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Saint Lucia

$256+ Cheap flights from Illinois 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — UVF
ene. 9 — ene. 161
vie. 1/9
vie. 1/16
1 adult, Economy
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Cheap flight deals from Illinois to Saint Lucia

Cheapest flights from Illinois to Saint Lucia
Explore the most affordable flight options available from Illinois to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 10, 2025.

This Expedia deal was found by Cheapflights users on 12/7. 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.
mié. 12/1011:25 amORD - UVF
2 stops25h 27mMultiple Airlines
dom. 12/145:15 pmUVF - ORD
2 stops21h 36mMultiple Airlines
Deal found 12/7$626
This Delta deal was found by Cheapflights users on 12/9. 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.
vie. 12/125:30 amORD - UVF
1 stop8h 06mDelta
mié. 12/174:56 pmUVF - ORD
1 stop17h 43mDelta
Deal found 12/9$798
This American Airlines deal was found by Cheapflights users on 12/10. 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.
sáb. 12/138:50 pmORD - UVF
2 stops14h 29mAmerican Airlines
sáb. 12/203:53 pmUVF - ORD
1 stop10h 06mAmerican Airlines
Deal found 12/10$808
This Delta deal was found by Cheapflights users on 12/8. 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.
sáb. 12/135:30 amORD - UVF
1 stop8h 06mDelta
sáb. 12/204:53 pmUVF - ORD
1 stop9h 09mDelta
Deal found 12/8$828
This Delta deal was found by Cheapflights users on 12/8. 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.
mié. 12/175:30 amORD - UVF
1 stop8h 06mDelta
vie. 12/264:50 pmUVF - ORD
1 stop9h 13mDelta
Deal found 12/8$831
This American Airlines deal was found by Cheapflights users on 12/7. 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.
mié. 12/106:35 pmORD - UVF
1 stop18h 27mAmerican Airlines
dom. 12/144:53 pmUVF - ORD
1 stop9h 44mAmerican Airlines
Deal found 12/7$833
This Delta deal was found by Cheapflights users on 12/7. 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.
mié. 12/106:00 amMDW - UVF
1 stop7h 36mDelta
dom. 12/144:56 pmUVF - MDW
1 stop8h 51mDelta
Deal found 12/7$916
This Delta deal was found by Cheapflights users on 12/8. 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.
mié. 12/175:30 amORD - UVF
1 stop8h 06mDelta
sáb. 12/274:53 pmUVF - ORD
1 stop17h 54mDelta
Deal found 12/8$991
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/1011:00 amMDW - UVF
1 stop25h 50mMultiple Airlines
dom. 12/143:40 pmUVF - MDW
2 stops32h 18mMultiple Airlines
Deal found 12/7$1,270
This Delta deal was found by Cheapflights users on 12/8. 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.
jue. 12/186:00 amMDW - UVF
1 stop7h 36mDelta
sáb. 12/273:00 pmUVF - MDW
1 stop9h 22mDelta
Deal found 12/8$1,825
This Mytrip deal was found by Cheapflights users on 12/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/3111:15 amORD - SLU
2 stops23h 55mMultiple Airlines
jue. 1/16:20 pmSLU - ORD
3 stops26h 42mMultiple Airlines
Deal found 12/8$2,144
This American Airlines deal was found by Cheapflights users on 12/10. 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.
lun. 12/294:53 pmSTL - UVF
2 stops19h 59mAmerican Airlines
sáb. 1/31:38 pmUVF - STL
2 stops12h 18mAmerican Airlines
Deal found 12/10$3,082

Find flight deals from Illinois to Saint Lucia

Keep the following information in mind while searching for Illinois to Saint Lucia flight deals. Data was last updated diciembre 10, 2025.

Round-trip from

$489
(American Airlines)

One-way from

$256
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$1,703

Good round-trip deal

$771 or less

Good one-way deal

$443 or less
From Illinois to Saint Lucia
Search Deals
One-way flight from Illinois to Saint Lucia
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Highest demand for flights based on searches. 33% potential increase in price ($414 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($88 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Illinois to Saint Lucia.
Search Deals
Price to beat on a one-way flight from Illinois to Saint Lucia.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 diciembre 10, 2025.
Use the filters below to find and compare flights from Illinois to Saint Lucia that are best for you.

Fly from

Illinois

Fly to

Saint Lucia

Route

Depart

Return

Price

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

sáb. 1/24

7:56 pm-3:03 pm

1 stop17h 07m

Castries Hewanorra

mar. 2/3

5:02 pm-9:05 am

1 stop18h 03m

$489

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

lun. 2/9

7:56 pm-3:03 pm

1 stop17h 07m

Castries Hewanorra

vie. 2/13

5:00 pm-12:33 am

1 stop9h 33m

$489

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

dom. 3/1

7:13 pm-4:00 pm

1 stop18h 47m

Castries Hewanorra

jue. 3/5

4:25 pm-9:05 am

1 stop18h 40m

$489

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

mar. 3/17

5:40 am-2:04 pm

1 stop7h 24m

Castries Hewanorra

mié. 3/25

3:24 pm-8:57 am

2 stops18h 33m

$494

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

sáb. 1/10

9:10 pm-3:03 pm

2 stops15h 53m

Castries Hewanorra

vie. 1/16

5:02 pm-7:22 am

2 stops16h 20m

$494

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

lun. 2/2

9:10 pm-3:03 pm

2 stops15h 53m

Castries Hewanorra

vie. 2/6

5:02 pm-8:32 am

2 stops17h 30m

$494

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

sáb. 1/31

7:56 pm-3:03 pm

1 stop17h 07m

Castries Hewanorra

sáb. 2/7

5:02 pm-9:05 am

1 stop18h 03m

$519

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

lun. 1/19

5:00 am-4:02 pm

1 stop9h 02m

Castries Hewanorra

lun. 1/26

2:46 pm-11:08 pm

1 stop10h 22m

$519

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

vie. 1/23

7:30 pm-2:10 pm

1 stop16h 40m

Castries Hewanorra

vie. 1/30

5:02 pm-9:01 am

2 stops17h 59m

$524

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

mar. 2/3

4:05 pm-4:20 pm

1 stop22h 15m

Castries Hewanorra

mié. 2/11

5:15 pm-3:29 pm

1 stop24h 14m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 40 results
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Best time to book a flight from Illinois to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Illinois with our price prediction graph.
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 Illinois to Saint Lucia

What is the cheapest month to book a flight from Illinois to Saint Lucia?

Currently, August is the cheapest month in which you can book a flight from Illinois to Saint Lucia (average of $535). Flying from Illinois to Saint Lucia in December is currently the most expensive (average of $675). 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.

What is the cheapest time of day to fly from IL to LC?

Find hourly flight availability from Illinois to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 10, 2025.

It’s optimal to fly from Illinois to Saint Lucia at noon. By choosing this option you can save up to 58% on the cost of your flight, compared to a flight in the evening.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Saint Lucia?

    Airlines like American Airlines, Delta, and Air Canada fly from Illinois to Saint Lucia in about 7h 24m. The time it takes to get you to your destination can typically vary by up to 14h 51m. The distance between Illinois and Saint Lucia is about 2529 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Illinois to Saint Lucia that include hotel bookings?

    Yes. In addition to deals on Illinois to Saint Lucia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Saint Lucia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Saint Lucia.

  • Can I find deals for business class flights from Illinois to Saint Lucia?

    Yes. Cheapflights offers flight deals from Illinois to Saint Lucia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Saint Lucia?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Saint Lucia (average of $535). Flying from Illinois to Saint Lucia in December is currently the most expensive (average of $675). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Illinois to Saint Lucia

Discover the top 3 airlines that operate flights from Illinois 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 diciembre 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$443Average$703FlexibilityNo cancel feeOn-time71%
DeltaCheapest$555Average$766FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$570Average$912FlexibilityNo cancel feeOn-time69%

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