$117 Cheap flights to Saint Lucia

You can find flights to Saint Lucia from 6 airlines. If you’re unsure which to fly with, consider booking your flight with American Airlines, JetBlue or Delta as these are the most popular among our users. American Airlines is the most favored with 51% of momondo travelers booking flights with this airline.

According to our data, 71% of momondo users who traveled to Saint Lucia in the last year flew into Castries Hewanorra (located in Castries), making it the most popular airport to fly to. There may be other airports in Saint Lucia, but the majority of our users take flights to Castries Hewanorra in order to visit Castries and it’s surrounding areas.

On average, a flight to Saint Lucia will cost $731 per ticket. We’ve had users find flights to Saint Lucia for as low as $109, however. If you’re unable to find a plane ticket for $109, but manage to find one for $542 or less, then this is still a great deal. Keep in mind that flight costs vary depending on where you fly from, what time of year you travel, and what airline you fly with.

Prices for flights to Saint Lucia refresh daily.

As of November 2026, there are 12 operators available to choose from for flights to Saint Lucia.

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Saint Lucia.

The required travel and health documents for your Saint Lucia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Saint Lucia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.