How reliable is Columbia Regional Airport?
Flights from COU departed within 15 minutes of schedule in 80% of 13,001 flights in official BTS history — and weather is calmest in Sep. 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 COU looks like
On-time departures
across 13,001 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 Columbia
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, snow · 82/100 favorability
The read on COU
What the numbers say about flying through Columbia Regional Airport
Across official performance history, flights from Columbia left within 15 minutes of schedule about 80% of the time over 13,001 flights. That's a solid, better-than-average operational record. Pair it with an elevated cancellation rate of 3.0% — worth weighing alongside the on-time figure. When a departure does run late, the typical delay is around 16 minutes.
On weather, Columbia is an unusually calm-weather airport year-round. September is the calmest stretch for flying, scoring 95 out of 100 for favorable conditions, while January is the most disruptive at 82, 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 Columbia, 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 COU
- How reliable is Columbia Regional Airport (COU)?
- Flights from Columbia left within 15 minutes of schedule roughly 80% of the time across 13,001 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 3.0%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from COU for good weather?
- September has the calmest flying weather at Columbia Regional Airport. January is the most disruptive, mainly from low visibility & fog and snow.
Planning a trip through Columbia?
Score real flights to and from COU on reliability, weather, and connection safety — not just price.