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Castries

$575+ Cheap flights from St. Louis (STL) to Castries (UVF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UVF
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from St. Louis to Castries

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 December 18, 2025.

This Booking.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/74:05 pmSTL - UVF
1 stop22h 20mAir Canada
Wed 1/145:15 pmUVF - STL
1 stop24h 14mAir Canada
Deal found 12/16$575
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/165:05 amSTL - UVF
1 stop8h 55mAmerican Airlines
Mon 2/234:25 pmUVF - STL
1 stop19h 18mAmerican Airlines
Deal found 12/15$600
This Air Canada deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/284:05 pmSTL - UVF
1 stop22h 15mAir Canada
Fri 4/34:20 pmUVF - STL
1 stop24h 04mAir Canada
Deal found 12/16$619
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/313:54 pmSTL - UVF
2 stops19h 52mAmerican Airlines
Sat 2/75:02 pmUVF - STL
2 stops20h 01mAmerican Airlines
Deal found 12/17$626
This Gotogate deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/294:05 pmSTL - UVF
1 stop22h 20mAir Canada
Fri 4/34:20 pmUVF - STL
1 stop24h 04mAir Canada
Deal found 12/16$619
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/185:56 pmSTL - UVF
2 stops20h 04mAmerican Airlines
Mon 2/234:25 pmUVF - STL
1 stop19h 18mAmerican Airlines
Deal found 12/16$630
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:05 amSTL - UVF
1 stop8h 55mAmerican Airlines
Sun 3/83:58 pmUVF - STL
1 stop19h 34mAmerican Airlines
Deal found 12/17$630

Find flight deals from St. Louis to Castries

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Castries (UVF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$575
(Booking.com)

Popular in

June

Cheapest in

October

Average price

$859
Provider with most accurate pricing for Lambert-St Louis-Castries Hewanorra flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Castries Hewanorra flights.
Search Deals
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
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from St. Louis to Castries that are best for you.

Fly from

St. Louis

Fly to

Castries

Route

Depart

Return

Price

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Wed 1/7

4:05 pm-4:25 pm

1 stop22h 20m

Castries Hewanorra

Wed 1/14

5:15 pm-3:29 pm

1 stop24h 14m

$575

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Mon 2/16

5:05 am-4:00 pm

1 stop8h 55m

Castries Hewanorra

Mon 2/23

4:25 pm-9:43 am

1 stop19h 18m

$600

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 3/28

4:05 pm-3:20 pm

1 stop22h 15m

Castries Hewanorra

Fri 4/3

4:20 pm-3:24 pm

1 stop24h 04m

$619

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sun 3/29

4:05 pm-3:25 pm

1 stop22h 20m

Castries Hewanorra

Fri 4/3

4:20 pm-3:24 pm

1 stop24h 04m

$619

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 1/31

3:54 pm-1:46 pm

2 stops19h 52m

Castries Hewanorra

Sat 2/7

5:02 pm-11:03 am

2 stops20h 01m

$626

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Wed 2/18

5:56 pm-4:00 pm

2 stops20h 04m

Castries Hewanorra

Mon 2/23

4:25 pm-9:43 am

1 stop19h 18m

$630

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sun 3/1

5:05 am-4:00 pm

1 stop8h 55m

Castries Hewanorra

Sun 3/8

3:58 pm-10:32 am

1 stop19h 34m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice 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

Get insights into the airlines that provide service to Castries. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Castries. Reviews last updated December 18, 2025.
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
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
8,005 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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.
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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.

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?

    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

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Alternative routes for St. Louis to Castries

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Castries flights

Top 2 airlines flying from St. Louis to Castries

Discover the top 2 airlines that operate flights from St. Louis to Castries. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$565Average$720FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$575Average$702FlexibilityNo cancel feeOn-time71%

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