HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Saint Lucia

$293+ Cheap flights from Chicago (CHI) 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — UVF
Oct 30 — Nov 61
Thu 10/30
Thu 11/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago 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 Chicago to Saint Lucia

Keep the following information in mind while searching for Chicago to Saint Lucia flight deals. Data was last updated September 30, 2025.

Round-trip from

$423
(Priceline)

One-way from

$318
(Delta)

Popular in

July

Cheapest in

September

Average price

$608
From Chicago (CHI) to Saint Lucia
Search Deals
One-way flight from Chicago (CHI) to Saint Lucia
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Chicago to Saint Lucia

Cheapest flights from Chicago to Saint Lucia
Explore the most affordable flight options available from Chicago to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 30, 2025.

This Priceline deal was found by Cheapflights users on 9/28. 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.
Sun 10/268:00 amORD - UVF
1 stop30h 25mAir Canada
Sun 11/25:15 pmUVF - ORD
2 stops28h 45mAir Canada
Deal found 9/28$423
This FlightHub deal was found by Cheapflights users on 9/28. 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 10/66:01 pmORD - UVF
1 stop19h 14mAir Canada
Fri 10/103:10 pmUVF - ORD
1 stop28h 12mAir Canada
Deal found 9/28$426
This Priceline deal was found by Cheapflights users on 9/29. 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.
Sat 11/156:45 amORD - UVF
1 stop30h 12mJetBlue
Sat 11/226:24 pmUVF - ORD
1 stop30h 22mJetBlue
Deal found 9/29$452
This Priceline deal was found by Cheapflights users on 9/29. 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.
Sun 11/166:45 amORD - UVF
1 stop30h 12mJetBlue
Thu 11/205:01 pmUVF - ORD
1 stop31h 35mJetBlue
Deal found 9/29$453
This Expedia deal was found by Cheapflights users on 9/29. 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.
Fri 11/76:45 amORD - UVF
1 stop27h 49mJetBlue
Wed 11/124:57 pmUVF - ORD
2 stops19h 38mJetBlue
Deal found 9/29$463
This Priceline deal was found by Cheapflights users on 9/30. 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.
Fri 11/146:55 pmORD - UVF
1 stop17h 27mJetBlue
Fri 11/215:01 pmUVF - ORD
1 stop31h 20mJetBlue
Deal found 9/30$467
This Expedia deal was found by Cheapflights users on 9/28. 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.
Fri 11/146:55 pmORD - UVF
1 stop17h 27mJetBlue
Mon 11/174:57 pmUVF - ORD
1 stop29h 55mJetBlue
Deal found 9/28$476
This Expedia deal was found by Cheapflights users on 9/28. 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 10/188:34 amORD - UVF
1 stop28h 46mJetBlue
Wed 10/223:19 pmUVF - ORD
2 stops19h 03mJetBlue
Deal found 9/28$480
This Expedia deal was found by Cheapflights users on 9/27. 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 10/276:45 amORD - UVF
1 stop30h 12mJetBlue
Mon 11/34:57 pmUVF - ORD
1 stop29h 55mJetBlue
Deal found 9/27$487
This Delta deal was found by Cheapflights users on 9/29. 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 11/166:00 amMDW - UVF
1 stop7h 39mDelta
Thu 11/204:59 pmUVF - MDW
1 stop8h 41mDelta
Deal found 9/29$625
This Delta deal was found by Cheapflights users on 9/28. 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 11/186:00 amMDW - UVF
1 stop7h 39mDelta
Fri 11/214:59 pmUVF - MDW
1 stop8h 41mDelta
Deal found 9/28$675
This Kiwi.com deal was found by Cheapflights users on 9/29. 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.
Wed 11/511:00 amMDW - UVF
1 stop25h 50mMultiple Airlines
Tue 11/113:40 pmUVF - MDW
1 stop20h 25mMultiple Airlines
Deal found 9/29$715

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 30, 2025.
Use the filters below to find and compare flights from Chicago to Saint Lucia that are best for you.

Fly from

Chicago

Fly to

Saint Lucia

Route

Depart

Return

Price

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sun 10/26

6:05 pm-3:25 pm

2 stops20h 20m

Castries Hewanorra

Sun 11/2

5:15 pm-11:18 am

2 stops44h 03m

$423

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 10/6

6:01 pm-2:15 pm

1 stop19h 14m

Castries Hewanorra

Fri 10/10

3:10 pm-5:33 pm

1 stop27h 23m

$426

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sat 11/15

6:45 am-2:57 pm

1 stop30h 12m

Castries Hewanorra

Sat 11/22

6:24 pm-10:46 pm

1 stop30h 22m

$435

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sat 10/18

8:34 am-2:20 pm

1 stop28h 46m

Castries Hewanorra

Wed 10/22

3:19 pm-12:23 pm

1 stop22h 04m

$488

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Thu 11/20

1:43 pm-3:41 pm

1 stop23h 58m

Castries Hewanorra

Sun 11/23

5:01 pm-10:50 pm

1 stop31h 49m

$558

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 10/27

6:45 am-1:57 pm

1 stop30h 12m

Castries Hewanorra

Mon 11/3

4:57 pm-8:52 pm

1 stop29h 55m

$558

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sun 11/30

12:19 am-3:52 pm

1 stop13h 33m

Castries Hewanorra

Fri 12/5

4:00 pm-11:39 pm

1 stop9h 39m

$565

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sat 12/6

7:07 pm-3:53 pm

1 stop18h 46m

Castries Hewanorra

Fri 12/12

4:00 pm-9:08 am

1 stop19h 08m

$565

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 11/17

5:00 am-3:52 pm

1 stop8h 52m

Castries Hewanorra

Tue 11/25

4:52 pm-7:04 am

2 stops16h 12m

$570

ChicagoCastries

MDW - UVF

MDWUVF

Chicago Midway

Tue 11/18

6:00 am-3:39 pm

1 stop7h 39m

Castries Hewanorra

Fri 11/21

4:59 pm-11:40 pm

1 stop8h 41m

$675

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/30

Showing 1-10 of 32 results
1
2
3
4

Best time to book a flight from Chicago to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Chicago 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 Chicago to Saint Lucia

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Saint Lucia (average of $556). Flying from Chicago 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 CHI to LC?

Find hourly flight availability from Chicago 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 30, 2025.

When flying from Chicago to Saint Lucia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 30, 2025.
Read through reviews of airlines operating flights from Chicago to Saint Lucia, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,931 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago to Saint Lucia?

    Airlines like Air Canada, JetBlue, and Delta fly from Chicago to Saint Lucia in about 7h 39m. The time it takes to get you to your destination can typically vary by up to 22h 33m. Chicago and Saint Lucia are separated by a distance of 2514 mi. This flight may include one or multiple stops.

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

    $293 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and WestJet, with prices starting from $488 and $1,818, respectively.

  • What are the most popular routes from Chicago to Saint Lucia?

    When deciding which route to take from Chicago to Saint Lucia consider Chicago O'Hare Intl - Castries Hewanorra, Chicago Midway - Castries Hewanorra or Chicago O'Hare Intl - Castries George F. L. Charle as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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 Chicago to Saint Lucia?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Saint Lucia (average of $556). Flying from Chicago 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Luis Munoz Marin Intl flights
Midway to Luis Munoz Marin Intl flights
O'Hare Intl to Montego Bay flights
O'Hare Intl to Punta Cana flights
O'Hare Intl to Oranjestad flights
O'Hare Intl to Saint Thomas Island flights
O'Hare Intl to Nassau flights
O'Hare Intl to Providenciales flights
Midway to Punta Cana flights
St. Louis to Luis Munoz Marin Intl flights
Midway to Montego Bay flights
O'Hare Intl to Simpson Bay flights
O'Hare Intl to George Town flights
Midway to Oranjestad flights
O'Hare Intl to Castries flights
O'Hare Intl to Willemstad flights
St. Louis to Punta Cana flights
O'Hare Intl to Santo Domingo flights
Midway to Nassau flights
Midway to Saint Thomas Island flights
St. Louis to Montego Bay flights
St. Louis to Saint Thomas Island flights
O'Hare Intl to Puerto Plata flights
O'Hare Intl to St. John's flights
St. Louis to Oranjestad flights
Midway to Providenciales flights
O'Hare Intl to Bridgetown flights
Midway to George Town flights
Midway to Simpson Bay flights
O'Hare Intl to Road Town flights
O'Hare Intl to Christiansted flights
Midway to Santo Domingo flights
O'Hare Intl to Kingston flights
St. Louis to Georgetown flights
St. Louis to Willemstad flights
O'Hare Intl to Kralendijk flights
St. Louis to Simpson Bay flights
St. Louis to Nassau flights
O'Hare Intl to Port of Spain flights
Midway to Castries flights
O'Hare Intl to Freeport flights
O'Hare Intl to Santiago de los Caballeros flights
Peoria to Luis Munoz Marin Intl flights
Moline to Luis Munoz Marin Intl flights
O'Hare Intl to Basseterre flights
O'Hare Intl to Georgetown flights
O'Hare Intl to Aguadilla flights
St. Louis to Santo Domingo flights
St. Louis to Providenciales flights
O'Hare Intl to Ponce flights

Top 3 airlines flying from Chicago to Saint Lucia

Discover the top 3 airlines that operate flights from Chicago 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$555Average$740FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$558Average$854FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$565Average$788FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.