British holidaymakers jetting off to and from Spanish airports this bank holiday weekend could find their journey is much busier than usual.Air travel between Saturday, August 29 to Monday, August 31 is set to hit record-breaking volumes.There are a whopping 29,592 flights scheduled across Spanish airport operator AENA's network during this time period, Majorca Daily Bulletin reports.This is a 2.6 per cent increase from the same time last year, up from 28,826 flights. Particularly as this is the last weekend of the summer holidays, as well as a bank holiday in the UK, many will be making the most of the chance to head off one final time or will be returning from their break abroad.Sunday is set to be the busiest, with 7,492 flights expected. Britons jetting travelling to and from Spain this weekend can expect airports to be particularly busy Adolfo Suárez Madrid-Barajas Airport, pictured, is expected to see the highest number of departures and arrivalsMeanwhile, Saturday has 7,434 flights scheduled, with 7,433 expected today (Friday).Monday will see the lowest total of 7,233.As for the busiest airports in Spain this weekend, Adolfo Suárez Madrid-Barajas Airport takes the lead. The hub expects to see 4,972 flights over the four days with the most chaotic time being today when 1,266 flights are scheduled.Josep Tarradellas Barcelona-El Prat Airport follows with 4,421 flights. There is an indefinite ground-handling strike currently taking place at the hub, according to its website.The workers provide vital services such as boarding, check-in and baggage handling for many airlines. The industrial action began on August 4 and has caused 'flight cancellations, airport queues, and baggage problems'.Elsewhere, Palma Airport is set to see 4,053 flights over the bank holiday weekend. Other busy hubs include Málaga-Costa del Sol Airport which has 2,507 scheduled, as well as Alicante-Elche Miguel Hernández Airport with 1,779.It comes as new research by Deloitte and Google found Spain is projected to become the most-visited country. Meanwhile, Josep Tarradellas Barcelona-El Prat Airport, pictured, is dealing with ground-handling strikesBy 2040, Spain is expected to take the lead with 110 million inbound visitors, pushing France to second place with a projected 105 million. These estimations would mark a huge leap for Spain as the country welcomed 97million last year, which was an all-time high according to the National Institute of Statistics. America is forecast to be the third most-visited country by 2040, followed by China and Mexico. The news of Spain's projected influx of visitors may not be surprising for some, as the European spot has long since been a popular spot with Brits. A whopping 19.1million UK residents visited the country in 2025, Travel Gossip reports, spending nearly €24billion. Hordes flock to spots including Benidorm and Barcelona. However, the destination has been battling with over tourism in recent years. Earlier this month, thousands of protesters took to the streets of Majorca to stand against the matter.