What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Saint Lucia?

Air Canada is the most popular carrier operating from Washington, D.C. Dulles Intl to Saint Lucia

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Saint Lucia?

As of June 2026, there are 2 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Saint Lucia.

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Saint Lucia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Saint Lucia.

What documentation or ID do you need to fly to Saint Lucia?

The travel and health documents you'll need for your trip to Saint Lucia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$156 Cheap Flights from Washington, D.C. Dulles Intl Airport to Saint Lucia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Saint Lucia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:35 pm - 2:20 pm

IAD

UVF

49h 45m

2 stops

3:15 pm - 4:07 pm

UVF

IAD

24h 52m

1 stop

$409Air Canada

Wed, Aug 26 - Tue, Sep 1

4:20 pm - 2:10 pm

IAD

UVF

21h 50m

1 stop

3:05 pm - 3:24 pm

UVF

IAD

24h 19m

1 stop

$425Air Canada

Mon, Jul 6 - Fri, Jul 10

3:45 pm - 2:10 pm

IAD

UVF

22h 25m

2 stops

3:05 pm - 3:24 pm

UVF

IAD

24h 19m

1 stop

$429Air Canada

Mon, Jul 6 - Fri, Jul 10

10:10 pm - 2:10 pm

IAD

UVF

40h 00m

2 stops

3:05 pm - 3:24 pm

UVF

IAD

24h 19m

1 stop

$430Air Canada

Wed, Jul 8 - Fri, Jul 17

10:10 pm - 2:10 pm

IAD

UVF

40h 00m

2 stops

3:05 pm - 11:12 am

UVF

IAD

20h 07m

2 stops

$433Air Canada

Wed, Jul 8 - Fri, Jul 17

3:45 pm - 2:10 pm

IAD

UVF

22h 25m

2 stops

3:05 pm - 7:44 am

UVF

IAD

16h 39m

2 stops

$450Air Canada

Mon, Jul 6 - Fri, Jul 10

5:06 pm - 2:20 pm

IAD

UVF

45h 14m

2 stops

3:15 pm - 4:32 pm

UVF

IAD

25h 17m

1 stop

$472Air Canada

Sun, Jun 21 - Fri, Jun 26

4:20 pm - 2:20 pm

IAD

UVF

22h 00m

1 stop

3:15 pm - 3:24 pm

UVF

IAD

24h 09m

1 stop

$489Air Canada

Mon, Aug 24 - Fri, Aug 28

4:20 pm - 7:00 pm

IAD

SLU

26h 40m

2 stops

12:35 pm - 3:24 pm

SLU

IAD

26h 49m

2 stops

$915Multiple Airlines

Tue, Aug 25 - Wed, Sep 2

4:20 pm - 7:00 pm

IAD

SLU

26h 40m

2 stops

3:45 pm - 3:24 pm

SLU

IAD

47h 39m

2 stops

$930Multiple Airlines

Sat, Aug 29 - Thu, Sep 3

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Air Canada flights from Washington, D.C. Dulles Intl Airport to Saint Lucia

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Saint Lucia flight tickets

Air Canada

Aug 26

IAD12:35 pmWashington, D.C. Dulles Intl

49h 45m

2 stops

UVF2:20 pmCastries Hewanorra

Sep 1

UVF3:15 pmCastries Hewanorra

24h 52m

1 stop

IAD4:07 pmWashington, D.C. Dulles Intl

$409

Air Canada

Jul 8

IAD10:10 pmWashington, D.C. Dulles Intl

40h 00m

2 stops

UVF2:10 pmCastries Hewanorra

Jul 17

UVF3:05 pmCastries Hewanorra

24h 19m

1 stop

IAD3:24 pmWashington, D.C. Dulles Intl

$430

Air Canada

Jul 8

IAD10:10 pmWashington, D.C. Dulles Intl

40h 00m

2 stops

UVF2:10 pmCastries Hewanorra

Jul 17

UVF3:05 pmCastries Hewanorra

20h 07m

2 stops

IAD11:12 amWashington, D.C. Dulles Intl

$433

American Airlines flights from Washington, D.C. Dulles Intl Airport to Saint Lucia

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Saint Lucia flight tickets

American Airlines

Jun 20

IAD8:22 pmWashington, D.C. Dulles Intl

17h 54m

1 stop

UVF2:16 pmCastries Hewanorra

Jun 27

UVF3:16 pmCastries Hewanorra

8h 57m

1 stop

IAD12:13 amWashington, D.C. Dulles Intl

$808

American Airlines

Jun 20

IAD8:22 pmWashington, D.C. Dulles Intl

17h 24m

2 stops

UVF1:46 pmCastries Hewanorra

Jun 27

UVF3:16 pmCastries Hewanorra

17h 34m

1 stop

IAD8:50 amWashington, D.C. Dulles Intl

$813

American Airlines

Jun 20

IAD8:22 pmWashington, D.C. Dulles Intl

17h 24m

2 stops

UVF1:46 pmCastries Hewanorra

Jun 28

UVF3:16 pmCastries Hewanorra

8h 57m

1 stop

IAD12:13 amWashington, D.C. Dulles Intl

$818

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Wed 8/26

12:35 pm-2:20 pm

2 stops49h 45m

Castries Hewanorra

Tue 9/1

3:15 pm-4:07 pm

1 stop24h 52m

$409

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 7/6

4:20 pm-2:10 pm

1 stop21h 50m

Castries Hewanorra

Fri 7/10

3:05 pm-3:24 pm

1 stop24h 19m

$425

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 7/6

3:45 pm-2:10 pm

2 stops22h 25m

Castries Hewanorra

Fri 7/10

3:05 pm-3:24 pm

1 stop24h 19m

$429

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Wed 7/8

10:10 pm-2:10 pm

2 stops40h 00m

Castries Hewanorra

Fri 7/17

3:05 pm-3:24 pm

1 stop24h 19m

$430

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Wed 7/8

10:10 pm-2:10 pm

2 stops40h 00m

Castries Hewanorra

Fri 7/17

3:05 pm-11:12 am

2 stops20h 07m

$433

Quickest round-trip

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 7/6

3:45 pm-2:10 pm

2 stops22h 25m

Castries Hewanorra

Fri 7/10

3:05 pm-7:44 am

2 stops16h 39m

$450

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sun 6/21

5:06 pm-2:20 pm

2 stops45h 14m

Castries Hewanorra

Fri 6/26

3:15 pm-4:32 pm

1 stop25h 17m

$472

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 8/24

4:20 pm-2:20 pm

1 stop22h 00m

Castries Hewanorra

Fri 8/28

3:15 pm-3:24 pm

1 stop24h 09m

$489

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

Tue 8/25

4:20 pm-7:00 pm

2 stops26h 40m

Castries George F. L. Charle

Wed 9/2

12:35 pm-3:24 pm

2 stops26h 49m

$915

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

Sat 8/29

4:20 pm-7:00 pm

2 stops26h 40m

Castries George F. L. Charle

Thu 9/3

3:45 pm-3:24 pm

2 stops47h 39m

$930

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Saint Lucia

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

Prices

Airlines

What is the cheapest month to fly to Saint Lucia?

The month of August is, on average, the cheapest month to fly to Saint Lucia from Washington, D.C. Dulles Intl Airport, with most prices found around $342. If you aren’t able to travel to Saint Lucia during the month of August, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $347.

Cheap Washington, D.C. Dulles Intl Airport to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Saint Lucia

Fastest flight time	7h 10m
Direct flights	None

The fastest flight from Washington, D.C. Dulles Intl Airport to Saint Lucia takes 7h 10m

There are no direct flights from Washington, D.C. Dulles Intl Airport to Saint Lucia. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Saint Lucia.

Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Saint Lucia

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Saint Lucia?
Prices for flights from Washington, D.C. Dulles Intl Airport to Saint Lucia were last updated today.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Saint Lucia?
As of June 2026, there are 2 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Saint Lucia.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Saint Lucia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The travel and health documents you'll need for your trip to Saint Lucia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Saint Lucia

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Saint Lucia with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $351	Free Cancellation	Rating 7.1 11,640 reviews		Search American Airlines flights
Delta	PriceFrom $452	Free Cancellation	Rating 7.9 8,394 reviews		Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint Lucia from Washington, D.C..

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

All flight searches from Washington, D.C. to Saint Lucia on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Saint Lucia.

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

Yes momondo offers price alerts on flights to Saint Lucia from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Flights to Castriesfrom $515

Cheap flights from Washington, D.C. Dulles Intl Airport to Saint Lucia from $156

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Air Canada flights from Washington, D.C. Dulles Intl Airport to Saint Lucia

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Saint Lucia flight tickets

American Airlines flights from Washington, D.C. Dulles Intl Airport to Saint Lucia

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Saint Lucia flight tickets

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

See travel insights to Saint Lucia from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Saint Lucia

What is the cheapest month to fly to Saint Lucia?

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Saint Lucia?

Cheap Washington, D.C. Dulles Intl Airport to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Saint Lucia

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Saint Lucia

Best airlines flying from Washington, D.C. Dulles Intl Airport to Saint Lucia

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Saint Lucia with momondo

Why use momondo?

An easier way to manage your Saint Lucia 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.

Find better results for your trip to Saint Lucia

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Washington, D.C. Dulles Intl Airport flight routes

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List of cabin classes available on flights landing in Saint Lucia. Availability may vary depending on flight origin and airline.

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