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459 € Cheap Flights from Washington Ronald Reagan to Castries

Compare Washington Ronald Reagan 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 Washington Ronald Reagan to Castries

Looking for a cheap last-minute deal or the best return flight from Washington Ronald Reagan Airport to Castries? If you want to travel next month, return fares start from 471 €. Find the lowest prices on one-way and return tickets right here.
Castries.459 € per passenger.Departing Thu, 29 Oct, returning Mon, 2 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Thu, 29 Oct, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Mon, 2 Nov, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 459 €, select.
Castries.463 € per passenger.Departing Sat, 2 Jan, returning Fri, 15 Jan.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Sat, 2 Jan, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Fri, 15 Jan, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 463 €, select.
Castries.463 € per passenger.Departing Thu, 5 Nov, returning Mon, 9 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Thu, 5 Nov, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Mon, 9 Nov, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 463 €, select.
Castries.471 € per passenger.Departing Mon, 13 Jul, returning Fri, 17 Jul.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Mon, 13 Jul, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Fri, 17 Jul, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 471 €, select.
Castries.473 € per passenger.Departing Mon, 3 Aug, returning Fri, 7 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Mon, 3 Aug, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Fri, 7 Aug, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 473 €, select.
Castries.491 € per passenger.Departing Mon, 22 Jun, returning Tue, 30 Jun.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Mon, 22 Jun, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Tue, 30 Jun, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 491 €, select.
Castries.539 € per passenger.Departing Mon, 17 May, returning Fri, 21 May.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Mon, 17 May, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Fri, 21 May, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 539 €, select.
Castries.540 € per passenger.Departing Thu, 4 Mar, returning Mon, 8 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Thu, 4 Mar, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Mon, 8 Mar, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 540 €, select.
Castries.571 € per passenger.Departing Wed, 26 Aug, returning Sat, 5 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Ronald Reagan on Wed, 26 Aug, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Sat, 5 Sep, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 571 €, select.
Castries.582 € per passenger.Departing Fri, 18 Sep, returning Tue, 22 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Ronald Reagan on Fri, 18 Sep, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Tue, 22 Sep, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 582 €, select.
Castries.642 € per passenger.Departing Tue, 30 Jun, returning Fri, 10 Jul.Return flight with jetBlue.Outbound indirect flight with jetBlue, departs from Washington Ronald Reagan on Tue, 30 Jun, arriving in St Lucia Hewanorra.Inbound indirect flight with jetBlue, departs from St Lucia Hewanorra on Fri, 10 Jul, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 642 €, select.
Castries.686 € per passenger.Departing Wed, 29 Jul, returning Mon, 3 Aug.Return flight with jetBlue.Outbound indirect flight with jetBlue, departs from Washington Ronald Reagan on Wed, 29 Jul, arriving in St Lucia Hewanorra.Inbound indirect flight with jetBlue, departs from St Lucia Hewanorra on Mon, 3 Aug, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 686 €, select.
Castries.692 € per passenger.Departing Wed, 30 Dec, returning Fri, 15 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Ronald Reagan on Wed, 30 Dec, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Fri, 15 Jan, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 692 €, select.
Castries.766 € per passenger.Departing Sat, 10 Oct, returning Sat, 17 Oct.Return flight with United.Outbound indirect flight with United, departs from Washington Ronald Reagan on Sat, 10 Oct, arriving in St Lucia Hewanorra.Inbound indirect flight with United, departs from St Lucia Hewanorra on Sat, 17 Oct, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 766 €, select.
Castries.916 € per passenger.Departing Sat, 5 Dec, returning Sat, 12 Dec.Return flight with United.Outbound indirect flight with United, departs from Washington Ronald Reagan on Sat, 5 Dec, arriving in St Lucia Hewanorra.Inbound indirect flight with United, departs from St Lucia Hewanorra on Sat, 12 Dec, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 916 €, select.
Castries.1.080 € per passenger.Departing Thu, 11 Feb, returning Mon, 15 Feb.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Thu, 11 Feb, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Mon, 15 Feb, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 1.080 €, select.

Find the cheapest month to fly from Washington Ronald Reagan to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Ronald Reagan to Castries flights are currently cheapest in November.
Jun
from 491 €
Jul
from 471 €
Aug
from 473 €
Sep
from 582 €
Oct
from 766 €
Nov
from 463 €
Dec
from 916 €
Jan
from 463 €
Feb
from 1.080 €
Mar
from 540 €
Apr
Find prices
May
from 539 €

Alternative Washington Ronald Reagan to Castries routes

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

St Lucia Vigie

1km from central Castries
Closest
from 844 €
Search flights

St Lucia Hewanorra

31km from central Castries
Cheapest
from 459 €
Search flights

Washington D.C. to Castries: Flight information

The things to know before you go.
Cheapest flight found459 €
Cheapest month to flyOctober

Finding cheap flights from Washington Ronald Reagan 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 Washington Ronald Reagan to Castries is 459 €. 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 Washington Ronald Reagan to Castries. But we found flights with one or more stops from 459 €.
As of June 2026, there are no flights flying from Washington Ronald Reagan to Castries.
The cheapest month to fly from Washington Ronald Reagan to Castries is usually October.
If you're flying from Washington Ronald Reagan 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 459 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Ronald Reagan Airport to Castries on Thursday, 29 October 2026.
No airlines currently offer direct flights between Washington Ronald Reagan 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, Air Canada offers the cheapest flight tickets to Castries.

Flying from Ronald Reagan Washington National Airport (DCA) to Castries: what you need to know

  • Castries is one hour ahead of Washington DC, where Ronald Reagan Washington National Airport is located. Castries observes the UTC-4 timezone.

  • Give yourself enough time to make your DCA to Castries flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months such as July, it's wise to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead for an international flight when you travel during high season in general.

  • Think about adding a stopover to potentially save on your plane ticket from DCA to Castries. All you need to do is deselect 'Direct flights only' during your search. Take a break (and maybe save some cash) by stopping at one of these popular airports:

    • Atlanta Hartsfield-Jackson International Airport (ATL)

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

    • Newark Liberty International Airport (EWR)

  • Located around 6 kilometres from the centre of Washington DC, DCA can be reached in about 10 minutes by car (depending on traffic). Travelling on public transport takes roughly 25 minutes.

  • Catching an early flight from Ronald Reagan Washington National Airport to Castries? Avoid rushing to the airport (and catch some extra z's) by choosing one of these stays close to DCA:

  • When it comes to Ronald Reagan Washington National Airport's on-time performance, data shows 71% of flights arrive within the scheduled time frame.

  • DCA is located at 1 Aviation Circle.

How to find the cheapest flights from Ronald Reagan Washington National Airport (DCA) to Castries

  • The lowest price we've seen for a one-way Ronald Reagan Washington National Airport to Castries flight is 157 €. The cheapest price for a return flight is 459 €. Remember fares can change due to demand at the time of booking.

  • Don't leave everything to the last moment. You're more likely to find cheap flights from DCA to Castries if you book ahead. Airlines often offer some fantastic early bird discounts.

  • Landing cheap tickets from Ronald Reagan Washington National Airport to Castries is easier if you can be flexible with your dates. Use the 'Whole month' function to access the lowest prices throughout the month and walk away with a sweet deal.

  • Stay on top of deals for cheap flights from DCA to Castries by setting up a Price Alert. You'll get an email or notification on the app when a new discounted fare appears.

  • Pick your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Ronald Reagan Washington National Airport to Castries by 'Best,' 'Cheapest' or 'Fastest.'

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'll take you about 1 hour 30 minutes to reach the centre driving.

  • Travelling to the centre by public transport typically takes 2 hours.

  • If you're coming in on a late flight from Ronald Reagan Washington National Airport to Castries, few things beat the convenience of staying close to the terminal. Collect your bags from the carousel and then be showered and sleeping not long after at one of these accommodation options near UVF:

  • For the best deal, book your vehicle from St Lucia Hewnorra International Airport about one week in advance of your flight from DCA to Castries.

Castries George F. L. Charles Airport (SLU)

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

  • Public transport will get you there in about 15 minutes.

  • Hang the 'Do not disturb' sign on your door and rest at a hotel near SLU. Here are a few options where you can check in after your DCA to Castries flight:

  • Get exactly what you want. Reserving your ride from SLU one week ahead of time often means lower prices and a greater selection of vehicles.

Best time to go to Castries

  • February is the busiest month for flights from Ronald Reagan Washington National Airport to Castries. To avoid the crowds, head to Castries in September.

  • The warmest month in Castries is September, with temperatures ranging between 26ºC (79ºF) and 30ºC (86ºF). Book your Ronald Reagan Washington National Airport to Castries plane ticket then if that's your definition of good weather.

  • February sees average temperatures of between 24ºC (75ºF) and 28ºC (82ºF). Search for a cheap ticket from DCA to Castries around that time if you want to travel in cooler conditions.

More about Castries

  • When it comes to looking for somewhere to rest your head, you'll find the best places to stay in Castries right here. Explore these options once you've locked in your flight from Ronald Reagan Washington National Airport to Castries:

  • Malabar Beach and Vigie Beach are just a couple of the leading attractions to add to your Castries travel itinerary. Continue your sightseeing adventures at Morne Fortune.

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.