STL - UVF

$504 Find Cheap Flights from St. Louis to Castries

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Castries departing on 3/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Castries

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Castries, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Castries, as well as popular online travel agencies
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Flight Deals

Cheap Flights from St. Louis to Castries (STL-UVF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Castries that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Castries

Sun, Mar 29 - Fri, Apr 3
Air Canada Logo
4:05 pm - 3:25 pmSTL-UVF
22h 20m1 stop
Air Canada Logo
4:20 pm - 3:24 pmUVF-STL
24h 04m1 stop
$504Air Canada
Find Deal
Tue, Jan 6 - Wed, Jan 14
Delta Logo
6:00 am - 3:05 pmSTL-UVF
7h 05m1 stop
Delta Logo
4:25 pm - 11:39 pmUVF-STL
9h 14m1 stop
$575Delta
Find Deal
Thu, Jan 8 - Wed, Jan 14
Delta Logo
6:00 am - 3:05 pmSTL-UVF
7h 05m1 stop
Delta Logo
4:25 pm - 11:39 pmUVF-STL
9h 14m1 stop
$600Delta
Find Deal
Mon, Feb 16 - Mon, Feb 23
American Airlines Logo
6:16 pm - 2:50 pmSTL-UVF
18h 34m1 stop
American Airlines Logo
5:02 pm - 11:00 amUVF-STL
19h 58m2 stops
$605American Airlines
Find Deal
Sun, Jan 18 - Sun, Jan 25
American Airlines Logo
3:37 pm - 3:03 pmSTL-UVF
21h 26m2 stops
American Airlines Logo
4:06 pm - 9:24 amUVF-STL
19h 18m2 stops
$610American Airlines
Find Deal
Mon, Feb 16 - Mon, Feb 23
American Airlines Logo
5:05 am - 2:50 pmSTL-UVF
7h 45m1 stop
American Airlines Logo
5:02 pm - 10:27 amUVF-STL
19h 25m1 stop
$612American Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Delta Logo
6:00 am - 3:39 pmSTL-UVF
7h 39m1 stop
Delta Logo
4:56 pm - 8:24 amUVF-STL
17h 28m1 stop
$617Delta
Find Deal
Sat, Dec 6 - Thu, Dec 11
American Airlines Logo
6:03 pm - 3:53 pmSTL-UVF
19h 50m2 stops
American Airlines Logo
4:53 pm - 11:59 pmUVF-STL
9h 06m1 stop
$622American Airlines
Find Deal
Sat, Dec 6 - Thu, Dec 11
American Airlines Logo
8:54 am - 2:57 pmSTL-UVF
28h 03m1 stop
American Airlines Logo
4:53 pm - 11:59 pmUVF-STL
9h 06m1 stop
$626American Airlines
Find Deal
Sat, Dec 13 - Sat, Dec 20
United Airlines Logo
6:30 am - 4:25 pmSTL-UVF
7h 55m1 stop
United Airlines Logo
1:52 pm - 9:43 pmUVF-STL
9h 51m1 stop
$924United Airlines
Find Deal

Everything you should know

Top airlines
Air Canada
Cheapest • from $504 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 19% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$504
Overall average: $678
Air Canada
Sun 3/29Fri 4/3
STL - UVF • 1 stop
Cheapest one-way
Multiple Airlines
Thu 10/30
STL - UVF • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Castries!
Booking Insights

KAYAK's insights & trends for St. Louis to Castries flights

Get data-powered insights and trends into flights from St. Louis to Castries to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Castries?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Castries, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Castries is October, where tickets cost $581 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $872 and $795 respectively.

Good to know

Low seasonSeptember
Cheapest flight$504
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from St. Louis to Castries

When to book flights from St. Louis to Castries

Are your dates flexible? Find out the best times to travel from St. Louis to Castries based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Castries

  • What is the cheapest flight from St. Louis to Castries?

    In the last 3 days, the lowest price for a flight from St. Louis to Castries was $504 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Castries?

    Yes, you’ll need a passport to travel to Castries from St. Louis.

  • Which airports will I be using when flying from St. Louis to Castries?

    On your way to Castries, you’ll fly out from Lambert-St Louis. You’ll be landing at Castries Hewanorra.

  • Which aircraft models fly most regularly from St. Louis to Castries?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Castries?

    SkyTeam, and oneworld are the airline alliances operating flights between St. Louis and Castries, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Castries, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Castries are Delta and American Airlines. With an average price for the route of $759 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $708 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from St. Louis to Castries?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Castries.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Castries?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Castries from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Castries?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Castries with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and UVF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Castries?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Castries from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Castries

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Castries. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Castries? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7992 reviews
7.9Comfort
7.9Entertainment
7.3Food
8.2Boarding
8.5Crew
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

The only thing to like was that we eventually got to our destination

Delayed delayed delayed and no offer for food or vouchers

Disliked having to wait a little longer to disembark from the plan when we landed in London

Everything you need to know for your flight from St. Louis to Castries

Information on your arrival and departure airports

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