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

Air Canada, American Airlines, and Delta are the most popular carriers 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 August 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.

$152 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.

9:55 am - 4:40 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

29h 45m1 stop Toronto Pearson Intl

5:40 pm - 8:10 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

27h 30m1 stop Toronto Pearson Intl

$413Air Canada

Thu, Dec 10 - Mon, Dec 14

9:55 am - 4:40 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

29h 45m1 stop Toronto Pearson Intl

5:40 pm - 8:23 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

27h 43m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$417Air Canada

Thu, Dec 10 - Mon, Dec 14

3:45 pm - 3:40 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

47h 55m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

4:40 pm - 8:10 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

27h 30m1 stop Toronto Pearson Intl

$444Air Canada

Fri, Oct 23 - Fri, Oct 30

3:45 pm - 3:40 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

47h 55m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

4:40 pm - 8:23 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

27h 43m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$447Air Canada

Fri, Oct 23 - Fri, Oct 30

7:00 am - 3:04 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

7h 04m1 stop Charlotte Douglas

4:07 pm - 8:58 amUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

17h 51m1 stop Charlotte Douglas

$594American Airlines

Mon, Nov 16 - Mon, Nov 23

6:00 am - 3:03 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

8h 03m1 stop Charlotte Douglas

4:05 pm - 11:12 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

8h 07m1 stop Charlotte Douglas

$594American Airlines

Sun, Jan 17 - Fri, Jan 22

6:15 am - 2:20 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

8h 05m1 stop Charlotte Douglas

3:20 pm - 8:44 amUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

17h 24m1 stop Charlotte Douglas

$594American Airlines

Fri, Oct 23 - Fri, Oct 30

6:00 am - 3:12 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

8h 12m1 stop Atlanta Hartsfield-Jackson

4:25 pm - 9:11 amUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

17h 46m1 stop Atlanta Hartsfield-Jackson

$688Delta

Tue, Nov 3 - Wed, Nov 11

6:00 am - 2:12 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

8h 12m1 stop Atlanta Hartsfield-Jackson

3:32 pm - 12:41 amUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

9h 09m1 stop Atlanta Hartsfield-Jackson

$688Delta

Tue, Sep 22 - Tue, Sep 29

7:50 pm - 3:05 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

18h 15m1 stop Atlanta Hartsfield-Jackson

4:25 pm - 9:11 amUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

17h 46m1 stop Atlanta Hartsfield-Jackson

$688Delta

Wed, Jan 6 - Tue, Jan 19

Cheap last minute flights

Enter your travel dates to find the best prices.

9:55 am - 2:20 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

28h 25m1 stop Toronto Pearson Intl

3:15 pm - 3:24 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

24h 09m1 stop Toronto Pearson Intl

$906Air Canada

Thu, Aug 27 - Tue, Sep 1

3:45 pm - 2:20 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

22h 35m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

3:15 pm - 3:24 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

24h 09m1 stop Toronto Pearson Intl

$910Air Canada

Thu, Aug 27 - Tue, Sep 1

9:45 am - 2:20 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

28h 35m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

3:15 pm - 8:24 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

29h 09m1 stop Toronto Pearson Intl

$910Air Canada

Thu, Aug 27 - Tue, Sep 1

1:23 pm - 1:49 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

24h 26m2 stops Charlotte Douglas Miami

2:49 pm - 12:48 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

21h 59m2 stops Miami Charlotte Douglas

$915American Airlines

Sat, Aug 29 - Thu, Sep 3

1:23 pm - 1:49 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

24h 26m2 stops Charlotte Douglas Miami

3:19 pm - 10:55 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

7h 36m1 stop Charlotte Douglas

$915American Airlines

Sat, Aug 29 - Thu, Sep 3

10:27 am - 2:29 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

28h 02m1 stop Charlotte Douglas

3:19 pm - 10:55 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

7h 36m1 stop Charlotte Douglas

$920American Airlines

Sat, Aug 29 - Thu, Sep 3

9:55 am - 2:20 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

28h 25m1 stop Toronto Pearson Intl

3:15 pm - 3:24 pmUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

24h 09m1 stop Toronto Pearson Intl

$950Air Canada

Thu, Aug 27 - Tue, Sep 1

6:00 am - 2:14 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

8h 14m1 stop Atlanta Hartsfield-Jackson

3:34 pm - 12:34 amUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

9h 00m1 stop Atlanta Hartsfield-Jackson

$1,020Delta

Thu, Aug 27 - Tue, Sep 1

6:00 am - 2:14 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

8h 14m1 stop Atlanta Hartsfield-Jackson

3:34 pm - 12:34 amUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

9h 00m1 stop Atlanta Hartsfield-Jackson

$1,020Delta

Thu, Aug 27 - Wed, Sep 2

6:00 am - 2:14 pmIAD Washington, D.C. Dulles Intl-UVF Castries Hewanorra

8h 14m1 stop Atlanta Hartsfield-Jackson

3:34 pm - 12:34 amUVF Castries Hewanorra-IAD Washington, D.C. Dulles Intl

9h 00m1 stop Atlanta Hartsfield-Jackson

$1,187Delta

Thu, Aug 27 - Wed, Sep 2

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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

Nov 25

IAD4:30 pmWashington, D.C. Dulles Intl

23h 10m

1 stop

UVF4:40 pmCastries Hewanorra

Dec 2

UVF5:40 pmCastries Hewanorra

23h 05m

1 stop

IAD3:45 pmWashington, D.C. Dulles Intl

$413

Air Canada

Nov 24

IAD9:55 amWashington, D.C. Dulles Intl

53h 45m

2 stops

UVF4:40 pmCastries Hewanorra

Dec 2

UVF5:40 pmCastries Hewanorra

23h 05m

1 stop

IAD3:45 pmWashington, D.C. Dulles Intl

$417

Air Canada

Nov 25

IAD9:55 amWashington, D.C. Dulles Intl

29h 45m

2 stops

UVF4:40 pmCastries Hewanorra

Dec 2

UVF5:40 pmCastries Hewanorra

27h 43m

2 stops

IAD8:23 pmWashington, D.C. Dulles Intl

$420

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

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

Delta

Sep 6

IAD6:00 amWashington, D.C. Dulles Intl

8h 14m

1 stop

UVF2:14 pmCastries Hewanorra

Sep 15

UVF3:32 pmCastries Hewanorra

17h 37m

1 stop

IAD9:09 amWashington, D.C. Dulles Intl

$763

Delta

Sep 6

IAD6:00 amWashington, D.C. Dulles Intl

8h 14m

1 stop

UVF2:14 pmCastries Hewanorra

Sep 10

UVF3:32 pmCastries Hewanorra

9h 09m

1 stop

IAD12:41 amWashington, D.C. Dulles Intl

$918

Delta

Sep 8

IAD10:15 amWashington, D.C. Dulles Intl

27h 57m

1 stop

UVF2:12 pmCastries Hewanorra

Sep 14

UVF3:32 pmCastries Hewanorra

17h 37m

1 stop

IAD9:09 amWashington, D.C. Dulles Intl

$977

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 Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Thu 12/10

9:55 am-4:40 pm

1 stop29h 45m

Castries Hewanorra

Mon 12/14

5:40 pm-8:10 pm

1 stop27h 30m

$413

Washington, D.C.Castries

IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Thu 12/10

9:55 am-4:40 pm

1 stop29h 45m

Castries Hewanorra

Mon 12/14

5:40 pm-8:23 pm

2 stops27h 43m

$417

Washington, D.C.Castries

IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Fri 10/23

3:45 pm-3:40 pm

2 stops47h 55m

Castries Hewanorra

Fri 10/30

4:40 pm-8:10 pm

1 stop27h 30m

$444

Washington, D.C.Castries

IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Fri 10/23

3:45 pm-3:40 pm

2 stops47h 55m

Castries Hewanorra

Fri 10/30

4:40 pm-8:23 pm

2 stops27h 43m

$447

Washington, D.C.Castries

IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Mon 11/16

7:00 am-3:04 pm

1 stop7h 04m

Castries Hewanorra

Mon 11/23

4:07 pm-8:58 am

1 stop17h 51m

$594

Quickest round-trip

Washington, D.C.Castries

IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Sun 1/17

6:00 am-3:03 pm

1 stop8h 03m

Castries Hewanorra

Fri 1/22

4:05 pm-11:12 pm

1 stop8h 07m

$594

Washington, D.C.Castries

IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Fri 10/23

6:15 am-2:20 pm

1 stop8h 05m

Castries Hewanorra

Fri 10/30

3:20 pm-8:44 am

1 stop17h 24m

$594

Washington, D.C.Castries

IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Tue 11/3

6:00 am-3:12 pm

1 stop8h 12m

Castries Hewanorra

Wed 11/11

4:25 pm-9:11 am

1 stop17h 46m

$688

Washington, D.C.Castries

IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Tue 9/22

6:00 am-2:12 pm

1 stop8h 12m

Castries Hewanorra

Tue 9/29

3:32 pm-12:41 am

1 stop9h 09m

$688

Washington, D.C.Castries

IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra

IADUVF

Washington, D.C. Dulles Intl

Wed 1/6

7:50 pm-3:05 pm

1 stop18h 15m

Castries Hewanorra

Tue 1/19

4:25 pm-9:11 am

1 stop17h 46m

$688

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 January is, on average, the cheapest month to fly to Saint Lucia from Washington, D.C. Dulles Intl Airport, with most prices found around $463. If you aren’t able to travel to Saint Lucia during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $656.

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

Best Price Found	$152
Fastest flight time	7h 05m
Direct flights	None

The best one-way flight to Saint Lucia from Washington, D.C. Dulles Intl Airport in the past 72 hours is $152. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Saint Lucia found on momondo in the last 72 hours is $413.

The fastest flight from Washington, D.C. Dulles Intl Airport to Saint Lucia takes 7h 05m

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 August 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 11,995 reviews		Search American Airlines flights
Delta	PriceFrom $452	Free Cancellation	Rating 7.8 8,529 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 $487

Cheap flights from Washington, D.C. Dulles Intl Airport to Saint Lucia from $152

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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

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

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

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.

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

Best Price Found

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

Popular cities in Saint Lucia

Popular flights according to clicks in the last 7 days on momondo

Washington, D.C. Dulles Intl Airport flight routes

According to popular flight searches on momondo this year

Saint Lucia flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Saint Lucia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Saint Lucia

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

Complete your trip to Saint Lucia

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According to popular flight searches on momondo this year