How long is the flight from Missouri to Saint Lucia?

The flight from Missouri to Saint Lucia depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from St. Louis (a popular airport in Missouri) to Castries (the most popular airport in Saint Lucia), then the flight time is 7h 05m on average. If you fly from Kansas City (another popular airport in Missouri) to Castries, then the average flight time is 7h 20m.

What is the cheapest airline that flies from Missouri to Saint Lucia?

American Airlines, United Airlines, and Delta are the most popular carriers operating from Missouri to Saint Lucia

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?

As of September 2026, there are 2 operators available to choose from 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.

$343 Cheap Flights from Missouri to Saint Lucia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Missouri to Saint Lucia

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:55 am - 3:40 pmSTL Lambert-St Louis-UVF Castries Hewanorra

29h 45m1 stop Toronto Pearson Intl

4:40 pm - 3:23 pmUVF Castries Hewanorra-STL Lambert-St Louis

23h 43m1 stop Toronto Pearson Intl

$415Air Canada

Sat, Oct 24 - Fri, Oct 30

12:10 pm - 3:40 pmSTL Lambert-St Louis-UVF Castries Hewanorra

26h 30m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

4:40 pm - 3:23 pmUVF Castries Hewanorra-STL Lambert-St Louis

23h 43m1 stop Toronto Pearson Intl

$444Air Canada

Sat, Oct 24 - Fri, Oct 30

2:40 pm - 3:40 pmSTL Lambert-St Louis-UVF Castries Hewanorra

24h 00m1 stop Toronto Pearson Intl

4:40 pm - 3:23 pmUVF Castries Hewanorra-STL Lambert-St Louis

23h 43m1 stop Toronto Pearson Intl

$464Air Canada

Sat, Oct 24 - Fri, Oct 30

12:10 pm - 3:40 pmSTL Lambert-St Louis-UVF Castries Hewanorra

26h 30m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

4:40 pm - 3:23 pmUVF Castries Hewanorra-STL Lambert-St Louis

23h 43m1 stop Toronto Pearson Intl

$467Air Canada

Sat, Oct 24 - Fri, Oct 30

5:00 am - 4:02 pmMCI Kansas City-UVF Castries Hewanorra

9h 02m1 stop Miami

4:58 pm - 12:39 amUVF Castries Hewanorra-MCI Kansas City

9h 41m1 stop Miami

$634American Airlines

Tue, Mar 2 - Thu, Mar 11

5:01 am - 3:04 pmMCI Kansas City-UVF Castries Hewanorra

9h 03m1 stop Miami

4:41 pm - 11:59 pmUVF Castries Hewanorra-MCI Kansas City

9h 18m1 stop Miami

$634American Airlines

Tue, Oct 27 - Tue, Nov 3

5:00 am - 4:02 pmMCI Kansas City-UVF Castries Hewanorra

9h 02m1 stop Miami

3:51 pm - 12:39 amUVF Castries Hewanorra-MCI Kansas City

10h 48m1 stop Miami

$639American Airlines

Wed, Mar 3 - Tue, Mar 9

5:40 am - 3:05 pmMCI Kansas City-UVF Castries Hewanorra

7h 25m1 stop Atlanta Hartsfield-Jackson

4:25 pm - 11:58 pmUVF Castries Hewanorra-MCI Kansas City

9h 33m1 stop Atlanta Hartsfield-Jackson

$676Delta

Mon, Feb 1 - Sun, Feb 7

6:00 am - 3:05 pmSTL Lambert-St Louis-UVF Castries Hewanorra

7h 05m1 stop Atlanta Hartsfield-Jackson

4:25 pm - 11:39 pmUVF Castries Hewanorra-STL Lambert-St Louis

9h 14m1 stop Atlanta Hartsfield-Jackson

$735Delta

Thu, Jan 7 - Tue, Jan 12

5:40 am - 2:12 pmMCI Kansas City-UVF Castries Hewanorra

7h 32m1 stop Atlanta Hartsfield-Jackson

4:32 pm - 11:56 pmUVF Castries Hewanorra-MCI Kansas City

9h 24m1 stop Atlanta Hartsfield-Jackson

$770Delta

Mon, Oct 26 - Sun, Nov 1

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American Airlines flights from Missouri to Saint Lucia

Our best American Airlines deals on Missouri to Saint Lucia flight tickets

American Airlines

Oct 27

MCI5:01 amKansas City

9h 03m

1 stop

UVF3:04 pmCastries Hewanorra

Nov 3

UVF4:41 pmCastries Hewanorra

9h 18m

1 stop

MCI11:59 pmKansas City

$634

American Airlines

Oct 27

MCI5:20 pmKansas City

20h 44m

2 stops

UVF3:04 pmCastries Hewanorra

Nov 3

UVF4:41 pmCastries Hewanorra

19h 37m

2 stops

MCI10:18 amKansas City

$639

American Airlines

Mar 3

MCI5:00 amKansas City

9h 02m

1 stop

UVF4:02 pmCastries Hewanorra

Mar 9

UVF3:51 pmCastries Hewanorra

18h 50m

2 stops

MCI8:41 amKansas City

$644

Air Canada flights from Missouri to Saint Lucia

Our best Air Canada deals on Missouri to Saint Lucia flight tickets

Air Canada

Oct 24

STL8:55 amLambert-St Louis

29h 45m

1 stop

UVF3:40 pmCastries Hewanorra

Oct 30

UVF4:40 pmCastries Hewanorra

23h 43m

1 stop

STL3:23 pmLambert-St Louis

$415

Air Canada

Oct 24

STL12:10 pmLambert-St Louis

26h 30m

2 stops

UVF3:40 pmCastries Hewanorra

Oct 30

UVF4:40 pmCastries Hewanorra

23h 43m

1 stop

STL3:23 pmLambert-St Louis

$444

Air Canada

Oct 24

STL2:40 pmLambert-St Louis

24h 00m

1 stop

UVF3:40 pmCastries Hewanorra

Oct 30

UVF4:40 pmCastries Hewanorra

23h 43m

1 stop

STL3:23 pmLambert-St Louis

$464

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sat 10/24

8:55 am-3:40 pm

1 stop29h 45m

Castries Hewanorra

Fri 10/30

4:40 pm-3:23 pm

1 stop23h 43m

$415

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sat 10/24

12:10 pm-3:40 pm

2 stops26h 30m

Castries Hewanorra

Fri 10/30

4:40 pm-3:23 pm

1 stop23h 43m

$444

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sat 10/24

2:40 pm-3:40 pm

1 stop24h 00m

Castries Hewanorra

Fri 10/30

4:40 pm-3:23 pm

1 stop23h 43m

$464

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sat 10/24

12:10 pm-3:40 pm

2 stops26h 30m

Castries Hewanorra

Fri 10/30

4:40 pm-3:23 pm

1 stop23h 43m

$467

Kansas CityCastries

MCI Kansas City - UVF Castries Hewanorra

MCIUVF

Kansas City

Tue 3/2

5:00 am-4:02 pm

1 stop9h 02m

Castries Hewanorra

Thu 3/11

4:58 pm-12:39 am

1 stop9h 41m

$634

Kansas CityCastries

MCI Kansas City - UVF Castries Hewanorra

MCIUVF

Kansas City

Tue 10/27

5:01 am-3:04 pm

1 stop9h 03m

Castries Hewanorra

Tue 11/3

4:41 pm-11:59 pm

1 stop9h 18m

$634

Kansas CityCastries

MCI Kansas City - UVF Castries Hewanorra

MCIUVF

Kansas City

Wed 3/3

5:00 am-4:02 pm

1 stop9h 02m

Castries Hewanorra

Tue 3/9

3:51 pm-12:39 am

1 stop10h 48m

$639

Kansas CityCastries

MCI Kansas City - UVF Castries Hewanorra

MCIUVF

Kansas City

Mon 2/1

5:40 am-3:05 pm

1 stop7h 25m

Castries Hewanorra

Sun 2/7

4:25 pm-11:58 pm

1 stop9h 33m

$676

Quickest round-trip

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Thu 1/7

6:00 am-3:05 pm

1 stop7h 05m

Castries Hewanorra

Tue 1/12

4:25 pm-11:39 pm

1 stop9h 14m

$735

Kansas CityCastries

MCI Kansas City - UVF Castries Hewanorra

MCIUVF

Kansas City

Mon 10/26

5:40 am-2:12 pm

1 stop7h 32m

Castries Hewanorra

Sun 11/1

4:32 pm-11:56 pm

1 stop9h 24m

$770

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Saint Lucia?

The month of August is, on average, the cheapest month to fly to Saint Lucia from Missouri, with most prices found around $708. If you aren’t able to travel to Saint Lucia during the month of August, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $709.

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

Best Price Found	$343
Fastest flight time	7h 05m
Direct flights	None

The best one-way flight to Saint Lucia from Missouri in the past 72 hours is $343. The best round-trip flight deal from Missouri to Saint Lucia found on momondo in the last 72 hours is $415.

The fastest flight from Missouri to Saint Lucia takes 7h 05m

There are no direct flights from Missouri to Saint Lucia. There are no popular flight routes from Missouri to Saint Lucia.

Search flight deals

Frequently asked questions about flying from Missouri to Saint Lucia

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?
As of September 2026, there are 2 operators available to choose from 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 Airlines	PriceFrom $616	Free Cancellation	Rating 7.1 12,063 reviews		Search American Airlines flights
Delta	PriceFrom $620	Free Cancellation	Rating 7.8 8,570 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.

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Flights to Castriesfrom $609

Cheap flights from Missouri to Saint Lucia from $343

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 10/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Missouri to Saint Lucia

Our best American Airlines deals on Missouri to Saint Lucia flight tickets

Air Canada flights from Missouri to Saint Lucia

Our best Air Canada deals on Missouri to Saint Lucia flight tickets

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

What is the cheapest month to fly to Saint Lucia?

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How long is the flight from Missouri to Saint Lucia?

Cheap Missouri to Saint Lucia flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Missouri to Saint Lucia

Best airlines flying from Missouri to Saint Lucia

Compare and see reviews for airlines that fly from Missouri to Saint Lucia with momondo

Why use momondo?

An easier way to manage your Saint Lucia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Saint Lucia

Popular cities in Saint Lucia

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

Missouri flight routes

According to popular flight searches on momondo this year

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List of cabin classes available on flights landing in Saint Lucia. Availability may vary depending on flight origin and airline.

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