$189 Find Cheap Flights from Reagan Washington National Airport 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 Reagan-National to Saint Lucia departing on 4/20. 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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Flight Deals

Book Cheap Reagan-National 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 Reagan-National 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 Reagan-National to Saint Lucia

Thu, Jun 18 - Tue, Jun 23
Air Canada Logo
8:40 pm - 2:20 pm
DCA
-
UVF
17h 40m
1 stop
Air Canada Logo
3:05 pm - 8:52 am
UVF
-
DCA
17h 47m
1 stop
$472Air Canada
Mon, Aug 24 - Fri, Aug 28
Air Canada Logo
8:40 pm - 2:20 pm
DCA
-
UVF
17h 40m
1 stop
Air Canada Logo
3:15 pm - 12:00 pm
UVF
-
DCA
20h 45m
2 stops
$480Air Canada
Mon, Aug 24 - Fri, Aug 28
Air Canada Logo
4:20 pm - 2:20 pm
DCA
-
UVF
22h 00m
2 stops
Air Canada Logo
3:15 pm - 12:00 pm
UVF
-
DCA
20h 45m
2 stops
$484Air Canada
Mon, Aug 24 - Tue, Sep 1
Air Canada Logo
12:40 pm - 2:20 pm
DCA
-
UVF
25h 40m
2 stops
Air Canada Logo
3:15 pm - 12:00 pm
UVF
-
DCA
20h 45m
2 stops
$490Air Canada
Thu, Aug 13 - Tue, Aug 18
Air Canada Logo
12:40 pm - 2:20 pm
DCA
-
UVF
25h 40m
2 stops
Air Canada Logo
3:15 pm - 12:00 pm
UVF
-
DCA
20h 45m
2 stops
$492Air Canada
Mon, Aug 31 - Tue, Sep 8
Air Canada Logo
6:55 pm - 2:20 pm
DCA
-
UVF
19h 25m
1 stop
Air Canada Logo
3:15 pm - 6:15 pm
UVF
-
DCA
27h 00m
1 stop
$496Air Canada
Mon, Jun 29 - Fri, Jul 3
Air Canada Logo
12:40 pm - 2:20 pm
DCA
-
UVF
25h 40m
2 stops
Air Canada Logo
3:05 pm - 12:00 pm
UVF
-
DCA
20h 55m
2 stops
$502Air Canada
Thu, Oct 8 - Tue, Oct 13
Air Canada Logo
12:40 pm - 2:15 pm
DCA
-
UVF
25h 35m
2 stops
Air Canada Logo
3:15 pm - 6:15 pm
UVF
-
DCA
27h 00m
1 stop
$504Air Canada
Wed, Jul 1 - Mon, Jul 6
Multiple Airlines Logo
6:55 pm - 7:00 pm
DCA
-
SLU
24h 05m
2 stops
Multiple Airlines Logo
12:35 pm - 10:31 pm
SLU
-
DCA
33h 56m
2 stops
$876Multiple Airlines
Wed, Jul 1 - Mon, Jul 6
Multiple Airlines Logo
6:59 am - 7:00 pm
DCA
-
SLU
12h 01m
2 stops
Multiple Airlines Logo
12:35 pm - 9:48 pm
SLU
-
DCA
33h 13m
3 stops
$900Multiple Airlines
Useful Info

Good to know

Low seasonApril
Cheapest flight$183
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from Reagan Washington National Airport to Castries

FAQs - booking Saint Lucia flights

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport 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 Reagan Washington National Airport to Saint Lucia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Saint Lucia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National Airport 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 Reagan Washington National Airport 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 Reagan Washington National Airport 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 Reagan Washington National Airport 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 Reagan Washington National Airport 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 airlines flying from Reagan-National to Saint Lucia

 
Need help choosing which airline to fly with from Reagan-National 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.
7.2
JetBlueOverall score based on 2945 reviews
7.2Entertainment
6.6Food
7.9Crew
7.5Comfort
7.3Boarding
Airline reviews

Entertainment and wifi were very sub-par - audio issues and no wifi

6.0 GoodClifton, Apr 2026
LAX - BOS
Read more JetBlue reviews

Entertainment and wifi were very sub-par - audio issues and no wifi

We were delayed and had to circle due to weather and had to divert for fuel. While I understand that you can’t control the weather I would have appreciated knowing that the crew wasn’t going to run out of hours and then having to spend the night in the Raleigh airport.

Messy plane that was falling apart Small screens that didn't work

I was traveling with two small kids and our TV s were the only ones not working. Informed the flight attendant who did nothing about them.

They forced me to check my hand luggage at the gate.

I specifically choose not to check bags to ensure I can proceed directly to ground transportation upon arrival. However, due to a recurring lack of cabin space, I was again forced to gate-check my rolling luggage after going through my luggage to take out electronics and batteries. This practice unilaterally changes the service agreement made at the time of purchase. JetBlue needs to find a better way to manage overhead space that honors the carry-on baggage allowance.

Still hasn’t left. Why are you asking how it was?

Flight was good wish there were more snacks options for such a long flight but stewardesses were very pleasant as was flight crew.

I was denied a plastic fork to eat my food and was told plastic forks are for paying customers who buy Jet Blue’s food. So I had to make a utensil out of a cup so nourish my body. Like a refugee. Because decency is dead.

I was especially impressed without efficiently the crew got passengers on and off. One of the stewards was slightly gruff, I thought. No big deal but that's what I noticed.

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.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

delayed due to weather. Could not communicate with family since the wifi was broken

Everything you need to know for your flight from Reagan-National to Saint Lucia

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