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Cheap flights from Illinois to Castries from $147

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 Castries departing on 6/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Illinois to Castries

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:40 pm - 2:10 pm
ORD
-
UVF
16h 30m
1 stop
Air Canada Logo
3:05 pm - 9:00 am
UVF
-
ORD
18h 55m
1 stop
$388Air Canada
Mon, Jul 6 - Fri, Jul 10
Air Canada Logo
8:40 pm - 2:10 pm
ORD
-
UVF
16h 30m
1 stop
Air Canada Logo
3:05 pm - 10:16 am
UVF
-
ORD
20h 11m
2 stops
$392Air Canada
Mon, Jul 6 - Fri, Jul 10
Air Canada Logo
6:22 pm - 2:10 pm
ORD
-
UVF
18h 48m
2 stops
Air Canada Logo
3:05 pm - 10:16 am
UVF
-
ORD
20h 11m
2 stops
$412Air Canada
Thu, Jul 9 - Tue, Jul 14
Delta Logo
6:00 am - 2:12 pm
MDW
-
UVF
7h 12m
1 stop
Delta Logo
3:33 pm - 12:38 pm
UVF
-
MDW
22h 05m
2 stops
$738Delta
Tue, Jul 21 - Sun, Jul 26
American Airlines Logo
11:53 am - 2:20 pm
MLI
-
UVF
25h 27m
2 stops
American Airlines Logo
2:50 pm - 3:50 pm
UVF
-
MLI
26h 00m
2 stops
$770American Airlines
Mon, Jul 20 - Mon, Jul 27
American Airlines Logo
7:00 am - 2:20 pm
MLI
-
UVF
30h 20m
1 stop
American Airlines Logo
2:50 pm - 11:23 am
UVF
-
MLI
21h 33m
2 stops
$780American Airlines
Mon, Jul 20 - Mon, Jul 27
Delta Logo
5:56 am - 2:13 pm
MLI
-
UVF
7h 17m
1 stop
Delta Logo
3:33 pm - 4:37 pm
UVF
-
MLI
26h 04m
1 stop
$1,103Delta
Fri, Jun 19 - Thu, Jun 25
United Airlines Logo
6:30 am - 3:31 pm
MLI
-
UVF
8h 01m
1 stop
United Airlines Logo
12:55 pm - 11:16 pm
UVF
-
MLI
11h 21m
1 stop
$1,119United Airlines
Sat, Jul 18 - Sat, Jul 25
Multiple Airlines Logo
1:18 pm - 2:10 pm
MDW
-
UVF
23h 52m
2 stops
Multiple Airlines Logo
3:05 pm - 9:13 am
UVF
-
MDW
19h 08m
3 stops
$1,161Multiple Airlines
Thu, Jul 9 - Tue, Jul 14
Multiple Airlines Logo
9:19 am - 2:10 pm
MDW
-
UVF
27h 51m
2 stops
Multiple Airlines Logo
2:30 pm - 12:38 pm
UVF
-
MDW
23h 08m
2 stops
$1,221Multiple Airlines
Thu, Jul 23 - Sun, Jul 26

JetBlue flights from Illinois to Castries

Our best JetBlue deals on Illinois to Castries flight tickets
JetBlue
Jul 7
ORD6:00 amChicago O'Hare Intl
8h 11m
1 stop
UVF3:11 pmCastries Hewanorra
Jul 10
UVF4:40 pmCastries Hewanorra
17h 11m
1 stop
ORD8:51 amChicago O'Hare Intl
$584
JetBlue
Aug 19
ORD6:27 pmChicago O'Hare Intl
17h 26m
1 stop
UVF12:53 pmCastries Hewanorra
Aug 26
UVF4:11 pmCastries Hewanorra
17h 37m
1 stop
ORD8:48 amChicago O'Hare Intl
$593
JetBlue
Aug 21
ORD6:00 amChicago O'Hare Intl
8h 06m
1 stop
UVF3:06 pmCastries Hewanorra
Aug 25
UVF4:11 pmCastries Hewanorra
17h 37m
1 stop
ORD8:48 amChicago O'Hare Intl
$612

Delta flights from Illinois to Castries

Our best Delta deals on Illinois to Castries flight tickets
Delta
Jul 21
MDW6:00 amChicago Midway
7h 12m
1 stop
UVF2:12 pmCastries Hewanorra
Jul 26
UVF3:33 pmCastries Hewanorra
22h 05m
2 stops
MDW12:38 pmChicago Midway
$738
Delta
Jul 1
STL6:00 amLambert-St Louis
7h 13m
1 stop
UVF2:13 pmCastries Hewanorra
Jul 7
UVF3:33 pmCastries Hewanorra
9h 20m
1 stop
STL11:53 pmLambert-St Louis
$748
Delta
Jun 19
MLI5:56 amMoline Quad-City
7h 17m
1 stop
UVF2:13 pmCastries Hewanorra
Jun 24
UVF3:33 pmCastries Hewanorra
19h 43m
1 stop
MLI10:16 amMoline Quad-City
$1,103

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Castries 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, momondo users made 832,500 searches. Data last updated June 6, 2026.
Use the filters below to find and compare flights from Illinois to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 7/6

8:40 pm-2:10 pm

1 stop16h 30m

Castries Hewanorra

Fri 7/10

3:05 pm-9:00 am

1 stop18h 55m

$388

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 7/6

8:40 pm-2:10 pm

1 stop16h 30m

Castries Hewanorra

Fri 7/10

3:05 pm-10:16 am

2 stops20h 11m

$392

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Thu 7/9

6:22 pm-2:10 pm

2 stops18h 48m

Castries Hewanorra

Tue 7/14

3:05 pm-10:16 am

2 stops20h 11m

$412

ChicagoCastries

MDW - UVF

MDWUVF

Chicago Midway

Tue 7/21

6:00 am-2:12 pm

1 stop7h 12m

Castries Hewanorra

Sun 7/26

3:33 pm-12:38 pm

2 stops22h 05m

$738

MolineCastries

MLI - UVF

MLIUVF

Moline Quad-City

Mon 7/20

11:53 am-2:20 pm

2 stops25h 27m

Castries Hewanorra

Mon 7/27

2:50 pm-3:50 pm

2 stops26h 00m

$770

MolineCastries

MLI - UVF

MLIUVF

Moline Quad-City

Mon 7/20

7:00 am-2:20 pm

1 stop30h 20m

Castries Hewanorra

Mon 7/27

2:50 pm-11:23 am

2 stops21h 33m

$780

MolineCastries

MLI - UVF

MLIUVF

Moline Quad-City

Fri 6/19

5:56 am-2:13 pm

1 stop7h 17m

Castries Hewanorra

Thu 6/25

3:33 pm-4:37 pm

1 stop26h 04m

$1,103
Quickest round-trip

MolineCastries

MLI - UVF

MLIUVF

Moline Quad-City

Sat 7/18

6:30 am-3:31 pm

1 stop8h 01m

Castries Hewanorra

Sat 7/25

12:55 pm-11:16 pm

1 stop11h 21m

$1,119

ChicagoCastries

MDW - UVF

MDWUVF

Chicago Midway

Thu 7/9

1:18 pm-2:10 pm

2 stops23h 52m

Castries Hewanorra

Tue 7/14

3:05 pm-9:13 am

3 stops19h 08m

$1,161

ChicagoCastries

MDW - UVF

MDWUVF

Chicago Midway

Thu 7/23

9:19 am-2:10 pm

2 stops27h 51m

Castries Hewanorra

Sun 7/26

2:30 pm-12:38 pm

2 stops23h 08m

$1,221

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Castries from

How to get the cheapest flight ticket from Illinois to Castries

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

What is the cheapest month to fly to Castries?

The month of April is, on average, the cheapest month to fly to Castries from Illinois, with most prices found around $363. The month of August is another great option to travel to Castries, with average flight prices from Illinois averaging around $368.

What is the cheapest Illinois to Castries Hewanorra flight route?

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

How far in advance should I book a flight from Illinois to Castries?

You are more likely to see cheaper flights to Castries from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Castries for around $867 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Castries from Illinois for as low as $617 on momondo.

What cabin class options are available on Illinois to Castries flights?

There is only 1 cabin class available to choose from on Illinois to Castries 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 Castries flights?

You could potentially save up to 47% on your flight if you consider stops on a Illinois to Castries flight.

Cheap Illinois to Castries flight deals and tips

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

Best Price Found

$488

Fastest flight time

5h 33m

Direct flights

Sun

Airports in Castries

1 airport
The best one-way flight to Castries from Illinois in the past 72 hours is $488. The best round-trip flight deal from Illinois to Castries found on momondo in the last 72 hours is $928.
The fastest flight from Illinois to Castries takes 5h 33m
Direct flights go from Illinois to Castries on Sunday. The only airline offering direct flights is United Airlines.
There is 1 airport in Castries. From Illinois there are direct flights to Castries Hewanorra (UVF).
Search flight deals

Frequently asked questions about flying from Illinois to Castries

  • When did momondo last update prices for flights from Illinois to Castries Hewanorra Airport?

    Prices for flights from Illinois to Castries Hewanorra Airport refresh daily.

  • How many operators does momondo search for flights from Illinois to Castries Hewanorra Airport?

  • How old do you have to be to fly from Illinois to Castries Hewanorra Airport?

    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 Illinois to Castries Hewanorra Airport.

  • What documentation or ID do you need to fly to Castries Hewanorra Airport?

    The travel and health documents required for your trip to Castries Hewanorra Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Castries Hewanorra Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Illinois to Castries?

Best airlines flying from Illinois to Castries

Compare and see reviews for airlines that fly from Illinois to Castries with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $552Free CancellationRating
7.1
11,651 reviews
Search American Airlines flights
DeltaPriceFrom $565Free CancellationRating
7.8
8,395 reviews
Search Delta flights
United AirlinesPriceFrom $608Free CancellationRating
7.4
9,777 reviews
Search United Airlines flights

Traveling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Vieux Fort

Why use momondo?

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

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

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

Flights from Illinois to Castries with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Illinois to Castries?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Castries.

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

Yes. momondo can track prices for Illinois to Castries 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.

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Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries George F. L. Charle Airport