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Cheap flights from Missouri to Saint Lucia from $323

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Saint Lucia departing on 1/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Missouri to Saint Lucia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 4:20 pmSTL-UVF
22h 15m1 stop
Air Canada Logo
5:15 pm - 3:29 pmUVF-STL
24h 14m1 stop
$442Air Canada
Find Deal
Tue, Jan 6 - Wed, Jan 14
Air Canada Logo
4:05 pm - 3:30 pmSTL-UVF
22h 25m1 stop
Air Canada Logo
4:20 pm - 3:24 pmUVF-STL
24h 04m1 stop
$548Air Canada
Find Deal
Sun, Mar 29 - Fri, Apr 3
American Airlines Logo
7:34 am - 1:15 pmSTL-UVF
28h 41m1 stop
American Airlines Logo
4:05 pm - 8:05 amUVF-STL
17h 00m1 stop
$584American Airlines
Find Deal
Sat, Apr 25 - Fri, May 1
American Airlines Logo
2:34 pm - 1:15 pmSTL-UVF
21h 41m1 stop
American Airlines Logo
4:05 pm - 9:59 amUVF-STL
18h 54m2 stops
$588American Airlines
Find Deal
Sat, Apr 25 - Fri, May 1
Delta Logo
5:50 am - 3:05 pmMCI-UVF
7h 15m1 stop
Delta Logo
4:25 pm - 11:51 pmUVF-MCI
9h 26m1 stop
$591Delta
Find Deal
Wed, Jan 21 - Wed, Jan 28
American Airlines Logo
6:00 pm - 1:15 pmSTL-UVF
18h 15m2 stops
American Airlines Logo
4:05 pm - 9:59 amUVF-STL
18h 54m2 stops
$592American Airlines
Find Deal
Sat, Apr 25 - Fri, May 1
Delta Logo
6:42 pm - 2:04 pmMCI-UVF
18h 22m1 stop
Delta Logo
3:20 pm - 9:31 amUVF-MCI
19h 11m1 stop
$708Delta
Find Deal
Thu, Apr 9 - Fri, Apr 17
Multiple Airlines Logo
12:31 pm - 9:30 amSTL-SLU
18h 59m3 stops
Multiple Airlines Logo
12:35 pm - 3:29 pmSLU-STL
28h 54m2 stops
$1,456Multiple Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
Multiple Airlines Logo
8:00 am - 3:35 pmSTL-SLU
29h 35m3 stops
Multiple Airlines Logo
12:35 pm - 3:29 pmSLU-STL
28h 54m2 stops
$1,524Multiple Airlines
Find Deal
Sun, Nov 23 - Mon, Dec 1
United Airlines Logo
6:30 am - 4:25 pmSTL-UVF
7h 55m1 stop
United Airlines Logo
1:52 pm - 9:43 pmUVF-STL
9h 51m1 stop
$2,019United Airlines
Find Deal
Sat, Dec 20 - Sat, Dec 27

Delta flights from Missouri to Saint Lucia

Our best Delta deals on Missouri to Saint Lucia flight tickets
Delta
Jan 21
MCI5:50 amKansas City
7h 15m
1 stop
UVF3:05 pmCastries Hewanorra
Jan 28
UVF4:25 pmCastries Hewanorra
9h 26m
1 stop
MCI11:51 pmKansas City
$591
Find similar
Delta
Apr 9
MCI6:42 pmKansas City
18h 22m
1 stop
UVF2:04 pmCastries Hewanorra
Apr 17
UVF3:20 pmCastries Hewanorra
19h 11m
1 stop
MCI9:31 amKansas City
$708
Find similar
Delta
Apr 8
MCI6:42 pmKansas City
18h 22m
1 stop
UVF2:04 pmCastries Hewanorra
Apr 19
UVF3:20 pmCastries Hewanorra
9h 35m
1 stop
MCI11:55 pmKansas City
$949
Find similar

American Airlines flights from Missouri to Saint Lucia

Our best American Airlines deals on Missouri to Saint Lucia flight tickets
American Airlines
Apr 25
STL7:34 amLambert-St Louis
28h 41m
1 stop
UVF1:15 pmCastries Hewanorra
May 1
UVF4:05 pmCastries Hewanorra
17h 00m
1 stop
STL8:05 amLambert-St Louis
$584
Find similar
American Airlines
Apr 25
STL2:34 pmLambert-St Louis
21h 41m
1 stop
UVF1:15 pmCastries Hewanorra
May 1
UVF4:05 pmCastries Hewanorra
18h 54m
2 stops
STL9:59 amLambert-St Louis
$588
Find similar
American Airlines
Apr 25
STL6:00 pmLambert-St Louis
18h 15m
2 stops
UVF1:15 pmCastries Hewanorra
May 1
UVF4:05 pmCastries Hewanorra
18h 54m
2 stops
STL9:59 amLambert-St Louis
$592
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Missouri to Saint Lucia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Tue 1/6

4:05 pm-4:20 pm

1 stop22h 15m

Castries Hewanorra

Wed 1/14

5:15 pm-3:29 pm

1 stop24h 14m

$442

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sun 3/29

4:05 pm-3:30 pm

1 stop22h 25m

Castries Hewanorra

Fri 4/3

4:20 pm-3:24 pm

1 stop24h 04m

$548

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 4/25

7:34 am-1:15 pm

1 stop28h 41m

Castries Hewanorra

Fri 5/1

4:05 pm-8:05 am

1 stop17h 00m

$584

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 4/25

2:34 pm-1:15 pm

1 stop21h 41m

Castries Hewanorra

Fri 5/1

4:05 pm-9:59 am

2 stops18h 54m

$588

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Wed 1/21

5:50 am-3:05 pm

1 stop7h 15m

Castries Hewanorra

Wed 1/28

4:25 pm-11:51 pm

1 stop9h 26m

$591

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 4/25

6:00 pm-1:15 pm

2 stops18h 15m

Castries Hewanorra

Fri 5/1

4:05 pm-9:59 am

2 stops18h 54m

$592

Kansas CityCastries

MCI - UVF

MCIUVF

Kansas City

Thu 4/9

6:42 pm-2:04 pm

1 stop18h 22m

Castries Hewanorra

Fri 4/17

3:20 pm-9:31 am

1 stop19h 11m

$708

St. LouisCastries

STL - SLU

STLSLU

Lambert-St Louis

Tue 11/25

12:31 pm-9:30 am

3 stops18h 59m

Castries George F. L. Charle

Mon 12/1

12:35 pm-3:29 pm

2 stops28h 54m

$1,456

St. LouisCastries

STL - SLU

STLSLU

Lambert-St Louis

Sun 11/23

8:00 am-3:35 pm

3 stops29h 35m

Castries George F. L. Charle

Mon 12/1

12:35 pm-3:29 pm

2 stops28h 54m

$1,524

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 12/20

6:30 am-4:25 pm

1 stop7h 55m

Castries Hewanorra

Sat 12/27

1:52 pm-9:43 pm

1 stop9h 51m

$2,019

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Saint Lucia from

How to get the cheapest flight ticket from Missouri to Saint Lucia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Saint Lucia?

Our data shows that Wednesday is the least expensive day to fly to Saint Lucia. Tickets to fly out on this day can be as low as $591. On the other hand, Thursday is the most expensive day to depart from Missouri because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $862.

Cheap Missouri to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Saint Lucia

Direct flights

None
There are no direct flights from Missouri to Saint Lucia. There are no popular flight routes from Missouri to Saint Lucia.
Search flight deals

  • When did momondo last update prices for flights from Missouri to Saint Lucia?

    Prices for flights from Missouri to Saint Lucia were last updated today.

  • How many operators does momondo search for flights from Missouri to Saint Lucia?

  • How old do you have to be to fly from Missouri to Saint Lucia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Missouri to Saint Lucia.

  • What documentation or ID do you need to fly to Saint Lucia?

    The required travel and health documents for your Saint Lucia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Saint Lucia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Missouri to Saint Lucia

Compare and see reviews for airlines that fly from Missouri to Saint Lucia with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $559Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
DeltaPriceFrom $565Free CancellationRating
7.9
8,001 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Saint Lucia?

It is quick and easy to find Missouri to Saint Lucia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Saint Lucia that suits you.

Can I find flights from Missouri to Saint Lucia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Saint Lucia from Missouri which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Missouri to Saint Lucia?

Once you have performed a search for Missouri to Saint Lucia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Missouri to Saint Lucia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Missouri to Saint Lucia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Saint Lucia trip

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Popular flights according to clicks in the last 7 days on momondo
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