Cheap flights from Washington, D.C. Reagan-National Airport to Castries from $141

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Castries departing on 10/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Castries (DCA-UVF)

Cheap round-trip flights

Air Canada Logo
6:50 pm - 4:25 pmDCA-UVF
20h 35m1 stop
Air Canada Logo
5:15 pm - 6:05 pmUVF-DCA
25h 50m1 stop
$418Air Canada
Find Deal
Tue, Dec 2 - Wed, Dec 10
Air Canada Logo
6:59 am - 3:25 pmDCA-UVF
8h 26m1 stop
Air Canada Logo
5:15 pm - 10:26 amUVF-DCA
18h 11m2 stops
$425Air Canada
Find Deal
Fri, Oct 31 - Mon, Nov 3
Air Canada Logo
6:59 am - 3:25 pmDCA-UVF
8h 26m1 stop
Air Canada Logo
5:15 pm - 10:35 pmUVF-DCA
30h 20m1 stop
$427Air Canada
Find Deal
Fri, Oct 31 - Mon, Nov 3
JetBlue Logo
6:24 am - 1:57 pmDCA-UVF
7h 33m1 stop
JetBlue Logo
4:57 pm - 2:50 pmUVF-DCA
22h 53m1 stop
$431JetBlue
Find Deal
Fri, Oct 31 - Wed, Nov 5
JetBlue Logo
4:55 pm - 2:57 pmDCA-UVF
21h 02m1 stop
JetBlue Logo
4:57 pm - 2:50 pmUVF-DCA
22h 53m1 stop
$436JetBlue
Find Deal
Sun, Nov 2 - Thu, Nov 6
Delta Logo
7:00 am - 3:39 pmDCA-UVF
7h 39m1 stop
Delta Logo
4:35 pm - 9:12 amUVF-DCA
17h 37m1 stop
$505Delta
Find Deal
Thu, Nov 27 - Thu, Dec 4
Delta Logo
7:00 am - 3:39 pmDCA-UVF
7h 39m1 stop
Delta Logo
4:35 pm - 9:12 amUVF-DCA
17h 37m1 stop
$536Delta
Find Deal
Thu, Nov 27 - Tue, Dec 9
American Airlines Logo
7:00 pm - 1:04 pmDCA-UVF
17h 04m1 stop
American Airlines Logo
3:35 pm - 9:15 amUVF-DCA
18h 40m1 stop
$567American Airlines
Find Deal
Sat, Jan 3 - Thu, Jan 8
American Airlines Logo
10:02 pm - 2:30 pmDCA-UVF
15h 28m2 stops
American Airlines Logo
3:35 pm - 11:09 pmUVF-DCA
8h 34m1 stop
$572American Airlines
Find Deal
Tue, Jan 6 - Fri, Jan 16
 Logo
6:59 am - 3:25 pmDCA-UVF
8h 26m1 stop
 Logo
3:40 pm - 3:31 pmUVF-DCA
24h 51m2 stops
Fri, Oct 31 - Tue, Nov 4

JetBlue flights from Washington, D.C. Reagan-National Airport to Castries

Our best JetBlue deals on Washington, D.C. Reagan-National Airport to Castries flight tickets
JetBlue
Oct 31
DCA6:24 amWashington, D.C. Reagan-National
7h 33m
1 stop
UVF1:57 pmCastries Hewanorra
Nov 5
UVF4:57 pmCastries Hewanorra
22h 53m
1 stop
DCA2:50 pmWashington, D.C. Reagan-National
JetBlue
Nov 2
DCA4:55 pmWashington, D.C. Reagan-National
21h 02m
1 stop
UVF2:57 pmCastries Hewanorra
Nov 6
UVF4:57 pmCastries Hewanorra
22h 53m
1 stop
DCA2:50 pmWashington, D.C. Reagan-National
JetBlue
Nov 3
DCA6:24 amWashington, D.C. Reagan-National
7h 33m
1 stop
UVF2:57 pmCastries Hewanorra
Nov 4
UVF4:57 pmCastries Hewanorra
22h 53m
1 stop
DCA2:50 pmWashington, D.C. Reagan-National

Air Canada flights from Washington, D.C. Reagan-National Airport to Castries

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Castries flight tickets
Air Canada
Sep 8
DCA12:55 pmWashington, D.C. Reagan-National
25h 20m
2 stops
UVF2:15 pmCastries Hewanorra
Sep 16
UVF3:10 pmCastries Hewanorra
20h 58m
2 stops
DCA12:08 pmWashington, D.C. Reagan-National
Air Canada
Sep 8
DCA4:35 pmWashington, D.C. Reagan-National
21h 40m
2 stops
UVF2:15 pmCastries Hewanorra
Sep 16
UVF3:10 pmCastries Hewanorra
26h 54m
1 stop
DCA6:04 pmWashington, D.C. Reagan-National
Air Canada
Dec 2
DCA6:50 pmWashington, D.C. Reagan-National
20h 35m
1 stop
UVF4:25 pmCastries Hewanorra
Dec 10
UVF5:15 pmCastries Hewanorra
25h 50m
1 stop
DCA6:05 pmWashington, D.C. Reagan-National

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 27, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Tue 12/2

6:50 pm-4:25 pm

1 stop20h 35m

Castries Hewanorra

Wed 12/10

5:15 pm-6:05 pm

1 stop25h 50m

$418

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Fri 10/31

6:59 am-3:25 pm

1 stop8h 26m

Castries Hewanorra

Mon 11/3

5:15 pm-10:26 am

2 stops18h 11m

$425

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Fri 10/31

6:59 am-3:25 pm

1 stop8h 26m

Castries Hewanorra

Mon 11/3

5:15 pm-10:35 pm

1 stop30h 20m

$427

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Fri 10/31

6:24 am-1:57 pm

1 stop7h 33m

Castries Hewanorra

Wed 11/5

4:57 pm-2:50 pm

1 stop22h 53m

$431

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Sun 11/2

4:55 pm-2:57 pm

1 stop21h 02m

Castries Hewanorra

Thu 11/6

4:57 pm-2:50 pm

1 stop22h 53m

$436

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Thu 11/27

7:00 am-3:39 pm

1 stop7h 39m

Castries Hewanorra

Thu 12/4

4:35 pm-9:12 am

1 stop17h 37m

$505

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Thu 11/27

7:00 am-3:39 pm

1 stop7h 39m

Castries Hewanorra

Tue 12/9

4:35 pm-9:12 am

1 stop17h 37m

$536

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Sat 1/3

7:00 pm-1:04 pm

1 stop17h 04m

Castries Hewanorra

Thu 1/8

3:35 pm-9:15 am

1 stop18h 40m

$567

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Tue 1/6

10:02 pm-2:30 pm

2 stops15h 28m

Castries Hewanorra

Fri 1/16

3:35 pm-11:09 pm

1 stop8h 34m

$572

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Fri 10/31

6:59 am-3:25 pm

1 stop8h 26m

Castries Hewanorra

Tue 11/4

3:40 pm-3:31 pm

2 stops24h 51m

$589

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Castries from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Castries

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Castries?

The month of May is, on average, the cheapest month to fly to Castries from Washington, D.C. Reagan-National Airport, with most prices found around $391. The month of October is another great option to travel to Castries, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $593.

What is the cheapest day to depart on your flight to Castries?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Castries is on a Tuesday when prices can be found for as low as $673. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $821. These prices are subject to change though, so be sure to set up a Price Alert for flights to Castries.

What is the cheapest time of day to depart on your flight to Castries?

According to our data, the cheapest time of day to fly to Castries is in the evening. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to Castries in the evening for as low as $715. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Castries are more costly at noon, with an average ticket price of $797. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Castries?

You are more likely to see cheaper flights to Castries from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Castries for around $749 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Castries from Washington, D.C. Reagan-National Airport for as low as $567 on momondo.

When to book flights from Washington, D.C. Reagan-National Airport to Castries

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Castries according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Castries (DCA to UVF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Castries

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to Castries. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Castries.
  • How far is Washington, D.C. Reagan-National to Castries Hewanorra by plane?

    The straight-line distance from Washington, D.C. Reagan-National to Castries Hewanorra is 1974.4 mi. By plane, this route typically takes 7h 19m.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Castries Hewanorra Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Castries Hewanorra Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Castries Hewanorra Airport?

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Castries Hewanorra Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Reagan-National Airport to Castries Hewanorra Airport.

  • What documentation or ID do you need to fly to Castries Hewanorra Airport?

    The travel and health documents required for your trip to Castries Hewanorra Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Castries Hewanorra Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Castries?

Best airlines flying from Washington, D.C. Reagan-National Airport to Castries

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Castries with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $179Free CancellationRating
7.2
2,919 reviews
Search JetBlue flights
DeltaPriceFrom $385Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $567Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Vieux Fort

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Castries?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Castries. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Castries with flexible booking policies on momondo?

momondo does allow users to show only those flights to Castries from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Castries?

momondo helps you find the best flight between Washington, D.C. and Castries by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Castries right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Castries, momondo offers a useful price alert feature which will track prices for flights to Castries from Washington, D.C. and alert you when they change.

An easier way to manage your Castries trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 9/1
Mon 9/8

Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia