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Cheap flights from St. Louis to Saint Lucia from $415

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
8:55 am - 3:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
29h 45m1 stop Toronto Pearson Intl
Air Canada Logo
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
Air Canada Logo
12:10 pm - 3:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
26h 30m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
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
Air Canada Logo
2:40 pm - 3:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
24h 00m1 stop Toronto Pearson Intl
Air Canada Logo
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
Air Canada Logo
12:10 pm - 3:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
26h 30m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
4:40 pm - 3:23 pmUVF  Castries Hewanorra-STL Lambert-St Louis
23h 43m1 stop Toronto Pearson Intl
$468Air Canada
Sat, Oct 24 - Fri, Oct 30
American Airlines Logo
6:16 pm - 2:50 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
18h 34m1 stop Miami
American Airlines Logo
4:18 pm - 8:35 amUVF  Castries Hewanorra-STL Lambert-St Louis
18h 17m1 stop Charlotte Douglas
$630American Airlines
Mon, Mar 1 - Fri, Mar 5
American Airlines Logo
7:01 pm - 4:02 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
19h 01m2 stops Dallas/Fort Worth Miami
American Airlines Logo
4:58 pm - 9:19 amUVF  Castries Hewanorra-STL Lambert-St Louis
18h 21m2 stops Miami Dallas/Fort Worth
$635American Airlines
Mon, Mar 1 - Fri, Mar 5
American Airlines Logo
6:16 pm - 2:50 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
18h 34m1 stop Miami
American Airlines Logo
3:51 pm - 9:19 amUVF  Castries Hewanorra-STL Lambert-St Louis
19h 28m2 stops Miami Dallas/Fort Worth
$635American Airlines
Mon, Mar 1 - Fri, Mar 5
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 - 8:12 amUVF  Castries Hewanorra-STL Lambert-St Louis
17h 47m1 stop Atlanta Hartsfield-Jackson
$708Delta
Tue, Jan 12 - Tue, Jan 19
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
$708Delta
Mon, Jan 11 - Thu, Jan 21
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
$708Delta
Mon, Jan 11 - Wed, Jan 20

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American Airlines flights from St. Louis to Saint Lucia

Our best American Airlines deals on St. Louis to Saint Lucia flight tickets
American Airlines
Nov 4
STL5:00 amLambert-St Louis
8h 41m
1 stop
UVF3:41 pmCastries Hewanorra
Nov 10
UVF2:32 pmCastries Hewanorra
9h 15m
1 stop
STL9:47 pmLambert-St Louis
$675
American Airlines
Oct 24
STL7:10 pmLambert-St Louis
18h 10m
2 stops
UVF2:20 pmCastries Hewanorra
Oct 30
UVF4:04 pmCastries Hewanorra
17h 33m
2 stops
STL8:37 amLambert-St Louis
$680
American Airlines
Oct 28
STL5:00 amLambert-St Louis
7h 42m
1 stop
UVF1:42 pmCastries Hewanorra
Nov 4
UVF2:32 pmCastries Hewanorra
9h 15m
1 stop
STL9:47 pmLambert-St Louis
$695

Delta flights from St. Louis to Saint Lucia

Our best Delta deals on St. Louis to Saint Lucia flight tickets
Delta
Oct 26
STL6:00 amLambert-St Louis
7h 12m
1 stop
UVF2:12 pmCastries Hewanorra
Nov 2
UVF4:32 pmCastries Hewanorra
9h 22m
1 stop
STL11:54 pmLambert-St Louis
$725
Delta
Jan 7
STL6:00 amLambert-St Louis
7h 05m
1 stop
UVF3:05 pmCastries Hewanorra
Jan 12
UVF4:25 pmCastries Hewanorra
9h 14m
1 stop
STL11:39 pmLambert-St Louis
$735
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
$901

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

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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

$468

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Mon 3/1

6:16 pm-2:50 pm

1 stop18h 34m

Castries Hewanorra

Fri 3/5

4:18 pm-8:35 am

1 stop18h 17m

$630

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Mon 3/1

7:01 pm-4:02 pm

2 stops19h 01m

Castries Hewanorra

Fri 3/5

4:58 pm-9:19 am

2 stops18h 21m

$635

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Mon 3/1

6:16 pm-2:50 pm

1 stop18h 34m

Castries Hewanorra

Fri 3/5

3:51 pm-9:19 am

2 stops19h 28m

$635

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Tue 1/12

6:00 am-3:05 pm

1 stop7h 05m

Castries Hewanorra

Tue 1/19

4:25 pm-8:12 am

1 stop17h 47m

$708
Quickest round-trip

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Mon 1/11

6:00 am-3:05 pm

1 stop7h 05m

Castries Hewanorra

Thu 1/21

4:25 pm-11:39 pm

1 stop9h 14m

$708

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Mon 1/11

6:00 am-3:05 pm

1 stop7h 05m

Castries Hewanorra

Wed 1/20

4:25 pm-11:39 pm

1 stop9h 14m

$708

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

$415

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 $415
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
DeltaPriceFrom $620Free CancellationRating
7.8
8,564 reviews
Search Delta flights
American AirlinesPriceFrom $654Free CancellationRating
7.1
12,053 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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