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

Currently, August is the cheapest month in which you can book a flight from Saint Lucia to Washington, D.C. (average of $292). Flying from Saint Lucia to Washington, D.C. in April is currently the most expensive (average of $337). 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.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Saint Lucia to Washington, D.C. as you normally would.

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

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

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

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

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

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

$233+ Flights from Saint Lucia to Washington, D.C.

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Find flight deals from Saint Lucia to Washington, D.C.

One-way flights from Saint Lucia to Washington, D.C.
Search for one-way flight options from Saint Lucia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Fri 11/145:15 pmUVF - DCA

1 stop25h 50mAir Canada

Deal found 9/16

$233

Mon 12/15:15 pmUVF - DCA

2 stops20h 04mAir Canada

Deal found 9/15

$238

Wed 12/105:15 pmUVF - DCA

2 stops20h 04mAir Canada

Deal found 9/14

$265

Mon 12/15:15 pmUVF - BWI

3 stops24h 34mMultiple Airlines

Deal found 9/15

$357

Sat 9/272:06 pmUVF - DCA

1 stop8h 50mJetBlue

Deal found 9/15

$461

Mon 12/14:04 pmUVF - BWI

1 stop19h 10mAmerican Airlines

Deal found 9/15

$481

Mon 12/19:50 amUVF - DCA

3 stops24h 05mMultiple Airlines

Deal found 9/15

$644

Sun 1/44:54 pmUVF - DCA

1 stop17h 15mAmerican Airlines

Deal found 9/14

$773

Sun 1/43:53 pmUVF - BWI

1 stop8h 50mAmerican Airlines

Deal found 9/14

$878

Sun 1/49:50 amUVF - BWI

3 stops48h 24mMultiple Airlines

Deal found 9/15

$921

Sat 9/273:17 pmUVF - DCA

2 stops16h 42mAmerican Airlines

Deal found 9/14

$1,228

Sun 1/45:15 pmUVF - DCA

2 stops29h 41mAir Canada

Deal found 9/15

$1,319

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

CastriesWashington, D.C.

UVF - DCA

UVFDCA

Castries Hewanorra

Wed 12/10

5:15 pm-8:55 am

1 stop16h 40m

$233

CastriesWashington, D.C.

UVF - DCA

UVFDCA

Castries Hewanorra

Fri 11/14

5:15 pm-3:31 pm

2 stops23h 16m

$233

CastriesBaltimore

UVF - BWI

UVFBWI

Castries Hewanorra

Mon 12/1

5:15 pm-4:49 pm

3 stops24h 34m

$357

CastriesWashington, D.C.

UVF - DCA

UVFDCA

Castries Hewanorra

Sat 9/27

2:06 pm-10:56 pm

1 stop8h 50m

$461

CastriesBaltimore

UVF - BWI

UVFBWI

Castries Hewanorra

Mon 12/1

4:04 pm-10:14 am

1 stop19h 10m

$481

CastriesWashington, D.C.

UVF - DCA

UVFDCA

Castries Hewanorra

Mon 12/1

9:50 am-8:55 am

3 stops24h 05m

$644

CastriesBaltimore

UVF - BWI

UVFBWI

Castries Hewanorra

Sun 1/4

3:53 pm-11:43 pm

1 stop8h 50m

$878

CastriesBaltimore

UVF - BWI

UVFBWI

Castries Hewanorra

Sun 1/4

9:50 am-9:14 am

3 stops48h 24m

$921

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Saint Lucia 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 Saint Lucia to Washington, D.C.

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Related info for your journey

Can I find deals for flights from Saint Lucia to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Saint Lucia to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Saint Lucia to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Lucia to Washington, D.C..
Can I find deals for business class flights from Saint Lucia to Washington, D.C.?
Yes. Cheapflights offers flight deals from Saint Lucia to Washington, D.C. 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 Saint Lucia to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Saint Lucia to Washington, D.C. (average of $292). Flying from Saint Lucia to Washington, D.C. in April is currently the most expensive (average of $337). 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

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

National Harbor

Dundalk

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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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Saint Lucia to Washington, D.C.

One-way flights from Saint Lucia to Washington, D.C.
Search for one-way flight options from Saint Lucia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Search for one-way flight options from Saint Lucia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

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

Related info for your journey

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

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

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

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

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

Traveling to a place near Washington, D.C.?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Saint Lucia to Washington, D.C.

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Complete your trip

Complete your trip to Washington, D.C. by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Saint Lucia to Washington, D.C. by cabin class

Find flights from Saint Lucia to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Saint Lucia and Washington, D.C. flights

Browse other Saint Lucia and Washington, D.C. flight options. Last updated on September 16, 2025.

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$233+ Cheap flights from Saint Lucia to Washington, D.C. (WAS)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Saint Lucia to Washington, D.C.

One-way flights from Saint Lucia to Washington, D.C.Search for one-way flight options from Saint Lucia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Search for one-way flight options from Saint Lucia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

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

Related info for your journey

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

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

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

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

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

Traveling to a place near Washington, D.C.?

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 Saint Lucia to Washington, D.C.

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

100% Free

Book with Flexibility

Travel Smart

One-way flights from Saint Lucia to Washington, D.C.
Search for one-way flight options from Saint Lucia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.