Cheap flights from London to Castries from £463

The month of September is, on average, the cheapest month to fly to Castries from London, with most prices found around £552. If you’re not able to fly to Castries in September, then October is your next best option. Flight prices from London to Castries during October average around £597.

Our data shows that Sunday is the least expensive day to fly to Castries. Tickets to fly out on this day can be as low as £708. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Castries on Wednesday is £766.

According to our data, the cheapest time of day to fly to Castries is at midday. momondo users have found flights departing from London to Castries at midday for as low as £658. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Castries, so prices are often more expensive at around £732 per ticket.

Fly from London Gatwick to Castries Hewanorra for the best London - Castries Hewanorra flight prices

There are 3 cabin classes available to choose from on London to Castries flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 25% on your flight if you consider stops on a London to Castries flight.

Historically, on average around 22% of flights between London and Castries have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 22% of their flights experiencing any sort of delay.

The number of flights available between London and Castries is 1 per day as of October 2026. The most frequent departure time is 11:00, with 100% of daily flights leaving at midday.

The number of flights available between London and Castries is 7 per week as of October 2026. The most frequent departure day is Wed, with 29% of weekly flights leaving on this day.