather, and connection safety — not just price.