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Cheap flights from St. Louis to Saint Lucia from $419

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
$553Air Canada
Thu, Oct 29 - Fri, Nov 6
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
$563Air Canada
Thu, Oct 29 - Fri, Nov 6
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
$573Air Canada
Thu, Oct 29 - Fri, Nov 6
American Airlines Logo
5:15 am - 4:02 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
8h 47m1 stop Miami
American Airlines Logo
4:05 pm - 11:12 pmUVF  Castries Hewanorra-STL Lambert-St Louis
9h 07m1 stop Charlotte Douglas
$765American Airlines
Thu, Jan 7 - Tue, Jan 12
American Airlines Logo
5:08 pm - 3:04 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
20h 56m2 stops Washington, D.C. Reagan-National Miami
American Airlines Logo
2:42 pm - 8:37 amUVF  Castries Hewanorra-STL Lambert-St Louis
18h 55m2 stops Miami Charlotte Douglas
$765American Airlines
Tue, Oct 13 - Tue, Oct 20
Delta Logo
6:00 am - 3:05 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
7h 05m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:25 pm - 11:39 pmUVF  Castries Hewanorra-STL Lambert-St Louis
9h 14m1 stop Atlanta Hartsfield-Jackson
$765Delta
Tue, Jan 19 - Sun, Jan 24
Delta Logo
6:00 am - 3:05 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
7h 05m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:25 pm - 11:39 pmUVF  Castries Hewanorra-STL Lambert-St Louis
9h 14m1 stop Atlanta Hartsfield-Jackson
$765Delta
Thu, Jan 7 - Tue, Jan 12
American Airlines Logo
7:10 pm - 3:04 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
18h 54m2 stops Dallas/Fort Worth Miami
American Airlines Logo
4:04 pm - 9:20 amUVF  Castries Hewanorra-STL Lambert-St Louis
18h 16m2 stops Miami Dallas/Fort Worth
$765American Airlines
Mon, Oct 12 - Tue, Oct 20
Multiple Airlines Logo
8:55 am - 7:00 pmSTL  Lambert-St Louis-SLU Castries George F. L. Charle
33h 05m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 8:20 pmSLU  Castries George F. L. Charle-STL Lambert-St Louis
32h 45m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$776Multiple Airlines
Mon, Oct 12 - Tue, Oct 20
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
$825Delta
Sat, Oct 17 - Wed, Oct 21

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Delta flights from St. Louis to Saint Lucia

Our best Delta deals on St. Louis to Saint Lucia flight tickets
Delta
Oct 17
STL6:00 amLambert-St Louis
7h 12m
1 stop
UVF2:12 pmCastries Hewanorra
Oct 21
UVF3:32 pmCastries Hewanorra
9h 22m
1 stop
STL11:54 pmLambert-St Louis
$825
Delta
Oct 2
STL6:00 amLambert-St Louis
7h 12m
1 stop
UVF2:12 pmCastries Hewanorra
Oct 12
UVF3:32 pmCastries Hewanorra
9h 22m
1 stop
STL11:54 pmLambert-St Louis
$860
Delta
Sep 7
STL6:00 amLambert-St Louis
7h 14m
1 stop
UVF2:14 pmCastries Hewanorra
Sep 12
UVF3:32 pmCastries Hewanorra
9h 10m
1 stop
STL11:42 pmLambert-St Louis
$1,598

American Airlines flights from St. Louis to Saint Lucia

Our best American Airlines deals on St. Louis to Saint Lucia flight tickets
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
STL3:20 pmLambert-St Louis
21h 22m
2 stops
UVF1:42 pmCastries Hewanorra
Nov 6
UVF4:41 pmCastries Hewanorra
18h 57m
2 stops
STL9:38 amLambert-St Louis
$770
American Airlines
Oct 13
STL5:00 amLambert-St Louis
7h 42m
1 stop
UVF1:42 pmCastries Hewanorra
Oct 20
UVF2:42 pmCastries Hewanorra
28h 07m
1 stop
STL5:49 pmLambert-St Louis
$774

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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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

$553

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

$563

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

$573

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Thu 1/7

5:15 am-4:02 pm

1 stop8h 47m

Castries Hewanorra

Tue 1/12

4:05 pm-11:12 pm

1 stop9h 07m

$765

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Tue 10/13

5:08 pm-3:04 pm

2 stops20h 56m

Castries Hewanorra

Tue 10/20

2:42 pm-8:37 am

2 stops18h 55m

$765
Quickest round-trip

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Tue 1/19

6:00 am-3:05 pm

1 stop7h 05m

Castries Hewanorra

Sun 1/24

4:25 pm-11:39 pm

1 stop9h 14m

$765

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

$765

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Mon 10/12

7:10 pm-3:04 pm

2 stops18h 54m

Castries Hewanorra

Tue 10/20

4:04 pm-9:20 am

2 stops18h 16m

$765

St. LouisCastries

STL Lambert-St Louis - SLU Castries George F. L. Charle

STLSLU

Lambert-St Louis

Mon 10/12

8:55 am-7:00 pm

2 stops33h 05m

Castries George F. L. Charle

Tue 10/20

12:35 pm-8:20 pm

2 stops32h 45m

$776

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sat 10/17

6:00 am-2:12 pm

1 stop7h 12m

Castries Hewanorra

Wed 10/21

3:32 pm-11:54 pm

1 stop9h 22m

$825

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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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

$419

Fastest flight time

7h 00m

Direct flights

None
The best one-way flight to Saint Lucia from St. Louis in the past 72 hours is $419. The best round-trip flight deal from St. Louis to Saint Lucia found on momondo in the last 72 hours is $553.
The fastest flight from St. Louis to Saint Lucia takes 7h 00m
There are no direct flights from St. Louis to Saint Lucia. There are no popular flight routes from St. Louis to Saint Lucia.
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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
DeltaPriceFrom $620Free CancellationRating
7.8
8,545 reviews
Search Delta flights
American AirlinesPriceFrom $654Free CancellationRating
7.1
12,026 reviews
Search American Airlines 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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