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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 3/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UVF
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
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 October 27, 2025.

This Delta deal was found by Cheapflights users on 10/26. 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.
Tue 11/256:00 amSTL - UVF
1 stop7h 39mDelta
Tue 12/24:56 pmUVF - STL
1 stop17h 28mDelta
Deal found 10/26$617
This American Airlines deal was found by Cheapflights users on 10/27. 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 12/116:39 pmMCI - UVF
2 stops16h 40mAmerican Airlines
Thu 12/184:54 pmUVF - MCI
2 stops20h 32mAmerican Airlines
Deal found 10/27$634
This American Airlines deal was found by Cheapflights users on 10/27. 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 02mAmerican Airlines
Tue 12/24:05 pmUVF - STL
1 stop9h 02mAmerican Airlines
Deal found 10/27$672
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/236:36 pmMCI - UVF
1 stop18h 28mAmerican Airlines
Sun 12/74:53 pmUVF - MCI
1 stop9h 32mAmerican Airlines
Deal found 10/26$697
This American Airlines deal was found by Cheapflights users on 10/26. 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
Mon 12/14:04 pmUVF - STL
1 stop23h 11mAmerican Airlines
Deal found 10/26$742
This Air Canada deal was found by Cheapflights users on 10/25. 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.
Tue 12/164:05 pmSTL - UVF
1 stop22h 15mAir Canada
Mon 12/225:15 pmUVF - STL
1 stop24h 14mAir Canada
Deal found 10/25$753
This American Airlines deal was found by Cheapflights users on 10/26. 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 12/105:30 pmSTL - UVF
2 stops20h 23mAmerican Airlines
Wed 12/174:53 pmUVF - STL
2 stops20h 03mAmerican Airlines
Deal found 10/26$771
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/95:15 amSTL - UVF
1 stop8h 37mAmerican Airlines
Thu 11/132:19 pmUVF - STL
1 stop10h 08mAmerican Airlines
Deal found 10/26$795
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:05 pmSTL - UVF
1 stop22h 20mMultiple Airlines
Thu 11/133:40 pmUVF - STL
3 stops24h 44mMultiple Airlines
Deal found 10/26$814
This American Airlines deal was found by Cheapflights users on 10/27. 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 11/65:35 pmMCI - UVF
2 stops17h 44mAmerican Airlines
Mon 11/104:52 pmUVF - MCI
2 stops21h 57mAmerican Airlines
Deal found 10/27$897
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:05 pmSTL - SLU
2 stops23h 25mMultiple Airlines
Sun 11/165:00 amSLU - STL
2 stops14h 16mMultiple Airlines
Deal found 10/26$925
This Delta deal was found by Cheapflights users on 10/25. 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 11/145:50 amMCI - UVF
1 stop7h 49mDelta
Tue 11/184:59 pmUVF - MCI
1 stop8h 51mDelta
Deal found 10/25$926

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 October 27, 2025.

Round-trip from

$580
(American Airlines)

One-way from

$298
(American Airlines)

Popular in

June

Cheapest in

August

Average price

$712
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 ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 27, 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

5:04 pm-4:02 pm

2 stops20h 58m

Castries Hewanorra

Thu 2/5

5:02 pm-10:21 am

2 stops19h 19m

$580

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Sun 1/11

5:00 am-4:02 pm

1 stop9h 02m

Castries Hewanorra

Fri 1/16

2:56 pm-11:59 pm

1 stop11h 03m

$591

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Fri 4/24

6:00 am-2:08 pm

1 stop7h 08m

Castries Hewanorra

Thu 4/30

3:20 pm-11:38 pm

1 stop9h 18m

$600

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 4/25

6:00 am-2:08 pm

1 stop7h 08m

Castries Hewanorra

Thu 4/30

3:20 pm-11:38 pm

1 stop9h 18m

$600

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Wed 2/18

5:05 am-4:02 pm

1 stop8h 57m

Castries Hewanorra

Mon 2/23

5:02 pm-1:16 pm

2 stops22h 14m

$605

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 1/17

5:04 pm-4:02 pm

2 stops20h 58m

Castries Hewanorra

Thu 1/22

4:06 pm-10:21 am

2 stops20h 15m

$605

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Mon 2/16

6:50 pm-4:02 pm

2 stops19h 12m

Castries Hewanorra

Mon 2/23

5:02 pm-11:00 am

2 stops19h 58m

$605

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Thu 12/11

6:39 pm-1:19 pm

2 stops16h 40m

Castries Hewanorra

Thu 12/18

4:54 pm-11:26 am

2 stops20h 32m

$634

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Thu 11/6

6:36 pm-3:04 pm

1 stop18h 28m

Castries Hewanorra

Mon 11/10

4:52 pm-9:54 am

2 stops19h 02m

$897

St. LouisCastries

STL - SLU

STLSLU

Lambert-St Louis

Sun 11/9

4:05 pm-5:30 pm

2 stops23h 25m

Castries George F. L. Charle

Sun 11/16

5:00 am-5:16 pm

2 stops14h 16m

$925

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 17 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 $520). 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 $600, American Airlines can have you in Saint Lucia from Missouri in 7h 08m. There are 2489 mi between Missouri and Saint Lucia. This flight may include one or multiple stops.

  • 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 $520). 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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$539Average$771FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$559Average$773FlexibilityNo cancel feeOn-time71%

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