Cheap flights from London to Saint Lucia from £397
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Saint Lucia departing on 18/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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British Airways flights from London to Saint Lucia
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How to get the cheapest flight ticket from London to Saint Lucia
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Saint Lucia?
The month of September is, on average, the cheapest month to fly to Saint Lucia from London, with most prices found around £486. If you don’t want to visit Saint Lucia in September, then you should wait until November to fly from London, when ticket prices are also cheap, with an average price of £495.
What is the cheapest day to depart on your flight to Saint Lucia?
The cheapest day to depart on your flight to Saint Lucia is on a Tuesday when prices can be found for as low as £506. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £660.
What is the cheapest London to Saint Lucia flight route?
Fly from London Gatwick to Castries Hewanorra for the best London - Saint Lucia flight prices
What cabin class options are available on London to Saint Lucia flights?
There are 3 cabin classes available to choose from on London to Saint Lucia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from London to Saint Lucia?
British Airways, Air Canada, and WestJet are the most popular carriers operating from London to Saint Lucia
Which airlines fly to Saint Lucia?
British Airways, Virgin Atlantic and TUI Airways are the top three most popular airlines that fly to Saint Lucia from London according to our data. British Airways is the first choice among our users, with 75% of people opting to fly with this airline when travelling to Saint Lucia. Keep in mind that there are 6 different airlines that fly to Saint Lucia on a routine basis, so you have a few additional options to choose from.
How many flights depart from London to Saint Lucia on average per day?
As of June 2025, there are 1 flights per day flying from London to Saint Lucia. The most common time of day flights depart is 11:00, with 100% of flights taking off at midday.
How many flights depart from London to Saint Lucia on average per week?
The number of flights available between London and Saint Lucia is 10 per week as of June 2025. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.
Cheap London to Saint Lucia flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Saint Lucia
Best price found | £397 |
|---|---|
Fastest flight time | 8h 45m |
Direct flights | Mon, Tue, Thu, Fri, Sat and Sun |
Airports in Saint Lucia | 1 airport |
When did momondo last update prices for flights from London to Saint Lucia?
Prices for flights from London to Saint Lucia are refreshed on a daily basis.
How many operators does momondo search for flights from London to Saint Lucia?
The number of operators available for flights from London to Saint Lucia is 6 as of June 2025.
How old do you have to be to fly from London to Saint Lucia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The travel and health documents required for your trip to Saint Lucia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint Lucia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London to Saint Lucia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Saint Lucia is Boeing 777 (94.59% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (2.39%), Airbus A330-900neo (1.56%), and Airbus A330-300 (0.83%).
Best airlines flying from London to Saint Lucia
Compare and see reviews for airlines that fly from London to Saint Lucia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £279 | Free Cancellation | Rating 6.2 16 reviews | |||
| PriceFrom £411 | Free Cancellation | Rating 6.6 7,011 reviews | |||
| PriceFrom £428 | Free Cancellation | Rating 7.4 652 reviews | |||
| PriceFrom £502 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom £508 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom £674 | Free Cancellation | Rating 7.8 1,358 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to Saint Lucia?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Saint Lucia . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from London to Saint Lucia with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for London to Saint Lucia flights to just show those with flexible booking policies.
How can momondo help me find flights from London to Saint Lucia?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Saint Lucia.
I’m not ready to book a flight from London to Saint Lucia right now. Can momondo alert me if prices change?
If you are not ready to book a flight from London to Saint Lucia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint Lucia and let you know when they change.