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Find cheap one-way flights from Castries to Boston starting at €219.

Discover our range of affordable one-way and round-trip flights from Castries to Boston and kick-start your next adventure today!

  • One way
  • Round-trip
      • Cheapest nonstop
        UVF14:00
        5h 16m
        Nonstop
        BOS18:16
        Sun, Jan 26|Castries - Boston|Jetblue Airways
        €224€289
        23% OFF
        23% OFF
        €289€224

        Choose Jetblue Airways flights from Castries to Boston.The one-way direct flight with Jetblue Airways departs from Hewanorra Airport on Sun, Jan 26, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €224 including taxes and charges.

      • UVF14:00
        5h 16m
        Nonstop
        BOS18:16
        Sun, Jan 19|Castries - Boston|Jetblue Airways
        €235€289
        19% OFF
        19% OFF
        €289€235

        Choose Jetblue Airways flights from Castries to Boston.The one-way direct flight with Jetblue Airways departs from Hewanorra Airport on Sun, Jan 19, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €235 including taxes and charges.

      • UVF14:00
        5h 16m
        Nonstop
        BOS18:16
        Sun, Jan 12|Castries - Boston|Jetblue Airways
        €235€289
        19% OFF
        19% OFF
        €289€235

        Choose Jetblue Airways flights from Castries to Boston.The one-way direct flight with Jetblue Airways departs from Hewanorra Airport on Sun, Jan 12, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €235 including taxes and charges.

      • UVF14:00
        5h 16m
        Nonstop
        BOS18:16
        Sun, Feb 9|Castries - Boston|Jetblue Airways
        €235
        €235

        Choose Jetblue Airways flights from Castries to Boston.The one-way direct flight with Jetblue Airways departs from Hewanorra Airport on Sun, Feb 9, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €235 including taxes and charges.

      • UVF15:56
        5h 9m
        Nonstop
        BOS20:05
        Sat, Jan 18|Castries - Boston|Jetblue Airways
        €239
        €239

        Choose Jetblue Airways flights from Castries to Boston.The one-way direct flight with Jetblue Airways departs from Hewanorra Airport on Sat, Jan 18, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €239 including taxes and charges.

      • UVF16:50
        9h 10m
        1 stop
        BOS01:00
        Mon, Jan 13|Castries - Boston|Delta Air Lines
        €219
        €219

        Choose Delta Air Lines flights from Castries to Boston.The one-way connecting flight with Delta Air Lines departs from Hewanorra Airport on Mon, Jan 13, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €219 including taxes and charges.

      • UVF17:17
        17h 33m
        1 stop
        BOS09:50
        Sat, Mar 1|Castries - Boston|United Airlines
        €232
        €232

        Choose United Airlines flights from Castries to Boston.The one-way connecting flight with United Airlines departs from Hewanorra Airport on Sat, Mar 1, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €232 including taxes and charges.

      • UVF15:30
        21h 5m
        1 stop
        BOS11:35
        Mon, Jan 13|Castries - Boston|American Airlines
        €239
        €239

        Choose American Airlines flights from Castries to Boston.The one-way connecting flight with American Airlines departs from Hewanorra Airport on Mon, Jan 13, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €239 including taxes and charges.

      • UVF17:17
        15h 56m
        1 stop
        BOS08:13
        Sat, Feb 8|Castries - Boston|United Airlines
        €240
        €240

        Choose United Airlines flights from Castries to Boston.The one-way connecting flight with United Airlines departs from Hewanorra Airport on Sat, Feb 8, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €240 including taxes and charges.

      • UVF17:17
        16h 26m
        1 stop
        BOS08:43
        Wed, Feb 19|Castries - Boston|United Airlines
        €240
        €240

        Choose United Airlines flights from Castries to Boston.The one-way connecting flight with United Airlines departs from Hewanorra Airport on Wed, Feb 19, arriving at General Edward Lawrence Logan International Airport.One-way Prices start from €240 including taxes and charges.

      • SLU01:00 pm
        3h 5m
        Nonstop
        BOS02:00 pm
        Mon, Jan 6|Castries - Boston|Jetblue Airways
        Find More Flights
        Find More Flights

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

When is the cheapest time to book flights from Castries to Boston?

Explore the best time to buy affordable tickets to Boston with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.

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

Cheapest airlines flights from Castries to Boston

We have a range of prices from different airlines providing flights from Castries to Boston. Check below for the journey which best suits your travel needs.

Delta Air Lines
From €219
Jetblue Airways
From €224
United Airlines
From €232
American Airlines
From €239
Air Canada
From €341
WestJet
From €361
Caribbean Airlines
From €383
Winair
From €515
British Airways
From €2,218

Find more flights and airlines

Find cheap flights from Castries to Boston by different airports

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
    Delta Air Lines
    UVF
    16:50
    9h 10m
    1 transfer
    BOS
    01:00
    Hewanorra Airport - General Edward Lawrence Logan International Airport
    Mon, Jan 13Delta Air Lines
    €219
  • Caribbean Airlines
    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
    €383
  • Caribbean Airlines
    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
    €383
    Find More Flights

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 €409.

  • How long does it take to fly from Castries (SLU) to Boston (BOS) and what is the distance?

    It takes around 5 hours 16 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 don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Castries to Boston Flight Information

Cheapest nonstop flight price€219
Cheapest round-trip ticket price€442
Off-season for travelNovember
Peak season for travelMarch
Flight distance3,295.52 km
Average flight time5 hours 16 minutes
Popular airlineJetblue Airways

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