How reliable is Charlotte Douglas International Airport?
Flights from CLT departed within 15 minutes of schedule in 79% of 1,443,617 flights in official BTS history — and weather is calmest in Oct. 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 CLT looks like
On-time departures
across 1,443,617 flights
Source: BTS Airport Operations · data through 2026-08-08. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
Weather by month
When the weather works for you at Charlotte
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 · 95/100 favorability
Roughest month
Most disruptive — low visibility & fog, freezing conditions · 85/100 favorability
Connecting through CLT
How much layover you really need
Based on 210 sellable domestic itineraries seen through Google Flights. Median observed layover: 99 min.
International transfers add immigration and bag recheck — give yourself this buffer at CLT or more.
Observed windows come from normalized SearchAPI / Google Flights itineraries. They are not official airport MCTs. We score every connecting itinerary against conservative connection floors.
The read on CLT
What the numbers say about flying through Charlotte Douglas International Airport
Across official performance history, flights from Charlotte left within 15 minutes of schedule about 79% of the time over 1,443,617 flights. That's a respectable but unspectacular operational record. Pair it with a moderate cancellation rate of 1.9%. When a departure does run late, the typical delay is around 13 minutes.
On weather, Charlotte is an unusually calm-weather airport year-round. October is the calmest stretch for flying, scoring 95 out of 100 for favorable conditions, while January is the most disruptive at 85, driven mainly by low visibility & fog and freezing conditions. The year is relatively steady, so no single month stands out as one to avoid on weather alone.
If you're connecting through CLT, give yourself room. Real itineraries sold through CLT bottom out around 42 minutes for a domestic connection, and international transfer wants roughly 90 minutes once immigration and a bag recheck are in the mix. Those are floors, not comfortable buffers — one inbound delay can erase them, so add margin when the connection matters.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Charlotte, 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 CLT
- How reliable is Charlotte Douglas International Airport (CLT)?
- Flights from Charlotte left within 15 minutes of schedule roughly 79% of the time across 1,443,617 flights of official history — a respectable but unspectacular operational record. The cancellation rate runs about 1.9%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from CLT for good weather?
- October has the calmest flying weather at Charlotte Douglas International Airport. January is the most disruptive, mainly from low visibility & fog and freezing conditions.
- How much layover time do you need at CLT?
- Allow at least about 42 minutes for a domestic connection and about 90 minutes for an international one as a floor. These are minimums, not comfortable buffers — a single inbound delay can wipe them out, so add margin when you can.
Reliability guides
Planning a trip through Charlotte?
Score real flights to and from CLT on reliability, weather, and connection safety — not just price.