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Cheap Flights from Boston to Castries starting at S$ 212

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip

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

Cheapest time to fly from Boston to Castries

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.
Cheapest Airlines flying from Boston to Castries

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Jetblue Airways
From S$ 212
United Airlines
From S$ 257
American Airlines
From S$ 262
Lynx Air
From S$ 336
Frontier Airlines
From S$ 364
Copa Airlines
From S$ 395
Porter Airlines
From S$ 406
Air Canada
From S$ 442
Delta Air Lines
From S$ 548
Virgin Atlantic
From S$ 779
ANA airlines

Find more flights and airlines

Alternative Routes from Boston to Castries

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Boston to Castries.

  • Cheapest
    Jetblue Airways
    BOS
    06:56
    4h 52m
    Direct
    UVF
    11:48
    General Edward Lawrence Logan International Airport - Hewanorra Airport
    Wed, Apr 10Jetblue Airways
    S$ 212
  • Copa Airlines
    BOS
    15:36
    19h 54m
    2 transfer
    SLU
    11:30
    General Edward Lawrence Logan International Airport - George F. L. Charles Airport
    Thu, May 2Copa Airlines
    S$ 395
  • Copa Airlines
    BOS
    15:36
    19h 54m
    2 transfer
    SLU
    11:30
    General Edward Lawrence Logan International Airport - George F. L. Charles Airport
    Thu, May 2Copa Airlines
    S$ 395
    Find More Flights

Frequently Asked Questions

  • When to buy flight tickets from Boston (BOS) to Castries (SLU) the cheapest?

    Airlines adjust prices for flights from Boston to Castries based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much is a flight from Boston (BOS) to Castries (SLU) cost?

    According to Trip.com's data, the lowest price is around S$ 944.
  • How long is a flight from Boston (BOS) to Castries (SLU)?

    It takes about 4 hours 59 minutes to fly from Boston (BOS) to Castries (SLU).
  • What is the transportation method from the main airport to downtown in Castries?

    • The distance from George F. L. Charles Airport to downtown is about 1km, by taxi about 20 minutes.
    • The distance from Hewanorra International Airport to downtown is about 30km, by taxi about 50 minutes.
  • What are the most popular airlines that fly from Boston (BOS) to Castries (SLU)?

    Airlines with flights from Boston (BOS) to Castries (SLU): Jetblue Airways.
  • What's the most popular airline for direct flights from Boston (BOS) to Castries (SLU)?

    Jetblue Airways operates 1 direct flights from Boston (BOS) to Castries (SLU).
  • How many airports in Castries?

    There are 2 airports near Castries: George F. L. Charles Airport and Hewanorra International Airport.

Find cheapest flight ticket from Boston to Castries

Cheapest direct flight price

S$ 211

Cheapest return ticket price

S$ 562

Cheapest month

March

Peak season for travel

October