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Cheap Flights from San Juan to Castries starting at S$ 412

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from San Juan to Castries

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.
Cheapest Airlines flying from San Juan to Castries

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From S$ 335
Jetblue Airways
From S$ 412
Intercaribbean Airways, Ltd.
From S$ 542
Spirit Airlines
From S$ 563
American Airlines
From S$ 575
United Airlines
From S$ 5,320
ANA airlines

Find more flights and airlines

Alternative Routes from San Juan to Castries

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from San Juan to Castries.

  • Cheapest
    Frontier Airlines
    SJU
    18:43
    41h 17m
    2 transfer
    SLU
    12:00
    Luis Muñoz Marín International Airport - George F. L. Charles Airport
    Tue, May 21Frontier Airlines
    S$ 335
  • Frontier Airlines
    SJU
    05:45
    31h 54m
    2 transfer
    UVF
    13:39
    Luis Muñoz Marín International Airport - Hewanorra Airport
    Sun, May 5Frontier Airlines
    S$ 336
  • Frontier Airlines
    SJU
    05:45
    31h 54m
    2 transfer
    UVF
    13:39
    Luis Muñoz Marín International Airport - Hewanorra Airport
    Sun, May 5Frontier Airlines
    S$ 336
    Find More Flights

Frequently Asked Questions

  • When to buy flight tickets from San Juan (SJU) to Castries (SLU) the cheapest?

    Airlines adjust prices for flights from San Juan to Castries based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much is a flight from San Juan (SJU) to Castries (SLU) cost?

    According to Trip.com's data, the lowest price is around S$ 666.
  • What is the transportation method from the main airport to downtown in Castries?

    • The distance from George F. L. Charles Airport to downtown is about 1km, by taxi about 20 minutes.
    • The distance from Hewanorra International Airport to downtown is about 30km, by taxi about 50 minutes.
  • How many airports in Castries?

    There are 2 airports near Castries: George F. L. Charles Airport and Hewanorra International Airport.

How to find a cheap flight from San Juan to Castries

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from San Juan to Castries. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Find cheapest flight ticket from San Juan to Castries

Cheapest direct flight price

S$ 411

Cheapest month

February

Peak season for travel

October

Flight distance

726.48km

Popular airline

Frontier Airlines