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

Air Canada, at $418, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Castries.Alternate airlines to your destination round-trip include Delta and American Airlines. Air Canada is currently priced 48% 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 Delta ($311), American Airlines ($433), and WestJet ($1,696).

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 December. 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.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Castries flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C. Dulles Intl Airport-Castries flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Castries flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Castries flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Castries flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$311+ Flights from Washington, D.C. Dulles Intl Airport to Castries

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Cheap flight deals from Dulles Intl to Castries

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$418 (Air Canada)
One-way from	$311 (Delta)
Popular in	June
Cheapest in	August
Average price	$692

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Castries Hewanorra flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Castries Hewanorra flights.

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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

Search Deals

Highest demand for flights based on searches. 21% potential increase in price ($228 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($51 potential savings vs. average RT price).

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Average for round-trip flights in April 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 April 28, 2025.

Mon 6/22:25 pmIAD - UVF

1 stop23h 50mAir Canada

Fri 6/63:10 pmUVF - IAD

1 stop18h 31mAir Canada

Deal found 4/28

$418

Thu 9/46:00 amIAD - UVF

1 stop8h 15mDelta

Mon 9/83:38 pmUVF - IAD

1 stop8h 29mDelta

Deal found 4/28

$495

Wed 6/49:45 amIAD - UVF

2 stops52h 30mMultiple Airlines

Sun 6/82:35 pmUVF - IAD

1 stop24h 31mMultiple Airlines

Deal found 4/28

$519

Sat 8/161:18 pmIAD - UVF

2 stops24h 51mAmerican Airlines

Wed 8/203:25 pmUVF - IAD

2 stops21h 23mAmerican Airlines

Deal found 4/28

$572

Sat 10/186:15 amIAD - UVF

1 stop7h 16mUnited Airlines

Sat 10/252:35 pmUVF - IAD

1 stop7h 54mUnited Airlines

Deal found 4/28

$837

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 April 28, 2025.

Mon 6/22:25 pmIAD - UVF

1 stop23h 50mAir Canada

Fri 6/63:10 pmUVF - IAD

1 stop18h 31mAir Canada

Deal found 4/28

$418

Thu 9/46:00 amIAD - UVF

1 stop8h 15mDelta

Mon 9/83:38 pmUVF - IAD

1 stop8h 29mDelta

Deal found 4/28

$495

Wed 6/49:45 amIAD - UVF

2 stops52h 30mMultiple Airlines

Sun 6/82:35 pmUVF - IAD

1 stop24h 31mMultiple Airlines

Deal found 4/28

$519

Sat 8/161:18 pmIAD - UVF

2 stops24h 51mAmerican Airlines

Wed 8/203:25 pmUVF - IAD

2 stops21h 23mAmerican Airlines

Deal found 4/28

$572

Sat 10/186:15 amIAD - UVF

1 stop7h 16mUnited Airlines

Sat 10/252:35 pmUVF - IAD

1 stop7h 54mUnited Airlines

Deal found 4/28

$837

Last-minute flights from Dulles Intl to Castries
Discover last-minute flight deals from Dulles Intl to Castries. Data last updated April 28, 2025 and is based on user searches.

Wed 5/76:00 amIAD - UVF

1 stop8h 06mDelta

Wed 5/143:26 pmUVF - IAD

1 stop8h 09mDelta

Deal found 4/28

$684

Wed 5/75:02 amIAD - UVF

1 stop9h 09mAmerican Airlines

Wed 5/142:34 pmUVF - IAD

2 stops22h 48mAmerican Airlines

Deal found 4/28

$927

Sat 5/174:20 pmIAD - UVF

1 stop21h 25mMultiple Airlines

Thu 5/224:05 pmUVF - IAD

2 stops32h 24mMultiple Airlines

Deal found 4/28

$813

Sun 5/189:45 amIAD - UVF

2 stops52h 30mAir Canada

Fri 5/233:10 pmUVF - IAD

1 stop18h 29mAir Canada

Deal found 4/28

$690

Mon 5/196:00 amIAD - UVF

1 stop8h 06mDelta

Thu 5/223:26 pmUVF - IAD

1 stop9h 02mDelta

Deal found 4/28

$495

Wed 5/285:02 amIAD - UVF

1 stop9h 09mAmerican Airlines

Wed 6/43:14 pmUVF - IAD

1 stop8h 48mAmerican Airlines

Deal found 4/28

$607

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 April 28, 2025.

Sat 5/106:00 amIAD - UVF

1 stop8h 06mDelta

Deal found 4/28

$311

Sat 5/105:02 amIAD - UVF

2 stops8h 32mAmerican Airlines

Deal found 4/28

$433

Fri 5/92:21 amIAD - UVF

3 stops35h 24mMultiple Airlines

Deal found 4/28

$693

Tue 7/1512:12 pmIAD - UVF

2 stops49h 33mWestJet

Deal found 4/28

$1,696

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

Mon 6/2

2:25 pm-2:15 pm

1 stop23h 50m

Castries Hewanorra

Fri 6/6

3:10 pm-9:41 am

1 stop18h 31m

$418

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 5/19

6:00 am-2:06 pm

1 stop8h 06m

Castries Hewanorra

Thu 5/22

3:26 pm-12:28 am

1 stop9h 02m

$495

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Wed 6/4

9:45 am-2:15 pm

2 stops52h 30m

Castries Hewanorra

Sun 6/8

2:35 pm-3:06 pm

1 stop24h 31m

$519

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Wed 5/28

5:02 am-2:11 pm

1 stop9h 09m

Castries Hewanorra

Wed 6/4

3:14 pm-12:02 am

1 stop8h 48m

$607

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sat 5/10

6:00 am-2:06 pm

1 stop8h 06m

$311

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sat 5/10

5:02 am-1:34 pm

2 stops8h 32m

$433

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sat 5/10

5:34 pm-1:45 pm

2 stops20h 11m

$697

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Tue 7/15

12:12 pm-1:45 pm

2 stops49h 33m

$1,696

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Compare providers for flights from Dulles Intl to Castries

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Castries in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Castries flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C. Dulles Intl Airport-Castries flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Castries flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Castries flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Castries flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Reviews of airlines servicing Castries

See what other customers who have flown with Delta, United Airlines and American Airlines from Washington, D.C. to Castries have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,929 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet

7.2

Good

2,823 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

9,228 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $418, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Castries.Alternate airlines to your destination round-trip include Delta and American Airlines. Air Canada is currently priced 48% 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 Delta ($311), American Airlines ($433), and WestJet ($1,696).
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

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Alternative routes for Dulles Intl to Castries

Baltimore to Castries flights

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$721	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$560	Average$792	FlexibilityNo cancel fee	On-timeN/A

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$311+ 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 5/10. 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

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from Dulles Intl to Castries

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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 April 28, 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 April 28, 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.

Compare providers for flights from Dulles Intl to Castries

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Castries in April.

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?

Reviews of airlines servicing Castries

See what other customers who have flown with Delta, United Airlines and American Airlines from Washington, D.C. to Castries have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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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 April 28, 2025.