Skyscanner home

Cheap Flights from Miami International (MIA) to Castries (SLUA)

Compare Miami International to Castries flight deals

Find the cheapest month or even day of the year to fly to Castries

Book the best Castries fare with no extra fees

Flight deals from Miami International Airport to Castries

Looking for a cheap last-minute deal or the best return flight from Miami International Airport to Castries? If you want to travel next month, return fares start from £411. Find the lowest prices on one-way and return tickets right here.
Castries.£183 per passenger.Departing Tue, 21 Apr.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Miami International on Tue, 21 Apr, arriving in St Lucia Vigie.Price includes taxes and charges.From £183, select.
Castries.£183 per passenger.Departing Thu, 4 Jun.One-way flight with Caribbean Airlines.Outbound indirect flight with Caribbean Airlines, departs from Miami International on Thu, 4 Jun, arriving in St Lucia Vigie.Price includes taxes and charges.From £183, select.
Castries.£185 per passenger.Departing Thu, 23 Jul.One-way flight with Caribbean Airlines.Outbound indirect flight with Caribbean Airlines, departs from Miami International on Thu, 23 Jul, arriving in St Lucia Vigie.Price includes taxes and charges.From £185, select.
Castries.£187 per passenger.Departing Sat, 23 May.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Miami International on Sat, 23 May, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £187, select.
Castries.£248 per passenger.Departing Sun, 16 Aug.One-way flight with Caribbean Airlines.Outbound indirect flight with Caribbean Airlines, departs from Miami International on Sun, 16 Aug, arriving in St Lucia Vigie.Price includes taxes and charges.From £248, select.
Castries.£256 per passenger.Departing Tue, 23 Mar.One-way flight with Caribbean Airlines.Outbound indirect flight with Caribbean Airlines, departs from Miami International on Tue, 23 Mar, arriving in St Lucia Vigie.Price includes taxes and charges.From £256, select.
Castries.£256 per passenger.Departing Sat, 27 Feb.One-way flight with Caribbean Airlines.Outbound indirect flight with Caribbean Airlines, departs from Miami International on Sat, 27 Feb, arriving in St Lucia Vigie.Price includes taxes and charges.From £256, select.
Castries.£259 per passenger.Departing Sun, 1 Nov.One-way flight with Caribbean Airlines.Outbound indirect flight with Caribbean Airlines, departs from Miami International on Sun, 1 Nov, arriving in St Lucia Vigie.Price includes taxes and charges.From £259, select.
Castries.£272 per passenger.Departing Tue, 5 Jan.One-way flight with Caribbean Airlines.Outbound indirect flight with Caribbean Airlines, departs from Miami International on Tue, 5 Jan, arriving in St Lucia Vigie.Price includes taxes and charges.From £272, select.
Castries.£273 per passenger.Departing Thu, 22 Oct.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Miami International on Thu, 22 Oct, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £273, select.
Castries.£276 per passenger.Departing Tue, 1 Dec.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Miami International on Tue, 1 Dec, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £276, select.
Castries.£276 per passenger.Departing Tue, 5 Jan.One-way flight with American Airlines.Outbound direct flight with American Airlines departs from Miami International on Tue, 5 Jan, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £276, select.
Castries.£276 per passenger.Departing Tue, 23 Feb.One-way flight with American Airlines.Outbound direct flight with American Airlines departs from Miami International on Tue, 23 Feb, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £276, select.
Castries.£302 per passenger.Departing Thu, 25 Jun.One-way flight with American Airlines.Outbound direct flight with American Airlines departs from Miami International on Thu, 25 Jun, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £302, select.
Castries.£302 per passenger.Departing Sat, 4 Jul.One-way flight with American Airlines.Outbound direct flight with American Airlines departs from Miami International on Sat, 4 Jul, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £302, select.
Castries.£446 per passenger.Departing Mon, 6 Apr.One-way flight with American Airlines.Outbound direct flight with American Airlines departs from Miami International on Mon, 6 Apr, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £446, select.

Find the cheapest month to fly from Miami International to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Miami International to Castries flights are currently cheapest in April.
Apr
from £183
May
from £187
Jun
from £183
Jul
from £185
Aug
from £248
Sep
Find prices
Oct
from £273
Nov
from £259
Dec
from £276
Jan
from £272
Feb
from £256
Mar
from £256

Direct flights from Miami International to Castries

Alternative Miami International to Castries routes

Looking for the cheapest, fastest or easiest route from Miami International to Castries? You could fly into the following airports instead.

St Lucia Vigie

1 mile from central Castries
ClosestCheapest
from £183
Search flights

St Lucia Hewanorra

19 miles from central Castries
from £185
Search flights

Miami to Castries: Flight information

The things to know before you go.
Cheapest flight found£183
Cheapest month to flyApril
Average flight time3 hrs, 38 mins
Most popular airlineAmerican Airlines
Average flights per week15

Finding cheap flights from Miami International to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a return flight from Miami International to Castries is £411. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 38 minutes is the average flight time from Miami International to Castries.
American Airlines and Qatar Airways fly direct from Miami International to Castries.
As of April 2026, there are 15 flights per week flying from Miami International to Castries.
The cheapest month to fly from Miami International to Castries is usually May.
If you're flying from Miami International Airport, the cheapest airport near Castries is St Lucia Hewanorra – which is 19.0 miles away from the centre of Castries. We've found flights into this airport from £411.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Miami International Airport to Castries on Thursday, 7 May 2026.
Yes – the average flight time is 3 hours and 38 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Castries but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Castries is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 27°C. September is typically the warmest month in Castries, when it usually averages around 28°C. You can expect the least rain in February. The coldest month is February, with temperatures averaging 25°C. The rainiest month is October.
Currently, Spirit Airlines and American Airlines offer the cheapest flight tickets to Castries.

Flying from Miami International Airport (MIA) to Castries: what you need to know

  • Expect to be in the air for 4 hours. On average, that's the time it takes for a direct flight from Miami International Airport to Castries.

  • Castries is one hour ahead of Miami, where Miami International Airport is located. Castries runs on the UTC-4 timezone.

  • The busiest route is from Miami International Airport (MIA) to St Lucia Hewnorra International Airport (UVF). Take your pick of ten weekly services between these two airports. American Airlines offers a 08:25 departure between MIA and UVF.

  • For hassle-free travel, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your MIA to Castries flight.

  • Flying over a peak time like March? Public holidays and other popular periods can lead to longer lines and delays at security. Play it safe and arrive up to four hours before an international flight and two hours before a domestic departure.

  • Start your trip at MIA and fly nonstop to St Lucia Hewnorra International Airport (UVF). That's where you can expect to land when searching for Miami International Airport to Castries tickets.

  • American Airlines is a well-known carrier that offers direct flights from Miami International Airport to Castries.

  • We make it a breeze to book plane tickets from MIA to Castries with a stopover. To see your options, uncheck 'Direct flights only.' Then, select a flight offering a stop long enough to explore your chosen city. Well-traveled stopover hubs include:

    • Atlanta Hartsfield-Jackson International Airport (ATL)

    • Piarco International Airport (POS)

    • Grantley Adams International Airport (BGI)

  • Located around 10 kms (6 miles) from the centre of Miami, MIA can be reached in about 20 minutes by car (depending on traffic). Travelling on public transport takes roughly 35 minutes.

  • In search of a hotel close to MIA? If you're boarding an early flight from Miami International Airport to Castries, these stays will put you moments from check-in:

  • Of the flights that depart from Miami International Airport, 78% land on time at their destination.

  • MIA is located at 4200 N.W. 21 Street.

How to find the cheapest flights from Miami International Airport (MIA) to Castries

  • The lowest price we've seen for a one-way Miami International Airport to Castries flight is £183. The cheapest price for a return flight is £411. Bear in mind fares can change due to demand at the time of booking.

  • Get cheap flights from MIA to Castries by booking three months ahead. Based on our research, that's the sweet spot for bagging a bargain.

  • August is the best month for scoring an awesome deal on Miami International Airport to Castries tickets. If you're looking to travel during a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • Spend less time searching for cheap flights from MIA to Castries by creating a Price Alert. We'll send you an email or notification on the app when fares go down.

  • Tailor your trip with filters. Select your preferred arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Miami International Airport to Castries.

Airports in Castries

St Lucia Hewnorra International Airport (UVF)

  • St Lucia Hewnorra International Airport (UVF) to the centre of Castries takes around 1 hour 30 minutes by car. The centre is roughly 72 kms (45 miles) away.

  • Getting to the centre by public transport takes around 2 hours.

  • The last thing you want is a long journey to your hotel if you're arriving on a late flight from Miami International Airport to Castries. Book one of these accommodation options near UVF instead:

  • Lock in the best rate by reserving your vehicle from St Lucia Hewnorra International Airport about one week ahead of your flight from MIA to Castries.

Castries George F. L. Charles Airport (SLU)

  • Once your flight from Miami International Airport to Castries has landed, you can get to the city centre in around 10 minutes by car. Central Castries is roughly 3 kms (2 miles) from Castries George F. L. Charles Airport (SLU).

  • If you're travelling on public transport, it'll take around 15 minutes.

  • Hang up the 'Do not disturb' sign and unwind at a hotel near SLU. Here are a few options where you can kick back after your MIA to Castries flight:

  • Avoid paying extra. Reserving your ride one week ahead of your arrival at SLU can help you lock in a better rate.

Best time to go to Castries

  • It's time to choose your dates for your flight from Miami International Airport to Castries. February is the busiest month to travel to Castries. If you prefer a more low-key vibe, go in September.

  • The warmest month in Castries is September, with temperatures ranging between 26ºC and 30ºC. Book your Miami International Airport to Castries plane ticket then if that's your idea of comfortable weather.

  • Look for cheap tickets from MIA to Castries in February if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 24ºC and 28ºC on average.

More about Castries

  • When it comes to searching for somewhere to lay your head, you'll find the best stays in Castries right here. Check out these hotels after you've booked your flight from Miami International Airport to Castries:

  • Malabar Beach and Vigie Beach are a couple of popular attractions to put on your Castries itinerary. Keep the momentum going by heading to Morne Fortune.

More travel options

Plan the rest of your trip from Miami to Castries

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.