(CNN) — Anyone who has been to an airport recently can see that demand for travel is back in a big way. The resources needed to handle the crush of air travelers are not back with a vengeance.
Add summer weather to staffing issues at airports and airlines and you have the perfect storm of delays and cancellations.
52.5% of the airport’s scheduled flights have been delayed this summer, the data shows. Toronto Pearson also ranked No. 4 for flight cancellations globally, with 6.5% of its flights canceled during the period.
This policy allows travelers to change their departing or arriving flights at Billy Bishop Toronto City Airport or extend their connection time at Toronto Pearson.
Europe also suffers from delays
Of course, Toronto’s airport is far from alone in struggling with disruptions.
Seven of the world’s top 10 airports for delays this summer, ranked by percentage of flights delayed, are in Europe. According to FlightAware data, airports in Frankfurt, Paris, Amsterdam and London are experiencing the most significant delays.
US Transportation Secretary Pete Buttigieg recently told CNN that he is seeing improvements in air travel, but he still expects airlines to do better.
“Look, we’re counting on airlines to be able to deliver for passengers and service the tickets that they sell,” Buttigieg said.
Global airports with the most summer delays
The world’s top 10 airports for delays this summer by percentage of flights delayed are:
1. Toronto Pearson International Airport (Canada): 52.5%
2. Frankfurt Airport (Germany): 45.4%
3. Paris Charles de Gaulle Airport (France): 43.2%
4. Amsterdam Airport Schiphol (Netherlands): 41.5%
5. London Gatwick Airport (United Kingdom): 41.1%
6. Heathrow Airport (United Kingdom): 40.5%
7. Munich Airport (Germany): 40.4%
8. Athens International Airport (Greece): 37.9%
9. Sydney Kingsford Smith Airport (Australia): 34.2%
10. Orlando International Airport (United States): 33.4%
The rankings are from FlightAware data from May 26 to July 19.
Global airports with the most summer cancellations
According to FlightAware data, Shenzhen Bao’an International Airport in China’s Guangdong province is No. 1 in the world for cancellations this summer, with nearly 8% of flights canceled. China’s Guangzhou Baiyun International Airport and Chongqing Jiangbei International Airport also feature in the top 10.
Shenzhen Bao’an International Airport in China’s Guangdong province has seen more cancellations since late May than any other airport in the world, according to FlightAware data.
Liang Zhu/Xinhua News Agency/Getty Images
And during China’s Labor Day holiday in May, domestic trips were down by a third compared to the same period last year, according to the Ministry of Culture and Tourism.
Three US airports also ranked in the top 10 in terms of percentage of canceled flights, with New York-area airports Newark and LaGuardia at No. 2 and 3, and Washington National Airport at No. 8.
Looking at the global top 20, Boston (No. 12), Charlotte (No. 13), Philadelphia (No. 14) and Miami (No. 16) all make the airport cancellation list, as well as John F. Kennedy International Airport in New York (No. 15) and O’Hare International Airport in Chicago (No. 19).
While Europe dominates the global list for delays, only one European airport – Amsterdam Schiphol – appears in the top 10 for cancellations from 26 May to 19 July. Australia and Indonesia also made one entry each into the top 10 for cancellations.
Travelers line up to check-in at Newark Liberty International Airport on July 1. Newark is the No. 2 airport in the world for cancellations this summer.
Jinnah Moon/Getty Images
The top 10 airports in the world for cancellations this summer are the percentage of flights canceled:
1. Shenzhen Bao’an International Airport (China): 7.9%
2. Newark Liberty International Airport (US): 7.4%
3. LaGuardia Airport (US): 7%
4. Toronto Pearson International Airport (Canada): 6.5%
5. Soekarno-Hatta International Airport (Indonesia): 6.2%
6. Sydney Kingsford Smith Airport (Australia): 5.9%
7. Guangzhou Baiyun International Airport (China): 5.2%
8. Ronald Reagan Washington National Airport (US): 5%
9. Chongqing Jiangbei International Airport (China): 4.6%
10. Amsterdam Airport Schiphol (Netherlands): 3.9%
Correction: An earlier version of this story referred to “delays” where it should have said “cancellations” regarding Amsterdam Schiphol Airport and airports in Australia and Indonesia.
CNN’s Nectar Gann, Pete Munten and Gregory Wallace contributed to this report.
Top image: Travelers wait to check in at Toronto Pearson International Airport in Mississauga, Ontario on June 30. (Yu Ruidong/China News Service/Getty Images)