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Cheap flights from Boston (BOS) to Castries (SLU) from $538

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BOS — SLU
may. 21 — may. 281
From?
To?
mar. 5/21
mar. 5/28
1 adult, Economy
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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 mayo 16, 2024.

Popular in

August

Cheapest in

September

Round-trip from

$602

One-way from

$538
High demand for flights, 21% potential price rise
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Best time to find cheap flights, 25% potential price drop
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From Boston Logan Intl to Castries George F. L. Charle
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One-way flight from Boston Logan Intl to Castries George F. L. Charle
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What is the cheapest day to fly round-trip from Boston to Castries?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 39%.

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

To save up to 67% on this flight, we recommend booking at least 19 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Boston to Castries from $430 1-2 weeks out and tickets from $658 for flights departing within the next 72 hours.

What is the cheapest month to fly from Boston to Castries?

The best pricing can be found in the month of September. Prices to Castries from Boston average $826. You can even find prices in September for less than $826, as users have found deals to Castries from as low as $525. The month of August appears to be one of the more expensive times to travel to Castries from Boston. Flying in the targeted month can save you up to 26%.

When is the cheapest time to fly from Boston to Castries (BOS - SLU)?

It’s optimal to fly from Boston to Castries in the afternoon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight at noon.

Cheap Boston to Castries flights in May & June 2024

Find cheap flight options from Boston to Castries specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on mayo 16, 2024.
vie. 6/147:40 pmBOS - SLU
2 stops23h 20mMultiple Airlines
lun. 6/179:25 amSLU - BOS
3 stops29h 00mMultiple Airlines
Deal found 5/15$1,051
vie. 6/149:19 pmBOS - SLU
3 stops24h 51mMultiple Airlines
lun. 6/179:25 amSLU - BOS
3 stops29h 00mMultiple Airlines
Deal found 5/15$1,055
vie. 6/147:40 pmBOS - SLU
2 stops23h 20mMultiple Airlines
lun. 6/174:35 pmSLU - BOS
2 stops46h 34mMultiple Airlines
Deal found 5/15$1,584

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 2,637,452 searches. Data last updated mayo 16, 2024.
vie. 6/147:40 pmBOS - SLU
2 stops23h 20mMultiple Airlines
lun. 6/179:25 amSLU - BOS
3 stops29h 00mMultiple Airlines
Deal found 5/15$1,051
vie. 6/149:19 pmBOS - SLU
3 stops24h 51mMultiple Airlines
lun. 6/179:25 amSLU - BOS
3 stops29h 00mMultiple Airlines
Deal found 5/15$1,055
sáb. 11/234:55 pmBOS - SLU
2 stops17h 50mMultiple Airlines
mié. 11/2710:25 amSLU - BOS
3 stops30h 34mMultiple Airlines
Deal found 5/16$1,490
vie. 6/147:40 pmBOS - SLU
2 stops23h 20mMultiple Airlines
lun. 6/174:35 pmSLU - BOS
2 stops46h 34mMultiple Airlines
Deal found 5/15$1,584
mar. 7/166:50 pmBOS - SLU
2 stops21h 05mMultiple Airlines
sáb. 7/209:25 amSLU - BOS
3 stops28h 59mMultiple Airlines
Deal found 5/16$1,681
sáb. 11/236:00 amBOS - SLU
2 stops28h 45mMultiple Airlines
mié. 11/2710:25 amSLU - BOS
2 stops13h 09mMultiple Airlines
Deal found 5/16$1,706
jue. 8/86:05 amBOS - SLU
3 stops29h 25mMultiple Airlines
dom. 8/1112:30 pmSLU - BOS
3 stops34h 09mMultiple Airlines
Deal found 5/16$1,721
jue. 10/176:05 amBOS - SLU
3 stops29h 25mMultiple Airlines
lun. 10/214:35 pmSLU - BOS
2 stops40h 54mMultiple Airlines
Deal found 5/15$1,750
jue. 7/114:05 pmBOS - SLU
2 stops19h 25mMultiple Airlines
dom. 7/1412:30 pmSLU - BOS
2 stops20h 59mMultiple Airlines
Deal found 5/15$1,822

One-way flights to Castries from Boston

Search for one-way flight options from Boston to Castries. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
jue. 7/2510:55 pmBOS - SLU
2 stops34h 00mMultiple Airlines
Deal found 5/16$538
jue. 7/253:55 pmBOS - SLU
3 stops27h 05mMultiple Airlines
Deal found 5/16$564

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 2,637,452 searches. Data last updated mayo 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,051 - $2,183

Route

Depart

Return

Price

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

vie. 6/14

2 stops23h 20m

Castries George F. L. Charle

lun. 6/17

3 stops29h 00m

$1,051

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

vie. 6/14

3 stops24h 51m

Castries George F. L. Charle

lun. 6/17

3 stops29h 00m

$1,055

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

vie. 6/14

2 stops23h 20m

Castries George F. L. Charle

lun. 6/17

2 stops46h 34m

$1,584

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

mar. 7/16

2 stops21h 05m

Castries George F. L. Charle

sáb. 7/20

3 stops28h 59m

$1,681

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

jue. 10/17

3 stops29h 25m

Castries George F. L. Charle

lun. 10/21

2 stops40h 54m

$1,750

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

jue. 7/11

2 stops19h 25m

Castries George F. L. Charle

dom. 7/14

2 stops20h 59m

$1,822

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

vie. 10/11

3 stops43h 40m

Castries George F. L. Charle

lun. 10/14

2 stops40h 54m

$2,064

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

jue. 10/17

2 stops25h 10m

Castries George F. L. Charle

lun. 10/21

2 stops40h 54m

$2,151

Boston Logan IntlCastries George F. L. Charle

BOS - SLU

BOSSLU

Boston Logan Intl

jue. 10/17

2 stops25h 10m

Castries George F. L. Charle

dom. 10/20

2 stops20h 59m

$2,183

Flights are sorted by cheapest first

Deals found on 5/15

When is the best time to 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 May 10, 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.
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When is the cheapest time to fly from Boston to Castries?

Use this chart to determine the cheapest time to fly round-trip from Boston to Castries. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boston to Castries flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Castries by month

Plan your trip from Boston to Castries by taking into account the cheapest months to travel. The average price of a one-way flight from Boston to Castries is currently $551 while a round-trip flight costs $1,705. Price data was last updated on May 12, 2024.

Currently, January is the cheapest month in which you can book a flight from Boston to Castries (average of $602). Flying from Boston to Castries in July is currently the most expensive (average of $848). 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.

January

$602

February

$709

March

$756

April

$700

May

$633

June

$753

July

$848

August

$771

September

$687

October

$777

November

$626

December

$716

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 $1,100 on Cheapflights?

    Yes, there are multiple flights from Boston to Castries for under $1,100. The cheapest flight booked recently is on Multiple Airlines for just $1,051, but on average you can expect to pay $1,704.

  • What are the most popular airlines that fly from Boston to Castries?

    When booking a flight from Boston to Castries, you may want to consider flying on American Airlines, JetBlue or Linear Air Taxi as they are the most popular for this route.

  • 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 5/16.

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

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Top 3 airlines flying from Boston to Castries

Discover the top 3 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 2,637,452 searches. Data last updated mayo 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$410Average$718FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest$487Average$885FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Linear Air TaxiCheapest$42,471Average$84,934FlexibilityNo cancel feeOn-timeN/A
Search Linear Air Taxi flights
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Search flights from Boston to Castries by cabin class

Find flights from Boston to Castries, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Castries?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to Castries. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Boston to Castries?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Castries from Boston.

Can Cheapflights find flights from Boston to Castries with no change fees?

Certainly. Search results for flights to Castries from Boston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Boston to Castries become cheaper?

Yes! Start tracking prices for Boston to Castries flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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