$207 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 1/18. 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

Tue, Jan 6 - Wed, Jan 14
Air Canada Logo
4:35 pm - 4:20 pm
PHL
-
UVF
22h 45m1 stop
Air Canada Logo
5:15 pm - 3:49 pm
UVF
-
PHL
23h 34m1 stop
$467Air Canada
Tue, Jan 6 - Wed, Jan 14
Air Canada Logo
3:30 pm - 4:20 pm
PHL
-
UVF
23h 50m2 stops
Air Canada Logo
5:15 pm - 3:49 pm
UVF
-
PHL
23h 34m1 stop
$470Air Canada
Sat, Jan 24 - Wed, Jan 28
JetBlue Logo
8:40 am - 3:41 pm
PHL
-
UVF
30h 01m2 stops
JetBlue Logo
5:21 pm - 12:35 pm
UVF
-
PHL
20h 14m2 stops
$477JetBlue
Tue, Mar 3 - Fri, Mar 6
American Airlines Logo
6:12 am - 2:50 pm
PHL
-
UVF
7h 38m1 stop
American Airlines Logo
5:00 pm - 12:51 am
UVF
-
PHL
8h 51m1 stop
$483American Airlines
Sat, Jan 24 - Wed, Jan 28
Multiple Airlines Logo
8:40 am - 3:41 pm
PHL
-
UVF
30h 01m2 stops
Multiple Airlines Logo
5:15 pm - 3:49 pm
UVF
-
PHL
23h 34m1 stop
$484Multiple Airlines
Tue, Mar 3 - Fri, Mar 6
American Airlines Logo
9:30 pm - 4:00 pm
PHL
-
UVF
17h 30m2 stops
American Airlines Logo
5:00 pm - 9:25 am
UVF
-
PHL
17h 25m1 stop
$488American Airlines
Wed, Jan 21 - Wed, Jan 28
American Airlines Logo
7:40 pm - 1:46 pm
PHL
-
UVF
17h 06m1 stop
American Airlines Logo
5:02 pm - 12:42 am
UVF
-
PHL
8h 40m1 stop
$513American Airlines
Wed, Jan 21 - Wed, Jan 28
American Airlines Logo
6:55 pm - 1:46 pm
PHL
-
UVF
17h 51m2 stops
American Airlines Logo
5:02 pm - 12:42 am
UVF
-
PHL
8h 40m1 stop
$518American Airlines
Tue, Apr 28 - Thu, May 7
Delta Logo
6:45 am - 2:08 pm
PHL
-
UVF
7h 23m1 stop
Delta Logo
3:25 pm - 12:25 am
UVF
-
PHL
9h 00m1 stop
$520Delta
Mon, Apr 27 - Wed, May 6
Multiple Airlines Logo
7:00 am - 6:35 pm
PHL
-
SLU
11h 35m3 stops
Multiple Airlines Logo
10:15 am - 10:44 pm
SLU
-
PHL
36h 29m2 stops
$1,422Multiple 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 1 stop layover the cheapest option at $752 on average.

Find deals

Good to know

Low seasonSeptember
Cheapest flight$207
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 4% 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.

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 8005 reviews
7.3Food
7.9Entertainment
8.1Boarding
7.9Comfort
8.5Crew
Airline reviews

Great. I had to modify a flight. That was easy and free. Thank You

10.0 ExcellentOlumuyiwa, Dec 2025
DTW - ATL
Read more Delta reviews

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

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.

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

The flight was canceled 3 hours after original take off time

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

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

Information on your arrival and departure airports

Philadelphia (PHL)