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Saint Lucia

$166+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — UVF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$408
(Air Canada)

One-way from

$166
(Travelocity)

Popular in

August

Cheapest in

January

Average price

$608
From Illinois to Saint Lucia
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One-way flight from Illinois to Saint Lucia
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Highest demand for flights based on searches. 6% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:25 pmORD - UVF
1 stop16h 50mAir Canada
Fri 10/103:10 pmUVF - ORD
1 stop27h 23mAir Canada
Deal found 9/8$404
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:25 pmORD - UVF
1 stop16h 50mAir Canada
Fri 9/193:10 pmUVF - ORD
2 stops19h 41mAir Canada
Deal found 9/10$408
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:05 pmORD - UVF
2 stops44h 20mAir Canada
Wed 12/35:15 pmUVF - ORD
1 stop18h 45mAir Canada
Deal found 9/10$428
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:05 pmORD - UVF
2 stops44h 20mAir Canada
Fri 12/55:15 pmUVF - ORD
1 stop23h 55mAir Canada
Deal found 9/10$470
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/258:34 amORD - UVF
1 stop28h 23mJetBlue
Wed 10/293:56 pmUVF - ORD
1 stop29h 56mJetBlue
Deal found 9/10$472
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/298:25 pmORD - UVF
1 stop16h 50mAir Canada
Fri 10/33:10 pmUVF - ORD
1 stop18h 59mAir Canada
Deal found 9/10$483
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:45 amORD - UVF
1 stop30h 12mJetBlue
Thu 11/64:57 pmUVF - ORD
1 stop29h 55mJetBlue
Deal found 9/10$488
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:45 amORD - UVF
1 stop30h 12mJetBlue
Fri 10/313:56 pmUVF - ORD
1 stop29h 56mJetBlue
Deal found 9/10$496
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 11/256:45 pmSTL - UVF
1 stop18h 15mAmerican Airlines
Tue 12/24:05 pmUVF - STL
1 stop9h 02mAmerican Airlines
Deal found 9/10$625
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/254:34 pmSTL - UVF
2 stops20h 22mAmerican Airlines
Sat 11/12:50 pmUVF - STL
2 stops21h 49mAmerican Airlines
Deal found 9/10$626
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 10/265:00 amPIA - UVF
1 stop7h 40mAmerican Airlines
Sat 11/12:50 pmUVF - PIA
2 stops21h 25mAmerican Airlines
Deal found 9/10$656
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 10/266:32 pmMLI - UVF
2 stops19h 28mAmerican Airlines
Sat 11/12:50 pmUVF - MLI
2 stops26h 11mAmerican Airlines
Deal found 9/10$656

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 September 11, 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

Mon 10/6

9:12 pm-2:15 pm

1 stop16h 03m

Castries Hewanorra

Fri 10/10

3:10 pm-6:54 pm

2 stops28h 44m

$418

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 9/29

10:50 am-2:15 pm

2 stops26h 25m

Castries Hewanorra

Fri 10/3

3:10 pm-8:00 am

2 stops41h 50m

$493

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Thu 10/2

6:10 am-2:15 pm

3 stops31h 05m

Castries Hewanorra

Tue 10/7

3:10 pm-9:09 am

1 stop18h 59m

$513

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sun 10/26

10:00 am-3:25 pm

1 stop28h 25m

Castries Hewanorra

Thu 10/30

2:40 pm-6:38 pm

2 stops28h 58m

$553

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sun 11/16

5:32 am-3:39 pm

1 stop8h 07m

Castries Hewanorra

Thu 11/20

4:59 pm-12:02 am

1 stop9h 03m

$575

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sun 11/2

9:02 pm-1:19 pm

2 stops14h 17m

Castries Hewanorra

Fri 11/7

4:05 pm-9:05 am

1 stop19h 00m

$580

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 11/17

5:00 am-3:04 pm

1 stop8h 04m

Castries Hewanorra

Tue 11/25

4:52 pm-7:21 am

2 stops16h 29m

$580

PeoriaCastries

PIA - UVF

PIAUVF

Greater Peoria

Wed 1/14

3:41 pm-3:50 pm

2 stops22h 09m

Castries Hewanorra

Wed 1/21

4:50 pm-3:45 pm

2 stops24h 55m

$621

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Tue 11/25

6:45 pm-3:00 pm

1 stop18h 15m

Castries Hewanorra

Tue 12/2

4:05 pm-11:07 pm

1 stop9h 02m

$625

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sat 10/25

9:14 am-1:40 pm

1 stop27h 26m

Castries Hewanorra

Sat 11/1

2:50 pm-11:39 am

2 stops21h 49m

$634

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 42 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, January is the cheapest month in which you can book a flight from Illinois to Saint Lucia (average of $556). Flying from Illinois to Saint Lucia in December is currently the most expensive (average of $730). 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 September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Saint Lucia as you normally would.

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 Air Canada, American Airlines, and Delta fly from Illinois to Saint Lucia in about 7h 39m. The time it takes to get you to your destination can typically vary by up to 14h 30m. The distance between Illinois and Saint Lucia is about 2514 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Saint Lucia one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $166. WestJet flights start at $297 while deals on American Airlines start at $323 one-way.

  • 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, January is the cheapest month in which you can book a flight from Illinois to Saint Lucia (average of $556). Flying from Illinois to Saint Lucia in December is currently the most expensive (average of $730). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$443Average$690FlexibilityNo cancel feeOn-time71%
DeltaCheapest$555Average$734FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$558Average$865FlexibilityNo cancel feeOn-time69%

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