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

Air Canada, at $388, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Castries.Alternate airlines to your destination round-trip include American Airlines and Delta. Air Canada is currently priced 52% below the average price you’ll pay for this route.

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

The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Castries are Air Canada ($191), American Airlines ($273), and Delta ($627).

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

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

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

Travelers have found that booking a Sunday departure is the best way to save up to 94% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

Flights from Washington, D.C. Dulles Intl Airport to Castries lean towards being more expensive in July. Prices are generally better when you fly from Washington, D.C. Dulles Intl Airport to Castries in January, with the cheapest ticket starting at $571.

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

Unlike in the morning, when flights are generally more expensive, you can save up to 25% on flights from Washington, D.C. Dulles Intl Airport to Castries by exploring options for tickets at noon.

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

If you book a flight to Castries from Washington, D.C. Dulles Intl, you will be flying to Hewanorra, which is the city’s only airport. Castries Hewanorra (UVF) is located 19.3 mi from the center of Castries. There are 0 flights from Washington, D.C. Dulles Intl to Hewanorra per day from 2 different airlines.

Can I find deals for flights from Dulles Intl to Castries that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Castries?

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

Can I find deals for business class flights from Dulles Intl to Castries?

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$191+ Flights from Washington, D.C. Dulles Intl Airport to Castries

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Cheap flight deals from Dulles Intl to Castries

Round-trip from	$388 (Air Canada)
One-way from	$191 (Priceline)
Popular in	June
Cheapest in	November
Average price	$1,371

From Washington, D.C. Dulles Intl to Castries Hewanorra

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One-way flight from Washington, D.C. Dulles Intl to Castries Hewanorra

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Highest demand for flights based on searches. 21% potential increase in price ($221 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($50 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Dulles Intl to Castries

Cheapest flights from Dulles Intl to Castries
Explore the most affordable flight options available from Dulles Intl to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 26, 2025.

lun. 9/82:25 pmIAD - UVF

1 stop23h 50mAir Canada

vie. 9/123:10 pmUVF - IAD

1 stop18h 28mAir Canada

Deal found 6/25

$388

mar. 12/95:00 amIAD - UVF

1 stop8h 20mAmerican Airlines

mar. 12/165:05 pmUVF - IAD

1 stop7h 50mAmerican Airlines

Deal found 6/24

$567

jue. 8/72:25 pmIAD - UVF

1 stop23h 50mMultiple Airlines

dom. 8/102:35 pmUVF - IAD

1 stop19h 02mMultiple Airlines

Deal found 6/26

$628

dom. 10/196:00 amIAD - UVF

1 stop8h 17mDelta

jue. 10/233:32 pmUVF - IAD

1 stop8h 35mDelta

Deal found 6/25

$731

Best flights from Dulles Intl to Castries
Discover carefully curated flight deals from Dulles Intl to Castries that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 26, 2025.

lun. 9/82:25 pmIAD - UVF

1 stop23h 50mAir Canada

vie. 9/123:10 pmUVF - IAD

1 stop18h 28mAir Canada

Deal found 6/25

$388

mar. 12/95:00 amIAD - UVF

1 stop8h 20mAmerican Airlines

mar. 12/165:05 pmUVF - IAD

1 stop7h 50mAmerican Airlines

Deal found 6/26

$567

jue. 8/72:25 pmIAD - UVF

1 stop23h 50mMultiple Airlines

dom. 8/102:35 pmUVF - IAD

1 stop19h 02mMultiple Airlines

Deal found 6/26

$628

dom. 10/196:00 amIAD - UVF

1 stop8h 17mDelta

jue. 10/233:32 pmUVF - IAD

1 stop8h 35mDelta

Deal found 6/25

$731

Last-minute flights from Dulles Intl to Castries
Discover last-minute flight deals from Dulles Intl to Castries. Data last updated junio 26, 2025 and is based on user searches.

dom. 6/296:55 amIAD - UVF

1 stop7h 20mAmerican Airlines

mar. 9/233:17 pmUVF - IAD

2 stops18h 50mAmerican Airlines

Deal found 6/26

$757

mié. 7/26:45 pmIAD - UVF

2 stops19h 00mWestJet

dom. 7/62:35 pmUVF - IAD

2 stops27h 19mWestJet

Deal found 6/25

$1,461

mié. 7/29:00 pmIAD - UVF

2 stops42h 00mBritish Airways

sáb. 7/58:25 pmUVF - IAD

1 stop23h 50mBritish Airways

Deal found 6/26

$8,352

jue. 7/32:25 pmIAD - UVF

1 stop23h 50mAir Canada

mar. 7/83:10 pmUVF - IAD

1 stop20h 29mAir Canada

Deal found 6/24

$720

sáb. 7/511:07 amIAD - UVF

2 stops26h 53mAmerican Airlines

mié. 7/93:00 pmUVF - IAD

2 stops21h 49mAmerican Airlines

Deal found 6/25

$842

dom. 7/66:00 amIAD - UVF

1 stop8h 16mDelta

jue. 7/103:40 pmUVF - IAD

1 stop8h 54mDelta

Deal found 6/25

$1,007

dom. 7/68:18 amIAD - UVF

2 stops53h 57mMultiple Airlines

jue. 7/102:35 pmUVF - IAD

2 stops20h 39mMultiple Airlines

Deal found 6/25

$1,084

lun. 7/710:20 amIAD - UVF

1 stop27h 55mAir Canada

vie. 7/113:10 pmUVF - IAD

1 stop22h 32mAir Canada

Deal found 6/25

$610

sáb. 7/196:35 amIAD - UVF

1 stop8h 55mUnited Airlines

sáb. 7/2612:55 pmUVF - IAD

1 stop11h 35mUnited Airlines

Deal found 6/25

$6,117

lun. 7/2110:20 amIAD - UVF

1 stop27h 55mMultiple Airlines

vie. 7/253:10 pmUVF - IAD

2 stops29h 43mMultiple Airlines

Deal found 6/25

$974

One-way flights from Dulles Intl to Castries
Search for one-way flight options from Dulles Intl to Castries. Find affordable one-way fares based on user searches. Data last updated junio 26, 2025.

jue. 7/2412:31 pmIAD - UVF

2 stops25h 44mAir Canada

Deal found 6/25

$191

sáb. 7/268:06 pmIAD - UVF

1 stop18h 14mAmerican Airlines

Deal found 6/24

$273

sáb. 7/265:31 pmIAD - UVF

2 stops20h 14mMultiple Airlines

Deal found 6/24

$485

mar. 7/156:00 amIAD - UVF

1 stop8h 20mDelta

Deal found 6/25

$627

vie. 7/116:45 pmIAD - UVF

2 stops43h 00mWestJet

Deal found 6/24

$1,056

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

lun. 9/8

2:25 pm-2:15 pm

1 stop23h 50m

Castries Hewanorra

vie. 9/12

3:10 pm-9:38 am

1 stop18h 28m

$388

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

mar. 12/9

5:00 am-2:20 pm

1 stop8h 20m

Castries Hewanorra

mar. 12/16

5:05 pm-11:55 pm

1 stop7h 50m

$567

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

jue. 8/7

2:25 pm-2:15 pm

1 stop23h 50m

Castries Hewanorra

dom. 8/10

2:35 pm-9:37 am

1 stop19h 02m

$628

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

dom. 10/19

6:00 am-2:17 pm

1 stop8h 17m

Castries Hewanorra

jue. 10/23

3:32 pm-12:07 am

1 stop8h 35m

$731

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

jue. 7/24

12:31 pm-2:15 pm

2 stops25h 44m

$191

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

sáb. 7/26

8:06 pm-2:20 pm

1 stop18h 14m

$273

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

sáb. 7/26

5:31 pm-1:45 pm

2 stops20h 14m

$485

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

mar. 7/15

7:02 am-2:20 pm

1 stop7h 18m

$627

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

vie. 7/11

6:45 pm-1:45 pm

2 stops43h 00m

$1,056

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Best time to book a flight from Dulles Intl to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Dulles Intl 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. Dulles Intl Airport to Castries

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Castries (average of $556). Flying from Washington, D.C. Dulles Intl Airport 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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Castries?

Reviews of airlines servicing Castries

Read reviews from past customers who have flown Delta, American Airlines, and WestJet from Washington, D.C. Dulles Intl Airport to Castries. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,963 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

7,963 reviews

Delta

8.0

Very good

7,963 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

7,963 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

2,893 reviews

Delta

8.0

Very good

7,963 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

9,637 reviews

Delta

8.0

Very good

7,963 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. Dulles Intl?
If you book a flight to Castries from Washington, D.C. Dulles Intl, you will be flying to Hewanorra, which is the city’s only airport. Castries Hewanorra (UVF) is located 19.3 mi from the center of Castries. There are 0 flights from Washington, D.C. Dulles Intl to Hewanorra per day from 2 different airlines.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Castries round-trip?
Air Canada, at $388, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Castries.Alternate airlines to your destination round-trip include American Airlines and Delta. Air Canada is currently priced 52% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Castries one-way?
The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Castries are Air Canada ($191), American Airlines ($273), and Delta ($627).
Can I find deals for flights from Dulles Intl to Castries that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Castries?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Castries.
Can I find deals for business class flights from Dulles Intl to Castries?
Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Castries?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Castries (average of $556). Flying from Washington, D.C. Dulles Intl Airport 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 Dulles Intl to Castries

Reagan-National to Castries flights

Baltimore to Castries flights

Top 2 airlines flying from Dulles Intl to Castries

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$550	Average$765	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$560	Average$840	FlexibilityNo cancel fee	On-timeN/A

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$191+ Cheap flights from Dulles Intl (IAD) to Castries (UVF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Castries with Cheapflights

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Find flight deals from Dulles Intl to Castries

Cheapest flights from Dulles Intl to CastriesExplore the most affordable flight options available from Dulles Intl to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 26, 2025.

Explore the most affordable flight options available from Dulles Intl to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 26, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Dulles Intl to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Dulles Intl with our price prediction graph.

Cheapflights Insights

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

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

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Castries?

Reviews of airlines servicing Castries

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

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

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

Can I find deals for flights from Dulles Intl to Castries that include hotel bookings?

How can I find direct flights from Dulles Intl to Castries?

Can I find deals for business class flights from Dulles Intl to Castries?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Castries

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

Top 2 airlines flying from Dulles Intl to Castries

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Cheapest flights from Dulles Intl to Castries
Explore the most affordable flight options available from Dulles Intl to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 26, 2025.