A DIZZYING image showing the busiest day of air travel ever has been published by a flight tracking website.

It shows a record 202,157 planes flying all over the planet in just 24 hours, appearing as a swarm of yellow across the skies.

The incredible image, taken on June 30, has been liked more than 25,000 times so far.

Flightradar24, which was founded in 2006, said it was the busiest day they have ever recorded.

“Yesterday was the busiest day of the year in the skies so far and our busiest day ever,” it said on Twitter. “202,157 flights tracked! The first time we’ve tracked more than 200,000 flights in a single day.”

Yesterday was the busiest day of the year in the skies so far and our busiest day ever. 202,157 flights tracked! The first time we've tracked more than 200,000 flights in a single day on https://t.co/krDfUYSbzK pic.twitter.com/ApCMHaVEQp — Flightradar24 (@flightradar24) June 30, 2018

In an incredible milestone, “at the peak of the day, over 19,000 flights were in the air at the same time,” it said.

According to Flightradar24, August is usually the busiest times for flights. When it comes to the most hectic days of the week, it said: “Generally Thursday or Friday depending on if it is a holiday weekend in Europe or US.”

Meanwhile, Christmas is usually the least busy day of the year.