$334+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — UVF
Jul 5 — Jul 121
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 June 5, 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 5, 2026.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:10 pm
STL
- UVF
2 stops25h 10m
Air Canada
Tue 8/183:15 pm
UVF
- STL
1 stop23h 47m
Air Canada
Deal found 6/5![Air Canada logo]()
$458
This Travelocity deal was found by Cheapflights users on 6/2. 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 6/2![Air Canada logo]()
$562
This Air Canada deal was found by Cheapflights users on 6/4. 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 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 6/4![Air Canada logo]()
$664
This Booking.com deal was found by Cheapflights users on 6/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/112:10 pm
STL
- UVF
2 stops49h 00m
Air Canada
Tue 7/73:05 pm
UVF
- STL
1 stop30h 02m
Air Canada
Deal found 6/3![Air Canada logo]()
$686
This American Airlines deal was found by Cheapflights users on 6/4. 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
MCI
- UVF
2 stops20h 22m
American Airlines
Fri 8/283:14 pm
UVF
- MCI
2 stops20h 16m
American Airlines
Deal found 6/4![American Airlines logo]()
$693
This American Airlines deal was found by Cheapflights users on 6/4. 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 7/412:12 pm
MCI
- UVF
1 stop25h 08m
American Airlines
Thu 7/91:10 pm
UVF
- MCI
1 stop11h 49m
American Airlines
Deal found 6/4![American Airlines logo]()
$699
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 7/205:53 pm
MCI
- UVF
1 stop17h 22m
American Airlines
Thu 7/303:20 pm
UVF
- MCI
2 stops20h 14m
American Airlines
Deal found 6/5![American Airlines logo]()
$703
This American Airlines deal was found by Cheapflights users on 6/3. 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 7/177:46 pm
MCI
- UVF
2 stops17h 46m
American Airlines
Fri 7/242:50 pm
UVF
- MCI
2 stops18h 42m
American Airlines
Deal found 6/3![American Airlines logo]()
$718
This American Airlines deal was found by Cheapflights users on 6/2. 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 10/154:24 pm
MCI
- UVF
2 stops20h 11m
American Airlines
Thu 10/224:20 pm
UVF
- MCI
1 stop8h 46m
American Airlines
Deal found 6/2![American Airlines logo]()
$728
This American Airlines deal was found by Cheapflights users on 6/1. 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 7/56:31 am
MCI
- UVF
1 stop30h 49m
American Airlines
Sun 7/123:20 pm
UVF
- MCI
1 stop8h 38m
American Airlines
Deal found 6/1![American Airlines logo]()
$729
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 11/96:36 pm
MCI
- UVF
2 stops16h 45m
American Airlines
Sun 11/154:04 pm
UVF
- MCI
2 stops18h 42m
American Airlines
Deal found 6/5![American Airlines logo]()
$733
This American Airlines deal was found by Cheapflights users on 6/3. 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 11/84:20 pm
MCI
- UVF
2 stops19h 01m
American Airlines
Fri 11/134:04 pm
UVF
- MCI
2 stops18h 42m
American Airlines
Deal found 6/3![American Airlines logo]()
$756
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 5, 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 5, 2026.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:10 pm
STL
- UVF
2 stops25h 10m
Air Canada
Tue 8/183:15 pm
UVF
- STL
1 stop23h 47m
Air Canada
Deal found 6/5![Air Canada logo]()
$458
This American Airlines deal was found by Cheapflights users on 6/3. 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 7/205:21 pm
MCI
- UVF
2 stops19h 29m
American Airlines
Thu 7/303:20 pm
UVF
- MCI
2 stops20h 14m
American Airlines
Deal found 6/3![American Airlines logo]()
$693
This Delta deal was found by Cheapflights users on 6/3. 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 7/16:00 am
STL
- UVF
1 stop7h 13m
Delta
Tue 7/73:33 pm
UVF
- STL
1 stop9h 20m
Delta
Deal found 6/3![Delta logo]()
$748
This Gotogate deal was found by Cheapflights users on 6/1. 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 10/102:40 pm
STL
- SLU
2 stops27h 20m
Multiple Airlines
Sat 10/1712:35 pm
SLU
- STL
2 stops26h 25m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,156
This American Airlines deal was found by Cheapflights users on 6/4. 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 7/47:46 pm
MCI
- UVF
2 stops17h 04m
American Airlines
Thu 7/91:10 pm
UVF
- MCI
1 stop11h 49m
American Airlines
Deal found 6/4![American Airlines logo]()
$693
This American Airlines deal was found by Cheapflights users on 5/31. 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 09m
American Airlines
Fri 8/282:54 pm
UVF
- MCI
1 stop10h 09m
American Airlines
Deal found 5/31![American Airlines logo]()
$702
This American Airlines deal was found by Cheapflights users on 6/2. 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 10/154:24 pm
MCI
- UVF
2 stops20h 11m
American Airlines
Thu 10/224:00 pm
UVF
- MCI
2 stops19h 19m
American Airlines
Deal found 6/2![American Airlines logo]()
$728
This American Airlines deal was found by Cheapflights users on 5/31. 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 11/232:08 pm
STL
- UVF
2 stops21h 13m
American Airlines
Fri 12/44:05 pm
UVF
- STL
2 stops18h 45m
American Airlines
Deal found 5/31![American Airlines logo]()
$765
This American Airlines deal was found by Cheapflights users on 6/1. 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 11/182:54 pm
MCI
- UVF
2 stops20h 27m
American Airlines
Wed 11/254:04 pm
UVF
- MCI
1 stop9h 58m
American Airlines
Deal found 6/1![American Airlines logo]()
$768
This American Airlines deal was found by Cheapflights users on 5/31. 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 9/194:35 pm
MCI
- UVF
1 stop20h 19m
American Airlines
Fri 9/253:02 pm
UVF
- MCI
1 stop8h 57m
American Airlines
Deal found 5/31![American Airlines logo]()
$784
This Mytrip deal was found by Cheapflights users on 6/2. 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.
Mon 8/242:40 pm
STL
- SLU
2 stops16h 30m
Multiple Airlines
Fri 8/2812:35 pm
SLU
- STL
2 stops26h 27m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$1,334
This American Airlines deal was found by Cheapflights users on 5/31. 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 6/257:52 pm
MCI
- UVF
2 stops17h 24m
American Airlines
Mon 6/293:16 pm
UVF
- MCI
2 stops18h 19m
American Airlines
Deal found 5/31![American Airlines logo]()
$788
This Gotogate deal was found by Cheapflights users on 6/4. 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 7/198:55 am
STL
- SLU
2 stops33h 05m
Multiple Airlines
Sun 7/263:45 pm
SLU
- STL
2 stops47h 17m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$1,335
This American Airlines deal was found by Cheapflights users on 5/31. 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 10/84:51 pm
STL
- UVF
2 stops19h 44m
American Airlines
Sun 10/114:20 pm
UVF
- STL
1 stop16h 43m
American Airlines
Deal found 5/31![American Airlines logo]()
$790
This American Airlines deal was found by Cheapflights users on 6/2. 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 9/234:22 pm
MCI
- UVF
2 stops20h 32m
American Airlines
Sun 9/273:02 pm
UVF
- MCI
2 stops18h 36m
American Airlines
Deal found 6/2![American Airlines logo]()
$798
This Mytrip deal was found by Cheapflights users on 5/31. 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 8/132:40 pm
STL
- SLU
2 stops22h 55m
Multiple Airlines
Sun 8/165:00 am
SLU
- STL
3 stops18h 59m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$1,793
Last-minute flights from Missouri to Saint LuciaDiscover last-minute flight deals from Missouri to Saint Lucia. Data last updated June 5, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Saint Lucia. Data last updated June 5, 2026 and is based on user searches.
This Travelocity deal was found by Cheapflights users on 6/2. 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 6/82:15 pm
STL
- UVF
1 stop22h 55m
Air Canada
Fri 6/123:05 pm
UVF
- STL
1 stop22h 01m
Air Canada
Deal found 6/2![Air Canada logo]()
$492
This American Airlines deal was found by Cheapflights users on 5/31. 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 6/257:52 pm
MCI
- UVF
2 stops17h 24m
American Airlines
Mon 6/293:16 pm
UVF
- MCI
2 stops18h 19m
American Airlines
Deal found 5/31![American Airlines logo]()
$788
This Booking.com deal was found by Cheapflights users on 6/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/112:10 pm
STL
- UVF
2 stops49h 00m
Air Canada
Tue 7/73:05 pm
UVF
- STL
1 stop30h 02m
Air Canada
Deal found 6/3![Air Canada logo]()
$686
This Delta deal was found by Cheapflights users on 6/3. 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 7/16:00 am
STL
- UVF
1 stop7h 13m
Delta
Tue 7/73:33 pm
UVF
- STL
1 stop9h 20m
Delta
Deal found 6/3![Delta logo]()
$748
This American Airlines deal was found by Cheapflights users on 6/4. 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 7/412:12 pm
MCI
- UVF
1 stop25h 08m
American Airlines
Thu 7/91:10 pm
UVF
- MCI
1 stop11h 49m
American Airlines
Deal found 6/4![American Airlines logo]()
$699
This American Airlines deal was found by Cheapflights users on 6/4. 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 7/112:50 pm
UVF
- STL
1 stop9h 04m
American Airlines
Deal found 6/4![American Airlines logo]()
$773
This American Airlines deal was found by Cheapflights users on 6/1. 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 7/56:31 am
MCI
- UVF
1 stop30h 49m
American Airlines
Sun 7/123:20 pm
UVF
- MCI
1 stop8h 38m
American Airlines
Deal found 6/1![American Airlines logo]()
$729
This Air Canada deal was found by Cheapflights users on 6/4. 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 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 6/4![Air Canada logo]()
$664
This American Airlines deal was found by Cheapflights users on 6/3. 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 7/177:46 pm
MCI
- UVF
2 stops17h 46m
American Airlines
Fri 7/242:50 pm
UVF
- MCI
2 stops18h 42m
American Airlines
Deal found 6/3![American Airlines logo]()
$718
This American Airlines deal was found by Cheapflights users on 6/3. 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
2 stops20h 15m
American Airlines
Deal found 6/3![American Airlines logo]()
$793
This Gotogate deal was found by Cheapflights users on 6/4. 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 7/198:55 am
STL
- SLU
2 stops33h 05m
Multiple Airlines
Sun 7/263:45 pm
SLU
- STL
2 stops47h 17m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$1,335
This American Airlines deal was found by Cheapflights users on 6/4. 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 stop17h 22m
American Airlines
Thu 7/303:20 pm
UVF
- MCI
2 stops20h 14m
American Airlines
Deal found 6/4![American Airlines logo]()
$693
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 5, 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 5, 2026.
This American Airlines deal was found by Cheapflights users on 6/1. 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 10/245:26 pm
MCI
- UVF
2 stops18h 59m
American Airlines
Deal found 6/1![American Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 6/1. 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.
Sat 10/246:11 pm
MCI
- SLU
3 stops44h 54m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$552
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 5, 2026.
Round-trip from | $459 (Air Canada) |
|---|---|
One-way from | $334 (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 5, 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
12:10 pm-2:20 pm
2 stops25h 10m
Castries Hewanorra
Tue 8/18
3:15 pm-2:02 pm
1 stop23h 47m
$458
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Mon 7/20
5:21 pm-1:50 pm
2 stops19h 29m
Castries Hewanorra
Thu 7/30
3:20 pm-10:34 am
2 stops20h 14m
$693
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Sat 7/4
7:46 pm-1:50 pm
2 stops17h 04m
Castries Hewanorra
Thu 7/9
1:10 pm-11:59 pm
1 stop11h 49m
$693
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Sat 8/22
4:45 pm-1:54 pm
1 stop20h 09m
Castries Hewanorra
Fri 8/28
2:54 pm-12:03 am
1 stop10h 09m
$702
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Thu 10/15
4:24 pm-1:35 pm
2 stops20h 11m
Castries Hewanorra
Thu 10/22
4:00 pm-10:19 am
2 stops19h 19m
$728
Quickest round-trip
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Wed 7/1
6:00 am-2:13 pm
1 stop7h 13m
Castries Hewanorra
Tue 7/7
3:33 pm-11:53 pm
1 stop9h 20m
$748
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Mon 11/23
2:08 pm-1:21 pm
2 stops21h 13m
Castries Hewanorra
Fri 12/4
4:05 pm-8:50 am
2 stops18h 45m
$765
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Wed 11/18
2:54 pm-1:21 pm
2 stops20h 27m
Castries Hewanorra
Wed 11/25
4:04 pm-12:02 am
1 stop9h 58m
$768
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Sat 9/19
4:35 pm-1:54 pm
1 stop20h 19m
Castries Hewanorra
Fri 9/25
3:02 pm-10:59 pm
1 stop8h 57m
$784
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Thu 6/25
7:52 pm-2:16 pm
2 stops17h 24m
Castries Hewanorra
Mon 6/29
3:16 pm-8:35 am
2 stops18h 19m
$788
Showing 1-10 of 18 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.
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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
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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 July is currently the most expensive (average of $896). 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.
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 5, 2026.
Popular flight searches
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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 June 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$575 | Average$842 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$600 | Average$832 | FlexibilityNo cancel fee | On-timeN/A |