Which airports can I use when flying from Washington, D.C. to Castries?

Flights from Washington, D.C. to Castries may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Castries George F. L. Charle (SLU).

What cabin classes can I book on flights from Washington, D.C. to Castries?

Only Economy Class is available on flights from Washington, D.C. to Castries.

Do I need a passport to fly from Washington, D.C. to Castries?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Washington, D.C. to Castries changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $927 to $3,995. That means the highest observed fare was about 4x higher than the lowest one.

What car rental options are available at Castries George F. L. Charle Airport (SLU)?

Castries George F. L. Charle Airport (SLU) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include: • Ace • Drive A Matic • Final Rentals • Sixt • FlexWays

What is the cheapest Washington, D.C. to Castries flight route?

There's little price difference between Washington, D.C. to Castries routes. They average around $1,665 round-trip, based on KAYAK data over the past 12 months.

Cheap Flights from Washington, D.C. to Castries | KAYAK

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Cheapest round-trip

$927

Typical prices: $1,665-$1,665

Multiple Airlines

Thu 1/11Mon 1/15

DCA - SLU • 2 stops

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Flight Deals

Cheap Flights from Washington, D.C. to Castries (WAS-SLU)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Washington, D.C. to Castries

Mon, Jan 11 - Fri, Jan 15

8:45 pm - 7:00 pmDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

21h 15m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 pm - 8:58 amSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

21h 23m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

$927Multiple Airlines

Thu, Nov 12 - Wed, Nov 18

6:00 am - 7:00 pmDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

12h 00m2 stops Montreal Pierre Elliott Trudeau Intl Bridgetown Grantley Adams Intl

9:10 am - 8:58 amSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

24h 48m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

$986Multiple Airlines

Thu, Feb 11 - Tue, Feb 16

6:00 am - 7:00 pmDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

12h 00m2 stops Montreal Pierre Elliott Trudeau Intl Bridgetown Grantley Adams Intl

12:35 pm - 6:18 pmSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

30h 43m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

$999Multiple Airlines

Sat, Mar 13 - Wed, Mar 17

6:00 am - 7:00 pmDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

12h 00m2 stops Montreal Pierre Elliott Trudeau Intl Bridgetown Grantley Adams Intl

12:35 pm - 3:18 pmSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

26h 43m2 stops Bridgetown Grantley Adams Intl Montreal Pierre Elliott Trudeau Intl

$1,007Multiple Airlines

Fri, Mar 19 - Fri, Mar 26

6:59 am - 7:00 pmDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

12h 01m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 pm - 8:56 amSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

20h 21m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

$1,010Multiple Airlines

Mon, Oct 26 - Fri, Oct 30

6:00 am - 6:55 pmDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

12h 55m2 stops Montreal Pierre Elliott Trudeau Intl Bridgetown Grantley Adams Intl

12:35 pm - 9:59 pmSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

33h 24m3 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,016Multiple Airlines

Mon, Oct 26 - Fri, Oct 30

6:00 am - 8:10 amDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

26h 10m3 stops Montreal Pierre Elliott Trudeau Intl Bridgetown Grantley Adams Intl Port of Spain Piarco Intl

12:35 pm - 10:29 amSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

21h 54m3 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,027Multiple Airlines

Wed, Dec 2 - Tue, Dec 8

8:45 pm - 7:00 pmDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

21h 15m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 pm - 12:19 pmSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

24h 44m3 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl Ottawa

$1,062Multiple Airlines

Wed, Dec 2 - Tue, Dec 8

4:00 pm - 7:00 pmDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

26h 00m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 pm - 12:19 pmSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

24h 44m3 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl Ottawa

$1,070Multiple Airlines

Sun, Nov 1 - Sat, Nov 7

6:55 pm - 7:00 pmDCA Washington, D.C. Reagan-National-SLU Castries George F. L. Charle

23h 05m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 pm - 10:24 amSLU Castries George F. L. Charle-DCA Washington, D.C. Reagan-National

22h 49m2 stops Bridgetown Grantley Adams Intl Montreal Pierre Elliott Trudeau Intl

$1,073Multiple Airlines

Booking Insights

Price, demand and travel trends for Washington, D.C. to Castries flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What is the cheapest Washington, D.C. to Castries flight route? KAYAK tracks online flight deals over the last 12 months and analyzes pricing trends to identify the best available fares.: There's little price difference between Washington, D.C. to Castries routes. They average around $1,665 round-trip, based on KAYAK data over the past 12 months.

Find deals

Cheapest flight	$617

One-way flight from Washington, D.C. Reagan-National Airport to Castries

When to book flights from Washington, D.C. to Castries

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Castries based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Washington, D.C. to Castries?
Only Economy Class is available on flights from Washington, D.C. to Castries.
Do I need a passport to fly from Washington, D.C. to Castries?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Washington, D.C. to Castries changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $927 to $3,995. That means the highest observed fare was about 4x higher than the lowest one.
What car rental options are available at Castries George F. L. Charle Airport (SLU)?
Castries George F. L. Charle Airport (SLU) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include:

• Ace
• Drive A Matic
• Final Rentals
• Sixt
• FlexWays
Which airports can I use when flying from Washington, D.C. to Castries?
Flights from Washington, D.C. to Castries may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Castries George F. L. Charle (SLU).

If you're arriving late at night and need somewhere to stay, check out these hotels close to Castries George F. L. Charle Airport.

• Stolen Time St. Lucia
• Sandals Regency La Toc

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Everything you should know

Cheap Flights from Washington, D.C. to Castries (WAS-SLU)

Recent round-trip flight deals from Washington, D.C. to Castries

Recent one-way flight deals from Washington, D.C. to Castries

Price, demand and travel trends for Washington, D.C. to Castries flights

What is the cheapest Washington, D.C. to Castries flight route?

Key details for Washington, D.C. to Castries flights

Cheapest flight

When to book flights from Washington, D.C. to Castries

Your Washington, D.C. to Castries flight questions, answered

Your guide to booking Washington, D.C. to Castries flights

More options for your flight from Washington, D.C. to Castries

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