$332+ Cheap flights from Kansas City (MCI) 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — UVF
Oct 21 — Oct 281
Round-trip
1 adult, Economy
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Find cheap flights from Kansas City 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 Kansas City to Saint Lucia
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Best
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One-way
Cheapest flights from Kansas City to Saint LuciaExplore the most affordable flight options available from Kansas City to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
Explore the most affordable flight options available from Kansas City to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:44 pm -
2 stops18h 57m
Fri 11/134:41 pm -
2 stops18h 32m
Deal found 9/20![American Airlines logo]()
$599
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:43 pm -
3 stops41h 57m
Fri 11/135:35 pm -
2 stops28h 12m
Deal found 9/20![Multiple Airlines logo]()
$757
This American Airlines deal was found by Cheapflights users on 9/19. 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 10/155:01 am -
1 stop7h 41m
Mon 10/192:42 pm -
1 stop9h 17m
Deal found 9/19![American Airlines logo]()
$875
This American Airlines deal was found by Cheapflights users on 9/17. 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 9/262:27 pm -
2 stops22h 35m
Fri 10/23:02 pm -
2 stops21h 46m
Deal found 9/17![American Airlines logo]()
$903
This Delta deal was found by Cheapflights users on 9/18. 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 10/75:40 am -
1 stop7h 32m
Tue 10/133:32 pm -
1 stop9h 24m
Deal found 9/18![Delta logo]()
$938
This American Airlines deal was found by Cheapflights users on 9/18. 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 10/75:01 am -
1 stop9h 03m
Tue 10/134:04 pm -
2 stops17h 53m
Deal found 9/18![American Airlines logo]()
$948
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:40 am -
1 stop7h 32m
Tue 10/133:32 pm -
1 stop9h 24m
Deal found 9/18![Delta logo]()
$969
This American Airlines deal was found by Cheapflights users on 9/18. 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 10/95:20 pm -
2 stops20h 44m
Wed 10/142:42 pm -
2 stops19h 52m
Deal found 9/18![American Airlines logo]()
$990
Best flights from Kansas City to Saint LuciaDiscover carefully curated flight deals from Kansas City to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
Discover carefully curated flight deals from Kansas City to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
This American Airlines deal was found by Cheapflights users on 9/17. 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 1/315:00 am -
1 stop7h 42m
Mon 2/83:30 pm -
1 stop10h 29m
Deal found 9/17![American Airlines logo]()
$676
This Delta deal was found by Cheapflights users on 9/18. 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 1/305:40 am -
1 stop7h 25m
Thu 2/44:25 pm -
1 stop19h 10m
Deal found 9/18![Delta logo]()
$676
This American Airlines deal was found by Cheapflights users on 9/16. 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 2/35:00 am -
1 stop7h 42m
Mon 2/84:34 pm -
2 stops18h 07m
Deal found 9/16![American Airlines logo]()
$686
This Delta deal was found by Cheapflights users on 9/18. 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 1/315:40 am -
1 stop7h 25m
Tue 2/24:25 pm -
1 stop19h 10m
Deal found 9/18![Delta logo]()
$720
This Delta deal was found by Cheapflights users on 9/18. 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 1/315:40 am -
1 stop7h 25m
Thu 2/44:25 pm -
1 stop9h 33m
Deal found 9/18![Delta logo]()
$720
This American Airlines deal was found by Cheapflights users on 9/21. 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 2/116:36 pm -
2 stops19h 26m
Tue 2/165:02 pm -
2 stops20h 47m
Deal found 9/21![American Airlines logo]()
$742
Last-minute flights from Kansas City to Saint LuciaDiscover last-minute flight deals from Kansas City to Saint Lucia. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Saint Lucia. Data last updated September 21, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/17. 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 9/262:27 pm -
2 stops22h 35m
Fri 10/23:02 pm -
2 stops21h 46m
Deal found 9/17![American Airlines logo]()
$903
This Delta deal was found by Cheapflights users on 9/18. 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 10/75:40 am -
1 stop7h 32m
Tue 10/133:32 pm -
1 stop9h 24m
Deal found 9/18![Delta logo]()
$938
This American Airlines deal was found by Cheapflights users on 9/18. 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 10/75:01 am -
1 stop9h 03m
Tue 10/134:04 pm -
2 stops17h 53m
Deal found 9/18![American Airlines logo]()
$948
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/85:01 am -
1 stop7h 41m
Tue 10/134:04 pm -
2 stops22h 01m
Deal found 9/16![American Airlines logo]()
$1,898
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:40 am -
1 stop7h 32m
Wed 10/143:32 pm -
1 stop9h 24m
Deal found 9/18![Delta logo]()
$969
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:40 am -
1 stop7h 32m
Tue 10/133:32 pm -
1 stop9h 24m
Deal found 9/19![Delta logo]()
$985
This American Airlines deal was found by Cheapflights users on 9/18. 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 10/95:20 pm -
2 stops20h 44m
Wed 10/142:42 pm -
2 stops19h 52m
Deal found 9/18![American Airlines logo]()
$990
This American Airlines deal was found by Cheapflights users on 9/18. 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 10/95:01 am -
1 stop9h 03m
Tue 10/134:04 pm -
1 stop25h 12m
Deal found 9/18![American Airlines logo]()
$1,927
This American Airlines deal was found by Cheapflights users on 9/19. 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 10/155:01 am -
1 stop7h 41m
Mon 10/192:42 pm -
1 stop9h 17m
Deal found 9/19![American Airlines logo]()
$875
One-way flights from Kansas City to Saint LuciaSearch for one-way flight options from Kansas City to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
Search for one-way flight options from Kansas City to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:16 am -
2 stops51h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Mon 12/286:00 am -
2 stops54h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Wed 12/1611:27 am -
2 stops24h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$405
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Sun 12/276:00 am -
2 stops54h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$431
This American Airlines deal was found by Cheapflights users on 9/21. 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 12/176:00 am -
2 stops28h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:39 pm -
2 stops41h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![United Airlines logo]()
$460
This American Airlines deal was found by Cheapflights users on 9/21. 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 12/226:31 pm -
1 stop18h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$470
This American Airlines deal was found by Cheapflights users on 9/21. 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 12/216:45 am -
2 stops28h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$475
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/96:29 am -
1 stop30h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![United Airlines logo]()
$481
This Delta deal was found by Cheapflights users on 9/18. 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 9/285:44 am -
1 stop7h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Delta logo]()
$492
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Sun 12/209:48 am -
2 stops26h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$504
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/258:36 pm -
3 stops23h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$1,016
Find flight deals from Kansas City to Saint Lucia
Keep the following information in mind while searching for Kansas City to Saint Lucia flight deals. Data was last updated September 21, 2026.
Round-trip from | $594 (American Airlines) |
|---|---|
One-way from | $332 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Kansas City 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 7,457,451 searches. Data last updated September 21, 2026.
Use the filters below to find and compare flights from Kansas City to Saint Lucia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Mon 12/28
6:00 am-2:15 pm
2 stops54h 15m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$395
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Wed 12/16
11:27 am-2:15 pm
2 stops24h 48m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$405
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Thu 10/8
6:39 pm-1:31 pm
2 stops41h 52m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$460
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Fri 10/9
6:29 am-1:31 pm
1 stop30h 02m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$481
Quickest round-trip
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Wed 9/30
5:44 am-2:12 pm
1 stop7h 28m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$492
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Fri 10/9
8:43 pm-1:40 pm
3 stops39h 57m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$492
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Mon 9/28
5:44 am-2:12 pm
1 stop7h 28m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$492
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Tue 9/29
5:44 am-2:12 pm
1 stop7h 28m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$492
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Sun 12/20
9:48 am-2:15 pm
2 stops26h 27m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$504
Kansas CityCastries
MCI Kansas City - UVF Castries Hewanorra
MCIUVF
Kansas City
Thu 10/1
6:39 pm-1:31 pm
2 stops41h 52m
Castries Hewanorra
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$507
Showing 1-10 of 18 resultsSorted by cheapest first
Best time to book a flight from Kansas City to Saint Lucia
Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Kansas City with our price prediction graph.
MCI-UVF
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 Kansas City to Saint Lucia
MCI-LC0
MCI-UVF
MCI-SLU
What is the cheapest month to book a flight from Kansas City to Saint Lucia?
Currently, August is the cheapest month in which you can book a flight from Kansas City to Saint Lucia (average of $694). Flying from Kansas City to Saint Lucia in November is currently the most expensive (average of $1,431). 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.
Reviews of airlines servicing Saint Lucia
Get insights into the airlines that provide service to Saint Lucia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint Lucia. Reviews last updated September 21, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from Kansas City to Saint Lucia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from Kansas City 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 Kansas City to Saint Lucia
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Complete your trip
Complete your trip to Saint Lucia by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Kansas City to Saint Lucia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kansas City and Saint Lucia flights
Browse other Kansas City and Saint Lucia flight options. Last updated on September 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Kansas City to Saint Lucia
Discover the top 2 airlines that operate flights from Kansas City 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 7,457,451 searches. Data last updated September 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$616 | Average$946 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$663 | Average$894 | FlexibilityNo cancel fee | On-timeN/A |