$216 Find Cheap Flights from Washington, D.C. to Saint Lucia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Saint Lucia departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Washington, D.C. to Saint Lucia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Saint Lucia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Saint Lucia

Tue, Jul 7 - Thu, Jul 9
American Airlines Logo
5:02 am - 2:20 pm
BWI
-
UVF
9h 18m
1 stop
American Airlines Logo
2:50 pm - 11:52 pm
UVF
-
BWI
9h 02m
1 stop
$528American Airlines
Tue, Jul 7 - Thu, Jul 9
American Airlines Logo
5:02 am - 2:20 pm
BWI
-
UVF
9h 18m
1 stop
American Airlines Logo
2:50 pm - 9:58 am
UVF
-
BWI
19h 08m
2 stops
$533American Airlines
Thu, Aug 27 - Wed, Sep 2
Multiple Airlines Logo
12:40 pm - 2:20 pm
DCA
-
UVF
25h 40m
2 stops
Multiple Airlines Logo
1:59 pm - 10:59 pm
UVF
-
DCA
9h 00m
1 stop
$534Multiple Airlines
Thu, Sep 3 - Mon, Sep 7
American Airlines Logo
4:25 pm - 2:19 pm
BWI
-
UVF
21h 54m
1 stop
American Airlines Logo
2:49 pm - 11:45 pm
UVF
-
BWI
8h 56m
1 stop
$536American Airlines
Wed, Aug 26 - Mon, Aug 31
Delta Logo
6:00 am - 2:14 pm
BWI
-
UVF
8h 14m
1 stop
Delta Logo
3:34 pm - 9:19 am
UVF
-
BWI
17h 45m
1 stop
$538Delta
Sun, Aug 9 - Fri, Aug 14
Air Canada Logo
12:40 pm - 2:20 pm
DCA
-
UVF
49h 40m
2 stops
Air Canada Logo
3:15 pm - 10:18 am
UVF
-
DCA
19h 03m
2 stops
$551Air Canada
Sun, Dec 13 - Fri, Dec 25
Air Canada Logo
12:35 pm - 4:25 pm
IAD
-
UVF
26h 50m
2 stops
Air Canada Logo
5:25 pm - 8:10 pm
UVF
-
IAD
27h 45m
1 stop
$551Air Canada
Wed, Aug 26 - Tue, Sep 1
JetBlue Logo
6:20 am - 3:06 pm
DCA
-
UVF
8h 46m
1 stop
JetBlue Logo
1:59 pm - 10:59 pm
UVF
-
DCA
9h 00m
1 stop
$570JetBlue
Fri, Aug 28 - Wed, Sep 2
JetBlue Logo
6:20 am - 3:06 pm
DCA
-
UVF
8h 46m
1 stop
JetBlue Logo
1:59 pm - 10:59 pm
UVF
-
DCA
9h 00m
1 stop
$574JetBlue
Wed, Oct 21 - Tue, Oct 27
Multiple Airlines Logo
8:40 pm - 7:00 pm
DCA
-
SLU
22h 20m
2 stops
Multiple Airlines Logo
9:10 am - 8:57 am
SLU
-
DCA
23h 47m
2 stops
$870Multiple Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Saint Lucia flights

Get data-powered insights and trends into flights from Washington, D.C. to Saint Lucia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Washington, D.C. to Saint Lucia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Saint Lucia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. to Saint Lucia is April, when tickets cost $70 (return) on average. On the other hand, the most expensive months are May and October, when the average cost of round-trip tickets is $518 and $413 respectively.

Good to know

Low seasonSeptember
Cheapest flight$216
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 36% lower on average.
Flight from Baltimore to Castries

FAQs - booking Saint Lucia flights

  • How does KAYAK find such low prices on flights from Washington, D.C. to Saint Lucia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Saint Lucia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Saint Lucia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington, D.C. to Saint Lucia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Saint Lucia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington, D.C. to Saint Lucia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Saint Lucia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington, D.C. to Saint Lucia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Washington, D.C. to Saint Lucia

 
Need help choosing which airline to fly with from Washington, D.C. to Saint Lucia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8419 reviews
7.8Comfort
7.8Entertainment
7.2Food
8.5Crew
8.1Boarding
Airline reviews

Flight got canceled 4 times, missed my connecting flight due to delays, have to wait to go home tomorrow

2.0 MediocreChelsea, Jun 2026
DAL - ATL
Read more Delta reviews

Flight got canceled 4 times, missed my connecting flight due to delays, have to wait to go home tomorrow

Third flight in two months where the crew was not there. Comfort seating does not guarantee overhead bin space. Passengers with children are allowed on the plane first - if you are flying to and from Orlando, this means half the plane has boarded before you get on. And somehow all the bin space is taken up. 3 out of 5 flights have had issues with equipment or procedure. Some of these instances caused the flight to be delayed because of a "nuisance" light. One time it was a bag that had been brought on board but did not belong to anyone so we had to return to the gate. Last night we were told the "AC" on the plane doesn't work well and we're 10th for take off- because the crew was late - and that it will get cool when we're in the air. Not sure if this is usual, but I didn't think flight crew could jump seat in first class. Movie and TV selection has not been refreshed for several months- flying one to two round trips each month easily exhausts the list of content.

Great experience nice pilot very soft and easy landing and take off

We sat on the runway for over an hour before departure. That was unwelcome.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

The small flights with Valet Luggage has a poor service

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

1didnt have wheel chair I ordered wheel chair in my ticket flight

Flight was overbooked and seats assigned to multiple passengers. Delay 1 hour to sort out.

Good but I don’t received my bags yet is been 5days still no update

It was pretty straight forward, no glitches or hidden costs

It was a short flight so, everything went smoothly and we got to where we needed to be safely.

Didn’t make it on the flight. Delayed then had to be rebooked, which in turn had me waiting at the airport for another 8 hours before next flight

No TV on the flight. The charging outlet was not working. No food, even a sandwich. The served orange was poor quality.

Selected seats 5 months prior to date. Had email confirmation and seats were not honoured. Family did not sit together

Loved and was pleasantly surprised by the food!! Request Lufthansa to help transiting passengers at Munich (confusion whether to go thru passport control or not).

The flight was comfortable and the staff were helpful and friendly. However, we did not know we were flying PAL until we arrived in Canada, so it was a bit disconcerting. In addition, which port we were leaving from was confusing.

The aircraft was fine, it’s was just the service. The flight got canceled several times and that was very inconvenient for my 69 years old mom.

My checked in luggage cost was $59, almost ticket price. The first 13 rows were empty, but fly attendant did not alow women with little boy change her middle sit, sweet boy was crying, I am so sorry for mother and passengers. At the end of the flight the cabin became impossible cold. Only good was timing of departure and early landing, but it suppose to be normal.

Seamless flight, didn’t feel like five hours at all very smooth ride. Watched two good movies didn’t even realize I was on a plane. The staff were extremely nice and helpful.

I tried to book a flight with Jet Blue. Your third party company hijacked my attempt with a website that looked like I was booking with Jet Blue. I realized it when I paid. I tried to cancel and was told by a man in India that there were no refunds. $735 stolen, Thanks Kayak!

It was inexplicably canceled and we are stuck in LA, haven't gotten home and it has been an inconvenience having lost work (on unpaid leave for my husband).

I like everything. Blythe at DCA is the absolute best!

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

You should have had Wifi to make it much enjoyable.

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

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

Cabin class types available on flights to Saint Lucia

Cabin classes available on flights to Saint Lucia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.