$189+ Cheap flights from San Juan to Saint Lucia
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San Juan to Saint Lucia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Juan to Saint Lucia
Cheapest flights from San Juan to Saint LuciaExplore the most affordable flight options available from San Juan to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.
Explore the most affordable flight options available from San Juan to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.
This Expedia deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flight deals from San Juan to Saint Lucia
Keep the following information in mind while searching for San Juan to Saint Lucia flight deals. Data was last updated December 14, 2025.
Round-trip from | $773 (JetBlue) |
|---|---|
One-way from | $189 (Priceline) |
Cheapflights Fare Finder
Use the filters below to find and compare flights from San Juan to Saint Lucia that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San JuanCastries
SJU - UVF
SJUUVF
San Juan Luis Munoz Marin Intl
Sat 1/10
4:00 pm-7:35 pm
3 stops27h 35m
Castries Hewanorra
Mon 1/12
5:50 pm-8:02 pm
2 stops26h 12m
San JuanCastries
SJU - UVF
SJUUVF
San Juan Luis Munoz Marin Intl
Sat 1/10
8:00 pm-3:41 pm
2 stops19h 41m
Castries Hewanorra
Mon 1/12
5:50 pm-9:58 am
1 stop16h 08m
San JuanCastries
SJU - UVF
SJUUVF
San Juan Luis Munoz Marin Intl
Wed 12/24
1:59 am-3:47 pm
1 stop13h 48m
Castries Hewanorra
Thu 1/1
5:10 pm-9:55 am
1 stop16h 45m
San JuanCastries
SJU - UVF
SJUUVF
San Juan Luis Munoz Marin Intl
Tue 3/31
7:00 pm-2:50 pm
1 stop19h 50m
San JuanCastries
SJU - UVF
SJUUVF
San Juan Luis Munoz Marin Intl
Tue 3/31
3:36 pm-1:46 pm
2 stops46h 10m
Best time to book a flight from San Juan to Saint Lucia
Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from San Juan with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from San Juan to Saint Lucia
How often are flights from San Juan to Saint Lucia delayed?
About 20% of weekly flights between San Juan and Saint Lucia have experienced delays in the past year, with the average delay time being 20 minutes.
What is the most punctual flight time for San Juan to Saint Lucia flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Juan to Saint Lucia flights?
Over the last year, Tradewind have had the lowest number of delays on this route, with just 50% of flights being delayed.