What is the cheapest airline that flies from Illinois to Saint Lucia?

Air Canada, Delta, and American Airlines are the most popular carriers operating from Illinois to Saint Lucia

What airlines fly to Saint Lucia?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Saint Lucia from Illinois according to our data. American Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Saint Lucia. Keep in mind that there are 3 different airlines that fly to Saint Lucia on a routine basis, so you have a few additional options to choose from.

How long is the flight from Illinois to Saint Lucia?

The flight from Illinois to Saint Lucia depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to Castries (the most popular airport in Saint Lucia), then the flight time is 6h 19m on average. If you fly from Moline (another popular airport in Illinois) to Castries, then the average flight time is 19h 39m.

When did momondo last update prices for flights from Illinois to Saint Lucia?

Prices for flights from Illinois to Saint Lucia were last updated today.

How many operators does momondo search for flights from Illinois to Saint Lucia?

As of December 2025, there are 3 operators available to choose from for flights from Illinois to Saint Lucia.

How old do you have to be to fly from Illinois to Saint Lucia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Saint Lucia.

What documentation or ID do you need to fly to Saint Lucia?

The travel and health documents you'll need for your trip to Saint Lucia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$182 Cheap Flights from Illinois to Saint Lucia in 2025/26

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Find the cheapest flights from Illinois to Saint Lucia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:40 am - 3:43 pm

ORD

UVF

28h 03m1 stop

5:21 pm - 7:36 pm

UVF

ORD

28h 15m1 stop

$486JetBlue

Mon, Jan 26 - Mon, Feb 2

7:56 pm - 3:03 pm

ORD

UVF

17h 07m1 stop

5:02 pm - 12:30 am

UVF

ORD

9h 28m1 stop

$489American Airlines

Sat, Jan 24 - Tue, Feb 3

7:48 pm - 1:46 pm

ORD

UVF

15h 58m2 stops

5:02 pm - 7:22 am

UVF

ORD

16h 20m2 stops

$494American Airlines

Sat, Jan 24 - Tue, Feb 3

6:04 am - 4:00 pm

ORD

UVF

7h 56m1 stop

5:23 pm - 11:48 am

UVF

ORD

20h 25m1 stop

$517JetBlue

Wed, Feb 25 - Mon, Mar 2

5:00 am - 4:02 pm

ORD

UVF

9h 02m1 stop

5:02 pm - 12:30 am

UVF

ORD

9h 28m1 stop

$519American Airlines

Mon, Jan 19 - Mon, Jan 26

4:05 pm - 4:25 pm

STL

UVF

22h 20m1 stop

5:15 pm - 3:29 pm

UVF

STL

24h 14m1 stop

$552Air Canada

Sun, Feb 1 - Wed, Feb 11

6:57 pm - 3:05 pm

STL

UVF

18h 08m1 stop

4:25 pm - 11:37 pm

UVF

STL

9h 12m1 stop

$575Delta

Mon, Feb 2 - Wed, Feb 11

6:00 am - 3:05 pm

MDW

UVF

7h 05m1 stop

4:25 pm - 12:46 pm

UVF

MDW

22h 21m2 stops

$1,021Delta

Sat, Feb 21 - Mon, Mar 2

2:03 pm - 1:46 pm

MDW

UVF

22h 43m2 stops

2:50 pm - 5:55 pm

UVF

MDW

28h 05m2 stops

$3,452WestJet

Wed, Mar 25 - Thu, Apr 2

6:30 pm - 2:50 pm

MDW

UVF

42h 20m2 stops

3:40 pm - 5:55 pm

UVF

MDW

28h 15m2 stops

$3,566WestJet

Sun, Jan 11 - Sun, Jan 18

JetBlue flights from Illinois to Saint Lucia

Our best JetBlue deals on Illinois to Saint Lucia flight tickets

JetBlue

Jan 26

ORD9:40 amChicago O'Hare Intl

28h 03m

1 stop

UVF3:43 pmCastries Hewanorra

Feb 2

UVF5:21 pmCastries Hewanorra

28h 15m

1 stop

ORD7:36 pmChicago O'Hare Intl

$486

Find similar

JetBlue

Feb 25

ORD6:04 amChicago O'Hare Intl

7h 56m

1 stop

UVF4:00 pmCastries Hewanorra

Mar 2

UVF5:23 pmCastries Hewanorra

20h 25m

1 stop

ORD11:48 amChicago O'Hare Intl

$517

Find similar

American Airlines flights from Illinois to Saint Lucia

Our best American Airlines deals on Illinois to Saint Lucia flight tickets

American Airlines

Jan 24

ORD7:30 pmChicago O'Hare Intl

18h 32m

1 stop

UVF4:02 pmCastries Hewanorra

Feb 3

UVF5:02 pmCastries Hewanorra

9h 28m

1 stop

ORD12:30 amChicago O'Hare Intl

$489

Find similar

American Airlines

Jan 24

ORD8:50 pmChicago O'Hare Intl

16h 13m

2 stops

UVF3:03 pmCastries Hewanorra

Feb 3

UVF5:02 pmCastries Hewanorra

18h 03m

2 stops

ORD9:05 amChicago O'Hare Intl

$494

Find similar

American Airlines

Jan 19

ORD5:00 amChicago O'Hare Intl

9h 02m

1 stop

UVF4:02 pmCastries Hewanorra

Jan 26

UVF5:02 pmCastries Hewanorra

9h 28m

1 stop

ORD12:30 amChicago O'Hare Intl

$519

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 1/26

9:40 am-3:43 pm

1 stop28h 03m

Castries Hewanorra

Mon 2/2

5:21 pm-7:36 pm

1 stop28h 15m

$486

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sat 1/24

7:56 pm-3:03 pm

1 stop17h 07m

Castries Hewanorra

Tue 2/3

5:02 pm-12:30 am

1 stop9h 28m

$489

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sat 1/24

7:48 pm-1:46 pm

2 stops15h 58m

Castries Hewanorra

Tue 2/3

5:02 pm-7:22 am

2 stops16h 20m

$494

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Wed 2/25

6:04 am-4:00 pm

1 stop7h 56m

Castries Hewanorra

Mon 3/2

5:23 pm-11:48 am

1 stop20h 25m

$517

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 1/19

5:00 am-4:02 pm

1 stop9h 02m

Castries Hewanorra

Mon 1/26

5:02 pm-12:30 am

1 stop9h 28m

$519

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Sun 2/1

4:05 pm-4:25 pm

1 stop22h 20m

Castries Hewanorra

Wed 2/11

5:15 pm-3:29 pm

1 stop24h 14m

$552

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Mon 2/2

6:57 pm-3:05 pm

1 stop18h 08m

Castries Hewanorra

Wed 2/11

4:25 pm-11:37 pm

1 stop9h 12m

$575

ChicagoCastries

MDW - UVF

MDWUVF

Chicago Midway

Sat 2/21

6:00 am-3:05 pm

1 stop7h 05m

Castries Hewanorra

Mon 3/2

4:25 pm-12:46 pm

2 stops22h 21m

$1,021

ChicagoCastries

MDW - UVF

MDWUVF

Chicago Midway

Wed 3/25

2:03 pm-1:46 pm

2 stops22h 43m

Castries Hewanorra

Thu 4/2

2:50 pm-5:55 pm

2 stops28h 05m

$3,452

ChicagoCastries

MDW - UVF

MDWUVF

Chicago Midway

Sun 1/11

6:30 pm-2:50 pm

2 stops42h 20m

Castries Hewanorra

Sun 1/18

3:40 pm-5:55 pm

2 stops28h 15m

$3,566

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Saint Lucia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to Saint Lucia?

Our data shows that Tuesday is the least expensive day to fly to Saint Lucia. Tickets to fly out on this day can be as low as $628. On the other hand, Thursday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,262.

What is the cheapest time of day to depart on your flight to Saint Lucia?

Our data shows that the cheapest Illinois to Saint Lucia flights are usually those with departure times in the afternoon. Our users have found flights to Saint Lucia in the afternoon for as low as $613. Flights in the morning are often more expensive with an average ticket price of $862.

What is the cheapest Illinois to Saint Lucia flight route?

Fly from Chicago O'Hare Intl to Castries Hewanorra for the best Illinois - Saint Lucia flight prices

What cabin class options are available on Illinois to Saint Lucia flights?

There is only 1 cabin class available to choose from on Illinois to Saint Lucia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Saint Lucia flights?

You could potentially save up to 57% on your flight if you consider stops on a Illinois to Saint Lucia flight.

Cheap Illinois to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Saint Lucia

Best Price Found	$443
Fastest flight time	5h 33m
Direct flights	Sun
Airports in Saint Lucia	7 airports

The best one-way flight to Saint Lucia from Illinois in the past 72 hours is $443. The best round-trip flight deal from Illinois to Saint Lucia found on momondo in the last 72 hours is $771.

The fastest flight from Illinois to Saint Lucia takes 5h 33m

Direct flights go from Illinois to Saint Lucia on Sunday. The only airline offering direct flights is United Airlines.

There are 7 airports in Saint Lucia. From Illinois there are direct flights to Castries Hewanorra (UVF).

Search flight deals

When did momondo last update prices for flights from Illinois to Saint Lucia?
Prices for flights from Illinois to Saint Lucia were last updated today.
How many operators does momondo search for flights from Illinois to Saint Lucia?
As of December 2025, there are 3 operators available to choose from for flights from Illinois to Saint Lucia.
How old do you have to be to fly from Illinois to Saint Lucia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The travel and health documents you'll need for your trip to Saint Lucia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to Saint Lucia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Saint Lucia is Boeing 737-700 (100.00% of total bookings).

Best airlines flying from Illinois to Saint Lucia

Compare and see reviews for airlines that fly from Illinois to Saint Lucia with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $443	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
Delta	PriceFrom $555	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
United Airlines	PriceFrom $570	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Saint Lucia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint Lucia from Illinois.

Can I find flights from Illinois to Saint Lucia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Saint Lucia from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to Saint Lucia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Saint Lucia from Illinois.

I’m not ready to book a flight from Illinois to Saint Lucia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to Saint Lucia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint Lucia and let you know when they change.

An easier way to manage your Saint Lucia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Saint Lucia

Flights to Castriesfrom $464

Cheap flights from Illinois to Saint Lucia from $182

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Saint Lucia departing on 12/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Illinois to Saint Lucia

Cheap round-trip flights

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JetBlue flights from Illinois to Saint Lucia

Our best JetBlue deals on Illinois to Saint Lucia flight tickets

American Airlines flights from Illinois to Saint Lucia

Our best American Airlines deals on Illinois to Saint Lucia flight tickets

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Use the filters below to find and compare flights from Illinois to Saint Lucia that are best for you.

See travel insights to Saint Lucia from

How to get the cheapest flight ticket from Illinois to Saint Lucia

What is the cheapest day to depart on your flight to Saint Lucia?

What is the cheapest time of day to depart on your flight to Saint Lucia?

Our data shows that the cheapest Illinois to Saint Lucia flights are usually those with departure times in the afternoon. Our users have found flights to Saint Lucia in the afternoon for as low as $613. Flights in the morning are often more expensive with an average ticket price of $862.

What is the cheapest Illinois to Saint Lucia flight route?

Fly from Chicago O'Hare Intl to Castries Hewanorra for the best Illinois - Saint Lucia flight prices

What cabin class options are available on Illinois to Saint Lucia flights?

There is only 1 cabin class available to choose from on Illinois to Saint Lucia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Saint Lucia flights?

You could potentially save up to 57% on your flight if you consider stops on a Illinois to Saint Lucia flight.

What is the cheapest airline that flies from Illinois to Saint Lucia?

Air Canada, Delta, and American Airlines are the most popular carriers operating from Illinois to Saint Lucia

What airlines fly to Saint Lucia?

How long is the flight from Illinois to Saint Lucia?

Cheap Illinois to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Saint Lucia

Best Price Found

Fastest flight time

Direct flights

Airports in Saint Lucia

When did momondo last update prices for flights from Illinois to Saint Lucia?

How many operators does momondo search for flights from Illinois to Saint Lucia?

How old do you have to be to fly from Illinois to Saint Lucia?

What documentation or ID do you need to fly to Saint Lucia?

What is the most popular plane model from Illinois to Saint Lucia?

Best airlines flying from Illinois to Saint Lucia

Compare and see reviews for airlines that fly from Illinois to Saint Lucia with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Saint Lucia?

Can I find flights from Illinois to Saint Lucia with flexible booking policies on momondo?

How can momondo help me find flights from Illinois to Saint Lucia?

I’m not ready to book a flight from Illinois to Saint Lucia right now. Can momondo alert me if prices change?

An easier way to manage your Saint Lucia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Saint Lucia

Popular cities in Saint Lucia

Popular flights according to clicks in the last 7 days on momondo