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

Our data shows that August tends to be the cheapest month to fly to Saint Lucia from St. Louis. Users have commonly found prices around $811 for the month, but tickets can be as low as $488. Due to multiple factors, prepare for potentially higher prices in December.

What airport do you fly from for flights from St. Louis to Saint Lucia?

Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Saint Lucia. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

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

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

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

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

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

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

$740+ Flights from St. Louis to Saint Lucia

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Cheap flight deals from St. Louis to Saint Lucia

Round-trip from	$550 (Delta)
Popular in	December
Cheapest in	August

From Lambert-St Louis to Saint Lucia

Search Deals

Highest demand for flights based on searches. 20% potential increase in price ($211 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($46 potential savings vs. average RT price).

Search Deals

Find flight deals from St. Louis to Saint Lucia

Cheapest flights from St. Louis to Saint Lucia
Explore the most affordable flight options available from St. Louis to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Sat 4/266:00 amSTL - UVF

1 stop6h 59mDelta

Fri 5/23:19 pmUVF - STL

1 stop9h 17mDelta

Deal found 3/27

$550

Wed 4/305:00 amSTL - UVF

1 stop8h 28mAmerican Airlines

Mon 5/53:14 pmUVF - STL

2 stops22h 13mAmerican Airlines

Deal found 3/27

$555

Sat 4/266:30 amSTL - UVF

1 stop8h 00mUnited Airlines

Sat 5/312:55 pmUVF - STL

1 stop9h 53mUnited Airlines

Deal found 3/27

$573

Sat 4/263:30 pmSTL - SLU

2 stops23h 25mMultiple Airlines

Sat 5/36:20 pmSLU - STL

3 stops23h 55mMultiple Airlines

Deal found 3/27

$1,238

Best flights from St. Louis to Saint Lucia
Discover carefully curated flight deals from St. Louis to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Sat 4/266:00 amSTL - UVF

1 stop6h 59mDelta

Fri 5/23:19 pmUVF - STL

1 stop9h 17mDelta

Deal found 3/28

$550

Wed 4/305:00 amSTL - UVF

1 stop8h 28mAmerican Airlines

Mon 5/53:14 pmUVF - STL

2 stops22h 13mAmerican Airlines

Deal found 3/27

$555

Sat 4/266:30 amSTL - UVF

1 stop8h 00mUnited Airlines

Sat 5/312:55 pmUVF - STL

1 stop9h 53mUnited Airlines

Deal found 3/27

$573

Wed 6/251:30 pmSTL - UVF

2 stops47h 45mAir Canada

Tue 7/13:10 pmUVF - STL

2 stops32h 35mAir Canada

Deal found 3/28

$914

Sat 4/263:30 pmSTL - SLU

2 stops23h 25mMultiple Airlines

Sat 5/36:20 pmSLU - STL

3 stops23h 55mMultiple Airlines

Deal found 3/27

$1,238

Last-minute flights from St. Louis to Saint Lucia
Discover last-minute flight deals from St. Louis to Saint Lucia. Data last updated March 28, 2025 and is based on user searches.

Sat 4/266:00 amSTL - UVF

1 stop6h 59mDelta

Fri 5/23:19 pmUVF - STL

1 stop9h 17mDelta

Deal found 3/28

$550

Sat 4/266:30 amSTL - UVF

1 stop8h 00mUnited Airlines

Sat 5/312:55 pmUVF - STL

1 stop9h 53mUnited Airlines

Deal found 3/27

$573

Sat 4/263:30 pmSTL - SLU

2 stops23h 25mMultiple Airlines

Sat 5/36:20 pmSLU - STL

3 stops23h 55mMultiple Airlines

Deal found 3/27

$1,238

Wed 4/305:00 amSTL - UVF

1 stop8h 28mAmerican Airlines

Mon 5/53:14 pmUVF - STL

2 stops22h 13mAmerican Airlines

Deal found 3/27

$555

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 4/26

6:00 am-1:59 pm

1 stop6h 59m

Castries Hewanorra

Fri 5/2

3:19 pm-11:36 pm

1 stop9h 17m

$550

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Wed 4/30

5:00 am-2:28 pm

1 stop8h 28m

Castries Hewanorra

Mon 5/5

3:14 pm-12:27 pm

2 stops22h 13m

$555

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 4/26

6:30 am-3:30 pm

1 stop8h 00m

Castries Hewanorra

Sat 5/3

12:55 pm-9:48 pm

1 stop9h 53m

$573

St. LouisCastries

STL - SLU

STLSLU

Lambert-St Louis

Sat 4/26

3:30 pm-3:55 pm

2 stops23h 25m

Castries George F. L. Charle

Sat 5/3

6:20 pm-5:15 pm

3 stops23h 55m

$1,238

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Best time to book a flight from St. Louis to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia 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 Saint Lucia

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Saint Lucia (average of $556). Flying from St. Louis to Saint Lucia in December is currently the most expensive (average of $730). 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.

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

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

Reviews of airlines servicing Saint Lucia

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,896 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,603 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

8,986 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from St. Louis to Saint Lucia?
Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Saint Lucia. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.
Can I find deals for flights from St. Louis to Saint Lucia that include hotel bookings?
Yes. In addition to deals on St. Louis to Saint Lucia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Saint Lucia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Saint Lucia.
Can I find deals for business class flights from St. Louis to Saint Lucia?
Yes. Cheapflights offers flight deals from St. Louis to Saint Lucia 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 Saint Lucia?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Saint Lucia (average of $556). Flying from St. Louis to Saint Lucia in December is currently the most expensive (average of $730). 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 Saint Lucia

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Top 2 airlines flying from St. Louis to Saint Lucia

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$444	Average$642	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$491	Average$708	FlexibilityNo cancel fee	On-time71%

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$550+ Cheap flights from St. Louis (STL) to Saint Lucia

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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Saint Lucia 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 Saint Lucia

Keep the following information in mind while searching for St. Louis to Saint Lucia flight deals. Data was last updated March 28, 2025.

Round-trip from

Popular in

Cheapest in

Find flight deals from St. Louis to Saint Lucia

Cheapest flights from St. Louis to Saint LuciaExplore the most affordable flight options available from St. Louis to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Explore the most affordable flight options available from St. Louis to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from St. Louis to Saint Lucia

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

Cheapflights Insights

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

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

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

Find hourly flight availability from St. Louis to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Reviews of airlines servicing Saint Lucia

Related info for your journey

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

What airport do you fly from for flights from St. Louis to Saint Lucia?

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

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

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

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

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 Saint Lucia

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

Top 2 airlines flying from St. Louis to Saint Lucia

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Book with Flexibility

Travel Smart

Cheapest flights from St. Louis to Saint Lucia
Explore the most affordable flight options available from St. Louis to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.