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Cheap flights from St. Louis to Saint Lucia from $343

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 - 4:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
22h 35m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 pm - 3:26 pmUVF  Castries Hewanorra-STL Lambert-St Louis
23h 51m1 stop Toronto Pearson Intl
$586Air Canada
Wed, Nov 25 - Mon, Nov 30
Air Canada Logo
4:05 pm - 4:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
22h 35m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 pm - 3:26 pmUVF  Castries Hewanorra-STL Lambert-St Louis
23h 51m1 stop Toronto Pearson Intl
$624Air Canada
Thu, Nov 5 - Thu, Nov 12
American Airlines Logo
5:00 am - 2:20 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
8h 20m1 stop Charlotte Douglas
American Airlines Logo
3:20 pm - 11:59 pmUVF  Castries Hewanorra-STL Lambert-St Louis
9h 39m1 stop Charlotte Douglas
$650American Airlines
Sun, Oct 25 - Thu, Oct 29
American Airlines Logo
5:00 am - 2:20 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
8h 20m1 stop Charlotte Douglas
American Airlines Logo
2:42 pm - 8:46 amUVF  Castries Hewanorra-STL Lambert-St Louis
19h 04m2 stops Miami New York LaGuardia
$655American Airlines
Sun, Oct 25 - Thu, Oct 29
American Airlines Logo
5:40 pm - 3:04 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
20h 24m2 stops Philadelphia Miami
American Airlines Logo
4:04 pm - 10:18 amUVF  Castries Hewanorra-STL Lambert-St Louis
19h 14m2 stops Miami Washington, D.C. Reagan-National
$655American Airlines
Sun, Oct 25 - Thu, Oct 29
Multiple Airlines Logo
6:44 pm - 4:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
44h 56m3 stops Atlanta Hartsfield-Jackson Philadelphia Toronto Pearson Intl
Multiple Airlines Logo
5:35 pm - 3:26 pmUVF  Castries Hewanorra-STL Lambert-St Louis
23h 51m1 stop Toronto Pearson Intl
$658Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
Multiple Airlines Logo
12:14 pm - 4:40 pmSTL  Lambert-St Louis-UVF Castries Hewanorra
26h 26m3 stops Dallas/Fort Worth New York LaGuardia Toronto Pearson Intl
Multiple Airlines Logo
5:35 pm - 3:26 pmUVF  Castries Hewanorra-STL Lambert-St Louis
23h 51m1 stop Toronto Pearson Intl
$710Multiple Airlines
Thu, Nov 5 - Thu, Nov 12
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
$735Delta
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
$872Delta
Thu, Oct 22 - Mon, Oct 26
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
$918Delta
Thu, Oct 22 - Mon, Oct 26

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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
Nov 25
STL4:05 pmLambert-St Louis
22h 35m
1 stop
UVF4:40 pmCastries Hewanorra
Nov 30
UVF5:35 pmCastries Hewanorra
23h 51m
1 stop
STL3:26 pmLambert-St Louis
$586
Air Canada
Nov 5
STL4:05 pmLambert-St Louis
22h 35m
1 stop
UVF4:40 pmCastries Hewanorra
Nov 12
UVF5:35 pmCastries Hewanorra
23h 51m
1 stop
STL3:26 pmLambert-St Louis
$624

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 25
STL5:00 amLambert-St Louis
8h 20m
1 stop
UVF2:20 pmCastries Hewanorra
Oct 29
UVF3:20 pmCastries Hewanorra
9h 39m
1 stop
STL11:59 pmLambert-St Louis
$650
American Airlines
Oct 25
STL5:00 amLambert-St Louis
8h 20m
1 stop
UVF2:20 pmCastries Hewanorra
Oct 29
UVF2:42 pmCastries Hewanorra
19h 04m
2 stops
STL8:46 amLambert-St Louis
$655
American Airlines
Jan 20
STL5:00 amLambert-St Louis
7h 46m
1 stop
UVF2:46 pmCastries Hewanorra
Jan 27
UVF3:46 pmCastries Hewanorra
8h 56m
1 stop
STL10:42 pmLambert-St Louis
$695

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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Cheapest round-trip

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Wed 11/25

4:05 pm-4:40 pm

1 stop22h 35m

Castries Hewanorra

Mon 11/30

5:35 pm-3:26 pm

1 stop23h 51m

$586

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Thu 11/5

4:05 pm-4:40 pm

1 stop22h 35m

Castries Hewanorra

Thu 11/12

5:35 pm-3:26 pm

1 stop23h 51m

$624

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sun 10/25

5:00 am-2:20 pm

1 stop8h 20m

Castries Hewanorra

Thu 10/29

3:20 pm-11:59 pm

1 stop9h 39m

$650

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sun 10/25

5:00 am-2:20 pm

1 stop8h 20m

Castries Hewanorra

Thu 10/29

2:42 pm-8:46 am

2 stops19h 04m

$655

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Sun 10/25

5:40 pm-3:04 pm

2 stops20h 24m

Castries Hewanorra

Thu 10/29

4:04 pm-10:18 am

2 stops19h 14m

$655

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Fri 10/30

6:44 pm-4:40 pm

3 stops44h 56m

Castries Hewanorra

Fri 11/6

5:35 pm-3:26 pm

1 stop23h 51m

$658

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Thu 11/5

12:14 pm-4:40 pm

3 stops26h 26m

Castries Hewanorra

Thu 11/12

5:35 pm-3:26 pm

1 stop23h 51m

$710
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

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Thu 10/22

6:00 am-2:12 pm

1 stop7h 12m

Castries Hewanorra

Mon 10/26

3:32 pm-11:54 pm

1 stop9h 22m

$872

St. LouisCastries

STL Lambert-St Louis - UVF Castries Hewanorra

STLUVF

Lambert-St Louis

Thu 10/22

6:00 am-2:12 pm

1 stop7h 12m

Castries Hewanorra

Mon 10/26

3:32 pm-11:54 pm

1 stop9h 22m

$918

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 $780.

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

$343

Fastest flight time

7h 04m

Direct flights

None
The best one-way flight to Saint Lucia from St. Louis in the past 72 hours is $343. The best round-trip flight deal from St. Louis to Saint Lucia found on momondo in the last 72 hours is $586.
The fastest flight from St. Louis to Saint Lucia takes 7h 04m
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
8,608 reviews
Search Delta flights
American AirlinesPriceFrom $713Free CancellationRating
7.0
12,098 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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