$163 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 1/25. 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 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

Mon, Feb 9 - Thu, Feb 12
Delta Logo
6:00 am - 3:05 pm
DCA
-
UVF
8h 05m
1 stop
Delta Logo
4:25 pm - 11:32 pm
UVF
-
DCA
8h 07m
1 stop
$368Delta
Tue, Mar 3 - Wed, Mar 11
American Airlines Logo
5:00 am - 2:48 pm
DCA
-
UVF
8h 48m
1 stop
American Airlines Logo
3:58 pm - 9:19 am
UVF
-
DCA
17h 21m
2 stops
$373American Airlines
Tue, Jan 27 - Sat, Jan 31
American Airlines Logo
6:59 am - 3:03 pm
DCA
-
UVF
7h 04m
1 stop
American Airlines Logo
3:10 pm - 10:03 am
UVF
-
DCA
19h 53m
1 stop
$374American Airlines
Sat, Feb 28 - Thu, Mar 5
American Airlines Logo
7:41 pm - 3:18 pm
DCA
-
UVF
18h 37m
1 stop
American Airlines Logo
4:58 pm - 12:36 am
UVF
-
DCA
8h 38m
1 stop
$375American Airlines
Tue, Mar 3 - Wed, Mar 11
Air Canada Logo
4:15 pm - 4:20 pm
DCA
-
UVF
23h 05m
2 stops
Air Canada Logo
4:15 pm - 12:19 pm
UVF
-
DCA
20h 04m
2 stops
$412Air Canada
Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
6:00 am - 3:58 pm
DCA
-
UVF
8h 58m
1 stop
American Airlines Logo
3:58 pm - 9:10 am
UVF
-
DCA
17h 12m
1 stop
$428American Airlines
Mon, Mar 2 - Tue, Mar 10
American Airlines Logo
10:10 pm - 3:58 pm
DCA
-
UVF
16h 48m
2 stops
American Airlines Logo
2:48 pm - 9:28 am
UVF
-
DCA
18h 40m
2 stops
$433American Airlines
Sun, Mar 8 - Thu, Mar 12
American Airlines Logo
7:59 pm - 2:58 pm
DCA
-
UVF
18h 59m
1 stop
American Airlines Logo
3:58 pm - 9:10 am
UVF
-
DCA
17h 12m
1 stop
$437American Airlines
Sun, Mar 8 - Wed, Mar 11
American Airlines Logo
7:59 pm - 2:58 pm
DCA
-
UVF
18h 59m
1 stop
American Airlines Logo
2:48 pm - 9:19 am
UVF
-
DCA
18h 31m
2 stops
$442American Airlines
Wed, Feb 11 - Wed, Feb 18
Multiple Airlines Logo
4:15 pm - 7:00 pm
DCA
-
SLU
25h 45m
2 stops
Multiple Airlines Logo
12:35 pm - 10:21 am
SLU
-
DCA
22h 46m
2 stops
$950Multiple Airlines
Booking Insights

KAYAK's insights & trends for Reagan-National to Saint Lucia flights

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

Which airlines provide the cheapest flights from Washington, D.C. Reagan-National Airport to Saint Lucia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. Reagan-National Airport to Saint Lucia were found on Delta ($368) and American Airlines ($368).

Good to know

Low seasonAugust
Cheapest flight$134
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 46% lower on average.
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 3 airlines serving 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.
7.9
DeltaOverall score based on 8058 reviews
8.5Crew
7.9Comfort
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

4.0 OkayUros, Jan 2026
MEM - ATL
Read more Delta reviews

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Inexperienced boarding crew allowed too many bags on to a full flight and delayed takeoff causing a missed connection and unplanned overnight stay. There was a hotel at the airport but Delta would not pay for it offering only to shuttle me to an area hotel. Never even offerred so much as an apology by anyone working for Delta.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

The seats weren’t reclining even though it wasn’t as exit seat

It was good because we traveled without luggage, carry on only.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

The seats from lax to DFW was so tight that I could not move my legs . No WiFi and had to pay . Not a good selection of entertainment

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

The professionals have excellent customer service, the seats don´t have enough space.

We were upgraded to First Class and it was a great flight

Amazing I love American. I’ll never fly anyone else if I can help it.

I love American. I’ll never fly anyone else if I can help it.

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

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

First time flying with JetBlue and never again. I went to the counter to request meet and assist because I'm 74 and my wife is 79. I walk with a cane and my wife is handicapped and has her own wheel chair. I told the agent that my wife and luggage was at the entrance door. The ticketing agent said to me that they don't offer meet and assist. I need to bring them our luggage and then go back and get my wife in order to get my boarding pass. As I went back to get my luggage a Southwest agent along with a TSA agent recognized the situation and came over and took my wife and luggage to the JetBlue ticketing counter alongside the line and told the JetBlue agent to issue to take our luggage as soon as they could.

Flight was fine, price was good but food onboard was abysmal. I was on there for breakfast and lunch and dinner 845am EST to 845pm GMT and all I got was a yoghurt parfait, fruit and a piece of cake. Later snacks included an ice-cream brownie and a pizza twist. I was hungry by the time I landed and the airport amenities were closed. Not happy.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

Good. No issues except a slight delay. Crew came in late.

Not a pleasant experience, service was poor. Didn't like it

It was good. I prefer JB over other airlines.I just wish we had headphones for the films, but other than that - good.

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

Checking In on JetBlue site was impossible. It hung up on REAL ID. Even my Global Entry did not help. Luckily, on Kayak site it was a breeze. Entire flight the temperature was COLD! Otherwise the crew was great!

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

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

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