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Cheap flights from St. Louis to Saint Lucia from $524

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Saint Lucia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 3:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
22h 35m1 stop Toronto Pearson Intl
Air Canada Logo
5:40 pm - 3:26 pmUVF  Castries Hewanorra-STL Lambert-St Louis
23h 46m1 stop Toronto Pearson Intl
$524Air Canada
Thu, Oct 29 - Fri, Nov 6
Air Canada Logo
4:05 pm - 4:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
22h 35m1 stop Toronto Pearson Intl
Air Canada Logo
5:40 pm - 3:26 pmUVF  Castries Hewanorra-STL Lambert-St Louis
23h 46m1 stop Toronto Pearson Intl
$566Air Canada
Sat, Dec 5 - Sun, Dec 13
Air Canada Logo
4:05 pm - 4:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
22h 35m1 stop Toronto Pearson Intl
Air Canada Logo
5:40 pm - 3:26 pmUVF  Castries Hewanorra-STL Lambert-St Louis
23h 46m1 stop Toronto Pearson Intl
$651Air Canada
Sun, Feb 7 - Thu, Feb 11
American Airlines Logo
5:59 pm - 1:47 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
17h 48m2 stops Washington, D.C. Reagan-National Miami
American Airlines Logo
5:02 pm - 9:16 amUVF  Castries Hewanorra-STL Lambert-St Louis
18h 14m2 stops Miami Washington, D.C. Reagan-National
$735American Airlines
Sun, Feb 7 - Thu, Feb 11
American Airlines Logo
5:15 am - 4:02 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
8h 47m1 stop Miami
American Airlines Logo
5:02 pm - 12:46 pmUVF  Castries Hewanorra-STL Lambert-St Louis
21h 44m2 stops Miami Charlotte Douglas
$735American Airlines
Sun, Feb 7 - Thu, Feb 11
Air Canada Logo
4:05 pm - 4:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
22h 35m1 stop Toronto Pearson Intl
Air Canada Logo
5:45 pm - 3:26 pmUVF  Castries Hewanorra-STL Lambert-St Louis
23h 41m1 stop Toronto Pearson Intl
$756Air Canada
Tue, Feb 23 - Mon, Mar 1
American Airlines Logo
6:09 pm - 1:47 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
17h 38m1 stop Miami
American Airlines Logo
2:56 pm - 10:05 pmUVF  Castries Hewanorra-STL Lambert-St Louis
9h 09m1 stop Miami
$765American Airlines
Thu, Jan 7 - Tue, Jan 12
Delta Logo
6:00 am - 2:12 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
7h 12m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:32 pm - 11:54 pmUVF  Castries Hewanorra-STL Lambert-St Louis
9h 22m1 stop Atlanta Hartsfield-Jackson
$790Delta
Wed, Sep 30 - Tue, Oct 6
Delta Logo
6:00 am - 2:12 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
7h 12m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:32 pm - 11:42 pmUVF  Castries Hewanorra-STL Lambert-St Louis
9h 10m1 stop Atlanta Hartsfield-Jackson
$825Delta
Tue, Sep 29 - Mon, Oct 5
Delta Logo
6:00 am - 2:12 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
7h 12m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:32 pm - 11:54 pmUVF  Castries Hewanorra-STL Lambert-St Louis
9h 22m1 stop Atlanta Hartsfield-Jackson
$860Delta
Fri, Oct 2 - Mon, Oct 12

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Air Canada flights from St. Louis to Saint Lucia

Our best Air Canada deals on St. Louis to Saint Lucia flight tickets
Air Canada
Oct 29
STL4:05 pmLambert-St Louis
22h 35m
1 stop
UVF3:40 pmCastries Hewanorra
Nov 6
UVF5:40 pmCastries Hewanorra
23h 46m
1 stop
STL3:26 pmLambert-St Louis
$524
Air Canada
Dec 5
STL4:05 pmLambert-St Louis
22h 35m
1 stop
UVF4:40 pmCastries Hewanorra
Dec 13
UVF5:40 pmCastries Hewanorra
23h 46m
1 stop
STL3:26 pmLambert-St Louis
$566
Air Canada
Feb 7
STL4:05 pmLambert-St Louis
22h 35m
1 stop
UVF4:40 pmCastries Hewanorra
Feb 11
UVF5:40 pmCastries Hewanorra
23h 46m
1 stop
STL3:26 pmLambert-St Louis
$651

American Airlines flights from St. Louis to Saint Lucia

Our best American Airlines deals on St. Louis to Saint Lucia flight tickets
American Airlines
Feb 7
STL5:59 pmLambert-St Louis
17h 48m
2 stops
UVF1:47 pmCastries Hewanorra
Feb 11
UVF5:02 pmCastries Hewanorra
18h 14m
2 stops
STL9:16 amLambert-St Louis
$735
American Airlines
Oct 30
STL5:00 amLambert-St Louis
7h 42m
1 stop
UVF1:42 pmCastries Hewanorra
Nov 6
UVF2:32 pmCastries Hewanorra
9h 15m
1 stop
STL9:47 pmLambert-St Louis
$765
American Airlines
Oct 30
STL5:40 pmLambert-St Louis
19h 02m
2 stops
UVF1:42 pmCastries Hewanorra
Nov 6
UVF2:32 pmCastries Hewanorra
9h 15m
1 stop
STL9:47 pmLambert-St Louis
$770

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Saint Lucia that are best for you.

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Route

Depart

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Price

Cheapest round-trip

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Thu 10/29

4:05 pm-3:40 pm

1 stop22h 35m

Castries Hewanorra

Fri 11/6

5:40 pm-3:26 pm

1 stop23h 46m

$524

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sat 12/5

4:05 pm-4:40 pm

1 stop22h 35m

Castries Hewanorra

Sun 12/13

5:40 pm-3:26 pm

1 stop23h 46m

$566

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sun 2/7

4:05 pm-4:40 pm

1 stop22h 35m

Castries Hewanorra

Thu 2/11

5:40 pm-3:26 pm

1 stop23h 46m

$651

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sun 2/7

5:59 pm-1:47 pm

2 stops17h 48m

Castries Hewanorra

Thu 2/11

5:02 pm-9:16 am

2 stops18h 14m

$735

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sun 2/7

5:15 am-4:02 pm

1 stop8h 47m

Castries Hewanorra

Thu 2/11

5:02 pm-12:46 pm

2 stops21h 44m

$735

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Tue 2/23

4:05 pm-4:40 pm

1 stop22h 35m

Castries Hewanorra

Mon 3/1

5:45 pm-3:26 pm

1 stop23h 41m

$756

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Thu 1/7

6:09 pm-1:47 pm

1 stop17h 38m

Castries Hewanorra

Tue 1/12

2:56 pm-10:05 pm

1 stop9h 09m

$765

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Wed 9/30

6:00 am-2:12 pm

1 stop7h 12m

Castries Hewanorra

Tue 10/6

3:32 pm-11:54 pm

1 stop9h 22m

$790
Quickest round-trip

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Tue 9/29

6:00 am-2:12 pm

1 stop7h 12m

Castries Hewanorra

Mon 10/5

3:32 pm-11:42 pm

1 stop9h 10m

$825

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Fri 10/2

6:00 am-2:12 pm

1 stop7h 12m

Castries Hewanorra

Mon 10/12

3:32 pm-11:54 pm

1 stop9h 22m

$860

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint Lucia from

How to get the cheapest flight ticket from St. Louis 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 month to fly to Saint Lucia?

The month of July is, on average, the cheapest month to fly to Saint Lucia from St. Louis, with most prices found around $573. If you aren’t able to travel to Saint Lucia during the month of July, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $713.

Cheap St. Louis to Saint Lucia flight deals and tips

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

Best Price Found

$524

Fastest flight time

7h 05m

Direct flights

None
The best flight deal from St. Louis to Saint Lucia found on momondo in the last 72 hours is $524
The fastest flight from St. Louis to Saint Lucia takes 7h 05m
There are no direct flights from St. Louis to Saint Lucia. There are no popular flight routes from St. Louis to Saint Lucia.
Search flight deals

Frequently asked questions about flying from St. Louis to Saint Lucia

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Saint Lucia?

    Prices for flights from Lambert-St Louis Airport to Saint Lucia were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Saint Lucia?

  • How old do you have to be to fly from Lambert-St Louis Airport to Saint Lucia?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Saint Lucia.

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

    The necessary travel and health documents for your Saint Lucia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Saint Lucia

Compare and see reviews for airlines that fly from St. Louis to Saint Lucia with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $600Free CancellationRating
7.1
12,010 reviews
Search American Airlines flights
DeltaPriceFrom $620Free CancellationRating
7.8
8,531 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Saint Lucia?

Finding the right flight to Saint Lucia from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Lucia quick and easy, saving you time and money.

Can I find flights from St. Louis to Saint Lucia with flexible booking policies on momondo?

All flight searches from St. Louis to Saint Lucia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Saint Lucia?

momondo provides multiple filters to help you find the best flight to Saint Lucia from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Saint Lucia from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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