Find Castries (SLUA) flights from C$137

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      Travellers and cabin class, 1 Adult, Economy
      Air Canada Rouge
      Air Canada
      WestJet

      Compare Castries flights across hundreds of providers

      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 to Castries

      Looking for a cheap last-minute deal or the best return flight to Castries? If you want to travel to Castries next month, return fares start from C$322. Find the lowest prices on one-way and return tickets right here.

      Find the cheapest time to fly to Castries

      Flexible on travel dates? Find the cheapest month – or even day – to fly to Castries.
      Cheapest month:November
      Most expensive month:August

      Airports in Castries

      Compare routes to Castries below. You may find an airport to fly into that's cheaper, faster, or easier.

      Direct flights to Castries

      Air Canada
      Air Canada Rouge
      WestJet

      Frequently asked questions

      There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
      Air Canada Rouge, Air Canada, WestJet all fly direct to Castries.
      The cheapest month to fly to Castries is usually November.
      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.
      Yes – you can fly direct to St Lucia Hewanorra Airport and the average flight time is 5 hours and 21 minutes.
      The best price we found for a return flight to Castries is C$320. 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.
      The cheapest airport near Castries is St Lucia Hewanorra – which is 30.4 km away from the centre of Castries. We've found flights into this airport from C$320.
      After crunching the numbers on our flight calendar, we found that the cheapest date to fly to Castries is Tuesday, November 10, 2026.

      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.

      The average temperature in Castries in September is around 28°C. The warmest month in Castries is typically September, which averages 30°C. The coolest month is February, with temperatures averaging 24°C. The rainiest month is August, and it usually rains the least in March.
      Currently, WestJet offers the cheapest flight tickets to Castries.

      Flying to Castries

      The things to know before you go.
      Cheapest flight foundC$320
      Cheapest month to flyNovember
      Average flight time5 hrs, 21 mins
      Most popular airlineAir Canada Rouge
      Average flights per week11

      Discover Castries

      How to find cheap flights to Castries

      • C$137 is the lowest price for a one-way flight to Castries. Or you can book a round-trip plane ticket for C$320.

      • Monitor fares easily with Price Alerts delivered right to your inbox or app. Simply sign up for these automatic notifications and never miss out on a deal again.

      • Roughly one month ahead is a great time to book your plane ticket. This is a general recommendation for getting the cheapest fares.

      • Expand your search for cheap flights to Castries by clicking the 'Add nearby airports' box. This gives you access to fares for other airports in the region, which could mean lower fares.

      • Indirect routes can often save you money, so consider taking a flight with a stop. Just uncheck the 'Direct flights' box when searching for your tickets.

      Best time to go to Castries

      • To find the month with the cheapest flights, use the 'Whole month' tool. If you have flexible travel dates, search for the green prices on the calendar — they highlight the lowest fares available that month.

      • To experience the city at its busiest, lock in your flights for December. Travelling during high seasons generally means more to do and see compared to other times of the year.

      • Visit in September if you want a more laid-back vibe. This is the quietest time of year and also when plane tickets to Castries are often more affordable.

      • The weather can make or break your trip, so consider what kind of conditions you enjoy travelling in. Castries is warmest in September, averaging between 26ºC (79ºF) and 30ºC (86ºF).

      • February has the lowest temperatures, ranging from about 24ºC (75ºF) to 28ºC (82ºF).

      • Want to leave the umbrella at home? February is the driest month in Castries, averaging one day of rainfall.

      • August brings the wettest conditions. You can expect around 11 days of rainfall.

      Travelling to Castries: what you need to know

      Getting to central Castries from St Lucia Hewanorra Airport (UVF)

      • UVF, the city's primary airport, is located about 72 kilometres from central Castries.

      • If you're catching a cab or ride-sharing after your flight to Castries, it'll take around 1 hour 30 minutes to get to the centre.

      • The journey when using public transport takes about 2 hours.

      • Take your pick of comfortable hotels close to St Lucia Hewanorra Airport. Check in and kick back at one of these after your flight to Castries:

      • Eager to hit the road without delay? Pick up a car rental at UVF with leading suppliers like Drive A Matic, Sixt and Final Rentals. Buckle up and get ready to explore Castries and beyond.

      • St Lucia Hewanorra Airport serves Castries and nearby areas in Castries Quarter, Saint Lucia.

      Castries highlights

      • Jump off your flight to Castries and find your way to these must-see attractions:

        • Vigie Beach: Around 2 kilometres northeast of the centre in Vigie, this landmark is a memorable introduction to what the city has to offer.

        • Morne Fortune: Looking for more reasons to visit Castries? This landmark pulls in the crowds and is about 0.16 kilometres west of the city centre.

      Explore more of Saint Lucia

      • There are plenty more places you'll want to see in Saint Lucia, starting with Vieux Fort. Anse Des Sables Beach, Sandy Beach and Maria Islands Nature Reserve are must-visits in this city, which is around 27 kilometres south of Castries.

      • Add one more stop to the mix with Soufrière. Roughly 18 kilometres south of Castries, Hike Gros Piton, Diamond Falls Botanical Gardens & Mineral Baths and Piton Falls are reasons to go.

      Complete your trip with a Castries car rental

      • Thinking of renting a car in the city? Browse the car rentals in Castries and get behind the wheel when you're ready. Easily compare rates in one place to find the perfect vehicle after booking your hotel and cheap flight to Castries.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.