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Cheap Flights from Baltimore Washington International to Castries

Compare Baltimore Washington International to Castries flight deals

Find the cheapest month or even day of the year to fly to Castries

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Flight deals from Baltimore Washington International to Castries

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International Airport to Castries? If you want to travel next month, return fares start from $1,039. Find the lowest prices on one-way and return tickets right here.
Castries.$887 per passenger.Departing Wed, 2 Sep, returning Wed, 9 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 2 Sep, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 9 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From $887, select.
Castries.$911 per passenger.Departing Sat, 13 Jun, returning Sat, 20 Jun.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Sat, 13 Jun, arriving in St Lucia Hewanorra.Inbound indirect flight with United, departs from St Lucia Hewanorra on Sat, 20 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From $911, select.
Castries.$914 per passenger.Departing Tue, 30 Jun, returning Fri, 10 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 30 Jun, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Fri, 10 Jul, arriving in Baltimore Washington International.Price includes taxes and charges.From $914, select.
Castries.$978 per passenger.Departing Mon, 17 Aug, returning Thu, 27 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Mon, 17 Aug, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Thu, 27 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From $978, select.
Castries.$1,007 per passenger.Departing Wed, 4 Nov, returning Wed, 11 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 4 Nov, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 11 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,007, select.
Castries.$1,014 per passenger.Departing Sun, 17 Jan, returning Sun, 24 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Sun, 17 Jan, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Sun, 24 Jan, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,014, select.
Castries.$1,039 per passenger.Departing Mon, 6 Jul, returning Fri, 10 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Mon, 6 Jul, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Fri, 10 Jul, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,039, select.
Castries.$1,152 per passenger.Departing Wed, 27 Jan, returning Wed, 3 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 27 Jan, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 3 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,152, select.
Castries.$1,152 per passenger.Departing Wed, 7 Oct, returning Wed, 14 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 7 Oct, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 14 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,152, select.
Castries.$1,238 per passenger.Departing Wed, 24 Feb, returning Mon, 1 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 24 Feb, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Mon, 1 Mar, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,238, select.
Castries.$1,256 per passenger.Departing Wed, 29 Jul, returning Wed, 5 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 29 Jul, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 5 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,256, select.
Castries.$1,256 per passenger.Departing Wed, 2 Dec, returning Wed, 9 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 2 Dec, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 9 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,256, select.
Castries.$1,262 per passenger.Departing Wed, 30 Sep, returning Tue, 6 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 30 Sep, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Tue, 6 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,262, select.
Castries.$1,273 per passenger.Departing Wed, 28 Oct, returning Wed, 4 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 28 Oct, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 4 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,273, select.
Castries.$1,273 per passenger.Departing Wed, 25 Nov, returning Wed, 2 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 25 Nov, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 2 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,273, select.
Castries.$1,289 per passenger.Departing Wed, 30 Dec, returning Fri, 8 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 30 Dec, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Fri, 8 Jan, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,289, select.

Find the cheapest month to fly from Baltimore Washington International to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to Castries flights are currently cheapest in September.
Jun
from $911
Jul
from $1,039
Aug
from $978
Sep
from $887
Oct
from $1,152
Nov
from $1,007
Dec
from $1,256
Jan
from $1,014
Feb
from $2,310
Mar
from $1,387
Apr
from $1,661
May
Find prices

Alternative Baltimore Washington International to Castries routes

Looking for the cheapest, fastest or easiest route from Baltimore Washington International to Castries? You could fly into the following airports instead.

St Lucia Vigie

1km from central Castries
Closest
Search flights

St Lucia Hewanorra

31km from central Castries
Cheapest
from $887
Search flights

Washington D.C. to Castries: Flight information

The things to know before you go.
Cheapest flight found$887
Cheapest month to flySeptember

Finding cheap flights from Baltimore Washington International to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a return flight from Baltimore Washington International to Castries is $887. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Baltimore Washington International to Castries. But we found flights with one or more stops from $887.
As of June 2026, there are no flights flying from Baltimore Washington International to Castries.
The cheapest month to fly from Baltimore Washington International to Castries is usually September.
If you're flying from Baltimore Washington International Airport, the cheapest airport near Castries is St Lucia Hewanorra – which is 30.5 km away from the centre of Castries. We've found flights into this airport from $887.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to Castries on Wednesday, 2 September 2026.
No airlines currently offer direct flights between Baltimore Washington International Airport and Castries. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Castries but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Castries is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 28°C. September is typically the warmest month in Castries, when it usually averages around 28°C. You can expect the least rain in February. The coldest month is February, with temperatures averaging 25°C. The rainiest month is October.
Currently, Delta offers the cheapest flight tickets to Castries.

Travelling from Baltimore Washington International Airport (BWI) to Castries: what you need to know

  • Baltimore Washington International Airport is located in Washington DC. Based in the UTC-4 timezone, Castries is one hour ahead of Washington DC.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This leaves you with plenty of time to board your BWI to Castries flight.

  • You can expect bigger queues during popular months like July. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

  • We make it easy to book plane tickets from BWI to Castries with a stopover. To see your options, deselect 'Direct flights only.' Next, choose a flight offering a stop long enough to tour the city of your choice. Popular stopovers include:

    • Atlanta Hartsfield-Jackson International Airport (ATL)

    • New York John F. Kennedy International Airport (JFK)

    • Miami International Airport (MIA)

  • The journey from central Washington DC to BWI takes about 50 minutes on public transport. If you drive, ride-share or grab a taxi, you'll cover the 40 kilometres in 40 minutes or so, depending on traffic.

  • Looking for a hotel near BWI? If you're boarding an early flight from Baltimore Washington International Airport to Castries, these accommodation options put the terminal practically at your doorstep:

  • Of all flights departing from Baltimore Washington International Airport, 77% arrive on time at their destination.

How to find the cheapest flights from Baltimore Washington International Airport (BWI) to Castries

  • The best price we've seen for a one-way Baltimore Washington International Airport to Castries flight is $357. The cheapest price for a return flight is $887. Remember fares can change due to demand at the time of booking.

  • To find cheap flights from BWI to Castries, book as early as you can. Airlines generally offer lower fares when flights first go on sale.

  • Landing cheap tickets from Baltimore Washington International Airport to Castries is more likely if you can be flexible with your travel plans. Use the 'Whole month' tool to get the lowest fares across the month and pick up an awesome deal.

  • You don't need to keep checking in to find out if fares have dropped when you create a Price Alert. We'll notify you as soon as there's an even bigger deal on cheap flights from BWI to Castries.

  • Save on your flight from Baltimore Washington International Airport to Castries with the help of our filters. Select your preferred departure time, duration and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Castries

St Lucia Hewnorra International Airport (UVF)

  • The distance from St Lucia Hewnorra International Airport (UVF) to central Castries is roughly 72 kilometres. It takes about 1 hour 30 minutes to reach the centre driving.

  • Travelling on public transport takes about 2 hours.

  • If you're coming in on a late flight from Baltimore Washington International Airport to Castries, nothing beats the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and resting soon after at one of these accommodation options near UVF:

  • Reserving your vehicle from St Lucia Hewnorra International Airport about one week ahead of your flight from BWI to Castries can help you secure the lowest rate.

Castries George F. L. Charles Airport (SLU)

  • Castries George F. L. Charles Airport (SLU) is about 3 kilometres from the centre of Castries. Once you've hopped off your flight from Baltimore Washington International Airport to Castries, it'll take you around 10 minutes to get to the heart of the city in a ride-share or taxi.

  • If you travel by public transport, the ride to the centre will take you 15 minutes or so.

  • Hang the 'Do not disturb' sign on your door and relax at a hotel near SLU. Here are a few options where you can put your feet up after your BWI to Castries flight:

  • Avoid paying extra. Securing your ride one week before your arrival at SLU can help you lock in a better rate.

Best time to go to Castries

  • It's time to work out your travel dates for your flight from Baltimore Washington International Airport to Castries. February is the busiest month for a trip to Castries. If you prefer a more relaxed vibe, go in September.

  • Before booking a Baltimore Washington International Airport to Castries plane ticket, think about the type of weather you enjoy. September is the warmest month in Castries, with temperatures ranging from 26ºC to 30ºC.

  • Look for cheap tickets from BWI to Castries in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 24ºC and 28ºC on average.

More about Castries

  • When it comes to searching for somewhere to rest your head, you'll find the most popular stays in Castries right here. Explore these hotels as soon as you've locked in your flight from Baltimore Washington International Airport to Castries:

  • There are so many things to discover in this city it can be difficult to know where to begin. Malabar Beach, Vigie Beach and Morne Fortune are major attractions which should feature on every Castries itinerary.

More travel options

Plan the rest of your trip from Washington D.C. to Castries

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.