$369+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — UVF
Jul 10 — Jul 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
Best
Last-minute
One-way
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 June 10, 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 June 10, 2026.
This Air Canada deal was found by Cheapflights users on 6/7. 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.
Mon 8/102:40 pm
STL
- UVF
1 stop22h 40m
Air Canada
Tue 8/183:15 pm
UVF
- STL
1 stop23h 47m
Air Canada
Deal found 6/7![Air Canada logo]()
$560
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:15 pm
STL
- UVF
1 stop22h 10m
Air Canada
Wed 11/185:25 pm
UVF
- STL
1 stop24h 05m
Air Canada
Deal found 6/8![Air Canada logo]()
$564
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/132:40 pm
STL
- UVF
1 stop22h 30m
Air Canada
Tue 7/213:05 pm
UVF
- STL
1 stop23h 57m
Air Canada
Deal found 6/8![Air Canada logo]()
$590
This Travelocity deal was found by Cheapflights users on 6/8. 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 8/248:55 am
STL
- UVF
1 stop28h 25m
Air Canada
Fri 8/283:15 pm
UVF
- STL
1 stop30h 07m
Air Canada
Deal found 6/8![Air Canada logo]()
$598
This Orbitz deal was found by Cheapflights users on 6/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:15 pm
STL
- UVF
1 stop22h 10m
Air Canada
Fri 11/65:25 pm
UVF
- STL
1 stop24h 05m
Air Canada
Deal found 6/9![Air Canada logo]()
$627
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Mon 7/205:18 pm
MCI
- UVF
2 stops20h 02m
American Airlines
Thu 7/302:50 pm
UVF
- MCI
2 stops18h 42m
American Airlines
Deal found 6/9![American Airlines logo]()
$703
This American Airlines deal was found by Cheapflights users on 6/9. 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 8/224:45 pm
MCI
- UVF
1 stop20h 04m
American Airlines
Fri 8/282:49 pm
UVF
- MCI
1 stop10h 10m
American Airlines
Deal found 6/9![American Airlines logo]()
$712
This American Airlines deal was found by Cheapflights users on 6/6. 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.
Fri 7/105:21 pm
MCI
- UVF
1 stop18h 55m
American Airlines
Fri 7/173:20 pm
UVF
- MCI
1 stop8h 38m
American Airlines
Deal found 6/6![American Airlines logo]()
$723
This American Airlines deal was found by Cheapflights users on 6/8. 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 12/22:54 pm
MCI
- UVF
2 stops20h 25m
American Airlines
Tue 12/84:53 pm
UVF
- MCI
2 stops18h 48m
American Airlines
Deal found 6/8![American Airlines logo]()
$733
This American Airlines deal was found by Cheapflights users on 6/8. 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 9/191:03 pm
MCI
- UVF
2 stops23h 51m
American Airlines
Fri 9/253:02 pm
UVF
- MCI
2 stops21h 46m
American Airlines
Deal found 6/8![American Airlines logo]()
$743
This American Airlines deal was found by Cheapflights users on 6/7. 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 10/235:11 am
MCI
- UVF
1 stop9h 19m
American Airlines
Tue 10/274:00 pm
UVF
- MCI
2 stops20h 28m
American Airlines
Deal found 6/7![American Airlines logo]()
$768
This American Airlines deal was found by Cheapflights users on 6/7. 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 9/261:03 pm
MCI
- UVF
2 stops23h 51m
American Airlines
Fri 10/23:02 pm
UVF
- MCI
1 stop8h 57m
American Airlines
Deal found 6/7![American Airlines logo]()
$770
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 June 10, 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 June 10, 2026.
This Air Canada deal was found by Cheapflights users on 6/7. 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.
Mon 8/102:40 pm
STL
- UVF
1 stop22h 40m
Air Canada
Tue 8/183:15 pm
UVF
- STL
1 stop23h 47m
Air Canada
Deal found 6/7![Air Canada logo]()
$560
This American Airlines deal was found by Cheapflights users on 6/7. 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 7/205:53 pm
MCI
- UVF
1 stop18h 57m
American Airlines
Thu 7/303:20 pm
UVF
- MCI
2 stops20h 14m
American Airlines
Deal found 6/7![American Airlines logo]()
$703
This Delta deal was found by Cheapflights users on 6/9. 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.
Wed 8/196:00 am
STL
- UVF
1 stop7h 14m
Delta
Wed 8/263:34 pm
UVF
- STL
1 stop8h 47m
Delta
Deal found 6/9![Delta logo]()
$710
This Gotogate deal was found by Cheapflights users on 6/7. 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 6/202:15 pm
STL
- SLU
2 stops27h 45m
Multiple Airlines
Sat 6/2712:35 pm
SLU
- STL
2 stops24h 46m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$931
This American Airlines deal was found by Cheapflights users on 6/7. 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 8/224:45 pm
MCI
- UVF
1 stop20h 04m
American Airlines
Fri 8/282:49 pm
UVF
- MCI
1 stop10h 10m
American Airlines
Deal found 6/7![American Airlines logo]()
$712
This Delta deal was found by Cheapflights users on 6/8. 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 11/46:00 am
STL
- UVF
1 stop7h 26m
Delta
Tue 11/174:25 pm
UVF
- STL
1 stop17h 47m
Delta
Deal found 6/8![Delta logo]()
$752
This American Airlines deal was found by Cheapflights users on 6/6. 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.
Fri 7/105:18 pm
MCI
- UVF
2 stops19h 32m
American Airlines
Fri 7/173:20 pm
UVF
- MCI
2 stops22h 26m
American Airlines
Deal found 6/6![American Airlines logo]()
$728
This Delta deal was found by Cheapflights users on 6/9. 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.
Wed 7/15:38 am
MCI
- UVF
1 stop7h 35m
Delta
Wed 7/83:33 pm
UVF
- MCI
1 stop9h 25m
Delta
Deal found 6/9![Delta logo]()
$783
This American Airlines deal was found by Cheapflights users on 6/8. 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 9/235:00 am
STL
- UVF
1 stop7h 54m
American Airlines
Tue 9/293:02 pm
UVF
- STL
1 stop26h 13m
American Airlines
Deal found 6/8![American Airlines logo]()
$729
This Orbitz deal was found by Cheapflights users on 6/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:55 am
STL
- SLU
2 stops33h 05m
Multiple Airlines
Wed 10/2812:35 pm
SLU
- STL
2 stops27h 55m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$942
This American Airlines deal was found by Cheapflights users on 6/8. 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 12/22:54 pm
MCI
- UVF
2 stops20h 25m
American Airlines
Tue 12/84:53 pm
UVF
- MCI
2 stops18h 48m
American Airlines
Deal found 6/8![American Airlines logo]()
$733
This American Airlines deal was found by Cheapflights users on 6/9. 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 10/295:30 am
STL
- UVF
1 stop6h 55m
American Airlines
Fri 11/64:04 pm
UVF
- STL
1 stop18h 23m
American Airlines
Deal found 6/9![American Airlines logo]()
$745
This American Airlines deal was found by Cheapflights users on 6/5. 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.
Mon 12/72:09 pm
STL
- UVF
2 stops21h 10m
American Airlines
Sat 12/124:05 pm
UVF
- STL
2 stops20h 32m
American Airlines
Deal found 6/5![American Airlines logo]()
$750
This Gotogate deal was found by Cheapflights users on 6/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:40 pm
STL
- SLU
2 stops27h 20m
Multiple Airlines
Sat 7/113:45 pm
SLU
- STL
2 stops53h 37m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,203
This American Airlines deal was found by Cheapflights users on 6/7. 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 11/72:08 pm
STL
- UVF
2 stops21h 13m
American Airlines
Sat 11/144:50 pm
UVF
- STL
2 stops19h 25m
American Airlines
Deal found 6/7![American Airlines logo]()
$750
This American Airlines deal was found by Cheapflights users on 6/8. 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 9/2311:31 am
MCI
- UVF
2 stops25h 23m
American Airlines
Sun 9/273:02 pm
UVF
- MCI
2 stops22h 16m
American Airlines
Deal found 6/8![American Airlines logo]()
$763
This Gotogate deal was found by Cheapflights users on 6/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/58:55 am
STL
- SLU
2 stops33h 05m
Multiple Airlines
Sun 7/1212:35 pm
SLU
- STL
2 stops32h 47m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$1,246
This American Airlines deal was found by Cheapflights users on 6/5. 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.
Mon 11/236:13 pm
STL
- UVF
2 stops18h 47m
American Airlines
Fri 12/44:05 pm
UVF
- STL
2 stops18h 06m
American Airlines
Deal found 6/5![American Airlines logo]()
$765
This American Airlines deal was found by Cheapflights users on 6/7. 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 10/235:11 am
MCI
- UVF
1 stop9h 19m
American Airlines
Tue 10/274:00 pm
UVF
- MCI
2 stops20h 28m
American Airlines
Deal found 6/7![American Airlines logo]()
$768
This Mytrip deal was found by Cheapflights users on 6/9. 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 7/2212:10 pm
STL
- SLU
3 stops24h 00m
Multiple Airlines
Wed 7/2912:35 pm
SLU
- STL
2 stops26h 27m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,655
Last-minute flights from Missouri to Saint LuciaDiscover last-minute flight deals from Missouri to Saint Lucia. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Saint Lucia. Data last updated June 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/8. 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 7/15:38 am
MCI
- UVF
1 stop7h 35m
Delta
Wed 7/83:33 pm
UVF
- MCI
1 stop9h 25m
Delta
Deal found 6/8![Delta logo]()
$783
This American Airlines deal was found by Cheapflights users on 6/8. 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 7/15:21 pm
MCI
- UVF
2 stops19h 29m
American Airlines
Wed 7/82:50 pm
UVF
- MCI
2 stops18h 42m
American Airlines
Deal found 6/8![American Airlines logo]()
$818
This American Airlines deal was found by Cheapflights users on 6/6. 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 7/46:19 pm
STL
- UVF
1 stop18h 31m
American Airlines
Sat 7/111:10 pm
UVF
- STL
1 stop10h 44m
American Airlines
Deal found 6/6![American Airlines logo]()
$783
This American Airlines deal was found by Cheapflights users on 6/5. 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.
Sun 7/57:55 pm
STL
- UVF
2 stops17h 25m
American Airlines
Sun 7/123:20 pm
UVF
- STL
2 stops20h 04m
American Airlines
Deal found 6/5![American Airlines logo]()
$793
This American Airlines deal was found by Cheapflights users on 6/7. 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 7/65:53 pm
MCI
- UVF
1 stop18h 57m
American Airlines
Sat 7/112:50 pm
UVF
- MCI
1 stop10h 09m
American Airlines
Deal found 6/7![American Airlines logo]()
$803
This American Airlines deal was found by Cheapflights users on 6/6. 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.
Fri 7/105:21 pm
MCI
- UVF
1 stop18h 55m
American Airlines
Fri 7/173:20 pm
UVF
- MCI
1 stop8h 38m
American Airlines
Deal found 6/6![American Airlines logo]()
$723
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/132:40 pm
STL
- UVF
1 stop22h 30m
Air Canada
Tue 7/213:05 pm
UVF
- STL
1 stop23h 57m
Air Canada
Deal found 6/8![Air Canada logo]()
$590
This American Airlines deal was found by Cheapflights users on 6/8. 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 7/195:10 am
STL
- UVF
1 stop8h 10m
American Airlines
Sun 7/263:20 pm
UVF
- STL
1 stop18h 13m
American Airlines
Deal found 6/8![American Airlines logo]()
$798
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Mon 7/205:18 pm
MCI
- UVF
2 stops20h 02m
American Airlines
Thu 7/302:50 pm
UVF
- MCI
2 stops18h 42m
American Airlines
Deal found 6/9![American Airlines logo]()
$703
This American Airlines deal was found by Cheapflights users on 6/7. 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 7/218:41 pm
STL
- UVF
2 stops16h 09m
American Airlines
Tue 7/282:50 pm
UVF
- STL
2 stops19h 02m
American Airlines
Deal found 6/7![American Airlines logo]()
$739
This American Airlines deal was found by Cheapflights users on 6/7. 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 7/226:19 pm
MCI
- UVF
2 stops18h 31m
American Airlines
Wed 7/293:20 pm
UVF
- MCI
2 stops20h 14m
American Airlines
Deal found 6/7![American Airlines logo]()
$733
This American Airlines deal was found by Cheapflights users on 6/8. 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 7/225:18 am
STL
- UVF
1 stop7h 32m
American Airlines
Wed 7/293:20 pm
UVF
- STL
2 stops20h 15m
American Airlines
Deal found 6/8![American Airlines logo]()
$744
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 June 10, 2026.
Search for one-way flight options from Missouri to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This American Airlines deal was found by Cheapflights users on 6/7. 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 8/151:25 pm
STL
- UVF
2 stops23h 24m
American Airlines
Deal found 6/7![American Airlines logo]()
$369
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 June 10, 2026.
Round-trip from | $560 (Air Canada) |
|---|---|
One-way from | $369 (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 June 10, 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
Mon 8/10
2:40 pm-2:20 pm
1 stop22h 40m
Castries Hewanorra
Tue 8/18
3:15 pm-2:02 pm
1 stop23h 47m
$560
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Mon 7/20
5:53 pm-1:50 pm
1 stop18h 57m
Castries Hewanorra
Thu 7/30
3:20 pm-10:34 am
2 stops20h 14m
$703
Quickest round-trip
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Wed 8/19
6:00 am-2:14 pm
1 stop7h 14m
Castries Hewanorra
Wed 8/26
3:34 pm-11:21 pm
1 stop8h 47m
$710
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Sat 8/22
4:45 pm-1:49 pm
1 stop20h 04m
Castries Hewanorra
Fri 8/28
2:49 pm-11:59 pm
1 stop10h 10m
$712
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Fri 7/10
5:18 pm-1:50 pm
2 stops19h 32m
Castries Hewanorra
Fri 7/17
3:20 pm-12:46 pm
2 stops22h 26m
$728
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Wed 9/23
5:00 am-1:54 pm
1 stop7h 54m
Castries Hewanorra
Tue 9/29
3:02 pm-4:15 pm
1 stop26h 13m
$729
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Wed 12/2
2:54 pm-1:19 pm
2 stops20h 25m
Castries Hewanorra
Tue 12/8
4:53 pm-9:41 am
2 stops18h 48m
$733
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Thu 10/29
5:30 am-1:25 pm
1 stop6h 55m
Castries Hewanorra
Fri 11/6
4:04 pm-8:27 am
1 stop18h 23m
$745
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Mon 12/7
2:09 pm-1:19 pm
2 stops21h 10m
Castries Hewanorra
Sat 12/12
4:05 pm-10:37 am
2 stops20h 32m
$750
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Sat 11/7
2:08 pm-1:21 pm
2 stops21h 13m
Castries Hewanorra
Sat 11/14
4:50 pm-10:15 am
2 stops19h 25m
$750
Showing 1-10 of 21 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 $483). Flying from Missouri to Saint Lucia in June is currently the most expensive (average of $745). 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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Alternative routes for Missouri to Saint Lucia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Saint Lucia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Saint Lucia by cabin class
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 June 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$575 | Average$834 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$600 | Average$847 | FlexibilityNo cancel fee | On-timeN/A |