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United Kingdom to Saint Lucia flight

Flying From United Kingdom to Saint Lucia: What You Need to Know

Cheapest one-way flight price£408
Cheapest return ticket price£601
Off-season travel monthNovember
Peak season for travelJuly
Popular airlineBritish Airways
Cheapest monthMarch

Compare multiple airlines at once to find the best flight deals from United Kingdom to Saint Lucia.

Airlines Flying From United Kingdom to Saint Lucia
British Airways logo British Airways
WestJet logo WestJet
Air Caraïbes logo Air Caraïbes
Norse Atlantic Airways logo Norse Atlantic Airways
Air Canada logo Air Canada

Search Flights From United Kingdom to Saint Lucia

Easily compare flights from United Kingdom to Saint Lucia and find the cheapest tickets available!

Looking for affordable flights from United Kingdom to Saint Lucia? Check out these great prices for the next 90 days, starting at just £408 for a one-way ticket and £601 for a round-trip.

Displayed flight fares from United Kingdom to Saint Lucia are based on average prices across airlines over the next 3 months, according to the latest Trip.com data.

FAQs: Flights From United Kingdom to Saint Lucia

  • When is it the cheapest time to fly from United Kingdom to Saint Lucia?

    According to our flights calendar over the next 90 days, it seems the cheapest date is on 2026-06-17 for one-way flights.
  • The cheapest return flight from United Kingdom to Saint Lucia is on the route from London to Castries, with prices starting at £604 for a return trip between 2026-06-29 and 2026-07-06.
  • Based on our flight data, the average flight time from United Kingdom to Saint Lucia is approximately 8 hours 50 minutes based on our most popular routes from London to Castries. The time may also vary depending on your destination.
  • The cheapest airline flying to Saint Lucia from United Kingdom is Air Transat serving the route from London to Castries.
  • British Airways are airlines that fly frequently from United Kingdom to Saint Lucia. The overall price will vary depending on your destination and travel dates. Budget airlines generally offer lower prices to Australia, but they may have limited baggage allowance, reduced onboard services, and longer commuting times to secondary airports.