Cheap flights from Boston to Castries

Logan
BOS
George F. L. Charles
SLU

Flight deals from Boston to Castries

Below you can see the best deals on flights Boston — Castries for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 12 October, from $156.

Top 10 cheap flights from Boston to Castries

About the Boston — Castries flight

Looking for cheap flights from Boston to Castries? Compare fares from different airlines, check the flight schedule and travel time — and book your Boston — Castries ticket online at the best price.

The route has direct flights — around 4 flights per week, flights are operated by JetBlue, a nonstop flight takes about 8 h 40 min, the distance between the cities is around 3,288 km.

Planning your trip? You may find our Castries travel guide, how to get from the airport into town and Castries weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $156Min. price
OctoberCheapest
OctoberPeak season
YesDirect flights
3,288 kmDistance
8 h 40 minTravel time
1Airlines
4 / wkFlights

Flight ticket prices by day: Boston — Castries

Below is a calendar of the lowest flight ticket prices for Boston — Castries by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $156 in October, and the most expensive are around $156 in October. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--

Prices by month

Average one-way fares from Boston to Castries by month. Tickets are usually cheapest in September (around $287) and priciest in December (about $463) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$397mediumMay$309lowSep$287low
Feb$419highJun$353mediumOct$287low
Mar$419highJul$364highNov$309low
Apr$375mediumAug$342mediumDec$463high

Some values are estimated based on seasonality.

When to fly

Weather in Castries: it is warmest in September (up to 29 °C on average) and coolest in January (around 27 °C). The driest month is March.

Tickets are usually cheapest in October and most expensive in October. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Castries

Dry and wet days · Castries

Wind speed and direction · Castries

We'll let you know if you need a visa

Enter your destination or
Your nationality
Destination

How to get the best deal on a Boston — Castries ticket

  • Book ahead: fares for Boston — Castries are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • The cheapest month to fly to Castries is usually October — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Boston — Castries route are operated by 1 airline; JetBlue runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • JetBlueB6
    1x/week
    WebsiteFleet: 30742.5M pax/year
    • Direct flight BOS → UVF1x/week
    100.0%Open →

Cities and airports on the Boston — Castries route

Flights Boston — Castries depart from Logan International Airport and arrive at Hewanorra Airport and George F. L. Charles Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Boston

BOS
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Castries

SLU
Saint Lucia
About the cityHow to get thereWeatherAll about the country Saint Lucia
Departure airports
Arrival airports

Interesting articles about Castries

Best Caribbean Islands to Visit in 2026Travel Ideas

Best Caribbean Islands to Visit in 2026

The Caribbean in 2026 is the world’s main ‘decompression zone’. While the rest of the world rushes somewhere, here time stands still between the third and fourth rum cocktail. Choosing ‘your’ island i…

Aerial Journey: Europe’s Best Cable CarsTips for Travelers

Aerial Journey: Europe’s Best Cable Cars

Hey guys! How about the idea of seeing a city from above? But not just from an observation deck, battling the wind-hairdresser and endless tourists with selfie sticks, but in more comfortable conditio…

Flying to Mauritius: when is the season and what to seeWhere to go

Flying to Mauritius: when is the season and what to see

Mauritius is a wonderful country to walk through places where the Dodo bird lived (yes, the one from the legendary pizza box), try diving to explore one of the largest coral reefs, and visit the oldes…

The Most Dangerous Areas in the World: Where Tourists Should Not GoTips for Travelers

The Most Dangerous Areas in the World: Where Tourists Should Not Go

The world is too vast to limit oneself to “all-inclusive” hotels, but sometimes the thirst for adventure leads travelers to places where travel insurance turns into a useless piece of paper. There are…

Will they let you on a plane with a cast?Tips for Travelers

Will they let you on a plane with a cast?

Nowadays, even when going out for bread, you have to be extra careful. It’s slippery in winter and spring, and in summer and early autumn, our enemies are racers on skateboards, rollerblades, bicycles…

Follow the Blue Flag: The Cleanest and Most Beautiful BeachesTravel Ideas

Follow the Blue Flag: The Cleanest and Most Beautiful Beaches

Not all beaches are created equal; some are noticeably better than others. And the best of the best are beaches marked with a “Blue Flag”. What kind of flag is this, who awards it, for what, and to wh…

Frequently asked questions about the Boston — Castries flight

How long is the flight from Boston to Castries?

A nonstop Boston — Castries flight takes about 8 h 40 min — the distance between the cities is around 3,288 km.

How far is it from Boston to Castries?

The distance from Boston to Castries is about 3,288 km, which a nonstop flight covers in around 8 h 40 min.

Are there direct flights from Boston to Castries?

Yes, there are nonstop flights Boston — Castries — around 4 flights per week.

Which airlines fly from Boston to Castries?

Airlines operating Boston — Castries include JetBlue. See the full list with schedules in the "Airlines" section on this page.

Which airports do Boston — Castries flights use?

Flights from Boston depart from Logan International Airport, and arrive at Hewanorra Airport, George F. L. Charles Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Boston to Castries?

The price of a Boston — Castries ticket depends on your travel date, season and demand: it is usually cheapest to fly in October, and most expensive in October. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Boston — Castries?

Flights Boston — Castries are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is October. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Boston to Castries?

To catch a low fare Boston — Castries, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually October.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Boston

See all
New York CityWashington, D.C.ChicagoTorontoSan FranciscoAtlantaSeattleLos AngelesPhiladelphiaNantucketLondonDallasOrlandoDenverFort LauderdaleDetroitCharlotteRaleighMontrealNashvilleMarthas VineyardMinneapolisMiamiSan DiegoBuffaloPhoenixMadridTampaPittsburghClevelandBarcelonaIndianapolisSan JuanHoustonDublinParisLas VegasAustinRichmondCincinnati

Where else you can fly from Castries

See all
BridgetownNew York CityMiamiFort-de-FranceCharlotteAtlantaTorontoLondonChicagoGeorgetownPhilipsburgPhiladelphiaSt. George'sParisMadrid

We use cookies and services to collect user information. This is essential for the functioning of the site and for marketing purposes. You can find out more in .