$157 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 3/29. 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.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Philadelphia 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 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Saint Lucia

Fri, Jun 19 - Tue, Jun 23
Air Canada Logo
6:00 am - 2:20 pm
PHL
-
UVF
8h 20m
1 stop
Air Canada Logo
3:05 pm - 2:49 pm
UVF
-
PHL
23h 44m
2 stops
$484Air Canada
Fri, Jun 12 - Fri, Jun 19
Air Canada Logo
6:00 am - 2:10 pm
PHL
-
UVF
8h 10m
1 stop
Air Canada Logo
3:05 pm - 3:39 pm
UVF
-
PHL
24h 34m
1 stop
$490Air Canada
Fri, Jun 12 - Fri, Jun 19
Air Canada Logo
6:00 am - 2:10 pm
PHL
-
UVF
8h 10m
1 stop
Air Canada Logo
3:05 pm - 9:34 pm
UVF
-
PHL
30h 29m
2 stops
$494Air Canada
Thu, Jun 11 - Fri, Jun 19
Air Canada Logo
10:05 am - 2:10 pm
PHL
-
UVF
28h 05m
2 stops
Air Canada Logo
3:05 pm - 9:34 pm
UVF
-
PHL
30h 29m
2 stops
$497Air Canada
Tue, Mar 24 - Sun, Mar 29
Air Canada Logo
3:30 pm - 3:25 pm
PHL
-
UVF
23h 55m
2 stops
Air Canada Logo
4:20 pm - 3:44 pm
UVF
-
PHL
23h 24m
1 stop
$521Air Canada
Sun, Apr 12 - Thu, Apr 16
Delta Logo
5:40 am - 1:58 pm
PHL
-
UVF
8h 18m
1 stop
Delta Logo
3:22 pm - 12:59 am
UVF
-
PHL
9h 37m
1 stop
$540Delta
Sun, Mar 1 - Fri, Mar 6
American Airlines Logo
9:30 pm - 2:48 pm
PHL
-
UVF
16h 18m
2 stops
American Airlines Logo
4:58 pm - 9:33 am
UVF
-
PHL
17h 35m
1 stop
$545American Airlines
Mon, May 4 - Tue, May 12
American Airlines Logo
7:36 pm - 1:35 pm
PHL
-
UVF
17h 59m
1 stop
American Airlines Logo
3:21 pm - 11:46 am
UVF
-
PHL
20h 25m
1 stop
$548American Airlines
Thu, Mar 12 - Tue, Mar 17
Multiple Airlines Logo
6:48 am - 7:00 pm
PHL
-
SLU
12h 12m
3 stops
Multiple Airlines Logo
7:10 pm - 10:52 pm
SLU
-
PHL
27h 42m
2 stops
$1,004Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
6:48 am - 3:35 pm
PHL
-
SLU
32h 47m
2 stops
Multiple Airlines Logo
12:35 pm - 2:47 pm
SLU
-
PHL
26h 12m
2 stops
$1,118Multiple Airlines
Booking Insights

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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Saint Lucia from Philadelphia found in the last 72 hours was to Castries, at $592 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 $592.

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 2 stops layover the cheapest option at $728 on average.

Find deals

Good to know

Low seasonSeptember
Cheapest flight$157
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 6% 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.

  • How many flights are there between Philadelphia and Saint Lucia per day?

    There is a maximum of 1 nonstop flight a day that takes off from Philadelphia and lands in Saint Lucia, with an average flight time of 4h 44m. The most common departure time is 8:00 am and most flights take off in the morning. Each week, there are 1 flights.

Reviews of the 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.
7.9
DeltaOverall score based on 8130 reviews
7.8Entertainment
7.9Comfort
8.5Crew
7.2Food
8.1Boarding
Airline reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

2.0 MediocreTodd, Jan 2026
IAH - ATL
Read more Delta reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

My flight to London from Philadelphia was cancelled due to weather.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

Not comparable to Qatar Airways services on flights to Doha. Flight attendants provided basic services; I was never recognized by name or as an Executive Platinum member. Restrooms were not kept clean during the flight.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Airport in MXP is crazy. Get there at least 2 hours before flight.

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

Information on your arrival and departure airports

Philadelphia (PHL)