Soaring jet fuel prices, skyrocketing airline ticket costs and a general sense of unease surrounding holidays and international trips: it all sounds very negative on the travel landscape as of late.In fact, more than half a million global flights have been cancelled since the start of the Iran War on February 28 up until June 3, it's been revealed in a new Dispatches documentary.Dispatches: Will My Summer Holiday Be Cancelled?, airing tomorrow night at 8pm on Channel 4, sees Kate Quilton taking a look at exclusive data and talking to leading experts in travel to find out just how bad the jet fuel crisis is in the long term.And holiday misery is set to continue for Brits, aviation consultant Alex Macheras reveals in the documentary.'This has been categorically the single greatest crisis for global aviation since the pandemic,' he says.'This has been an incredibly costly period for airlines all over the world, and it's not over yet. Eventually, someone is going to have to pay the bill for that. 'That's why it is very likely - and all indications and industry projections show - that fares next year are likely to be higher than this year, in order to pay for what all these losses airlines are racking up globally.'But, with the jet fuel crisis having made Brits so worried about booking holidays abroad, staycations have been the go-to holiday choice for most.More than half a million global flights have been cancelled since the start of the Iran War on February 28 up until June 3, it's been revealed in a new Dispatches documentary Kate Quilton takes a look at how holidays will be impacted this summer in new Channel 4 documentary, Dispatches: Will My Summer Holiday Be Cancelled? Aviation consultant Alex Macheras said this is the most serious crisis in the industry since CovidRates for short-term holiday rentals in the UK are up 16 per cent this year - with the most popular destinations being Blackpool, Devon and the Lake District.As such, the UK domestic holiday market is set to grow by seven per cent to nearly £14 billion.But the biggest winner of all? Butlin's!Business has been booming since the start of the conflict at the beloved holiday park in Bognor Regis - which can accommodate up to 5,000 guests.Matt Rake, resort director at Butlin's Bognor Regis, says in the episode: 'It is great news. We're busy. We sold out in May half term, we were 22 per cent up in May.'We had 30,000 scoops of ice cream sold across our three resorts, and 35,000 burgers.'We are up for our summer breaks and fully expect to be full and sold out during the summer period.'But while UK staycations are on the rise, long-haul flights aren't so popular - and experts say prices will drop first before they increase. Business has been booming since the start of the conflict at Butlin's Bognor Regis - which can accommodate up to 5,000 guests Rory Boland, travel editor at consumer champion Which?, says even though discounts are available now on flights, they may not last long Jane Hawkes, a consumer rights advocate, says the situation may last longerThe top 10 destinations with the biggest price drop for economy class for return departures in August 2026 (with prices compared to averages from August 2025), according to Skyscanner, are Cape Town, Las Vegas and Nice.Flights to South Africa's capital are actually 20 per cent cheaper than they were a year prior. Consumer champion Janes Hawkes said: 'We will see some airlines starting to reduce their fares, doing offers and deals in order to get those bums on seats. And the same with package holidays. They still need to be filled; they still need to be bought.'Like Macheras, Rory Boland, travel editor at consumer champion Which?, warned the discounts won't last: 'The cost of jet fuel has gone through the roof for airlines, and that is, at some point, going to be reflected in ticket costs. 'The reason it's not at the moment is because demand is down. Fewer people are willing to book a flight, to pay for a holiday, because they are concerned about disruption.'On the drop in prices due to the current lack of demand, he added: 'The implication for you, as a customer, is you might get a bargain. Not only will holidays go ahead in the summer, you might get a really good price.'But Rory warned on the differing levels of risk in booking flights: 'There is a big difference between long haul and short haul in terms of the protections you enjoy from the airlines. 'The UK and the EU have the gold standard of protection for flight cancellations, flight disruptions… once you start going beyond the UK and EU airlines, then you are at the mercy of the laws of that country or that individual airline.' To handle the crisis, there are plenty of ways to mitigate flight worries.Booking a package holiday is a great idea, as companies are obligated to either find you alternative routes or transport - or refund you in case of changes or cancellations.Many of these, including Trailfinders, Jet2 and Tui, have pledged not to add on surcharges as a result of higher fuel costs. Dispatches: Will My Summer Holiday Be Cancelled? airs on Friday at 8pm, Channel 4.