Cheap flight from San Juan to Castries from $246

Frequently Asked Questions

• Which airlines offer flights from San Juan to Castries?

  At the moment, several airlines serve connecting flights from San Juan to Castries, including: Caribbean Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from San Juan to Castries?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Juan to Castries is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

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

  The cheapest months to fly from San Juan to Castries is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from San Juan to Castries on?

  After crunching the numbers on our November flight calendar, it's currently cheapest to fly from San Juan to Castries on November 21, 2025 with Jetblue Airways, with prices starting at $245.

• Which airports can I fly to for Castries from San Juan?

  You can land at any one of the following hubs in Castries, with Luis Munoz Marin International Airport to George F. L. Charles Airport (SJU-SLU) is by far the most common option on this route: Hewanorra International Airport (UVF) George F. L. Charles Airport (SLU).

• Is there any time difference between San Juan and Castries?

  The time difference between Castries and San Juan is 0h.

• How do I change or cancel my ticket from San Juan to Castries?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.