$359+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UVF
Apr 10 — Apr 171
Round-trip
1 adult, Economy
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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 March 11, 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 March 11, 2026.
This FlightHub deal was found by Cheapflights users on 3/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/187:05 am
STL
- UVF
1 stop30h 15m
Air Canada
Tue 6/233:05 pm
UVF
- STL
1 stop22h 16m
Air Canada
Deal found 3/7![Air Canada logo]()
$392
This Mytrip deal was found by Cheapflights users on 3/7. 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.
Thu 6/189:50 am
STL
- UVF
3 stops27h 30m
Multiple Airlines
Tue 6/233:05 pm
UVF
- STL
1 stop22h 16m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$580
This American Airlines deal was found by Cheapflights users on 3/7. 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 8/224:32 pm
STL
- UVF
2 stops20h 37m
American Airlines
Tue 8/253:15 pm
UVF
- STL
1 stop9h 40m
American Airlines
Deal found 3/7![American Airlines logo]()
$675
This American Airlines deal was found by Cheapflights users on 3/9. 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.
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 3/9![American Airlines logo]()
$688
This American Airlines deal was found by Cheapflights users on 3/11. 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 7/215:17 am
STL
- UVF
1 stop7h 43m
American Airlines
Tue 7/281:08 pm
UVF
- STL
2 stops20h 23m
American Airlines
Deal found 3/11![American Airlines logo]()
$695
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 12/25:05 am
MCI
- UVF
1 stop8h 48m
American Airlines
Wed 12/94:05 pm
UVF
- MCI
2 stops18h 33m
American Airlines
Deal found 3/9![American Airlines logo]()
$698
This American Airlines deal was found by Cheapflights users on 3/7. 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 stops19h 05m
American Airlines
Sat 11/144:50 pm
UVF
- STL
2 stops19h 47m
American Airlines
Deal found 3/7![American Airlines logo]()
$700
This American Airlines deal was found by Cheapflights users on 3/8. 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 11/45:21 am
STL
- UVF
1 stop8h 29m
American Airlines
Mon 11/94:04 pm
UVF
- STL
2 stops20h 33m
American Airlines
Deal found 3/8![American Airlines logo]()
$705
This Air Canada deal was found by Cheapflights users on 3/7. 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 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 05m
Air Canada
Deal found 3/7![Air Canada logo]()
$708
This American Airlines deal was found by Cheapflights users on 3/8. 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 7/45:48 pm
STL
- UVF
2 stops19h 26m
American Airlines
Sat 7/112:22 pm
UVF
- STL
1 stop21h 16m
American Airlines
Deal found 3/8![American Airlines logo]()
$711
This American Airlines deal was found by Cheapflights users on 3/7. 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 4/225:21 pm
STL
- UVF
2 stops20h 05m
American Airlines
Wed 4/292:45 pm
UVF
- STL
2 stops18h 39m
American Airlines
Deal found 3/7![American Airlines logo]()
$714
This American Airlines deal was found by Cheapflights users on 3/8. 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 10/55:11 pm
MCI
- UVF
2 stops19h 14m
American Airlines
Mon 10/124:20 pm
UVF
- MCI
1 stop18h 59m
American Airlines
Deal found 3/8![American Airlines logo]()
$718
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 March 11, 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 March 11, 2026.
This American Airlines deal was found by Cheapflights users on 3/7. 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 8/224:32 pm
STL
- UVF
2 stops20h 37m
American Airlines
Tue 8/253:15 pm
UVF
- STL
1 stop9h 40m
American Airlines
Deal found 3/7![American Airlines logo]()
$675
This Delta deal was found by Cheapflights users on 3/7. 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.
Sat 8/226:00 am
STL
- UVF
1 stop7h 08m
Delta
Tue 8/253:28 pm
UVF
- STL
1 stop9h 09m
Delta
Deal found 3/7![Delta logo]()
$695
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/102:20 pm
STL
- SLU
2 stops27h 40m
Multiple Airlines
Wed 6/1712:35 pm
SLU
- STL
2 stops24h 46m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,167
This American Airlines deal was found by Cheapflights users on 3/8. 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 5/96:53 pm
STL
- UVF
1 stop18h 33m
American Airlines
Fri 5/153:28 pm
UVF
- STL
2 stops21h 08m
American Airlines
Deal found 3/8![American Airlines logo]()
$724
This American Airlines deal was found by Cheapflights users on 3/8. 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 7/276:12 pm
STL
- UVF
2 stops18h 48m
American Airlines
Mon 8/33:14 pm
UVF
- STL
2 stops20h 24m
American Airlines
Deal found 3/8![American Airlines logo]()
$742
This Delta deal was found by Cheapflights users on 3/10. 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.
Thu 4/25:54 am
MCI
- UVF
1 stop7h 04m
Delta
Mon 4/63:18 pm
UVF
- MCI
1 stop9h 54m
Delta
Deal found 3/10![Delta logo]()
$868
This American Airlines deal was found by Cheapflights users on 3/7. 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 7/46:12 pm
STL
- UVF
1 stop18h 58m
American Airlines
Sat 7/112:58 pm
UVF
- STL
2 stops20h 03m
American Airlines
Deal found 3/7![American Airlines logo]()
$751
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/105:54 am
MCI
- UVF
1 stop7h 04m
Delta
Mon 4/133:22 pm
UVF
- MCI
1 stop9h 28m
Delta
Deal found 3/9![Delta logo]()
$921
This Delta deal was found by Cheapflights users on 3/7. 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 3/315:54 am
MCI
- UVF
1 stop7h 04m
Delta
Fri 4/33:18 pm
UVF
- MCI
1 stop9h 54m
Delta
Deal found 3/7![Delta logo]()
$990
This American Airlines deal was found by Cheapflights users on 3/8. 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 6/225:01 pm
MCI
- UVF
2 stops18h 01m
American Airlines
Sun 6/282:48 pm
UVF
- MCI
1 stop10h 03m
American Airlines
Deal found 3/8![American Airlines logo]()
$1,022
This Delta deal was found by Cheapflights users on 3/7. 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.
Sun 4/265:40 am
MCI
- UVF
1 stop7h 22m
Delta
Sat 5/23:22 pm
UVF
- MCI
1 stop9h 28m
Delta
Deal found 3/7![Delta logo]()
$1,094
This American Airlines deal was found by Cheapflights users on 3/10. 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 7/155:20 pm
MCI
- UVF
2 stops17h 48m
American Airlines
Mon 7/203:03 pm
UVF
- MCI
1 stop9h 43m
American Airlines
Deal found 3/10![American Airlines logo]()
$1,114
This Mytrip deal was found by Cheapflights users on 3/8. 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.
Sat 4/44:05 pm
STL
- SLU
2 stops21h 30m
Multiple Airlines
Thu 4/99:50 am
SLU
- STL
3 stops30h 35m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$1,635
This Delta deal was found by Cheapflights users on 3/11. 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.
Sat 5/165:39 am
MCI
- UVF
1 stop7h 26m
Delta
Thu 5/213:25 pm
UVF
- MCI
1 stop9h 24m
Delta
Deal found 3/11![Delta logo]()
$1,128
This Delta deal was found by Cheapflights users on 3/7. 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.
Thu 4/95:54 am
MCI
- UVF
1 stop7h 04m
Delta
Mon 4/133:22 pm
UVF
- MCI
1 stop9h 28m
Delta
Deal found 3/7![Delta logo]()
$1,140
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Sat 4/114:05 pm
STL
- SLU
3 stops19h 00m
Multiple Airlines
Sat 4/185:50 pm
SLU
- STL
2 stops22h 35m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$2,071
This Travelocity deal was found by Cheapflights users on 3/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/278:55 am
STL
- SLU
2 stops29h 40m
Multiple Airlines
Mon 8/37:10 pm
SLU
- STL
2 stops43h 52m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$3,617
This Expedia deal was found by Cheapflights users on 3/11. 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.
Thu 5/217:05 am
STL
- SLU
2 stops30h 30m
Multiple Airlines
Mon 5/257:10 pm
SLU
- STL
2 stops41h 56m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$3,772
Last-minute flights from Missouri to Saint LuciaDiscover last-minute flight deals from Missouri to Saint Lucia. Data last updated March 11, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Saint Lucia. Data last updated March 11, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 3/7. 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 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 05m
Air Canada
Deal found 3/7![Air Canada logo]()
$708
This American Airlines deal was found by Cheapflights users on 3/7. 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 3/255:15 am
STL
- UVF
1 stop8h 43m
American Airlines
Wed 4/12:48 pm
UVF
- STL
2 stops18h 47m
American Airlines
Deal found 3/7![American Airlines logo]()
$850
This Delta deal was found by Cheapflights users on 3/7. 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.
Mon 3/306:00 am
STL
- UVF
1 stop6h 58m
Delta
Wed 4/13:18 pm
UVF
- STL
1 stop9h 40m
Delta
Deal found 3/7![Delta logo]()
$790
This American Airlines deal was found by Cheapflights users on 3/7. 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 3/306:50 pm
STL
- UVF
2 stops19h 08m
American Airlines
Wed 4/13:58 pm
UVF
- STL
2 stops20h 01m
American Airlines
Deal found 3/7![American Airlines logo]()
$795
This American Airlines deal was found by Cheapflights users on 3/9. 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 3/9![American Airlines logo]()
$841
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Thu 4/212:24 pm
MCI
- UVF
2 stops25h 46m
Multiple Airlines
Mon 4/64:15 pm
UVF
- MCI
3 stops32h 38m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$815
This Delta deal was found by Cheapflights users on 3/10. 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.
Thu 4/25:54 am
MCI
- UVF
1 stop7h 04m
Delta
Mon 4/63:18 pm
UVF
- MCI
1 stop9h 54m
Delta
Deal found 3/10![Delta logo]()
$868
This American Airlines deal was found by Cheapflights users on 3/7. 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 4/96:28 pm
MCI
- UVF
1 stop18h 58m
American Airlines
Mon 4/132:45 pm
UVF
- MCI
2 stops23h 15m
American Airlines
Deal found 3/7![American Airlines logo]()
$854
This American Airlines deal was found by Cheapflights users on 3/7. 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 4/225:21 pm
STL
- UVF
2 stops20h 05m
American Airlines
Wed 4/292:45 pm
UVF
- STL
2 stops18h 39m
American Airlines
Deal found 3/7![American Airlines logo]()
$714
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 4/236:55 pm
STL
- UVF
1 stop18h 31m
American Airlines
Thu 4/303:28 pm
UVF
- STL
1 stop18h 02m
American Airlines
Deal found 3/9![American Airlines logo]()
$734
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 4/236:28 pm
MCI
- UVF
1 stop18h 58m
American Airlines
Thu 4/303:28 pm
UVF
- MCI
1 stop18h 33m
American Airlines
Deal found 3/9![American Airlines logo]()
$743
This American Airlines deal was found by Cheapflights users on 3/7. 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 4/238:03 pm
STL
- UVF
2 stops17h 23m
American Airlines
Mon 4/273:28 pm
UVF
- STL
2 stops21h 09m
American Airlines
Deal found 3/7![American Airlines logo]()
$783
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 March 11, 2026.
Search for one-way flight options from Missouri to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
This American Airlines deal was found by Cheapflights users on 3/7. 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 5/72:33 pm
MCI
- UVF
2 stops22h 12m
American Airlines
Deal found 3/7![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 3/7. 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.
Fri 6/124:07 pm
MCI
- UVF
2 stops18h 55m
American Airlines
Deal found 3/7![American Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 3/11. 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 7/1511:00 am
STL
- UVF
1 stop24h 08m
American Airlines
Deal found 3/11![American Airlines logo]()
$405
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/127:55 pm
MCI
- UVF
1 stop18h 36m
United Airlines
Deal found 3/7![United Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 3/7. 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 6/126:01 pm
MCI
- UVF
3 stops42h 39m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:17 pm
MCI
- UVF
3 stops41h 53m
United Airlines
Deal found 3/7![United Airlines logo]()
$2,090
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 March 11, 2026.
Round-trip from | $392 (FlightHub) |
|---|---|
One-way from | $359 (American Airlines) |
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 March 11, 2026.
Use the filters below to find and compare flights from Missouri to Saint Lucia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Sat 8/22
4:32 pm-2:09 pm
2 stops20h 37m
Castries Hewanorra
Tue 8/25
3:15 pm-11:55 pm
1 stop9h 40m
$675
Quickest round-trip
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Sat 8/22
6:00 am-2:08 pm
1 stop7h 08m
Castries Hewanorra
Tue 8/25
3:28 pm-11:37 pm
1 stop9h 09m
$695
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Sat 5/9
6:53 pm-2:26 pm
1 stop18h 33m
Castries Hewanorra
Fri 5/15
3:28 pm-11:36 am
2 stops21h 08m
$724
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Mon 7/27
6:12 pm-2:00 pm
2 stops18h 48m
Castries Hewanorra
Mon 8/3
3:14 pm-10:38 am
2 stops20h 24m
$742
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Sat 7/4
6:12 pm-2:10 pm
1 stop18h 58m
Castries Hewanorra
Sat 7/11
2:58 pm-10:01 am
2 stops20h 03m
$751
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Thu 4/2
5:54 am-1:58 pm
1 stop7h 04m
Castries Hewanorra
Mon 4/6
3:18 pm-12:12 am
1 stop9h 54m
$868
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Fri 4/10
5:54 am-1:58 pm
1 stop7h 04m
Castries Hewanorra
Mon 4/13
3:22 pm-11:50 pm
1 stop9h 28m
$921
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Tue 3/31
5:54 am-1:58 pm
1 stop7h 04m
Castries Hewanorra
Fri 4/3
3:18 pm-12:12 am
1 stop9h 54m
$990
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Mon 6/22
5:01 pm-12:02 pm
2 stops18h 01m
Castries Hewanorra
Sun 6/28
2:48 pm-11:51 pm
1 stop10h 03m
$1,022
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Sun 4/26
5:40 am-2:02 pm
1 stop7h 22m
Castries Hewanorra
Sat 5/2
3:22 pm-11:50 pm
1 stop9h 28m
$1,094
Showing 1-10 of 24 resultsSorted by cheapest first
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
Complete your trip to Saint Lucia by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Missouri to Saint Lucia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Saint Lucia flights
Browse other Missouri and Saint Lucia flight options. Last updated on March 11, 2026.
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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 March 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$575 | Average$807 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$575 | Average$826 | FlexibilityNo cancel fee | On-timeN/A |