STL - UVF

$264 Find Cheap Flights from St. Louis to Castries

This is the cheapest one-way 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$472
Typical prices: $600-$717
Air Canada
Sun 1/18Mon 1/26
STL - UVF • 1 stop
Cheapest one-way
$264
Air Canada
Sun 3/29
STL - UVF • 1 stop
When to travel
October
Cheapest • 20% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
Flight Deals
Booking Insights
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, Jan 18 - Mon, Jan 26
Air Canada Logo
4:05 pm - 4:25 pm
STL
-
UVF
22h 20m1 stop
Air Canada Logo
5:15 pm - 3:29 pm
UVF
-
STL
24h 14m1 stop
$472Air Canada
Wed, Feb 25 - Thu, Mar 5
American Airlines Logo
5:05 am - 4:00 pm
STL
-
UVF
8h 55m1 stop
American Airlines Logo
4:25 pm - 8:32 am
UVF
-
STL
18h 07m1 stop
$575American Airlines
Wed, Feb 25 - Thu, Mar 5
American Airlines Logo
5:05 am - 4:00 pm
STL
-
UVF
8h 55m1 stop
American Airlines Logo
5:00 pm - 9:02 am
UVF
-
STL
18h 02m2 stops
$580American Airlines
Sun, Jan 18 - Fri, Jan 23
Air Canada Logo
4:05 pm - 4:25 pm
STL
-
UVF
22h 20m1 stop
Air Canada Logo
5:15 pm - 3:29 pm
UVF
-
STL
24h 14m1 stop
$594Air Canada
Mon, Feb 16 - Mon, Feb 23
American Airlines Logo
5:05 am - 4:00 pm
STL
-
UVF
8h 55m1 stop
American Airlines Logo
4:25 pm - 9:43 am
UVF
-
STL
19h 18m1 stop
$600American Airlines
Mon, Feb 16 - Mon, Feb 23
American Airlines Logo
6:58 pm - 4:00 pm
STL
-
UVF
19h 02m2 stops
American Airlines Logo
4:25 pm - 9:43 am
UVF
-
STL
19h 18m1 stop
$605American Airlines
Wed, Jan 14 - Wed, Jan 21
Delta Logo
6:00 am - 3:05 pm
STL
-
UVF
7h 05m1 stop
Delta Logo
4:25 pm - 11:37 pm
UVF
-
STL
9h 12m1 stop
$617Delta
Sat, Mar 28 - Fri, Apr 3
Air Canada Logo
4:05 pm - 3:20 pm
STL
-
UVF
22h 15m1 stop
Air Canada Logo
4:20 pm - 3:24 pm
UVF
-
STL
24h 04m1 stop
$619Air Canada
Thu, Jan 29 - Thu, Feb 5
American Airlines Logo
6:02 pm - 1:46 pm
STL
-
UVF
17h 44m1 stop
American Airlines Logo
2:46 pm - 11:59 pm
UVF
-
STL
11h 13m1 stop
$621American Airlines
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
5:05 am - 2:50 pm
STL
-
UVF
7h 45m1 stop
American Airlines Logo
4:25 pm - 9:43 am
UVF
-
STL
19h 18m1 stop
$625American Airlines
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.

How much is a round-trip flight from St. Louis to Castries?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Castries departing in January.

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 June and December, where the average cost of round-trip tickets is $937 and $859 respectively.

Good to know

Low seasonSeptember
Cheapest flight$264
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 18% 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 $264 for a one-way ticket and $472 for a round-trip.

  • 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 $720 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 $702 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 8010 reviews
7.9Entertainment
8.5Crew
8.1Boarding
7.3Food
7.9Comfort
Airline reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

10.0 ExcellentMargaret, Dec 2025
BOS - PIT
Read more Delta reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

Not comparable to Qatar Airways services on flights to Doha. Flight attendants provided basic services; I was never recognized by name or as an Executive Platinum member. Restrooms were not kept clean during the flight.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

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

Information on your arrival and departure airports