If you want a cheap flight from Birmingham to St Lucia, you've got zero airlines to choose from.
St Lucia George F L Charles Airport is just one of the airports in St Lucia. If you're not set on a specific airport, try changing your search from St Lucia George F L Charles Airport to St Lucia 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.