$311+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UVF
Sep 8 — Sep 151
Round-trip
1 adult, Economy
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Find cheap flights from Missouri to Saint Lucia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 August 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 August 9, 2026.
This Air Canada deal was found by Cheapflights users on 8/4. 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 8/318:55 am -
1 stop28h 25m
Fri 9/113:10 pm -
1 stop23h 50m
Deal found 8/4![Air Canada logo]()
$436
This Air Canada deal was found by Cheapflights users on 8/7. 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.
Thu 10/294:05 pm -
1 stop22h 35m
Fri 11/65:40 pm -
1 stop23h 46m
Deal found 8/7![Air Canada logo]()
$439
This Air Canada deal was found by Cheapflights users on 8/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:05 pm -
1 stop22h 35m
Thu 12/105:40 pm -
1 stop23h 46m
Deal found 8/3![Air Canada logo]()
$536
This Air Canada deal was found by Cheapflights users on 8/4. 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.
Thu 9/38:55 am -
1 stop28h 25m
Fri 9/113:10 pm -
1 stop23h 50m
Deal found 8/4![Air Canada logo]()
$545
This Delta deal was found by Cheapflights users on 8/7. 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 9/225:44 am -
1 stop7h 28m
Tue 9/293:32 pm -
1 stop9h 19m
Deal found 8/7![Delta logo]()
$728
This Delta deal was found by Cheapflights users on 8/7. 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.
Wed 9/306:00 am -
1 stop7h 12m
Tue 10/63:32 pm -
1 stop9h 22m
Deal found 8/7![Delta logo]()
$730
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/262:54 pm -
2 stops22h 08m
Fri 10/23:02 pm -
1 stop8h 57m
Deal found 8/4![American Airlines logo]()
$733
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/261:25 pm -
2 stops23h 37m
Wed 9/303:02 pm -
2 stops20h 13m
Deal found 8/4![American Airlines logo]()
$735
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/305:00 am -
1 stop8h 02m
Tue 10/64:04 pm -
2 stops19h 46m
Deal found 8/7![American Airlines logo]()
$740
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/194:35 pm -
1 stop20h 27m
Fri 9/253:02 pm -
2 stops22h 16m
Deal found 8/4![American Airlines logo]()
$747
This American Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:00 am -
1 stop8h 02m
Tue 9/293:02 pm -
2 stops18h 44m
Deal found 8/8![American Airlines logo]()
$764
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Fri 10/305:00 am -
1 stop9h 04m
Fri 11/64:07 pm -
1 stop9h 51m
Deal found 8/4![American Airlines logo]()
$765
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 August 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 August 9, 2026.
This Air Canada deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:05 pm -
1 stop22h 35m
Fri 11/65:40 pm -
1 stop23h 46m
Deal found 8/8![Air Canada logo]()
$439
This Delta deal was found by Cheapflights users on 8/7. 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 9/225:44 am -
1 stop7h 28m
Tue 9/293:32 pm -
1 stop9h 19m
Deal found 8/7![Delta logo]()
$728
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/224:22 pm -
2 stops20h 40m
Tue 9/293:02 pm -
1 stop8h 57m
Deal found 8/7![American Airlines logo]()
$733
This Gotogate deal was found by Cheapflights users on 8/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:40 pm -
2 stops27h 20m
Tue 9/293:45 pm -
2 stops47h 15m
Deal found 8/8![Multiple Airlines logo]()
$792
This Delta deal was found by Cheapflights users on 8/7. 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.
Wed 9/306:00 am -
1 stop7h 12m
Tue 10/63:32 pm -
1 stop9h 22m
Deal found 8/7![Delta logo]()
$730
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/264:35 pm -
1 stop20h 27m
Fri 10/23:02 pm -
1 stop8h 57m
Deal found 8/7![American Airlines logo]()
$743
This Delta deal was found by Cheapflights users on 8/7. 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 9/296:00 am -
1 stop7h 12m
Mon 10/53:32 pm -
1 stop9h 10m
Deal found 8/7![Delta logo]()
$765
This American Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:00 am -
1 stop9h 04m
Fri 11/64:07 pm -
1 stop9h 51m
Deal found 8/8![American Airlines logo]()
$765
This Delta deal was found by Cheapflights users on 8/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
1 stop7h 12m
Wed 9/303:32 pm -
1 stop9h 10m
Deal found 8/4![Delta logo]()
$765
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Sun 11/155:00 am -
1 stop8h 01m
Sun 11/224:07 pm -
1 stop10h 19m
Deal found 8/4![American Airlines logo]()
$768
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/295:18 pm -
2 stops19h 44m
Mon 10/53:20 pm -
2 stops19h 00m
Deal found 8/7![American Airlines logo]()
$770
This Delta deal was found by Cheapflights users on 8/5. 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 1/175:40 am -
1 stop7h 25m
Sat 1/234:25 pm -
1 stop9h 33m
Deal found 8/5![Delta logo]()
$789
This Delta deal was found by Cheapflights users on 8/5. 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.
Mon 1/185:40 am -
1 stop7h 25m
Sat 1/234:25 pm -
1 stop9h 33m
Deal found 8/5![Delta logo]()
$789
This American Airlines deal was found by Cheapflights users on 8/6. 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.
Wed 2/37:46 pm -
2 stops18h 16m
Mon 2/84:05 pm -
2 stops18h 42m
Deal found 8/6![American Airlines logo]()
$808
This Mytrip deal was found by Cheapflights users on 8/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:55 am -
2 stops27h 15m
Wed 9/912:35 pm -
2 stops26h 25m
Deal found 8/4![Multiple Airlines logo]()
$1,212
This American Airlines deal was found by Cheapflights users on 8/5. 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 1/164:52 pm -
2 stops18h 55m
Sat 1/235:02 pm -
2 stops17h 39m
Deal found 8/5![American Airlines logo]()
$818
This Gotogate deal was found by Cheapflights users on 8/4. 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.
Fri 8/282:40 pm -
2 stops27h 20m
Sun 8/3012:35 pm -
2 stops32h 49m
Deal found 8/4![Multiple Airlines logo]()
$1,262
This American Airlines deal was found by Cheapflights users on 8/5. 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 12/134:06 pm -
2 stops19h 13m
Fri 12/184:54 pm -
1 stop9h 50m
Deal found 8/5![American Airlines logo]()
$819
This FlightHub deal was found by Cheapflights users on 8/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:55 am -
2 stops22h 15m
Fri 10/212:35 pm -
2 stops32h 25m
Deal found 8/8![Multiple Airlines logo]()
$1,424
This Travelocity deal was found by Cheapflights users on 8/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:55 am -
2 stops28h 40m
Thu 9/105:50 pm -
3 stops27h 30m
Deal found 8/4![Multiple Airlines logo]()
$3,729
This Expedia deal was found by Cheapflights users on 8/7. 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.
Thu 1/144:05 pm -
2 stops20h 30m
Mon 1/187:40 pm -
2 stops45h 46m
Deal found 8/7![Multiple Airlines logo]()
$3,803
Last-minute flights from Missouri to Saint LuciaDiscover last-minute flight deals from Missouri to Saint Lucia. Data last updated August 9, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Saint Lucia. Data last updated August 9, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 8/4. 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.
Sun 8/3012:10 pm -
2 stops49h 10m
Fri 9/113:10 pm -
1 stop23h 50m
Deal found 8/4![Air Canada logo]()
$439
This Air Canada deal was found by Cheapflights users on 8/4. 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 8/318:55 am -
1 stop28h 25m
Fri 9/113:10 pm -
1 stop23h 50m
Deal found 8/4![Air Canada logo]()
$436
This Air Canada deal was found by Cheapflights users on 8/4. 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.
Thu 9/38:55 am -
1 stop28h 25m
Fri 9/113:10 pm -
1 stop23h 50m
Deal found 8/4![Air Canada logo]()
$545
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/194:35 pm -
1 stop20h 27m
Fri 9/253:02 pm -
2 stops22h 16m
Deal found 8/4![American Airlines logo]()
$747
This Delta deal was found by Cheapflights users on 8/7. 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 9/225:44 am -
1 stop7h 28m
Tue 9/293:32 pm -
1 stop9h 19m
Deal found 8/7![Delta logo]()
$728
This American Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:00 am -
1 stop8h 02m
Tue 9/293:02 pm -
2 stops18h 44m
Deal found 8/8![American Airlines logo]()
$764
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/262:54 pm -
2 stops22h 08m
Fri 10/23:02 pm -
1 stop8h 57m
Deal found 8/4![American Airlines logo]()
$733
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/261:25 pm -
2 stops23h 37m
Wed 9/303:02 pm -
2 stops20h 13m
Deal found 8/4![American Airlines logo]()
$735
This Delta deal was found by Cheapflights users on 8/7. 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 9/296:00 am -
1 stop7h 12m
Mon 10/53:32 pm -
1 stop9h 10m
Deal found 8/7![Delta logo]()
$765
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/295:18 pm -
2 stops19h 44m
Mon 10/53:20 pm -
2 stops19h 00m
Deal found 8/7![American Airlines logo]()
$770
This Delta deal was found by Cheapflights users on 8/7. 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.
Wed 9/306:00 am -
1 stop7h 12m
Tue 10/63:32 pm -
1 stop9h 22m
Deal found 8/7![Delta logo]()
$730
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/305:00 am -
1 stop8h 02m
Tue 10/64:04 pm -
2 stops19h 46m
Deal found 8/7![American Airlines logo]()
$740
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 August 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 August 9, 2026.
This Mytrip deal was found by Cheapflights users on 8/7. 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.
Wed 9/308:55 am -
2 stops33h 05m
Deal found 8/7![Multiple Airlines logo]()
$311
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 August 9, 2026.
Round-trip from | $436 (Air Canada) |
|---|---|
One-way from | $311 (Mytrip) |
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 August 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 Lambert-St Louis - UVF Castries Hewanorra
STLUVF
Lambert-St Louis
Thu 10/29
4:05 pm-3:40 pm
1 stop22h 35m
Castries Hewanorra
Fri 11/6
5:40 pm-3:26 pm
1 stop23h 46m
$439
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Tue 9/22
5:44 am-2:12 pm
1 stop7h 28m
Castries Hewanorra
Tue 9/29
3:32 pm-11:51 pm
1 stop9h 19m
$728
St. LouisCastries
STL Lambert-St Louis - UVF Castries Hewanorra
STLUVF
Lambert-St Louis
Wed 9/30
6:00 am-2:12 pm
1 stop7h 12m
Castries Hewanorra
Tue 10/6
3:32 pm-11:54 pm
1 stop9h 22m
$730
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Tue 9/22
4:22 pm-2:02 pm
2 stops20h 40m
Castries Hewanorra
Tue 9/29
3:02 pm-10:59 pm
1 stop8h 57m
$733
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Sat 9/26
4:35 pm-2:02 pm
1 stop20h 27m
Castries Hewanorra
Fri 10/2
3:02 pm-10:59 pm
1 stop8h 57m
$743
Quickest round-trip
St. LouisCastries
STL Lambert-St Louis - UVF Castries Hewanorra
STLUVF
Lambert-St Louis
Tue 9/29
6:00 am-2:12 pm
1 stop7h 12m
Castries Hewanorra
Mon 10/5
3:32 pm-11:42 pm
1 stop9h 10m
$765
St. LouisCastries
STL Lambert-St Louis - UVF Castries Hewanorra
STLUVF
Lambert-St Louis
Fri 10/30
5:00 am-3:04 pm
1 stop9h 04m
Castries Hewanorra
Fri 11/6
4:07 pm-11:58 pm
1 stop9h 51m
$765
St. LouisCastries
STL Lambert-St Louis - UVF Castries Hewanorra
STLUVF
Lambert-St Louis
Sat 9/26
6:00 am-2:12 pm
1 stop7h 12m
Castries Hewanorra
Wed 9/30
3:32 pm-11:42 pm
1 stop9h 10m
$765
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Sun 11/15
5:00 am-3:01 pm
1 stop8h 01m
Castries Hewanorra
Sun 11/22
4:07 pm-12:26 am
1 stop10h 19m
$768
St. LouisCastries
STL Lambert-St Louis - UVF Castries Hewanorra
STLUVF
Lambert-St Louis
Tue 9/29
5:18 pm-2:02 pm
2 stops19h 44m
Castries Hewanorra
Mon 10/5
3:20 pm-9:20 am
2 stops19h 00m
$770
Showing 1-10 of 22 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 $693). Flying from Missouri to Saint Lucia in May is currently the most expensive (average of $1,041). 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 August 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 August 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$575 | Average$862 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$600 | Average$869 | FlexibilityNo cancel fee | On-timeN/A |