HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

$697+ Cheap flights from Boston (BOS) to Castries (SLU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SLU
Oct 7 — Oct 141
From?
To?
Mon 10/7
Mon 10/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Castries with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Boston to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Castries (SLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 2, 2024.

Popular in

December

Cheapest in

September

Average price

$636

Round-trip from

$697
(Mytrip)
High demand for flights, 22% potential price rise
Search Deals
Best time to find cheap flights, 22% potential price drop
Search Deals
Average for round-trip flights in October 2024
Search Deals
From Boston Logan Intl to Castries George F. L. Charle
Search Deals

Cheap Boston to Castries flights in October & November 2024

Find cheap flight options from Boston to Castries specifically for the months of October and November 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,666,977 searches. Prices were last updated on October 2, 2024.
This Mytrip deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/174:17 pmBOS - SLU
3 stops22h 33mMultiple Airlines
Sat 11/2311:30 amSLU - BOS
3 stops32h 59mMultiple Airlines
Deal found 10/1$890

Boston to Castries 2024 flight deals

Discover exclusive flight deals for travel between Boston and Castries in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,666,977 searches. Data last updated October 2, 2024.
This Mytrip deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/174:17 pmBOS - SLU
3 stops22h 33mMultiple Airlines
Sat 11/2311:30 amSLU - BOS
3 stops32h 59mMultiple Airlines
Deal found 10/1$890

Boston to Castries flights leaving soon

Find last-minute flight options from Boston to Castries for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,666,977 searches. Data last updated October 2, 2024.
This Mytrip deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/99:14 amBOS - SLU
3 stops26h 46mMultiple Airlines
Sun 10/135:00 amSLU - BOS
3 stops27h 37mMultiple Airlines
Deal found 10/1$1,045
This Mytrip deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/99:14 amBOS - SLU
3 stops26h 46mMultiple Airlines
Sun 10/1312:10 pmSLU - BOS
2 stops21h 09mMultiple Airlines
Deal found 10/1$1,119
This Orbitz deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/96:00 amBOS - SLU
2 stops30h 00mMultiple Airlines
Sun 10/135:00 amSLU - BOS
2 stops17h 39mMultiple Airlines
Deal found 10/1$3,651

Find flights from Boston to Castries within your budget

Customize your flight search to find flights from Boston to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,666,977 searches. Data last updated October 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$697 - $697

Route

Depart

Return

Price

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

Wed 1/22

3 stops23h 54m

Castries George F. L. Charle

Wed 1/29

3 stops29h 00m

$697

Flights are sorted by cheapest first

Deals found on 10/1

Best time to book a flight from Boston to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Boston to Castries

Get recent, data-driven insights about flights from Boston to Castries including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Boston to Castries?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Castries. Price data was last updated on September 27, 2024.

To ensure you get the cheapest price possible for a flight from Boston to Castries, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Find deals

What is the cheapest month to book a flight from Boston to Castries?

Currently, September is the cheapest month in which you can book a flight from Boston to Castries (average of $402). Flying from Boston to Castries in July is currently the most expensive (average of $521). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to SLU?

Find hourly flight availability from Boston to Castries. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 2, 2024.

It’s optimal to fly from Boston to Castries in the evening. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight at noon.

Related info for your journey

Find useful and relevant information for your journey from Boston to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Boston to Castries for under $700 on Cheapflights?

    Yes, there are multiple flights from Boston to Castries for under $700. The cheapest flight booked recently is on Multiple Airlines for just $697, but on average you can expect to pay $697.

  • Are there last-minute flights available from Boston to Castries for under $1,100?

    There are currently 3+ open flights from Boston to Castries within the next 7 days for less than $1,100.

  • What does BOS to SLU mean?

    Boston Logan Intl Airport is BOS and Castries George F. L. Charle Airport is SLU. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Boston to Castries that include extra baggage allowance?

    The amount of baggage you can bring on your Boston to Castries flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Boston to Castries with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boston to Castries flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Boston to Castries that include hotel bookings?

    Yes. In addition to deals on Boston to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Castries?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Castries.

  • Can I find deals for business class flights from Boston to Castries?

    Yes. Cheapflights offers flight deals from Boston to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Boston to Castries that allow pets onboard?

    Many airlines flying from Boston to Castries offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Boston to Castries?

    Yes, you can often find last-minute deals on Boston to Castries flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Boston to Castries flight deals updated?

    The Boston to Castries flight deals you see on this page were last updated on 10/1.

  • What is the cheapest month to book a flight from Boston to Castries?

    Currently, September is the cheapest month in which you can book a flight from Boston to Castries (average of $402). Flying from Boston to Castries in July is currently the most expensive (average of $521). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Castries
See prices for flight routes from nearby airports that may be better suited for you.

Boston to Castries flights
Hartford to Castries flights
Albany to Castries flights

Top 2 airlines flying from Boston to Castries

Discover the top 2 airlines that operate flights from Boston to Castries. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,666,977 searches. Data last updated October 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$410Average$683FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$476Average$775FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines