WAS - SLU

$434 Find Cheap Flights from Washington, D.C. to Castries - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$726
Typical prices: $1,665-$1,665
Multiple Airlines
Wed 9/26Wed 10/3
DCA - SLU • 2 stops
Top layover airports
Toronto Pearson Intl (YYZ)
Cheapest • Avg $398 (round-trip)
Charlotte Douglas (CLT)
Shortest trip • 8h 09m (one-way)
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Cheap Flights from Washington, D.C. to Castries (WAS-SLU)

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

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

Sat, Sep 26 - Sat, Oct 3
Multiple Airlines Logo
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
Multiple Airlines Logo
12:35 pm - 8:55 amSLU  Castries George F. L. Charle-DCA Washington, D.C. Reagan-National
20h 20m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$726Multiple Airlines
Thu, Oct 1 - Mon, Oct 5
Multiple Airlines Logo
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
Multiple Airlines Logo
12:35 pm - 8:00 pmSLU  Castries George F. L. Charle-DCA Washington, D.C. Reagan-National
31h 25m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$726Multiple Airlines
Sat, Jan 9 - Sat, Jan 16
Multiple Airlines Logo
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
Multiple Airlines Logo
12:35 pm - 9:59 pmSLU  Castries George F. L. Charle-DCA Washington, D.C. Reagan-National
34h 24m2 stops Bridgetown Grantley Adams Intl Montreal Pierre Elliott Trudeau Intl
$745Multiple Airlines
Fri, Nov 6 - Tue, Nov 10
Multiple Airlines Logo
4:00 pm - 7:00 pmDCA  Washington, D.C. Reagan-National-SLU Castries George F. L. Charle
26h 00m2 stops Montreal Pierre Elliott Trudeau Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
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
$751Multiple Airlines
Fri, Nov 20 - Wed, Nov 25
Multiple Airlines Logo
4:00 pm - 7:00 pmDCA  Washington, D.C. Reagan-National-SLU Castries George F. L. Charle
26h 00m2 stops Montreal Pierre Elliott Trudeau Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
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
$751Multiple Airlines
Tue, Nov 24 - Tue, Dec 1
Multiple Airlines Logo
9:40 am - 7:00 pmDCA  Washington, D.C. Reagan-National-SLU Castries George F. L. Charle
32h 20m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
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
$756Multiple Airlines
Sat, Nov 7 - Wed, Nov 11
Multiple Airlines Logo
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
Multiple Airlines Logo
3:45 pm - 7:58 pmSLU  Castries George F. L. Charle-DCA Washington, D.C. Reagan-National
53h 13m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$766Multiple Airlines
Tue, Nov 3 - Sat, Nov 7
Multiple Airlines Logo
8:45 pm - 12:05 pmDCA  Washington, D.C. Reagan-National-SLU Castries George F. L. Charle
38h 20m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 10:29 amSLU  Castries George F. L. Charle-DCA Washington, D.C. Reagan-National
22h 54m2 stops Bridgetown Grantley Adams Intl Montreal Pierre Elliott Trudeau Intl
$766Multiple Airlines
Sat, Nov 21 - Sun, Nov 29
Multiple Airlines Logo
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
Multiple Airlines Logo
3:45 pm - 7:58 pmSLU  Castries George F. L. Charle-DCA Washington, D.C. Reagan-National
53h 13m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$766Multiple Airlines
Tue, Nov 3 - Sat, Nov 7
Multiple Airlines Logo
9:55 am - 12:05 pmIAD  Washington, D.C. Dulles Intl-SLU Castries George F. L. Charle
49h 10m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 3:45 pmSLU  Castries George F. L. Charle-IAD Washington, D.C. Dulles Intl
28h 10m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$771Multiple 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 from Washington, D.C. to Castries with more confidence.

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.

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

Cheapest flight

$434
Flight from Baltimore 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

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

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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.

  • Which airports do connecting flights from Washington, D.C. to Castries pass through?

    One-stop flights from Washington, D.C. to Castries most commonly connect through:

    • New York John F Kennedy Intl (JFK) - 48% of one-stop connections
    • Miami (MIA) - 19% of one-stop connections
    • Charlotte Douglas (CLT) - 15% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 11% of one-stop connections

    New York John F Kennedy Intl (JFK) handles the largest share of one-stop connections on this route.

  • How long is a flight from Washington, D.C. to Castries?

    There are currently no nonstop flights available from Washington, D.C. to Castries. Flights with 1 layover take between 8h 09m and 16h 56m in total, depending on the connection.

  • 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 $726 to $4,168. That means the highest observed fare was about 6x higher than the lowest one.

  • How much time can I save by choosing a different layover airport from Washington, D.C. to Castries?

    Flying via Charlotte Douglas (CLT) gives the shortest average 1-stop total travel time at 8h 09m, compared with 8h 16m via Atlanta Hartsfield-Jackson (ATL) and 8h 42m via New York John F Kennedy Intl (JFK).

  • 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
    · Hertz

  • How much should I expect to pay for a Washington, D.C. to Castries flight?

    Round-trip flights from Washington, D.C. to Castries range from $1,665 to $1,665, with an average of $1,665 over the past 12 months. Anything below $1,665 counts as a good deal.

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

Get tips on when to book, when to fly and what to know before your trip.

Everything you need to know for your flight from Washington, D.C. to Castries

Information on your arrival and departure airports

Castries (SLU)