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Saint Lucia

$298+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UVF
Dec 11 — Dec 181
Thu 12/11
Thu 12/18
1 adult, Economy
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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 November 11, 2025.

This American Airlines deal was found by Cheapflights users on 11/10. 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 11/256:45 pmSTL - UVF
1 stop18h 15mAmerican Airlines
Tue 12/24:05 pmUVF - STL
1 stop9h 02mAmerican Airlines
Deal found 11/10$795
This American Airlines deal was found by Cheapflights users on 11/11. 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 11/257:58 pmSTL - UVF
2 stops17h 54mAmerican Airlines
Thu 11/274:52 pmUVF - STL
2 stops22h 25mAmerican Airlines
Deal found 11/11$800
This American Airlines deal was found by Cheapflights users on 11/9. 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 12/85:10 amSTL - UVF
1 stop8h 43mAmerican Airlines
Sun 12/144:53 pmUVF - STL
1 stop9h 06mAmerican Airlines
Deal found 11/9$831
This American Airlines deal was found by Cheapflights users on 11/11. 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 12/175:38 pmMCI - UVF
2 stops19h 14mAmerican Airlines
Thu 12/253:54 pmUVF - MCI
2 stops21h 32mAmerican Airlines
Deal found 11/11$832
This American Airlines deal was found by Cheapflights users on 11/11. 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 11/255:15 amSTL - UVF
1 stop8h 37mAmerican Airlines
Fri 11/284:04 pmUVF - STL
1 stop10h 01mAmerican Airlines
Deal found 11/11$981
This American Airlines deal was found by Cheapflights users on 11/9. 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 12/175:38 pmMCI - UVF
2 stops19h 14mAmerican Airlines
Mon 1/54:54 pmUVF - MCI
1 stop20h 08mAmerican Airlines
Deal found 11/9$1,008
This American Airlines deal was found by Cheapflights users on 11/9. 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 12/175:38 pmMCI - UVF
2 stops19h 14mAmerican Airlines
Tue 1/64:06 pmUVF - MCI
2 stops22h 59mAmerican Airlines
Deal found 11/9$1,017
This American Airlines deal was found by Cheapflights users on 11/8. 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 11/123:24 pmMCI - UVF
2 stops19h 55mAmerican Airlines
Fri 11/144:52 pmUVF - MCI
2 stops19h 02mAmerican Airlines
Deal found 11/8$1,041
This American Airlines deal was found by Cheapflights users on 11/10. 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 12/286:00 pmSTL - UVF
1 stop17h 04mAmerican Airlines
Thu 1/13:53 pmUVF - STL
2 stops20h 57mAmerican Airlines
Deal found 11/10$1,070
This American Airlines deal was found by Cheapflights users on 11/11. 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
Sun 11/304:04 pmUVF - STL
1 stop10h 01mAmerican Airlines
Deal found 11/11$1,071
This American Airlines deal was found by Cheapflights users on 11/10. 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 12/196:44 pmSTL - UVF
2 stops19h 09mAmerican Airlines
Mon 12/293:53 pmUVF - STL
1 stop10h 02mAmerican Airlines
Deal found 11/10$1,162
This American Airlines deal was found by Cheapflights users on 11/10. 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 11/141:45 pmMCI - UVF
2 stops21h 34mAmerican Airlines
Tue 11/184:52 pmUVF - MCI
2 stops21h 57mAmerican Airlines
Deal found 11/10$1,190

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 November 11, 2025.

Round-trip from

$575
(American Airlines)

One-way from

$298
(American Airlines)

Popular in

June

Cheapest in

August

Average price

$1,010
From Missouri to Saint Lucia
Search Deals
One-way flight from Missouri to Saint Lucia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($131 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 11, 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

Sat 1/31

3:54 pm-1:46 pm

2 stops19h 52m

Castries Hewanorra

Wed 2/4

5:02 pm-11:05 am

2 stops20h 03m

$580

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

$605

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sun 2/8

6:02 pm-1:46 pm

1 stop17h 44m

Castries Hewanorra

Sun 2/15

4:24 pm-8:52 am

2 stops18h 28m

$610

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Mon 2/23

4:06 pm-4:02 pm

2 stops21h 56m

Castries Hewanorra

Mon 3/2

4:24 pm-11:59 pm

1 stop9h 35m

$621

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Thu 4/9

6:08 pm-1:15 pm

2 stops18h 07m

Castries Hewanorra

Thu 4/16

4:05 pm-8:20 am

2 stops17h 15m

$621

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Mon 3/16

4:37 pm-1:30 pm

2 stops19h 53m

Castries Hewanorra

Mon 3/23

3:50 pm-10:43 am

2 stops19h 53m

$621

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Thu 1/22

6:02 pm-1:46 pm

1 stop17h 44m

Castries Hewanorra

Sun 1/25

4:06 pm-11:12 pm

1 stop9h 06m

$630

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Fri 1/30

5:04 pm-4:02 pm

2 stops20h 58m

Castries Hewanorra

Sun 2/8

4:06 pm-8:49 am

2 stops18h 43m

$635

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Thu 4/9

6:08 pm-1:15 pm

2 stops18h 07m

Castries Hewanorra

Mon 4/13

4:05 pm-10:39 am

1 stop19h 34m

$692

Kansas CityCastries

MCI - SLU

MCISLU

Kansas City

Sat 12/27

3:47 pm-3:35 pm

3 stops45h 48m

Castries George F. L. Charle

Sun 1/4

7:10 pm-10:59 pm

2 stops29h 49m

$1,454

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 25 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 $543). Flying from Missouri to Saint Lucia in July is currently the most expensive (average of $668). 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.

  • How long is the flight from Missouri to Saint Lucia?

    For as low as $580, American Airlines can have you in Saint Lucia from Missouri in 19h 52m. There are 2489 mi between Missouri and Saint Lucia.

  • 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 $543). Flying from Missouri to Saint Lucia in July is currently the most expensive (average of $668). 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 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 November 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$559Average$775FlexibilityNo cancel feeOn-time71%
DeltaCheapest$565Average$783FlexibilityNo cancel feeOn-timeN/A

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