How long is the flight from St. Louis to Castries?

Airlines like Air Canada and American Airlines fly from St. Louis to Castries in about 8h 55m. The time it takes to get you to your destination can typically vary by up to 13h 25m. Airlines will cover a distance of 2489 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from St. Louis to Castries round-trip?

Our cheapest airline available from St. Louis to Castries is Delta. Our recent data shows that you can find tickets from as low as $565 on this airline. An additional option worth looking into is American Airlines, starting at $575. These flights start at 22% lower than the current average price 3 months from now.

What is the cheapest time of day to fly from STL to UVF?

When flying from St. Louis to Castries, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on St. Louis-Castries flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Castries flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Castries flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Castries flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Castries flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from St. Louis to Castries that include hotel bookings?

Yes. In addition to deals on St. Louis to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Castries?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Castries.

Can I find deals for business class flights from St. Louis to Castries?

Yes. Cheapflights offers flight deals from St. Louis to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$264+ Flights from St. Louis to Castries

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Cheap flight deals from St. Louis to Castries

Cheapest flights from St. Louis to Castries
Explore the most affordable flight options available from St. Louis to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 15, 2025.

mié. 12/246:00 amSTL - UVF

1 stop7h 30mDelta

jue. 1/14:50 pmUVF - STL

1 stop8h 48mDelta

Deal found 12/13

$1,955

mié. 12/245:05 amSTL - UVF

1 stop8h 49mAmerican Airlines

jue. 1/14:54 pmUVF - STL

2 stops21h 38mAmerican Airlines

Deal found 12/13

$2,069

Best flights from St. Louis to Castries
Discover carefully curated flight deals from St. Louis to Castries that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 15, 2025.

dom. 1/184:05 pmSTL - UVF

1 stop22h 20mAir Canada

lun. 1/265:15 pmUVF - STL

1 stop24h 14mAir Canada

Deal found 12/15

$472

mié. 2/255:05 amSTL - UVF

1 stop8h 55mAmerican Airlines

jue. 3/54:25 pmUVF - STL

1 stop18h 07mAmerican Airlines

Deal found 12/14

$575

mié. 1/146:00 amSTL - UVF

1 stop7h 05mDelta

mié. 1/214:25 pmUVF - STL

1 stop9h 12mDelta

Deal found 12/15

$617

lun. 2/165:05 amSTL - UVF

1 stop7h 45mAmerican Airlines

lun. 2/234:25 pmUVF - STL

1 stop19h 18mAmerican Airlines

Deal found 12/12

$600

mar. 1/278:13 amSTL - UVF

1 stop28h 50mAmerican Airlines

mar. 2/35:02 pmUVF - STL

1 stop8h 57mAmerican Airlines

Deal found 12/13

$605

Last-minute flights from St. Louis to Castries
Discover last-minute flight deals from St. Louis to Castries. Data last updated diciembre 15, 2025 and is based on user searches.

mié. 1/146:00 amSTL - UVF

1 stop7h 05mDelta

mié. 1/214:25 pmUVF - STL

1 stop9h 12mDelta

Deal found 12/15

$617

mié. 1/146:02 pmSTL - UVF

1 stop17h 44mAmerican Airlines

mié. 1/215:02 pmUVF - STL

1 stop8h 57mAmerican Airlines

Deal found 12/15

$642

dom. 1/184:05 pmSTL - UVF

1 stop22h 20mAir Canada

lun. 1/265:15 pmUVF - STL

1 stop24h 14mAir Canada

Deal found 12/15

$472

dom. 1/184:05 pmSTL - UVF

1 stop22h 20mAir Canada

vie. 1/235:15 pmUVF - STL

1 stop24h 14mAir Canada

Deal found 12/15

$594

dom. 1/185:20 pmSTL - UVF

2 stops19h 43mAmerican Airlines

lun. 1/265:02 pmUVF - STL

2 stops18h 22mAmerican Airlines

Deal found 12/13

$633

mar. 1/275:59 pmSTL - UVF

2 stops19h 04mAmerican Airlines

mar. 2/35:02 pmUVF - STL

2 stops24h 02mAmerican Airlines

Deal found 12/13

$601

jue. 1/296:02 pmSTL - UVF

1 stop17h 44mAmerican Airlines

jue. 2/52:46 pmUVF - STL

1 stop11h 13mAmerican Airlines

Deal found 12/15

$621

sáb. 1/313:54 pmSTL - UVF

2 stops21h 09mAmerican Airlines

sáb. 2/75:02 pmUVF - STL

2 stops20h 01mAmerican Airlines

Deal found 12/15

$626

One-way flights from St. Louis to Castries
Search for one-way flight options from St. Louis to Castries. Find affordable one-way fares based on user searches. Data last updated diciembre 15, 2025.

dom. 3/294:05 pmSTL - UVF

1 stop22h 20mAir Canada

Deal found 12/13

$264

dom. 3/296:57 pmSTL - UVF

1 stop18h 21mAmerican Airlines

Deal found 12/13

$298

dom. 3/294:51 pmSTL - UVF

3 stops43h 55mMultiple Airlines

Deal found 12/13

$466

Find flight deals from St. Louis to Castries

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$472 (Gotogate)
One-way from	$264 (FlightHub)
Popular in	June
Cheapest in	October
Average price	$859

Provider with most accurate pricing for Lambert-St Louis-Castries Hewanorra flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Castries Hewanorra flights.

Search Deals

From Lambert-St Louis to Castries Hewanorra

Search Deals

One-way flight from Lambert-St Louis to Castries Hewanorra

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($97 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

dom. 1/18

4:05 pm-4:25 pm

1 stop22h 20m

Castries Hewanorra

lun. 1/26

5:15 pm-3:29 pm

1 stop24h 14m

$472

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

mié. 2/25

5:05 am-4:00 pm

1 stop8h 55m

Castries Hewanorra

jue. 3/5

4:25 pm-8:32 am

1 stop18h 07m

$575

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

lun. 2/16

5:05 am-2:50 pm

1 stop7h 45m

Castries Hewanorra

lun. 2/23

4:25 pm-9:43 am

1 stop19h 18m

$600

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

mar. 1/27

8:13 am-3:03 pm

1 stop28h 50m

Castries Hewanorra

mar. 2/3

5:02 pm-11:59 pm

1 stop8h 57m

$605

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

mié. 1/14

6:00 am-3:05 pm

1 stop7h 05m

Castries Hewanorra

mié. 1/21

4:25 pm-11:37 pm

1 stop9h 12m

$617

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

dom. 3/29

4:05 pm-3:25 pm

1 stop22h 20m

$264

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

dom. 3/29

6:57 pm-2:18 pm

1 stop18h 21m

$298

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

dom. 3/29

4:51 pm-1:46 pm

3 stops43h 55m

$466

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Compare providers for flights from St. Louis to Castries

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Castries in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Castries flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Castries flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Castries flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Castries flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Castries flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from St. Louis to Castries?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Castries (average of $550). Flying from St. Louis to Castries in July is currently the most expensive (average of $674). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Castries

Peruse reviews from past customers who have flown with Delta and American Airlines from St. Louis to Castries to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,008 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,051 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from St. Louis to Castries?
Airlines like Air Canada and American Airlines fly from St. Louis to Castries in about 8h 55m. The time it takes to get you to your destination can typically vary by up to 13h 25m. Airlines will cover a distance of 2489 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from St. Louis to Castries round-trip?
Our cheapest airline available from St. Louis to Castries is Delta. Our recent data shows that you can find tickets from as low as $565 on this airline. An additional option worth looking into is American Airlines, starting at $575. These flights start at 22% lower than the current average price 3 months from now.
Can I find deals for flights from St. Louis to Castries that include hotel bookings?
Yes. In addition to deals on St. Louis to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Castries?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Castries.
Can I find deals for business class flights from St. Louis to Castries?
Yes. Cheapflights offers flight deals from St. Louis to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Castries?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Castries (average of $550). Flying from St. Louis to Castries in July is currently the most expensive (average of $674). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Castries

Kansas City to Castries flights

Top 2 airlines flying from St. Louis to Castries

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$565	Average$720	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$575	Average$702	FlexibilityNo cancel fee	On-time71%

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$264+ Cheap flights from St. Louis (STL) to Castries (UVF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Castries with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Castries

Cheapest flights from St. Louis to CastriesExplore the most affordable flight options available from St. Louis to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 15, 2025.

Explore the most affordable flight options available from St. Louis to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 15, 2025.

Find flight deals from St. Louis to Castries

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Castries that are best for you.

Compare providers for flights from St. Louis to Castries

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Castries in December.

Best time to book a flight from St. Louis to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from St. Louis with our price prediction graph.

Cheapflights Insights

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

What is the cheapest month to book a flight from St. Louis to Castries?

Reviews of airlines servicing Castries

Peruse reviews from past customers who have flown with Delta and American Airlines from St. Louis to Castries to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from St. Louis to Castries?

What are the cheapest airlines flying from St. Louis to Castries round-trip?

Can I find deals for flights from St. Louis to Castries that include hotel bookings?

How can I find direct flights from St. Louis to Castries?

Can I find deals for business class flights from St. Louis to Castries?

What is the cheapest month to book a flight from St. Louis to Castries?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Castries

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from St. Louis to Castries

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Cheapest flights from St. Louis to Castries
Explore the most affordable flight options available from St. Louis to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 15, 2025.