Trip.com
>
Flights
>
Flights to Saint Lucia
>
Flights to Castries
>
Flights from Sioux Falls to Castries

Cheap flight deals from Sioux Falls to Castries

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

  • Round-trip
  • One way

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

Flight Info | Sioux Falls to Castries

Cheapest one-way flight price AED 1,988
Off-season for travel May
Peak season for travel April
Flight distance 4,724.42 km
Popular airline American Airlines

When is the cheapest time to fly from Sioux Falls to Castries?

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

Cheapest flights
From price
Search
  • 8 15
  • 15 22
  • 22 29

  • Jul

    29 6
  • 6 13
  • 13 20
  • 20 27

  • Aug

    27 3
  • 3 10
  • 10 17
  • 17 24
  • 24 31
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Sioux Falls (FSD) to Castries (SLU) the cheapest?

    Airlines adjust prices for flights from Sioux Falls to Castries based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Sioux Falls (FSD) to Castries (SLU) cost?

    According to Trip.com's data, the lowest price is around AED 4,149.

  • How many airports are there in Castries (SLU)?

    There are 2 airport(s) near Castries (SLU): George F. L. Charles Airport and Hewanorra Airport.

How to find a cheap flight from Sioux Falls 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 Sioux Falls to Castries. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Sioux Falls to Castries ticket.
Tap "Date" on flight search bar to scan through the calender for Sioux Falls to Castries airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Mon, Jun 16 at AED 1989 for one-way flights.
2
Compare cheap Sioux Falls to Castries flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Sioux Falls to Castries. The cheapest airline operating is Delta Air Lines.
3
Set up a Price Alert
By setting up a Price Alert for your Sioux Falls to Castries route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap Sioux Falls to Castries flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Sioux Falls to Castries to get exclusive deals for you.

More Travel Options

  • Top Routes from Sioux Falls
  • Top Routes to Castries
  • Trending Airlines