$95 Find Cheap Flights 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 the United States to Saint Lucia departing on 9/5. 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.
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1 adult, Economy, 0 bags

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Book Cheap Saint Lucia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights 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 to Saint Lucia

Wed, Sep 2 - Wed, Sep 9
Delta Logo
5:45 am - 2:08 pm
BOS
-
UVF
8h 23m
1 stop
Delta Logo
3:28 pm - 1:06 am
UVF
-
BOS
9h 38m
1 stop
$290Delta
Mon, Apr 27 - Thu, Apr 30
American Airlines Logo
8:30 pm - 2:13 pm
BOS
-
UVF
17h 43m
2 stops
American Airlines Logo
3:28 pm - 10:01 am
UVF
-
BOS
18h 33m
1 stop
$295American Airlines
Mon, Mar 23 - Mon, Mar 30
American Airlines Logo
6:25 pm - 1:48 pm
BOS
-
UVF
19h 23m
1 stop
American Airlines Logo
3:58 pm - 10:57 am
UVF
-
BOS
18h 59m
2 stops
$302American Airlines
Wed, May 20 - Sat, May 23
American Airlines Logo
5:40 pm - 12:02 pm
BOS
-
UVF
18h 22m
2 stops
American Airlines Logo
1:02 pm - 7:39 am
UVF
-
BOS
18h 37m
2 stops
$320American Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
6:00 am - 1:31 pm
BOS
-
UVF
7h 31m
1 stop
United Airlines Logo
2:35 pm - 11:07 am
UVF
-
BOS
20h 32m
2 stops
$334United Airlines
Fri, Jun 5 - Fri, Jun 12
JetBlue Logo
10:38 am - 3:19 pm
JFK
-
UVF
4h 41mnonstop
JetBlue Logo
4:20 pm - 9:15 pm
UVF
-
JFK
4h 55mnonstop
$413JetBlue
Thu, Apr 9 - Thu, Apr 16
JetBlue Logo
1:10 pm - 5:47 pm
JFK
-
UVF
4h 37mnonstop
JetBlue Logo
3:57 pm - 9:01 pm
UVF
-
JFK
5h 04mnonstop
$414JetBlue
Wed, Aug 12 - Thu, Aug 27
Delta Logo
7:00 am - 2:08 pm
BWI
-
UVF
7h 08m
1 stop
Delta Logo
3:28 pm - 12:16 am
UVF
-
BWI
8h 48m
1 stop
$418Delta
Sun, Apr 26 - Thu, Apr 30
Caribbean Airlines Logo
5:00 am - 5:40 pm
JFK
-
SLU
12h 40m
2 stops
Caribbean Airlines Logo
5:50 pm - 5:30 am
SLU
-
JFK
11h 40m
1 stop
$436Caribbean Airlines
Thu, Apr 23 - Sun, May 3
Caribbean Airlines Logo
1:10 am - 2:35 pm
JFK
-
SLU
13h 25m
1 stop
Caribbean Airlines Logo
6:00 pm - 11:55 pm
SLU
-
JFK
29h 55m
2 stops
$447Caribbean Airlines
Booking Insights

KAYAK's insights & trends for flights to Saint Lucia

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

What is the cheapest flight to Saint Lucia?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Saint Lucia from the United States found in the last 72 hours was to Castries, at $248 round-trip. The most popular route is Atlanta (ATL) to Castries (UVF) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $248.

How much is a flight to Saint Lucia?

The average and cheapest price for all round-trip flights to Saint Lucia from each origin found by users searching on KAYAK in the last month.

A flight to Saint Lucia costs $611 on average. The cheapest price found on KAYAK in the last 2 weeks was $134 for the route Newark Airport (EWR) to Castries (UVF). The most popular routes on KAYAK are New York to Castries which costs $688 on average, and Charlotte to Castries, which costs $693 on average.

See prices from:

What is the cheapest month to fly from the United States to Saint Lucia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United States 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 the United States to Saint Lucia is January, when tickets cost $558 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of round-trip tickets is $883 and $827 respectively.

Which is the cheapest airport to fly into in Saint Lucia?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Saint Lucia is Castries Hewanorra Airport (UVF), with an average flight price of $335.

Good to know

Low seasonSeptember
Cheapest flight$95
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Boston to Castries

FAQs - booking Saint Lucia flights

  • How does KAYAK find such low prices on flights from the United States 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 the United States to Saint Lucia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United States 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 the United States 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 the United States 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 the United States 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 the United States to Saint Lucia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Saint Lucia?

    Based on KAYAK data, the cheapest day to fly to Saint Lucia is Monday where round-trip tickets can be as cheap as $638. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $729 on average.

Top tips for finding cheap flights to Saint Lucia

  • Looking for cheap airfare to Saint Lucia? 25% of our users found round-trip tickets to Saint Lucia for the following prices or less: From Miami $571, from Boston $607
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Saint Lucia flight deals.

Reviews of the top 5 airlines flying to Saint Lucia

 
Need help choosing which airline to fly with from the United States 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
Caribbean AirlinesOverall score based on 215 reviews
8.3Crew
6.6Entertainment
6.7Food
7.9Boarding
7.7Comfort
Airline reviews

Caribbean airline sucks… they have a promotion to bring 60lbs in your suitcase.. meanwhile when you reached your destination (JFK)… your suitcase didn’t show up. They had too much weight so the suitcase was left in Guyana… like WTF????? Stupid promotion.. just like the uneducated people working with the airline. The representative said there is nothing she can do about it… will not use them again.

2.0 MediocreRohan, Mar 2026
GEO - JFK
Read more Caribbean Airlines reviews

Caribbean airline sucks… they have a promotion to bring 60lbs in your suitcase.. meanwhile when you reached your destination (JFK)… your suitcase didn’t show up. They had too much weight so the suitcase was left in Guyana… like WTF????? Stupid promotion.. just like the uneducated people working with the airline. The representative said there is nothing she can do about it… will not use them again.

Boarding the flight was smooth and the flight was not full so i had an extra seat essentially

There was no flight. They canceled the flight with no knowledge to me, and I still haven’t received a refund

Overall, it was good. There was no food or entertainment, which is why I put poor (it wasn't an issue though).

Nothing, they could have made some accommodation for an awful experience. Me and my family were not informed properly we we separated. They took me off the original flight i booked. I booked our flight at one price and called me and told me they were not honoring my rate and they charged me double of what I paid. Me and my family don’t want to ever use your services again.

This flight was great. The plane took off and arrived at the destination an hour early. The crew was pleasant. The food and entertainment options are minimal but adequate for a 1-hour flight. They passed out water and quickly supplied me with a fresh magazine since the previous one had the crossword section filled out.

Better movie and tv selections. Also, the overnight flight to Trinidad from Toronto, the staff were not very attentive. I did not see them for at least half the fight. They were behind their curtain a lot of the time, and they did not check on us before landing to make sure all landing requirements were met.

Little space for luggage and the flight was delayed by an hour.

The flight was delayed over a hour and that was over 15 hours in advance not good

At check in I had to pay for my seat that I already paid for on purchasing my ticket. The flight was over an hour late and the plane smelt gross.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

Delayed. Hot. Passenger next to me was so large I couldn’t move.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

The boarding process doesn't make sense since some people that will sit behind your rows are boarded before you and then they take up the luggage space above your head. I then have to wait for people to get off the plane before I can go back to get my luggage.

Good flight. Connector flight was delayed so made a short turnaround in Atlanta which was stressful. Otherwise, great crew, Staff in ATL was very informative about the delay and ensured people their connections were fine. Notified the ones that were not. Great communication.

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

They made me check my bag and I didn't need to as there was overhead space available. I paid for a seat towards the front of the plane and it didn't recline. I requested a refund and they declined to give me one.

I have to congratulate Kayak (and Dylan the Chatdeal agent) because because when we decided extended our trip in Florida by two days, there were many direct flights oprions back to Boston available on the Friday we wanted to fly on the JetBlue website, but once I canceled the original JetBlue flight on their website, those direct return options disappeared immediatley! I think it's a game JetBlue plays. . Luckily, I checked Kayak and they had a direct flight that wasn't appearing on JetBlue's website and so I booked it, and we were able to fly home direct through the Kayak booking when JetBlue was offering nothing (even though I have been a True Blue member for 20 years, and also am a Mosaic member). So much for loyalty- their algorithm for booking is like a shell game. JetBlue used to be a good company but now they're worse than anyone. Also I was originally booked this trip to Florida, two months before the departure date, I booked the trip on JetBlue's website and then after the payment part, they said there was a problem and that I needed to do the booking again, so when I immediately went to rebook , the price had gone up 30%! I called them and it sounded like they had heard this so many times before and the guy told me to check back in 10 minutes and the price would be back to where it was when I was booking- it but it never was. How could the price go up 30% in one minute two months before the flight???? They're playing a game with their customers. Anyways, I booked a cheaper flight then at a less convenient time. So fast forward two months the night before the 7 AM flight, they sent me an email at midnight when I was sleeping to let me know that my flight at 7 AM had been canceled. The only thing they offered was a flight that night from from a different airport (Providence) to a different airport in Florida (West Palm Beach) or a flight two days later. No compensation, nothing. They couldn't of tried to get another plane to the Boston airport? They had all night to do it. I passed on their ridiculous options and flew with Delta and it was a great experience. Of course, I had to pay a lot more booking on the same day, but JetBlue doesn't care. I put in a lengthy complaint with the agent who assured me someone would get back to me by email within three days and I haven't heard a thing. JetBlue used to be a good company but now they're among the worst. The only thing they still have is decent legroom, but the corporate bean counters will probably start taking that away too.

We were made to wait in the airport for six hours for a flight that was ultimately canceled.

Both flights were significantly delayed. The flight experience itself was great.

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

The crew for the flight was A+ top notch. They were friendly and professional and made the flight a very relaxing and enjoable.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

No included food for a 5 hour flight and the entertainment was only accessible if you had wired headphones (not provided). Otherwise though, great and smooth flying and customer service.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

The crew was excellent and overall the flight was good. No complaints.

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

Never had such a lazy first class attendant. Literally spent 60%+ of the flight playing games on her personal phone making up excuses of why she was unavailable.

The flight attendants and the service is getting worse by the day.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Like all of the flights I took to get down to Dallas. They were delayed

Other than nearly three hour delay for maintenance issues, everything went smooth

Plane from partner PSA was filthy. Plastic needs to be thoroughly cleaned. Really disgusting to look at and wonder about cleanliness of parts less visible.

The baggage claim experience was poor. The plane crew and the AA app said that checked baggage in CLT would be at carousel 7 but the sign at Baggage Claim said carousel 1. The carousel 1 sign had the correct flight # listed above the belt. But the luggage never came. I went to an AA baggage claim office after about 1 hour and the clerk directed me to another AA room that was poorly marked, with a closed door and no obvious way to know what to do. Finally someone opened the door and my bag was inside. The clerk was totally unable to explain why.

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

Everything you need to know for your flight 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.