Cheap flights from St. Louis to Castries from $575
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Castries departing on 10/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from St. Louis to Castries
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between St. Louis and Castries?
What is the cheapest month to fly to Castries?
The month of February is, on average, the cheapest month to fly to Castries from St. Louis, with most prices found around $525. The month of August is another great option to travel to Castries, with average flight prices from St. Louis averaging around $635.
What is the cheapest day to depart on your flight to Castries?
The cheapest day to depart from St. Louis to Castries is on a Tuesday when prices can be found for as low as $614. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $816. These prices are subject to change though, so be sure to set up a Price Alert for flights to Castries.
When to book flights from St. Louis to Castries
Cheap St. Louis to Castries (STL to UVF) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Castries
How far is Lambert-St Louis to Castries Hewanorra by plane?
The distance between Lambert-St Louis and Castries Hewanorra is about 2460.5 mi. A reasonable flight in good conditions will take 6h 51m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Castries Hewanorra Airport?
Prices for flights from Lambert-St Louis Airport to Castries Hewanorra Airport are updated daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Castries Hewanorra Airport?
As of June 2025, there are 2 operators available to choose from for flights from Lambert-St Louis Airport to Castries Hewanorra Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Castries Hewanorra Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Castries Hewanorra Airport.
What documentation or ID do you need to fly to Castries Hewanorra Airport?
The required travel and health documents for your Castries Hewanorra Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Castries Hewanorra Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from St. Louis to Castries?
Based on momondo bookings for flights between St. Louis and Castries, the leading airline is American Airlines, making up 65% of the total bookings. Other popular airlines include Delta with 35%.
Best airlines flying from St. Louis to Castries
Compare and see reviews for airlines that fly from St. Louis to Castries with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $444 | Free Cancellation | Rating 8.0 7,966 reviews | |||
| PriceFrom $548 | Free Cancellation | Rating 7.2 10,000 reviews |
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Why should I use momondo to find a flight deal from St. Louis to Castries?
It is quick and easy to find St. Louis to Castries flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Castries that suits you.
Can I find flights from St. Louis to Castries with flexible booking policies on momondo?
All flight searches from St. Louis to Castries on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from St. Louis to Castries?
Once all potential St. Louis to Castries flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from St. Louis to Castries right now. Can momondo alert me if prices change?
Yes. momondo can track prices for St. Louis to Castries flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.