What are the cheapest airlines flying from Washington, D.C. to Castries round-trip?

Our cheapest airline available from Washington, D.C. to Castries is Air Canada. Our recent data shows that you can find tickets from as low as $388 on this airline. Additional options worth looking into are JetBlue and American Airlines, starting at $439 and $567 round-trip. Air Canada is 47% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Washington, D.C. to Castries one-way?

One-way options have recently been found by users for as low as $408 on American Airlines. Other airlines that offer cheap prices include JetBlue from $497 and WestJet from $2,391 one-way.

What is the cheapest day to fly from Washington, D.C. to Castries?

Travelers seeking maximum savings on their Washington, D.C. to Castries flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Washington, D.C. to Castries?

Most travelers choose Washington, D.C. Dulles Intl - Castries Hewanorra, Baltimore/Washington - Castries Hewanorra or Washington, D.C. Reagan-National - Castries Hewanorra when deciding on the best route from Washington, D.C. to Castries.

What is the cheapest day to fly round-trip from Washington, D.C. to Castries?

Flights from Washington, D.C. to Castries are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Castries.

What is the cheapest month to fly from Washington, D.C. to Castries?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, January can be a great choice for travel to Castries. Flights to Castries from Washington, D.C. in January are about $746 on average during January, but can be found for as low as $571.

What airport do you fly into for flights to Castries from Washington, D.C.?

Castries Hewanorra (UVF) is the airport you will fly into if you book a flight from Washington, D.C. to Castries. You should not have trouble finding flights to Hewanorra from Washington, D.C.; the airport handles an average of 0 inbound flights from Washington, D.C. per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Castries airport from Washington, D.C.. It is only a 19.3 mi journey from Hewanorra (UVF) to Castries’s city center.

Can I find deals for flights from Washington, D.C. to Castries that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Castries?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Castries.

Can I find deals for business class flights from Washington, D.C. to Castries?

Yes. Cheapflights offers flight deals from Washington, D.C. to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$388+ Flights from Washington, D.C. to Castries

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Cheap flight deals from Washington, D.C. to Castries

Round-trip from	$388 (Air Canada)
Popular in	December
Cheapest in	February
Average price	$888

From Washington, D.C. (WAS) to Castries Hewanorra

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($58 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Washington, D.C. to Castries

Cheapest flights from Washington, D.C. to Castries
Explore the most affordable flight options available from Washington, D.C. to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Mon 9/88:40 pmDCA - UVF

1 stop17h 35mAir Canada

Fri 9/123:10 pmUVF - DCA

1 stop17h 49mAir Canada

Deal found 7/2

$388

Mon 9/82:25 pmIAD - UVF

1 stop23h 50mAir Canada

Fri 9/123:10 pmUVF - IAD

1 stop22h 28mAir Canada

Deal found 7/2

$388

Thu 9/46:25 amDCA - UVF

1 stop7h 20mJetBlue

Mon 9/83:06 pmUVF - DCA

1 stop7h 50mJetBlue

Deal found 7/3

$439

Sat 8/237:45 pmBWI - UVF

1 stop18h 10mAmerican Airlines

Wed 8/273:35 pmUVF - BWI

1 stop8h 33mAmerican Airlines

Deal found 7/1

$567

Tue 12/96:24 pmDCA - UVF

1 stop17h 36mAmerican Airlines

Tue 12/165:05 pmUVF - DCA

1 stop7h 54mAmerican Airlines

Deal found 7/3

$567

Sat 8/238:19 pmIAD - UVF

1 stop17h 36mAmerican Airlines

Wed 8/272:58 pmUVF - IAD

1 stop17h 44mAmerican Airlines

Deal found 7/1

$567

Thu 8/77:52 pmBWI - UVF

1 stop18h 28mDelta

Thu 8/143:35 pmUVF - BWI

1 stop8h 48mDelta

Deal found 7/3

$592

Thu 8/78:46 pmDCA - UVF

1 stop17h 34mDelta

Fri 8/153:35 pmUVF - DCA

1 stop8h 11mDelta

Deal found 7/3

$592

Fri 8/87:02 amIAD - UVF

1 stop7h 18mDelta

Wed 8/133:35 pmUVF - IAD

1 stop17h 37mDelta

Deal found 7/3

$592

Sat 8/3012:55 pmDCA - UVF

2 stops24h 50mMultiple Airlines

Tue 9/23:10 pmUVF - DCA

1 stop17h 49mMultiple Airlines

Deal found 7/2

$608

Thu 8/282:30 pmBWI - UVF

3 stops23h 45mMultiple Airlines

Tue 9/23:10 pmUVF - BWI

3 stops30h 59mMultiple Airlines

Deal found 7/2

$648

Best flights from Washington, D.C. to Castries
Discover carefully curated flight deals from Washington, D.C. to Castries that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Mon 9/88:40 pmDCA - UVF

1 stop17h 35mAir Canada

Fri 9/123:10 pmUVF - DCA

1 stop17h 49mAir Canada

Deal found 7/2

$388

Thu 9/46:25 amDCA - UVF

1 stop7h 20mJetBlue

Mon 9/83:06 pmUVF - DCA

1 stop7h 50mJetBlue

Deal found 7/3

$439

Sat 8/237:45 pmBWI - UVF

1 stop18h 10mAmerican Airlines

Wed 8/273:35 pmUVF - BWI

1 stop8h 33mAmerican Airlines

Deal found 7/1

$567

Thu 8/77:52 pmBWI - UVF

1 stop18h 28mDelta

Wed 8/133:35 pmUVF - BWI

1 stop8h 48mDelta

Deal found 7/2

$592

Sat 8/3012:55 pmDCA - UVF

2 stops24h 50mMultiple Airlines

Tue 9/23:10 pmUVF - DCA

1 stop17h 49mMultiple Airlines

Deal found 7/2

$608

Mon 9/82:25 pmIAD - UVF

1 stop23h 50mAir Canada

Fri 9/123:10 pmUVF - IAD

1 stop22h 28mAir Canada

Deal found 7/2

$388

Tue 12/96:24 pmDCA - UVF

1 stop17h 36mAmerican Airlines

Tue 12/165:05 pmUVF - DCA

1 stop7h 54mAmerican Airlines

Deal found 7/3

$567

Thu 8/78:46 pmDCA - UVF

1 stop17h 34mDelta

Fri 8/153:35 pmUVF - DCA

1 stop8h 11mDelta

Deal found 7/3

$592

Sat 8/238:19 pmIAD - UVF

1 stop17h 36mAmerican Airlines

Wed 8/272:58 pmUVF - IAD

1 stop17h 44mAmerican Airlines

Deal found 7/1

$567

Thu 8/282:30 pmBWI - UVF

3 stops23h 45mMultiple Airlines

Tue 9/23:10 pmUVF - BWI

3 stops30h 59mMultiple Airlines

Deal found 7/2

$648

Fri 8/87:02 amIAD - UVF

1 stop7h 18mDelta

Wed 8/133:35 pmUVF - IAD

1 stop17h 37mDelta

Deal found 7/3

$592

Last-minute flights from Washington, D.C. to Castries
Discover last-minute flight deals from Washington, D.C. to Castries. Data last updated July 3, 2025 and is based on user searches.

Thu 7/105:32 pmBWI - UVF

2 stops20h 28mAmerican Airlines

Tue 7/153:00 pmUVF - BWI

1 stop9h 17mAmerican Airlines

Deal found 7/3

$976

Thu 7/108:45 amBWI - UVF

3 stops29h 05mMultiple Airlines

Tue 7/153:10 pmUVF - BWI

3 stops32h 39mMultiple Airlines

Deal found 7/3

$1,510

Sat 8/24:10 pmIAD - UVF

1 stop21h 35mMultiple Airlines

Sun 8/102:35 pmUVF - IAD

1 stop19h 41mMultiple Airlines

Deal found 7/1

$701

Thu 8/77:52 pmBWI - UVF

1 stop18h 28mDelta

Thu 8/143:35 pmUVF - BWI

1 stop8h 48mDelta

Deal found 7/3

$592

Thu 8/78:46 pmDCA - UVF

1 stop17h 34mDelta

Fri 8/153:35 pmUVF - DCA

1 stop8h 11mDelta

Deal found 7/3

$592

Fri 8/87:02 amIAD - UVF

1 stop7h 18mDelta

Wed 8/133:35 pmUVF - IAD

1 stop17h 37mDelta

Deal found 7/3

$592

Sat 8/98:07 pmDCA - UVF

1 stop18h 28mAmerican Airlines

Wed 8/132:58 pmUVF - DCA

1 stop8h 35mAmerican Airlines

Deal found 7/3

$567

Thu 8/1412:55 pmDCA - UVF

2 stops25h 20mAir Canada

Tue 8/193:10 pmUVF - DCA

2 stops20h 53mAir Canada

Deal found 7/1

$451

Sat 8/166:30 amDCA - UVF

1 stop9h 41mJetBlue

Sat 8/231:36 pmUVF - DCA

1 stop9h 23mJetBlue

Deal found 7/2

$495

Sat 8/237:45 pmBWI - UVF

1 stop18h 10mAmerican Airlines

Wed 8/273:35 pmUVF - BWI

1 stop8h 33mAmerican Airlines

Deal found 7/1

$567

Sat 8/238:19 pmIAD - UVF

1 stop17h 36mAmerican Airlines

Wed 8/272:58 pmUVF - IAD

1 stop17h 44mAmerican Airlines

Deal found 7/1

$567

Thu 8/282:25 pmIAD - UVF

1 stop23h 50mAir Canada

Tue 9/23:10 pmUVF - IAD

1 stop18h 28mAir Canada

Deal found 7/2

$448

One-way flights from Washington, D.C. to Castries
Search for one-way flight options from Washington, D.C. to Castries. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Tue 7/156:20 amDCA - UVF

1 stop8h 00mAmerican Airlines

Deal found 7/3

$408

Tue 7/156:35 amIAD - UVF

1 stop7h 45mAmerican Airlines

Deal found 7/3

$408

Tue 7/155:00 amBWI - UVF

1 stop9h 20mAmerican Airlines

Deal found 7/3

$453

Tue 7/156:30 amDCA - UVF

1 stop9h 41mJetBlue

Deal found 7/1

$497

Tue 7/1512:12 pmIAD - UVF

2 stops49h 33mWestJet

Deal found 7/3

$2,391

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. 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

Mon 9/8

8:40 pm-2:15 pm

1 stop17h 35m

Castries Hewanorra

Fri 9/12

3:10 pm-8:59 am

1 stop17h 49m

$388

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 9/8

2:25 pm-2:15 pm

1 stop23h 50m

Castries Hewanorra

Fri 9/12

3:10 pm-1:38 pm

1 stop22h 28m

$388

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Thu 9/4

6:25 am-1:45 pm

1 stop7h 20m

Castries Hewanorra

Mon 9/8

3:06 pm-10:56 pm

1 stop7h 50m

$439

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Sat 8/23

7:45 pm-1:55 pm

1 stop18h 10m

Castries Hewanorra

Wed 8/27

3:35 pm-12:08 am

1 stop8h 33m

$567

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Sat 8/9

8:07 pm-2:35 pm

1 stop18h 28m

Castries Hewanorra

Wed 8/13

2:58 pm-11:33 pm

1 stop8h 35m

$567

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sat 8/23

8:19 pm-1:55 pm

1 stop17h 36m

Castries Hewanorra

Wed 8/27

2:58 pm-8:42 am

1 stop17h 44m

$567

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Thu 8/7

7:52 pm-2:20 pm

1 stop18h 28m

Castries Hewanorra

Thu 8/14

3:35 pm-12:23 am

1 stop8h 48m

$592

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Thu 8/7

8:46 pm-2:20 pm

1 stop17h 34m

Castries Hewanorra

Thu 8/14

3:35 pm-9:11 am

1 stop17h 36m

$592

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Fri 8/8

7:02 am-2:20 pm

1 stop7h 18m

Castries Hewanorra

Wed 8/13

3:35 pm-9:12 am

1 stop17h 37m

$592

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Sat 8/30

12:55 pm-1:45 pm

2 stops24h 50m

Castries Hewanorra

Tue 9/2

3:10 pm-8:59 am

1 stop17h 49m

$608

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 17 results

Best time to book a flight from Washington, D.C. to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Washington, D.C. to Castries?

The best time to book flights from Washington, D.C. to Castries is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Castries?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Castries (average of $556). Flying from Washington, D.C. to Castries in December is currently the most expensive (average of $730). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to UVF?

It’s optimal to fly from Washington, D.C. to Castries in the evening. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Castries

Read through reviews of airlines operating flights from Washington, D.C. to Castries, such as Delta, JetBlue, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

JetBlue

7.3

Good

2,916 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

WestJet

7.2

Good

2,917 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,681 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Castries from Washington, D.C.?
Castries Hewanorra (UVF) is the airport you will fly into if you book a flight from Washington, D.C. to Castries. You should not have trouble finding flights to Hewanorra from Washington, D.C.; the airport handles an average of 0 inbound flights from Washington, D.C. per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Castries airport from Washington, D.C.. It is only a 19.3 mi journey from Hewanorra (UVF) to Castries’s city center.
What are the cheapest airlines flying from Washington, D.C. to Castries round-trip?
Our cheapest airline available from Washington, D.C. to Castries is Air Canada. Our recent data shows that you can find tickets from as low as $388 on this airline. Additional options worth looking into are JetBlue and American Airlines, starting at $439 and $567 round-trip. Air Canada is 47% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. to Castries one-way?
One-way options have recently been found by users for as low as $408 on American Airlines. Other airlines that offer cheap prices include JetBlue from $497 and WestJet from $2,391 one-way.
What are the most popular routes from Washington, D.C. to Castries?
Most travelers choose Washington, D.C. Dulles Intl - Castries Hewanorra, Baltimore/Washington - Castries Hewanorra or Washington, D.C. Reagan-National - Castries Hewanorra when deciding on the best route from Washington, D.C. to Castries.
Can I find deals for flights from Washington, D.C. to Castries that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Castries?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Castries.
Can I find deals for business class flights from Washington, D.C. to Castries?
Yes. Cheapflights offers flight deals from Washington, D.C. to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to Castries?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Castries (average of $556). Flying from Washington, D.C. to Castries in December is currently the most expensive (average of $730). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington, D.C. to Castries

Dulles Intl to Castries flights

Reagan-National to Castries flights

Top 3 airlines flying from Washington, D.C. to Castries

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$225	Average$658	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$385	Average$730	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$555	Average$750	FlexibilityNo cancel fee	On-time71%

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$388+ Cheap flights from Washington, D.C. (WAS) to Castries (UVF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Castries with Cheapflights

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3. Compare prices and book

Cheap flight deals from Washington, D.C. to Castries

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Find flight deals from Washington, D.C. to Castries

Cheapest flights from Washington, D.C. to CastriesExplore the most affordable flight options available from Washington, D.C. to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Washington, D.C. to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Castries that are best for you.

Best time to book a flight from Washington, D.C. to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Washington, D.C. with our price prediction graph.

Cheapflights Insights

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

How far ahead should I book a flight from Washington, D.C. to Castries?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Castries. Price data was last updated on June 27, 2025.

What is the cheapest month to book a flight from Washington, D.C. to Castries?

What is the cheapest time of day to fly from WAS to UVF?

Find hourly flight availability from Washington, D.C. to Castries. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Reviews of airlines servicing Castries

Read through reviews of airlines operating flights from Washington, D.C. to Castries, such as Delta, JetBlue, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Castries from Washington, D.C.?

What are the cheapest airlines flying from Washington, D.C. to Castries round-trip?

What are the cheapest airlines to fly from Washington, D.C. to Castries one-way?

What are the most popular routes from Washington, D.C. to Castries?

Can I find deals for flights from Washington, D.C. to Castries that include hotel bookings?

How can I find direct flights from Washington, D.C. to Castries?

Can I find deals for business class flights from Washington, D.C. to Castries?

What is the cheapest month to book a flight from Washington, D.C. to Castries?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Castries

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Washington, D.C. to Castries

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Cheapest flights from Washington, D.C. to Castries
Explore the most affordable flight options available from Washington, D.C. to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.