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

Air Canada, United Airlines, and Delta are the most popular carriers operating from Chicago 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 Chicago according to our data. American Airlines is the first choice among our users, with 57% 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.

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

Prices for flights from Chicago to Saint Lucia refresh daily.

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

The number of operators available for flights from Chicago to Saint Lucia is 3 as of September 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago 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.

$154 Cheap Flights from Chicago to Saint Lucia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Saint Lucia

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:21 pm - 2:15 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

18h 54m2 stops Ottawa Toronto Pearson Intl

4:40 pm - 1:13 pmUVF Castries Hewanorra-ORD Chicago O'Hare Intl

21h 33m1 stop Toronto Pearson Intl

$426Air Canada

Thu, Oct 8 - Fri, Oct 30

8:40 pm - 4:40 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

18h 00m1 stop Toronto Pearson Intl

5:40 pm - 1:13 pmUVF Castries Hewanorra-ORD Chicago O'Hare Intl

21h 33m1 stop Toronto Pearson Intl

$428Air Canada

Thu, Nov 12 - Mon, Nov 16

8:40 pm - 4:40 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

18h 00m1 stop Toronto Pearson Intl

5:40 pm - 1:13 pmUVF Castries Hewanorra-ORD Chicago O'Hare Intl

21h 33m1 stop Toronto Pearson Intl

$428Air Canada

Thu, Nov 12 - Mon, Nov 16

7:29 pm - 1:42 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

17h 13m1 stop Miami

4:04 pm - 9:30 amUVF Castries Hewanorra-ORD Chicago O'Hare Intl

18h 26m1 stop Miami

$556American Airlines

Sun, Oct 18 - Wed, Oct 21

6:40 pm - 2:20 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

18h 40m1 stop Charlotte Douglas

4:04 pm - 9:30 amUVF Castries Hewanorra-ORD Chicago O'Hare Intl

18h 26m1 stop Miami

$556American Airlines

Sat, Oct 17 - Wed, Oct 21

6:40 pm - 2:20 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

18h 40m1 stop Charlotte Douglas

4:04 pm - 9:30 amUVF Castries Hewanorra-ORD Chicago O'Hare Intl

18h 26m1 stop Miami

$556American Airlines

Sat, Oct 17 - Wed, Oct 21

8:52 am - 4:25 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

5h 33mnonstop

1:52 pm - 6:15 pmUVF Castries Hewanorra-ORD Chicago O'Hare Intl

6h 23mnonstop

$674United Airlines

Sat, Dec 5 - Sat, Dec 12

8:52 am - 4:25 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

5h 33mnonstop

1:52 pm - 6:15 pmUVF Castries Hewanorra-ORD Chicago O'Hare Intl

6h 23mnonstop

$674United Airlines

Sat, Dec 5 - Sat, Dec 12

5:30 am - 3:05 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

7h 35m1 stop Atlanta Hartsfield-Jackson

4:25 pm - 8:34 amUVF Castries Hewanorra-ORD Chicago O'Hare Intl

18h 09m1 stop Atlanta Hartsfield-Jackson

$688Delta

Tue, Feb 16 - Tue, Feb 23

5:30 am - 3:05 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

7h 35m1 stop Atlanta Hartsfield-Jackson

4:25 pm - 8:34 amUVF Castries Hewanorra-ORD Chicago O'Hare Intl

18h 09m1 stop Atlanta Hartsfield-Jackson

$688Delta

Fri, Jan 8 - Thu, Jan 14

Cheap last minute flights

Enter your travel dates to find the best prices.

6:05 am - 2:12 pmMDW Chicago Midway-UVF Castries Hewanorra

7h 07m1 stop Atlanta Hartsfield-Jackson

3:32 pm - 10:44 pmUVF Castries Hewanorra-MDW Chicago Midway

8h 12m1 stop Atlanta Hartsfield-Jackson

$958Delta

Wed, Sep 9 - Mon, Sep 14

5:30 am - 2:12 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

7h 42m1 stop Atlanta Hartsfield-Jackson

3:32 pm - 11:59 pmUVF Castries Hewanorra-ORD Chicago O'Hare Intl

9h 27m1 stop Atlanta Hartsfield-Jackson

$958Delta

Wed, Sep 9 - Mon, Sep 14

6:05 am - 2:12 pmMDW Chicago Midway-UVF Castries Hewanorra

7h 07m1 stop Atlanta Hartsfield-Jackson

3:32 pm - 10:44 pmUVF Castries Hewanorra-MDW Chicago Midway

8h 12m1 stop Atlanta Hartsfield-Jackson

$983Delta

Wed, Sep 9 - Mon, Sep 14

5:30 am - 2:12 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

7h 42m1 stop Atlanta Hartsfield-Jackson

3:32 pm - 11:59 pmUVF Castries Hewanorra-ORD Chicago O'Hare Intl

9h 27m1 stop Atlanta Hartsfield-Jackson

$983Delta

Wed, Sep 9 - Mon, Sep 14

9:01 pm - 2:02 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

16h 01m2 stops Charlotte Douglas Miami

3:02 pm - 7:48 amUVF Castries Hewanorra-ORD Chicago O'Hare Intl

17h 46m1 stop Miami

$1,018American Airlines

Wed, Sep 9 - Mon, Sep 14

8:55 pm - 2:02 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

16h 07m2 stops Washington, D.C. Reagan-National Miami

3:02 pm - 7:53 amUVF Castries Hewanorra-ORD Chicago O'Hare Intl

17h 51m2 stops Miami New York LaGuardia

$1,018American Airlines

Wed, Sep 9 - Mon, Sep 14

5:00 am - 3:12 pmORD Chicago O'Hare Intl-UVF Castries Hewanorra

9h 12m1 stop Miami

3:02 pm - 7:48 amUVF Castries Hewanorra-ORD Chicago O'Hare Intl

17h 46m1 stop Miami

$1,088American Airlines

Mon, Sep 7 - Wed, Sep 9

2:15 pm - 4:05 pmORD Chicago O'Hare Intl-SLU Castries George F. L. Charle

24h 50m2 stops Toronto Pearson Intl Port of Spain Piarco Intl

12:35 pm - 9:00 amSLU Castries George F. L. Charle-ORD Chicago O'Hare Intl

21h 25m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

$1,161Multiple Airlines

Tue, Sep 8 - Wed, Sep 16

5:53 pm - 12:05 pmORD Chicago O'Hare Intl-SLU Castries George F. L. Charle

41h 12m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

3:45 pm - 1:23 pmSLU Castries George F. L. Charle-ORD Chicago O'Hare Intl

46h 38m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

$1,267Multiple Airlines

Tue, Sep 8 - Thu, Sep 17

3:45 pm - 4:05 pmORD Chicago O'Hare Intl-SLU Castries George F. L. Charle

23h 20m2 stops Toronto Pearson Intl Port of Spain Piarco Intl

12:35 pm - 8:12 pmSLU Castries George F. L. Charle-ORD Chicago O'Hare Intl

32h 37m3 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,536Multiple Airlines

Tue, Sep 8 - Thu, Sep 17

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Air Canada flights from Chicago to Saint Lucia

Our best Air Canada deals on Chicago to Saint Lucia flight tickets

Air Canada

Oct 8

ORD6:21 pmChicago O'Hare Intl

18h 54m

2 stops

UVF2:15 pmCastries Hewanorra

Oct 30

UVF4:40 pmCastries Hewanorra

21h 33m

1 stop

ORD1:13 pmChicago O'Hare Intl

$426

Air Canada

Nov 12

ORD8:40 pmChicago O'Hare Intl

18h 00m

1 stop

UVF4:40 pmCastries Hewanorra

Nov 16

UVF5:40 pmCastries Hewanorra

21h 33m

1 stop

ORD1:13 pmChicago O'Hare Intl

$428

Air Canada

Oct 8

ORD6:21 pmChicago O'Hare Intl

18h 54m

2 stops

UVF2:15 pmCastries Hewanorra

Oct 30

UVF4:40 pmCastries Hewanorra

21h 33m

1 stop

ORD1:13 pmChicago O'Hare Intl

$429

American Airlines flights from Chicago to Saint Lucia

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

American Airlines

Oct 17

ORD6:40 pmChicago O'Hare Intl

18h 40m

1 stop

UVF2:20 pmCastries Hewanorra

Oct 21

UVF4:04 pmCastries Hewanorra

18h 26m

1 stop

ORD9:30 amChicago O'Hare Intl

$556

American Airlines

Oct 17

ORD6:40 pmChicago O'Hare Intl

18h 40m

1 stop

UVF2:20 pmCastries Hewanorra

Oct 21

UVF4:04 pmCastries Hewanorra

16h 21m

2 stops

ORD7:25 amChicago O'Hare Intl

$561

American Airlines

Nov 28

ORD5:00 amChicago O'Hare Intl

8h 19m

1 stop

UVF3:19 pmCastries Hewanorra

Dec 5

UVF2:32 pmCastries Hewanorra

11h 24m

1 stop

ORD11:56 pmChicago O'Hare Intl

$596

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Thu 10/8

6:21 pm-2:15 pm

2 stops18h 54m

Castries Hewanorra

Fri 10/30

4:40 pm-1:13 pm

1 stop21h 33m

$426

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Thu 11/12

8:40 pm-4:40 pm

1 stop18h 00m

Castries Hewanorra

Mon 11/16

5:40 pm-1:13 pm

1 stop21h 33m

$428

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Thu 11/12

8:40 pm-4:40 pm

1 stop18h 00m

Castries Hewanorra

Mon 11/16

5:40 pm-1:13 pm

1 stop21h 33m

$428

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Sun 10/18

7:29 pm-1:42 pm

1 stop17h 13m

Castries Hewanorra

Wed 10/21

4:04 pm-9:30 am

1 stop18h 26m

$556

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Sat 10/17

6:40 pm-2:20 pm

1 stop18h 40m

Castries Hewanorra

Wed 10/21

4:04 pm-9:30 am

1 stop18h 26m

$556

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Sat 10/17

6:40 pm-2:20 pm

1 stop18h 40m

Castries Hewanorra

Wed 10/21

4:04 pm-9:30 am

1 stop18h 26m

$556

Quickest round-trip

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Sat 12/5

8:52 am-4:25 pm

Nonstop5h 33m

Castries Hewanorra

Sat 12/12

1:52 pm-6:15 pm

Nonstop6h 23m

$674

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Sat 12/5

8:52 am-4:25 pm

Nonstop5h 33m

Castries Hewanorra

Sat 12/12

1:52 pm-6:15 pm

Nonstop6h 23m

$674

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Tue 2/16

5:30 am-3:05 pm

1 stop7h 35m

Castries Hewanorra

Tue 2/23

4:25 pm-8:34 am

1 stop18h 09m

$688

ChicagoCastries

ORD Chicago O'Hare Intl - UVF Castries Hewanorra

ORDUVF

Chicago O'Hare Intl

Fri 1/8

5:30 am-3:05 pm

1 stop7h 35m

Castries Hewanorra

Thu 1/14

4:25 pm-8:34 am

1 stop18h 09m

$688

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 Chicago 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

What is the cheapest month to fly to Saint Lucia?

The month of January is, on average, the cheapest month to fly to Saint Lucia from Chicago, with most prices found around $742. If you aren’t able to travel to Saint Lucia during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $798.

What is the cheapest Chicago to Saint Lucia flight route?

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

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

There are 2 cabin classes available to choose from on Chicago 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 Chicago to Saint Lucia flights?

You could potentially save up to 14% on your flight if you consider stops on a Chicago to Saint Lucia flight.

Cheap Chicago to Saint Lucia flight deals and tips

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

Best Price Found	$154
Fastest flight time	5h 33m
Direct flights	Sun
Airports in Saint Lucia	7 airports

The best one-way flight to Saint Lucia from Chicago in the past 72 hours is $154. The best round-trip flight deal from Chicago to Saint Lucia found on momondo in the last 72 hours is $426.

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

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

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

Search flight deals

Frequently asked questions about flying from Chicago to Saint Lucia

When did momondo last update prices for flights from Chicago to Saint Lucia?
Prices for flights from Chicago to Saint Lucia refresh daily.
How many operators does momondo search for flights from Chicago to Saint Lucia?
The number of operators available for flights from Chicago to Saint Lucia is 3 as of September 2026.
How old do you have to be to fly from Chicago to Saint Lucia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago 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 Chicago to Saint Lucia?
Based on momondo bookings for flights between Chicago and Saint Lucia, the leading plane model is Boeing 737-700, making up 92.59% of the total bookings. Other popular models include Airbus A321-100/200 with 3.70% and Airbus A320-100/200 with 3.70%.

Best airlines flying from Chicago to Saint Lucia

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $552	Free Cancellation	Rating 7.1 12,044 reviews	Search American Airlines flights
Delta	PriceFrom $565	Free Cancellation	Rating 7.8 8,573 reviews	Search Delta flights
United Airlines	PriceFrom $621	Free Cancellation	Rating 7.4 10,171 reviews	Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Saint Lucia. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo provides multiple filters to help you find the best flight to Saint Lucia from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Chicago to Saint Lucia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Saint Lucia trip

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Flights to Castriesfrom $602

Cheap flights from Chicago to Saint Lucia from $154

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Saint Lucia departing on 12/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from Chicago to Saint Lucia

Our best Air Canada deals on Chicago to Saint Lucia flight tickets

American Airlines flights from Chicago to Saint Lucia

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

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See travel insights to Saint Lucia from

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

What is the cheapest month to fly to Saint Lucia?

What is the cheapest Chicago to Saint Lucia flight route?

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

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

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

What airlines fly to Saint Lucia?

Cheap Chicago to Saint Lucia flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Saint Lucia

Frequently asked questions about flying from Chicago to Saint Lucia

Best airlines flying from Chicago to Saint Lucia

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

Why use momondo?

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

Chicago flight routes

According to popular flight searches on momondo this year

Saint Lucia flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Saint Lucia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Saint Lucia

List of cabin classes available on flights landing in Saint Lucia. Availability may vary depending on flight origin and airline.

Complete your trip to Saint Lucia

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According to popular flight searches on momondo this year