$382+ Cheap flights from Missouri to Saint Lucia
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UVF
May 9 — May 161
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 April 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 April 9, 2026.
This Expedia deal was found by Cheapflights users on 4/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/12:15 pm
STL
- UVF
1 stop22h 55m
Air Canada
Fri 6/53:05 pm
UVF
- STL
1 stop22h 01m
Air Canada
Deal found 4/7![Air Canada logo]()
$382
This Expedia deal was found by Cheapflights users on 4/6. 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.
Mon 6/222:15 pm
STL
- UVF
1 stop23h 05m
Air Canada
Fri 6/263:05 pm
UVF
- STL
1 stop22h 16m
Air Canada
Deal found 4/6![Air Canada logo]()
$387
This Air Canada deal was found by Cheapflights users on 4/7. 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 8/172:40 pm
STL
- UVF
1 stop22h 40m
Air Canada
Fri 8/213:15 pm
UVF
- STL
1 stop23h 47m
Air Canada
Deal found 4/7![Air Canada logo]()
$576
This Orbitz deal was found by Cheapflights users on 4/7. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:55 am
STL
- UVF
1 stop28h 25m
Air Canada
Tue 8/43:05 pm
UVF
- STL
1 stop30h 02m
Air Canada
Deal found 4/7![Air Canada logo]()
$626
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:38 pm
MCI
- UVF
1 stop18h 27m
Delta
Thu 5/283:25 pm
UVF
- MCI
1 stop19h 04m
Delta
Deal found 4/6![Delta logo]()
$708
This American Airlines deal was found by Cheapflights users on 4/6. 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 8/223:49 pm
MCI
- UVF
2 stops21h 20m
American Airlines
Fri 8/283:09 pm
UVF
- MCI
2 stops19h 21m
American Airlines
Deal found 4/6![American Airlines logo]()
$713
This American Airlines deal was found by Cheapflights users on 4/6. 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 10/56:37 pm
MCI
- UVF
1 stop17h 48m
American Airlines
Fri 10/94:20 pm
UVF
- MCI
1 stop18h 59m
American Airlines
Deal found 4/6![American Airlines logo]()
$714
This American Airlines deal was found by Cheapflights users on 4/6. 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 11/74:48 pm
STL
- UVF
2 stops18h 33m
American Airlines
Sat 11/144:50 pm
UVF
- STL
2 stops19h 47m
American Airlines
Deal found 4/6![American Airlines logo]()
$730
This American Airlines deal was found by Cheapflights users on 4/4. 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 10/264:24 pm
MCI
- UVF
2 stops20h 11m
American Airlines
Mon 11/22:28 pm
UVF
- MCI
2 stops20h 18m
American Airlines
Deal found 4/4![American Airlines logo]()
$738
This American Airlines deal was found by Cheapflights users on 4/7. 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 12/155:05 am
MCI
- UVF
1 stop8h 48m
American Airlines
Tue 12/224:54 pm
UVF
- MCI
1 stop9h 50m
American Airlines
Deal found 4/7![American Airlines logo]()
$741
This American Airlines deal was found by Cheapflights users on 4/5. 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 8/153:49 pm
MCI
- UVF
2 stops21h 20m
American Airlines
Fri 8/213:09 pm
UVF
- MCI
2 stops20h 08m
American Airlines
Deal found 4/5![American Airlines logo]()
$746
This Orbitz deal was found by Cheapflights users on 4/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:15 pm
STL
- SLU
2 stops27h 45m
Multiple Airlines
Sat 5/163:45 pm
SLU
- STL
2 stops45h 21m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,191
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 April 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 April 9, 2026.
This Air Canada deal was found by Cheapflights users on 4/7. 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 6/11:05 pm
STL
- UVF
2 stops24h 05m
Air Canada
Fri 6/53:05 pm
UVF
- STL
1 stop22h 01m
Air Canada
Deal found 4/7![Air Canada logo]()
$385
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:40 am
MCI
- UVF
1 stop7h 22m
Delta
Wed 5/133:25 pm
UVF
- MCI
1 stop9h 24m
Delta
Deal found 4/6![Delta logo]()
$708
This American Airlines deal was found by Cheapflights users on 4/5. 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.
Fri 10/23:29 pm
STL
- UVF
2 stops21h 21m
American Airlines
Mon 10/124:20 pm
UVF
- STL
2 stops21h 04m
American Airlines
Deal found 4/5![American Airlines logo]()
$835
This Orbitz deal was found by Cheapflights users on 4/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:15 pm
STL
- SLU
2 stops27h 45m
Multiple Airlines
Sat 5/163:45 pm
SLU
- STL
2 stops45h 21m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,191
This FlightHub deal was found by Cheapflights users on 4/6. 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.
Mon 6/221:20 pm
STL
- UVF
2 stops24h 00m
Air Canada
Fri 6/263:05 pm
UVF
- STL
2 stops30h 20m
Air Canada
Deal found 4/6![Air Canada logo]()
$652
This Delta deal was found by Cheapflights users on 4/8. 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.
Sat 5/96:00 am
STL
- UVF
1 stop7h 09m
Delta
Fri 5/153:25 pm
UVF
- STL
1 stop9h 34m
Delta
Deal found 4/8![Delta logo]()
$773
This American Airlines deal was found by Cheapflights users on 4/5. 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.
Wed 9/165:33 am
STL
- UVF
1 stop7h 17m
American Airlines
Sun 9/204:00 pm
UVF
- STL
1 stop8h 12m
American Airlines
Deal found 4/5![American Airlines logo]()
$845
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:40 am
MCI
- UVF
1 stop7h 22m
Delta
Tue 5/123:25 pm
UVF
- MCI
1 stop9h 24m
Delta
Deal found 4/6![Delta logo]()
$843
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
STL
- UVF
1 stop7h 05m
Delta
Wed 5/273:25 pm
UVF
- STL
1 stop9h 34m
Delta
Deal found 4/5![Delta logo]()
$863
This American Airlines deal was found by Cheapflights users on 4/6. 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 5/2411:28 am
MCI
- UVF
1 stop23h 29m
American Airlines
Tue 6/21:05 pm
UVF
- MCI
1 stop10h 56m
American Airlines
Deal found 4/6![American Airlines logo]()
$1,022
This Delta deal was found by Cheapflights users on 4/5. 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 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 33m
Delta
Deal found 4/5![Delta logo]()
$869
This Delta deal was found by Cheapflights users on 4/8. 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 6/305:39 am
MCI
- UVF
1 stop7h 34m
Delta
Wed 7/83:33 pm
UVF
- MCI
1 stop9h 24m
Delta
Deal found 4/8![Delta logo]()
$941
This American Airlines deal was found by Cheapflights users on 4/9. 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 5/305:21 pm
MCI
- UVF
2 stops19h 27m
American Airlines
Fri 6/53:16 pm
UVF
- MCI
2 stops22h 31m
American Airlines
Deal found 4/9![American Airlines logo]()
$1,163
This American Airlines deal was found by Cheapflights users on 4/9. 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 6/2411:18 am
MCI
- UVF
1 stop23h 47m
American Airlines
Tue 6/303:16 pm
UVF
- MCI
2 stops21h 33m
American Airlines
Deal found 4/9![American Airlines logo]()
$1,214
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:39 am
MCI
- UVF
1 stop7h 26m
Delta
Mon 5/253:25 pm
UVF
- MCI
1 stop19h 04m
Delta
Deal found 4/6![Delta logo]()
$1,079
This Mytrip deal was found by Cheapflights users on 4/6. 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.
Thu 4/234:47 pm
MCI
- SLU
3 stops25h 13m
Multiple Airlines
Sun 4/2612:35 pm
SLU
- MCI
3 stops29h 31m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$2,649
Last-minute flights from Missouri to Saint LuciaDiscover last-minute flight deals from Missouri to Saint Lucia. Data last updated April 9, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Saint Lucia. Data last updated April 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/5. 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 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 33m
Delta
Deal found 4/5![Delta logo]()
$869
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:40 am
MCI
- UVF
1 stop7h 22m
Delta
Tue 5/123:25 pm
UVF
- MCI
1 stop9h 24m
Delta
Deal found 4/6![Delta logo]()
$843
This American Airlines deal was found by Cheapflights users on 4/8. 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 5/75:21 pm
STL
- UVF
2 stops20h 05m
American Airlines
Thu 5/142:45 pm
UVF
- STL
2 stops18h 42m
American Airlines
Deal found 4/8![American Airlines logo]()
$778
This United Airlines deal was found by Cheapflights users on 4/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:45 am
STL
- UVF
1 stop30h 46m
United Airlines
Sat 5/1612:55 pm
UVF
- STL
1 stop10h 50m
United Airlines
Deal found 4/5![United Airlines logo]()
$917
This Delta deal was found by Cheapflights users on 4/8. 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.
Sat 5/96:00 am
STL
- UVF
1 stop7h 09m
Delta
Fri 5/153:25 pm
UVF
- STL
1 stop9h 34m
Delta
Deal found 4/8![Delta logo]()
$773
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:38 pm
MCI
- UVF
1 stop18h 27m
Delta
Tue 5/263:25 pm
UVF
- MCI
1 stop9h 24m
Delta
Deal found 4/6![Delta logo]()
$708
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:38 pm
MCI
- UVF
1 stop18h 27m
Delta
Mon 5/253:25 pm
UVF
- MCI
1 stop19h 04m
Delta
Deal found 4/6![Delta logo]()
$856
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
STL
- UVF
1 stop7h 05m
Delta
Wed 5/273:25 pm
UVF
- STL
1 stop9h 34m
Delta
Deal found 4/5![Delta logo]()
$863
This American Airlines deal was found by Cheapflights users on 4/6. 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 5/225:21 pm
MCI
- UVF
1 stop18h 45m
American Airlines
Wed 5/272:48 pm
UVF
- MCI
1 stop9h 13m
American Airlines
Deal found 4/6![American Airlines logo]()
$833
This American Airlines deal was found by Cheapflights users on 4/7. 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 5/225:40 pm
STL
- UVF
1 stop18h 26m
American Airlines
Fri 5/292:48 pm
UVF
- STL
2 stops21h 00m
American Airlines
Deal found 4/7![American Airlines logo]()
$859
This American Airlines deal was found by Cheapflights users on 4/6. 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 5/245:16 pm
MCI
- UVF
2 stops17h 41m
American Airlines
Tue 6/23:16 pm
UVF
- MCI
2 stops21h 33m
American Airlines
Deal found 4/6![American Airlines logo]()
$776
This Delta deal was found by Cheapflights users on 4/9. 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.
Thu 5/285:39 am
MCI
- UVF
1 stop7h 26m
Delta
Mon 6/13:25 pm
UVF
- MCI
1 stop9h 24m
Delta
Deal found 4/9![Delta logo]()
$778
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 April 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 April 9, 2026.
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/45:39 am
MCI
- UVF
1 stop7h 26m
Delta
Deal found 4/5![Delta logo]()
$452
This American Airlines deal was found by Cheapflights users on 4/5. 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.
Thu 6/45:21 pm
MCI
- UVF
2 stops19h 27m
American Airlines
Deal found 4/5![American Airlines logo]()
$535
This FlightHub deal was found by Cheapflights users on 4/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:36 pm
MCI
- UVF
2 stops42h 34m
Air Canada
Deal found 4/5![Air Canada logo]()
$838
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/75:39 am
MCI
- UVF
1 stop7h 34m
Delta
Deal found 4/5![Delta logo]()
$951
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 April 9, 2026.
Round-trip from | $382 (Expedia) |
|---|
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 April 9, 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 6/1
1:05 pm-2:10 pm
2 stops24h 05m
Castries Hewanorra
Fri 6/5
3:05 pm-12:06 pm
1 stop22h 01m
$385
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Mon 6/22
1:20 pm-2:20 pm
2 stops24h 00m
Castries Hewanorra
Fri 6/26
3:05 pm-8:25 pm
2 stops30h 20m
$652
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Wed 5/6
5:40 am-2:02 pm
1 stop7h 22m
Castries Hewanorra
Wed 5/13
3:25 pm-11:49 pm
1 stop9h 24m
$708
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Sat 5/9
6:00 am-2:09 pm
1 stop7h 09m
Castries Hewanorra
Fri 5/15
3:25 pm-11:59 pm
1 stop9h 34m
$773
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Fri 10/2
3:29 pm-1:50 pm
2 stops21h 21m
Castries Hewanorra
Mon 10/12
4:20 pm-12:24 pm
2 stops21h 04m
$835
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Tue 5/5
5:40 am-2:02 pm
1 stop7h 22m
Castries Hewanorra
Tue 5/12
3:25 pm-11:49 pm
1 stop9h 24m
$843
Quickest round-trip
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Wed 9/16
5:33 am-1:50 pm
1 stop7h 17m
Castries Hewanorra
Sun 9/20
4:00 pm-11:12 pm
1 stop8h 12m
$845
St. LouisCastries
STL - UVF
STLUVF
Lambert-St Louis
Wed 5/20
6:00 am-2:05 pm
1 stop7h 05m
Castries Hewanorra
Wed 5/27
3:25 pm-11:59 pm
1 stop9h 34m
$863
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-11:55 pm
1 stop9h 33m
$869
Kansas CityCastries
MCI - UVF
MCIUVF
Kansas City
Tue 6/30
5:39 am-2:13 pm
1 stop7h 34m
Castries Hewanorra
Wed 7/8
3:33 pm-11:57 pm
1 stop9h 24m
$941
Showing 1-10 of 19 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.
MCI-UVF
STL-UVF
STL-SLU
MCI-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
MCI-UVF
STL-UVF
STL-SLU
MCI-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
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 April 9, 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 April 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$575 | Average$783 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$575 | Average$803 | FlexibilityNo cancel fee | On-timeN/A |