$209 Cheap Flights from Castries to Boston (SLU to BOS)

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Cheap flight deals from Castries to Boston Starting at $209

Whether you’re going for a one-way or round-trip to Boston, we’ve got you covered! Check out these different flight options from Castries below.

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

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

These price trend charts carefully monitor and predict how flight prices from Castries to Boston will change. Keep a close eye on them to understand when the best time to buy your tickets is.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find cheap airlines flights from Castries to Boston

Which airline provides the cheapest flights from Castries to Boston? Discover the option that best suits your travel needs before embarking on your journey.

Jetblue Airways

From $209

United Airlines

From $223

Delta Air Lines

From $231

American Airlines

From $248

Air Canada

From $292

WestJet

From $318

Caribbean Airlines

From $403

Winair

From $491

InterCaribbean Airways

From $512

British Airways

From $547

Find more flights and airlines

Alternative Cheap Routes from Castries to Boston

Did you know that you can save money and time on an alternative route from Castries to Boston? Check out some of the different available routes below.

Cheapest
UVF
16:51
5h 2m
Nonstop
BOS
20:53
Hewanorra Airport - General Edward Lawrence Logan International Airport
Sat, Nov 16Jetblue Airways
$209
SLU
10:25
22h 2m
2 transfer
BOS
07:27
George F. L. Charles Airport - General Edward Lawrence Logan International Airport
Wed, Jan 15Caribbean Airlines
$403
SLU
10:25
22h 2m
2 transfer
BOS
07:27
George F. L. Charles Airport - General Edward Lawrence Logan International Airport
Wed, Jan 15Caribbean Airlines
$403
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Frequently Asked Questions

When are flight tickets from Castries (SLU) to Boston (BOS) the cheapest?
Airlines adjust prices for flights from Castries to Boston based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from Castries (SLU) to Boston (BOS) cost?
According to Trip.com's data, the lowest price is around $431.
How long does it take to fly from Castries (SLU) to Boston (BOS) and what is the distance?
It takes around 5 hours 12 minutes to fly from Castries (SLU) to Boston (BOS).
What are the most popular airlines that fly from Castries (SLU) to Boston (BOS)?
Airlines with flights from Castries (SLU) to Boston (BOS): Qatar Airways and Jetblue Airways.

How to find a cheap flight from Castries to Boston

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

Flight Info | Castries to Boston

Cheapest nonstop flight price	$208
Cheapest round-trip ticket price	$296
Off-season for travel	November
Peak season for travel	August
Flight distance	3,295.52 km
Average flight time	5 hours 12 minutes
Popular airline	Jetblue Airways