£317 Cheap Flights from Boston Logan International (BOS) to Castries (SLUA)

Q: How many airports are there in Castries?

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.

Q: How much are return flights from Boston Logan International to Castries?

The best price we found for a return flight from Boston Logan International to Castries is £317. 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.

Q: How long does it take to fly from Boston Logan International to Castries?

4 hours and 45 minutes is the average flight time from Boston Logan International to Castries.

Q: Which airlines fly direct from Boston Logan International to Castries?

jetBlue flies direct from Boston Logan International to Castries.

Q: How many flights are there a week from Boston Logan International to Castries?

As of June 2025, there are 2 flights per week flying from Boston Logan International to Castries.

Q: When is the cheapest time to fly from Boston Logan International to Castries?

The cheapest month to fly from Boston Logan International to Castries is usually June 2025.

Q: Which is the cheapest airport to fly into in Castries?

If you're flying from Boston Logan 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 £317 .

Q: Which upcoming date is cheapest to fly from Boston Logan International Airport to Castries on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to Castries on Friday, 1 August 2025 .

Q: Can I get a direct flight from Boston Logan International Airport to Castries?

Yes – the average flight time is 4 hours and 45 minutes.

Q: How can I get the best flight deal from Boston Logan International Airport to Castries?

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.

Compare Boston Logan International to Castries flight deals

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Flight deals from Boston Logan International to Castries

Looking for a cheap last-minute deal or the best return flight from Boston Logan International to Castries? Find the lowest prices on one-way and return tickets right here.

Castries.£317 per passenger.Departing Fri, 1 Aug, returning Tue, 12 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Boston Logan International on Fri, 1 Aug, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Tue, 12 Aug, arriving in Boston Logan International.Price includes taxes and charges.From £317, select.

Castries.£318 per passenger.Departing Tue, 1 Jul, returning Tue, 8 Jul.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Boston Logan International on Tue, 1 Jul, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Tue, 8 Jul, arriving in Boston Logan International.Price includes taxes and charges.From £318, select.

Castries.£360 per passenger.Departing Thu, 18 Sep, returning Mon, 22 Sep.Return flight with Air Canada and jetBlue.Outbound indirect flight with Air Canada, departs from Boston Logan International on Thu, 18 Sep, arriving in St Lucia Hewanorra.Inbound indirect flight with jetBlue, departs from St Lucia Hewanorra on Mon, 22 Sep, arriving in Boston Logan International.Price includes taxes and charges.From £360, select.

Castries.£362 per passenger.Departing Wed, 30 Jul, returning Wed, 13 Aug.Return flight with jetBlue.Outbound indirect flight with jetBlue, departs from Boston Logan International on Wed, 30 Jul, arriving in St Lucia Hewanorra.Inbound indirect flight with jetBlue, departs from St Lucia Hewanorra on Wed, 13 Aug, arriving in Boston Logan International.Price includes taxes and charges.From £362, select.

Castries.£385 per passenger.Departing Wed, 31 Dec, returning Wed, 7 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Wed, 31 Dec, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 7 Jan, arriving in Boston Logan International.Price includes taxes and charges.From £385, select.

Castries.£409 per passenger.Departing Sun, 23 Nov, returning Fri, 28 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Boston Logan International on Sun, 23 Nov, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Fri, 28 Nov, arriving in Boston Logan International.Price includes taxes and charges.From £409, select.

Castries.£418 per passenger.Departing Wed, 3 Dec, returning Wed, 10 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Boston Logan International on Wed, 3 Dec, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Wed, 10 Dec, arriving in Boston Logan International.Price includes taxes and charges.From £418, select.

Castries.£435 per passenger.Departing Sun, 1 Feb, returning Sun, 8 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Sun, 1 Feb, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Sun, 8 Feb, arriving in Boston Logan International.Price includes taxes and charges.From £435, select.

Find the cheapest month to fly from Boston Logan International to Castries

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

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Direct flights from Boston Logan International to Castries

Alternative Boston Logan International to Castries routes

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

Boston to Castries: Flight information

The things to know before you go.

Cheapest flight found	£317
Cheapest month to fly	August
Average flight time	4 hrs, 45 mins
Most popular airline	jetBlue
Average flights per week	2

Finding cheap flights from Boston Logan International to Castries: Frequently asked questions

How many airports are there in Castries?

How much are return flights from Boston Logan International to Castries?

How long does it take to fly from Boston Logan International to Castries?

Which airlines fly direct from Boston Logan International to Castries?

How many flights are there a week from Boston Logan International to Castries?

When is the cheapest time to fly from Boston Logan International to Castries?

Which is the cheapest airport to fly into in Castries?

Which upcoming date is cheapest to fly from Boston Logan International Airport to Castries on?

Can I get a direct flight from Boston Logan International Airport to Castries?

How can I get the best flight deal from Boston Logan International Airport to Castries?

When is the best time to book flights to Castries?

What’s the weather like in Castries?

Which is the cheapest airline to fly from Boston Logan International Airport to Castries with?

Flying from Logan International Airport (BOS) to Castries: what you need to know

Boston (the location of Logan International Airport) and Castries follow the same timezone — UTC-4.
For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to catch your BOS to Castries flight.
Delays at security and check-in are more likely if you're heading away during high season, so give yourself a little extra breathing room. A good rule for peak times? Arrive up to four hours early for international flights and at least two hours for domestic departures.
Start your trip at BOS and fly nonstop to Hewanorra Airport (UVF). That's where you can expect to touch down when searching for Logan International Airport to Castries tickets.
Keep an eye out for offers from JetBlue Airways. This carrier has direct flights from Logan International Airport to Castries.
A stopover is the perfect opportunity to break up your trip and possibly even visit a new city. When searching for plane tickets from BOS to Castries, deselect the 'Direct flights only' box to see where you can stop along the way. Some popular options include:
- John F. Kennedy International Airport (JFK)
- Newark Liberty International Airport (EWR)
- Pearson International Airport (YYZ)
BOS is around 2 miles from central Boston. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 10 minutes or so to get there, depending on traffic conditions. If you're planning to take public transport, expect the trip time to be around 25 minutes.
Planning to catch an early flight from Logan International Airport to Castries? Avoid the last-minute rush to the airport (and get some extra shut-eye) by choosing one of these hotels near BOS:
When it comes to Logan International Airport's on-time performance, data shows 73.94% of flights arrive within the expected time frame.
BOS's address is One Harborside Drive.

How to find the cheapest flights from Logan International Airport (BOS) to Castries

£105 is currently the lowest price for a one-way Logan International Airport to Castries flight. A return plane ticket starts at £317. These fares can change depending on demand.
Get cheap flights from BOS to Castries by booking ten months ahead. According to our research, that's the sweet spot for bagging a bargain.
The best month for scoring cheap Logan International Airport to Castries tickets is February. Use the 'Whole month' tool to compare all available prices, then choose the dates that offer the biggest savings.
Locking in a cheap flight from BOS to Castries couldn't be easier with Price Alerts. Simply create one of these automatic notifications and we'll get in touch as soon as a lower fare pops up.
Find an affordable flight from Logan International Airport to Castries with the help of our filters. Select your ideal departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in Castries

George F. L. Charles Airport (SLU)

George F. L. Charles Airport (SLU) is around 2 miles from the centre of Castries. If you're catching a cab or a ride-share, the drive takes about 5 minutes.
If you're taking public transport, expect a journey time of around 40 minutes.
Consider staying in a hotel close to SLU if you have a late flight from Logan International Airport to Castries. Choose one of these accommodation options and skip the long transfer:
Pick up a George F. L. Charles Airport rental car and discover Castries and beyond with your own wheels. Drive A Matic, Final Rentals and Sixt are well-known companies you can book with here.
Booking your vehicle from George F. L. Charles Airport about one week in advance of your flight from BOS to Castries can help you lock in the lowest rate.

Hewanorra Airport (UVF)

The centre of Castries is around 35 miles from Hewanorra Airport (UVF). After your flight from Logan International Airport to Castries has hit the runway and you've made your way to arrivals, expect a drive of about 1 hour 10 minutes.
Place the 'Do not disturb' sign on your door and unwind at a hotel near UVF. Here are a few options where you can settle in after your BOS to Castries flight:
No time to waste? The fastest way to get to where you're going is with a Hewanorra Airport rental car. Grab your wheels from Drive A Matic, Sixt or Final Rentals and get going in the blink of an eye.
Get the lowest price by booking your ride from UVF one week ahead of time. You'll also have access to a greater range of vehicles.

Best time to go to Castries

Carefully consider your travel dates before booking your flight from Logan International Airport to Castries. The city buzzes in peak season, but hotel prices are often higher and top attractions can be crowded. Plan your trip to Castries in the off-season if you want a quieter vibe.
Lock in a Logan International Airport to Castries plane ticket with a departure in September to visit the city during its warmest month. Expect temperatures to range from 26ºC (79ºF) to 30ºC (86ºF).
If you like travelling in cooler conditions, look for a cheap ticket from BOS to Castries in February when temperatures average between 24ºC (75ºF) and 28ºC (82ºF).

More about Castries

After booking your flight from Logan International Airport to Castries, find a hotel that keeps you close to what you want to see. Make one of these accommodation options your base for exploring Castries:
There are so many things to explore in this city it can be hard to know where to start. Morne Fortune, Derek Walcott Square and Immaculate Conception Church are top attractions which should feature on every Castries itinerary.