Cheap Flights from Raleigh / Durham (RDU) to Castries (SLUA)

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      Compare Raleigh / Durham 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 Raleigh / Durham to Castries

      Looking for a cheap last-minute deal or the best round-trip flight from Raleigh / Durham to Castries? Find the lowest prices on one-way and round-trip tickets right here.

      Find the cheapest month to fly from Raleigh / Durham to Castries

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Raleigh / Durham to Castries flights are currently cheapest in August.

      Alternative Raleigh / Durham to Castries routes

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

      Durham to Castries: Flight information

      The things to know before you go.
      Cheapest flight found$198
      Cheapest month to flyAugust

      Finding cheap flights from Raleigh / Durham 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 round-trip flight from Raleigh / Durham to Castries is $455. 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.
      Currently, there are no airlines that fly direct from Raleigh / Durham to Castries. But we found flights with one or more stops from $455.
      There are no flights flying from Raleigh / Durham to Castries, as of July 2025.
      The cheapest month to fly from Raleigh / Durham to Castries is usually November.
      If you're flying from Raleigh / Durham Airport, the cheapest airport near Castries is St Lucia Hewanorra – which is 19.0 miles away from the center of Castries. We've found flights to this airport from $455.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Raleigh / Durham Airport to Castries on Sunday, November 16, 2025.
      No airlines currently offer direct flights between Raleigh / Durham Airport and Castries. Most routes have one or more stops.
      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 July, the average temperature is usually around 82°F. September is typically the warmest month in Castries, when it usually averages around 83°F. You can expect the least rain in February. The coldest month is February, with temperatures averaging 77°F. The rainiest month is October.
      Currently, jetBlue offers the cheapest flight tickets to Castries.

      Traveling from Raleigh-Durham International Airport (RDU) to Castries: what you need to know

      • Castries's timezone is UTC-4, which is the same as Durham (the location of Raleigh-Durham International Airport).

      • Leave enough time to catch your RDU to Castries flight. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

      • If you're heading away during a public holiday or another peak period, give yourself more time. A good general rule is two hours before domestic flights and up to four hours before international departures. Lines at security and check-in will be longer.

      • A stopover is the ideal opportunity to break up your trip and possibly even visit a new city. When searching for plane tickets from RDU to Castries, deselect the 'Direct flights only' box to see where you can visit along the way. Some popular options include:

        • Charlotte Douglas International Airport (CLT)

        • Newark Liberty International Airport (EWR)

        • Miami International Airport (MIA)

      • Traveling from central Durham to RDU takes around 1 hour 10 minutes on public transport. If you drive, ride-share or get a cab, you'll cover the 10 miles in 20 minutes or so, depending on traffic.

      • Planning to catch an early flight from Raleigh-Durham International Airport to Castries? Avoid the last-minute rush to the airport (and catch some extra z's) by choosing one of these hotels close to RDU:

      • Raleigh-Durham International Airport gets top marks for its on-time performance. 80.09% of flights that depart RDU reach their destination without delay.

      How to find the cheapest flights from Raleigh-Durham International Airport (RDU) to Castries

      • The best price we've seen for a one-way Raleigh-Durham International Airport to Castries flight is $198. The cheapest price for a return flight is $455. Remember fares may change due to demand at the time of booking.

      • To pick up cheap flights from RDU to Castries, book as early as possible. Airlines usually offer the most competitive fares when flights are first released.

      • If you have flexibility with your travel plans, try using the 'Whole month' search tool. It'll show you the cheapest price across every month when looking for a Raleigh-Durham International Airport to Castries ticket.

      • You don't need to keep checking in to find out if fares have dropped when you set up a Price Alert. We'll let you know as soon as there's an updated deal for cheap flights from RDU to Castries.

      • Tailor your flights with filters. Pick your ideal departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Raleigh-Durham International Airport to Castries.

      Airports in Castries

      George F. L. Charles Airport (SLU)

      • George F. L. Charles Airport (SLU) is around 2 miles from central Castries. If you're opting for a ride-share or a cab, the drive takes about 5 minutes.

      • When traveling by public transport, expect a journey time of around 40 minutes.

      • Think about booking a hotel close to SLU if you have a late flight from Raleigh-Durham International Airport to Castries. Settle into one of these options and make your first night all about catching up on rest:

      • Travel at your own speed with a George F. L. Charles Airport rental car. Pick up a set of wheels from Drive A Matic, Final Rentals or Sixt and see more of Castries and beyond.

      • Lock in the best possible rate by booking your vehicle from George F. L. Charles Airport about one week ahead of your flight from RDU to Castries.

      Hewanorra Airport (UVF)

      • Hewanorra Airport (UVF) is roughly 35 miles from the center of Castries. Following your flight from Raleigh-Durham International Airport to Castries, it'll take you around 1 hour 10 minutes to reach the heart of the city in a ride-share or cab.

      • There are some comfortable places to drop your things at near UVF. Unwind and get cozy after your RDU to Castries flight at one of these well-located options:

      • Forget about inconvenient public transport schedules or long cab queues. Pick up a Hewanorra Airport rental car and go in any direction that inspires you. Compare availability and rates from Drive A Matic, Sixt and Final Rentals.

      • Get the lowest price by reserving your ride from UVF one week in advance. You'll also have access to a greater range of vehicles.

      Best time to go to Castries

      • Carefully consider your travel dates before locking in your flight from Raleigh-Durham International Airport to Castries. The city comes alive during high season, but rates are often higher and attractions can be busy. Plan your trip to Castries in the low season for a quieter vibe.

      • The warmest month in Castries is September, with temperatures ranging between 79ºF and 86ºF. Lock in your Raleigh-Durham International Airport to Castries plane ticket then if this is the type of weather you enjoy.

      • Look for cheap tickets from RDU to Castries in February if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 75ºF and 82ºF on average.

      More about Castries

      • Once you've booked your flight from Raleigh-Durham International Airport to Castries, choose a hotel that combines comfort with a great location. Make one of these options your base for exploring Castries:

      • There are so many things to discover in this city it can be tricky to know where to start. Morne Fortune, Derek Walcott Square and Immaculate Conception Church are leading attractions which should feature on any well-planned Castries itinerary.

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