$321+ Cheap flights from Missouri to Saint Lucia
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UVF
Mar 11 — Mar 181
1 adult, Economy
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Find cheap flights from Missouri to Saint Lucia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missouri to Saint Lucia
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Cheapest flights from Missouri to Saint LuciaExplore the most affordable flight options available from Missouri to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 9, 2026.
Explore the most affordable flight options available from Missouri to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 9, 2026.
This Air Canada deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:05 pm
STL
- UVF
1 stop22h 20m
Air Canada
Wed 4/14:20 pm
UVF
- STL
1 stop24h 04m
Air Canada
Deal found 2/8![Air Canada logo]()
$514
This FlightHub deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:10 pm
STL
- UVF
2 stops49h 05m
Air Canada
Tue 9/293:15 pm
UVF
- STL
1 stop23h 45m
Air Canada
Deal found 2/6![Air Canada logo]()
$576
This Air Canada deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:05 pm
STL
- UVF
1 stop22h 05m
Air Canada
Fri 4/174:15 pm
UVF
- STL
1 stop24h 09m
Air Canada
Deal found 2/6![Air Canada logo]()
$612
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 am
STL
- UVF
1 stop7h 23m
Delta
Tue 9/293:38 pm
UVF
- STL
1 stop8h 59m
Delta
Deal found 2/8![Delta logo]()
$620
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/128:03 pm
STL
- UVF
2 stops17h 20m
American Airlines
Fri 4/173:28 pm
UVF
- STL
1 stop18h 02m
American Airlines
Deal found 2/6![American Airlines logo]()
$625
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:15 am
STL
- UVF
1 stop7h 33m
American Airlines
Tue 3/313:58 pm
UVF
- STL
2 stops21h 45m
American Airlines
Deal found 2/7![American Airlines logo]()
$634
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:00 am
STL
- UVF
1 stop6h 58m
Delta
Tue 3/313:18 pm
UVF
- STL
1 stop9h 40m
Delta
Deal found 2/8![Delta logo]()
$638
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:33 pm
MCI
- UVF
1 stop18h 42m
American Airlines
Fri 8/283:09 pm
UVF
- MCI
1 stop10h 20m
American Airlines
Deal found 2/6![American Airlines logo]()
$638
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:37 pm
MCI
- UVF
1 stop17h 48m
American Airlines
Fri 10/234:20 pm
UVF
- MCI
1 stop18h 59m
American Airlines
Deal found 2/8![American Airlines logo]()
$644
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:30 am
STL
- UVF
1 stop6h 55m
American Airlines
Mon 11/24:04 pm
UVF
- STL
1 stop18h 23m
American Airlines
Deal found 2/7![American Airlines logo]()
$645
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:45 pm
STL
- UVF
2 stops16h 36m
American Airlines
Sat 11/144:50 pm
UVF
- STL
2 stops18h 26m
American Airlines
Deal found 2/7![American Airlines logo]()
$650
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:11 pm
STL
- UVF
2 stops19h 15m
American Airlines
Fri 5/153:28 pm
UVF
- STL
1 stop18h 02m
American Airlines
Deal found 2/8![American Airlines logo]()
$655
Best flights from Missouri to Saint LuciaDiscover carefully curated flight deals from Missouri to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 9, 2026.
Discover carefully curated flight deals from Missouri to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 9, 2026.
This Air Canada deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:05 pm
STL
- UVF
1 stop22h 05m
Air Canada
Fri 4/174:15 pm
UVF
- STL
1 stop24h 09m
Air Canada
Deal found 2/6![Air Canada logo]()
$612
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:15 am
STL
- UVF
1 stop7h 33m
American Airlines
Tue 3/313:58 pm
UVF
- STL
2 stops20h 01m
American Airlines
Deal found 2/8![American Airlines logo]()
$634
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:00 am
STL
- UVF
1 stop6h 58m
Delta
Tue 3/313:18 pm
UVF
- STL
1 stop9h 40m
Delta
Deal found 2/7![Delta logo]()
$638
This Mytrip deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/84:05 pm
STL
- SLU
2 stops24h 55m
Multiple Airlines
Sun 3/1512:35 pm
SLU
- STL
2 stops27h 54m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$1,265
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:54 am
MCI
- UVF
1 stop7h 04m
Delta
Wed 4/13:18 pm
UVF
- MCI
1 stop9h 54m
Delta
Deal found 2/8![Delta logo]()
$638
This American Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/92:12 pm
STL
- UVF
2 stops22h 23m
American Airlines
Fri 5/153:28 pm
UVF
- STL
1 stop18h 02m
American Airlines
Deal found 2/5![American Airlines logo]()
$655
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:33 pm
MCI
- UVF
2 stops18h 15m
American Airlines
Wed 4/13:58 pm
UVF
- MCI
2 stops19h 14m
American Airlines
Deal found 2/8![American Airlines logo]()
$668
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/164:22 pm
MCI
- UVF
2 stops21h 36m
American Airlines
Mon 3/233:58 pm
UVF
- MCI
2 stops17h 44m
American Airlines
Deal found 2/6![American Airlines logo]()
$668
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:52 pm
MCI
- UVF
1 stop18h 43m
American Airlines
Mon 4/133:28 pm
UVF
- MCI
2 stops19h 47m
American Airlines
Deal found 2/6![American Airlines logo]()
$756
This Gotogate deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/132:20 pm
STL
- SLU
2 stops23h 15m
Multiple Airlines
Sat 6/205:50 pm
SLU
- STL
2 stops19h 31m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$2,428
This Gotogate deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/112:40 pm
STL
- SLU
2 stops22h 55m
Multiple Airlines
Sun 7/195:00 am
SLU
- STL
2 stops16h 02m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$2,719
This Mytrip deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1912:10 pm
STL
- SLU
3 stops26h 25m
Multiple Airlines
Sun 7/265:00 am
SLU
- STL
2 stops16h 02m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$3,304
This Expedia deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:05 pm
STL
- SLU
2 stops29h 05m
Multiple Airlines
Sun 4/266:00 pm
SLU
- STL
2 stops46h 24m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$3,682
This Travelocity deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:30 am
STL
- SLU
2 stops37h 40m
Multiple Airlines
Fri 5/296:00 pm
SLU
- STL
2 stops43h 06m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$3,805
Last-minute flights from Missouri to Saint LuciaDiscover last-minute flight deals from Missouri to Saint Lucia. Data last updated February 9, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Saint Lucia. Data last updated February 9, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/224:05 pm
STL
- UVF
1 stop22h 20m
Air Canada
Wed 2/255:15 pm
UVF
- STL
1 stop24h 14m
Air Canada
Deal found 2/8![Air Canada logo]()
$772
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:20 pm
STL
- UVF
1 stop18h 28m
American Airlines
Mon 3/93:18 pm
UVF
- STL
1 stop19h 22m
American Airlines
Deal found 2/6![American Airlines logo]()
$714
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:57 pm
STL
- UVF
1 stop18h 21m
American Airlines
Mon 3/93:18 pm
UVF
- STL
1 stop19h 22m
American Airlines
Deal found 2/7![American Airlines logo]()
$739
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:36 pm
STL
- UVF
2 stops18h 22m
American Airlines
Thu 3/122:48 pm
UVF
- STL
2 stops18h 47m
American Airlines
Deal found 2/6![American Airlines logo]()
$744
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:33 pm
MCI
- UVF
2 stops19h 25m
American Airlines
Mon 3/232:48 pm
UVF
- MCI
2 stops20h 54m
American Airlines
Deal found 2/7![American Airlines logo]()
$668
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:50 pm
STL
- UVF
2 stops18h 28m
American Airlines
Tue 3/242:48 pm
UVF
- STL
1 stop10h 10m
American Airlines
Deal found 2/8![American Airlines logo]()
$753
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:15 am
STL
- UVF
1 stop7h 33m
American Airlines
Tue 3/313:58 pm
UVF
- STL
2 stops21h 45m
American Airlines
Deal found 2/7![American Airlines logo]()
$634
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:00 am
STL
- UVF
1 stop6h 58m
Delta
Tue 3/313:18 pm
UVF
- STL
1 stop9h 40m
Delta
Deal found 2/8![Delta logo]()
$638
This Air Canada deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:05 pm
STL
- UVF
1 stop22h 20m
Air Canada
Wed 4/14:20 pm
UVF
- STL
1 stop24h 04m
Air Canada
Deal found 2/8![Air Canada logo]()
$514
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:54 am
MCI
- UVF
1 stop7h 04m
Delta
Wed 4/13:18 pm
UVF
- MCI
1 stop9h 54m
Delta
Deal found 2/8![Delta logo]()
$638
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:20 pm
STL
- UVF
1 stop18h 28m
American Airlines
Wed 4/12:48 pm
UVF
- STL
2 stops18h 47m
American Airlines
Deal found 2/8![American Airlines logo]()
$659
This American Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:00 am
MCI
- UVF
1 stop8h 58m
American Airlines
Fri 4/33:58 pm
UVF
- MCI
2 stops22h 10m
American Airlines
Deal found 2/9![American Airlines logo]()
$757
One-way flights from Missouri to Saint LuciaSearch for one-way flight options from Missouri to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated February 9, 2026.
Search for one-way flight options from Missouri to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated February 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:00 am
MCI
- UVF
2 stops29h 40m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$321
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:51 pm
MCI
- UVF
1 stop19h 18m
American Airlines
Deal found 2/8![American Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:40 am
MCI
- UVF
1 stop7h 22m
Delta
Deal found 2/8![Delta logo]()
$354
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:11 pm
MCI
- UVF
2 stops22h 34m
American Airlines
Deal found 2/8![American Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:32 pm
MCI
- UVF
2 stops21h 13m
American Airlines
Deal found 2/8![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/35:00 am
MCI
- UVF
1 stop7h 45m
American Airlines
Deal found 2/8![American Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:28 pm
MCI
- UVF
1 stop18h 58m
American Airlines
Deal found 2/8![American Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:15 pm
MCI
- UVF
3 stops46h 29m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:40 am
MCI
- UVF
1 stop7h 22m
Delta
Deal found 2/8![Delta logo]()
$472
Find flight deals from Missouri to Saint Lucia
Keep the following information in mind while searching for Missouri to Saint Lucia flight deals. Data was last updated February 9, 2026.
Round-trip from | $514 (Air Canada) |
|---|---|
One-way from | $321 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Saint Lucia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 9, 2026.
Use the filters below to find and compare flights from Missouri to Saint Lucia that are best for you.
Fly from
Missouri
Fly to
Saint Lucia
Route
Depart
Return
Price
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Sun 4/12
4:05 pm-3:10 pm
1 stop22h 05m
Castries Hewanorra
Fri 4/17
4:15 pm-3:24 pm
1 stop24h 09m
$612
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Tue 3/24
5:15 am-1:48 pm
1 stop7h 33m
Castries Hewanorra
Tue 3/31
3:58 pm-10:59 am
2 stops20h 01m
$634
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Tue 3/24
6:00 am-1:58 pm
1 stop6h 58m
Castries Hewanorra
Tue 3/31
3:18 pm-11:58 pm
1 stop9h 40m
$638
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Wed 3/25
5:54 am-1:58 pm
1 stop7h 04m
Castries Hewanorra
Wed 4/1
3:18 pm-12:12 am
1 stop9h 54m
$638
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Sat 5/9
2:12 pm-1:35 pm
2 stops22h 23m
Castries Hewanorra
Fri 5/15
3:28 pm-8:30 am
1 stop18h 02m
$655
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Wed 3/25
6:33 pm-1:48 pm
2 stops18h 15m
Castries Hewanorra
Wed 4/1
3:58 pm-10:12 am
2 stops19h 14m
$668
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Mon 3/16
4:22 pm-2:58 pm
2 stops21h 36m
Castries Hewanorra
Mon 3/23
3:58 pm-8:42 am
2 stops17h 44m
$668
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Thu 4/9
5:52 pm-1:35 pm
1 stop18h 43m
Castries Hewanorra
Mon 4/13
3:28 pm-10:15 am
2 stops19h 47m
$756
St. LouisCastries
STL - SLU
STLSLU
Lambert-St Louis
Sun 3/8
4:05 pm-6:00 pm
2 stops24h 55m
Castries George F. L. Charle
Sun 3/15
12:35 pm-3:29 pm
2 stops27h 54m
$1,265
St. LouisCastries
STL - SLU
STLSLU
Lambert-St Louis
Sat 6/13
2:20 pm-2:35 pm
2 stops23h 15m
Castries George F. L. Charle
Sat 6/20
5:50 pm-12:21 pm
2 stops19h 31m
$2,428
Showing 1-10 of 23 results
Best time to book a flight from Missouri to Saint Lucia
Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Missouri with our price prediction graph.
STL-UVF
MCI-UVF
STL-SLU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Missouri to Saint Lucia
USMO-LC0
STL-UVF
MCI-UVF
STL-SLU
What is the cheapest month to book a flight from Missouri to Saint Lucia?
Currently, January is the cheapest month in which you can book a flight from Missouri to Saint Lucia (average of $562). Flying from Missouri to Saint Lucia in July is currently the most expensive (average of $671). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Missouri to Saint Lucia
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Complete your trip
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Search flights from Missouri to Saint Lucia by cabin class
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Missouri and Saint Lucia flights
Browse other Missouri and Saint Lucia flight options. Last updated on February 9, 2026.
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Missouri to Saint Lucia flights
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Top 2 airlines flying from Missouri to Saint Lucia
Discover the top 2 airlines that operate flights from Missouri to Saint Lucia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$532 | Average$793 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$575 | Average$820 | FlexibilityNo cancel fee | On-timeN/A |