$166 Find Cheap Flights from Philadelphia 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 Philadelphia to Saint Lucia departing on 5/29. 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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Best Saint Lucia Flight Deals from Philadelphia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Castries
Castries3 stops$1,408
Castries
Castries3 stops$1,408

Cheap Flights from Philadelphia to Saint Lucia

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

Recent round-trip flight deals from Philadelphia to Saint Lucia

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Philadelphia to Saint Lucia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Air Canada Logo
3:25 pm - 2:15 pmPHL-UVF
22h 50m2 stops
Air Canada Logo
3:10 pm - 2:38 pmUVF-PHL
23h 28m2 stops
$418Air Canada
Find Deal
Mon, Sep 8 - Fri, Sep 12
Air Canada Logo
7:30 am - 2:15 pmPHL-UVF
30h 45m1 stop
Air Canada Logo
3:10 pm - 10:06 pmUVF-PHL
30h 56m2 stops
$428Air Canada
Find Deal
Mon, Jun 9 - Fri, Jun 13
Air Canada Logo
3:20 pm - 2:15 pmPHL-UVF
22h 55m2 stops
Air Canada Logo
3:10 pm - 9:54 amUVF-PHL
18h 44m1 stop
$440Air Canada
Find Deal
Mon, Jul 7 - Fri, Jul 11
Air Canada Logo
7:30 am - 2:15 pmPHL-UVF
30h 45m1 stop
Air Canada Logo
3:10 pm - 9:54 amUVF-PHL
18h 44m1 stop
$450Air Canada
Find Deal
Mon, Jul 7 - Fri, Jul 11
Delta Logo
6:45 am - 2:20 pmPHL-UVF
7h 35m1 stop
Delta Logo
3:35 pm - 12:27 amUVF-PHL
8h 52m1 stop
$547Delta
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Sun, Aug 10 - Thu, Aug 14
American Airlines Logo
9:15 pm - 2:05 pmPHL-UVF
16h 50m2 stops
American Airlines Logo
3:15 pm - 7:49 amUVF-PHL
16h 34m1 stop
$552American Airlines
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Mon, Aug 18 - Fri, Aug 22
American Airlines Logo
5:33 pm - 2:20 pmPHL-UVF
20h 47m1 stop
American Airlines Logo
3:25 pm - 9:39 amUVF-PHL
18h 14m1 stop
$555American Airlines
Find Deal
Sat, Aug 2 - Thu, Aug 7
Delta Logo
5:55 am - 2:15 pmPHL-UVF
8h 20m1 stop
Delta Logo
3:38 pm - 12:23 amUVF-PHL
8h 45m1 stop
$572Delta
Find Deal
Fri, Sep 5 - Fri, Sep 12
 Logo
9:45 am - 2:15 pmPHL-UVF
52h 30m2 stops
 Logo
2:35 pm - 9:34 pmUVF-PHL
30h 59m2 stops
Wed, Jun 4 - Sun, Jun 8
 Logo
3:20 pm - 2:15 pmPHL-UVF
46h 55m2 stops
 Logo
2:35 pm - 10:39 pmUVF-PHL
32h 04m2 stops
Wed, Jun 11 - Sun, Jun 15
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KAYAK's insights & trends for Philadelphia to Saint Lucia flights

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

What is the cheapest Philadelphia to Saint Lucia flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Philadelphia to Saint Lucia.

The cheapest ticket to Saint Lucia from Philadelphia found in the last 72 hours was to Castries, at $613 round-trip. The most popular route is from Philadelphia (PHL) to Castries (UVF), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $613.

Can I save money by flying with a layover from Philadelphia to Saint Lucia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $852 on average.

What is the cheapest month to fly from Philadelphia to Saint Lucia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia 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 Philadelphia to Saint Lucia is September, when tickets cost $435 (return) on average. On the other hand, the most expensive months are December and April, when the average cost of round-trip tickets is $1,960 and $1,005 respectively.


Good to know

Low seasonSeptember
High seasonMarch
Cheapest flight$166
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Philadelphia to Castries

FAQs - booking Saint Lucia flights

  • How does KAYAK find such low prices on flights from Philadelphia 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 Philadelphia to Saint Lucia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Philadelphia 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 Philadelphia 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 Philadelphia 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 Philadelphia 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 Philadelphia 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 time of day to fly to Saint Lucia?

    The cheapest time of day to fly to Saint Lucia is generally in the morning, when round-trip flights cost $765 on average. Morning departures are around 4% cheaper than evening flights, on average. The most expensive time of day to fly to Saint Lucia is generally in the evening, which is peak travel time and where the average cost of a ticket is $800.

Top airlines flying from Philadelphia to Saint Lucia

Need help choosing which airline to fly with from Philadelphia 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.
8.0
DeltaOverall score based on 7936 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

Our bag was lost so that made unnecessary chaos On our trip

6.0 GoodBarbara, Apr 2025JFK - FCO
Read more Delta reviews

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

late again! but its my only option to not take 9 hours to get to Memphis

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

I had a very unpleasant encounter with one man from customer service: he was extremely rude and miserable. And his condition was reflected on his decision to send me to the worst airport hotel and get an awful flight connection. My hotel shuttle had never arrived and I had to book another hotel. People served by other representatives got a much better treatment and deal.

The flight left a bit late, but arrived close to time expected…With the flight being close to full the crew did well serving drinks to all in a very timely fashion. The flight was a pleasure…

They didn't have any gluten-free snacks, oddly, which I require...or any flavored soda water or decaf tea options, which seems to be standard.

My flight back my reservations were list because they said I didn't pay my pet fee when I had a receipt

Everything you need to know for your flight from Philadelphia to Saint Lucia

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