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Saint Lucia

$360+ Cheap flights from Missouri to Saint Lucia

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UVF
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
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Cheap flight deals from Missouri to Saint Lucia

Keep the following information in mind while searching for Missouri to Saint Lucia flight deals. Data was last updated August 17, 2025.

Round-trip from

$494
(Air Canada)

One-way from

$360
(American Airlines)
From Missouri to Saint Lucia
Search Deals
One-way flight from Missouri to Saint Lucia
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Find flight deals from Missouri to Saint Lucia

Cheapest flights from Missouri to Saint Lucia
Explore the most affordable flight options available from Missouri to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

This Air Canada deal was found by Cheapflights users on 8/16. 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.
Mon 10/204:05 pmSTL - UVF
1 stop21h 10mAir Canada
Fri 10/243:10 pmUVF - STL
1 stop25h 08mAir Canada
Deal found 8/16$494
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 10/295:53 pmSTL - UVF
2 stops19h 03mAmerican Airlines
Tue 11/44:50 pmUVF - STL
2 stops18h 45mAmerican Airlines
Deal found 8/17$605
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 10/157:46 pmMCI - UVF
2 stops16h 54mAmerican Airlines
Wed 10/222:56 pmUVF - MCI
2 stops20h 57mAmerican Airlines
Deal found 8/17$621
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 11/255:00 amSTL - UVF
1 stop8h 00mAmerican Airlines
Tue 12/22:28 pmUVF - STL
1 stop10h 04mAmerican Airlines
Deal found 8/17$625
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Thu 10/236:35 pmMCI - UVF
1 stop17h 30mAmerican Airlines
Mon 10/272:40 pmUVF - MCI
1 stop10h 29mAmerican Airlines
Deal found 8/15$641
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 11/145:05 amMCI - UVF
1 stop8h 45mAmerican Airlines
Tue 11/184:50 pmUVF - MCI
1 stop9h 09mAmerican Airlines
Deal found 8/15$662
This American Airlines deal was found by Cheapflights users on 8/16. 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.
Mon 10/205:23 amSTL - UVF
1 stop8h 37mAmerican Airlines
Fri 10/244:00 pmUVF - STL
2 stops18h 41mAmerican Airlines
Deal found 8/16$686
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:00 amMCI - UVF
1 stop7h 10mDelta
Tue 11/184:35 pmUVF - MCI
1 stop9h 22mDelta
Deal found 8/17$708
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 10/16:00 pmSTL - UVF
2 stops19h 17mAmerican Airlines
Wed 10/82:56 pmUVF - STL
2 stops22h 16mAmerican Airlines
Deal found 8/17$711
This American Airlines deal was found by Cheapflights users on 8/17. 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 10/185:09 pmSTL - UVF
2 stops19h 31mAmerican Airlines
Tue 10/212:56 pmUVF - STL
2 stops21h 55mAmerican Airlines
Deal found 8/17$720
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 10/86:08 pmSTL - UVF
2 stops19h 52mAmerican Airlines
Sat 10/112:56 pmUVF - STL
2 stops18h 20mAmerican Airlines
Deal found 8/17$736
This American Airlines deal was found by Cheapflights users on 8/17. 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 10/56:15 pmMCI - UVF
2 stops19h 45mAmerican Airlines
Sat 10/112:56 pmUVF - MCI
1 stop9h 03mAmerican Airlines
Deal found 8/17$745

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Saint Lucia 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 August 17, 2025.
Use the filters below to find and compare flights from Missouri to Saint Lucia that are best for you.

Fly from

Missouri

Fly to

Saint Lucia

Route

Depart

Return

Price

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Mon 10/20

4:05 pm-2:15 pm

1 stop21h 10m

Castries Hewanorra

Fri 10/24

3:10 pm-3:18 pm

1 stop25h 08m

$494

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Fri 1/2

6:00 am-3:07 pm

1 stop7h 07m

Castries Hewanorra

Thu 1/8

4:24 pm-11:40 pm

1 stop9h 16m

$600

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Fri 1/2

7:06 pm-2:45 pm

2 stops17h 39m

Castries Hewanorra

Thu 1/8

5:10 pm-11:08 am

2 stops19h 58m

$605

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Wed 10/29

4:45 pm-1:56 pm

2 stops20h 11m

Castries Hewanorra

Tue 11/4

4:50 pm-11:42 am

2 stops20h 52m

$605

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Wed 10/15

7:46 pm-1:40 pm

2 stops16h 54m

Castries Hewanorra

Wed 10/22

2:56 pm-10:53 am

2 stops20h 57m

$621

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Tue 11/25

6:45 pm-3:00 pm

1 stop18h 15m

Castries Hewanorra

Tue 12/2

4:04 pm-12:05 am

1 stop10h 01m

$625

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Thu 10/23

6:35 pm-1:05 pm

1 stop17h 30m

Castries Hewanorra

Mon 10/27

2:40 pm-12:09 am

1 stop10h 29m

$641

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Fri 11/14

5:05 am-3:50 pm

1 stop8h 45m

Castries Hewanorra

Tue 11/18

4:50 pm-11:59 pm

1 stop9h 09m

$662

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Mon 9/29

6:26 pm-2:17 pm

2 stops18h 51m

Castries Hewanorra

Mon 10/6

2:40 pm-9:01 am

2 stops19h 21m

$667

Kansas CityCastries

MCI - SLU

MCISLU

Kansas City

Thu 10/16

5:15 am-11:30 am

3 stops29h 15m

Castries George F. L. Charle

Tue 10/21

3:45 pm-11:46 pm

3 stops33h 01m

$1,593

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 20 results
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Best time to book a flight from Missouri to Saint Lucia

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

What is the cheapest month to book a flight from Missouri to Saint Lucia?

Currently, January is the cheapest month in which you can book a flight from Missouri to Saint Lucia (average of $556). Flying from Missouri 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.

Related info for your journey

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

  • Can I find deals for flights from Missouri to Saint Lucia that include hotel bookings?

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

  • How can I find direct flights from Missouri to Saint Lucia?

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

  • Can I find deals for business class flights from Missouri to Saint Lucia?

    Yes. Cheapflights offers flight deals from Missouri 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 Missouri to Saint Lucia?

    Currently, January is the cheapest month in which you can book a flight from Missouri to Saint Lucia (average of $556). Flying from Missouri 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Missouri to Saint Lucia

Discover the top 2 airlines that operate flights from Missouri to Saint Lucia. 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 August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$509Average$777FlexibilityNo cancel feeOn-time71%
DeltaCheapest$539Average$787FlexibilityNo cancel feeOn-timeN/A

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