If you want a cheap flight from Isle Of Man to Stockholm, you've got zero airlines to choose from.
Stockholm Arlanda Airport is just one of the airports in Stockholm. If you're not set on a specific airport, try changing your search from Stockholm Arlanda Airport to Stockholm to see a broader range of flights – they might be cheaper.
During this peak season, hotel and holiday prices often increase too, so it's best to book early. Or you could keep your fingers crossed and hold out for a last-minute deal.