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Cheap flights from Illinois to Castries from $171

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 12/6. 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
0 bags

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Find the cheapest flights from Illinois to Castries

Cheap round-trip flights

Air Canada Logo
9:12 pm - 2:15 pmORD-UVF
16h 03m1 stop
Air Canada Logo
3:10 pm - 7:24 pmUVF-ORD
29h 14m1 stop
$404Air Canada
Find Deal
Mon, Oct 6 - Fri, Oct 10
Air Canada Logo
9:12 pm - 2:15 pmORD-UVF
16h 03m1 stop
Air Canada Logo
3:10 pm - 9:51 amUVF-ORD
43h 41m2 stops
$412Air Canada
Find Deal
Mon, Oct 6 - Fri, Oct 10
Multiple Airlines Logo
8:25 pm - 2:15 pmORD-UVF
16h 50m1 stop
Multiple Airlines Logo
3:10 pm - 11:45 pmUVF-ORD
33h 35m3 stops
$469Multiple Airlines
Find Deal
Mon, Oct 6 - Tue, Oct 14
JetBlue Logo
6:44 am - 2:57 pmORD-UVF
30h 13m1 stop
JetBlue Logo
4:57 pm - 12:48 pmUVF-ORD
21h 51m1 stop
$509JetBlue
Find Deal
Sun, Nov 16 - Wed, Nov 19
JetBlue Logo
6:44 am - 2:57 pmORD-UVF
30h 13m1 stop
JetBlue Logo
5:01 pm - 10:50 pmUVF-ORD
31h 49m1 stop
$519JetBlue
Find Deal
Sun, Nov 16 - Thu, Nov 20
Multiple Airlines Logo
8:00 am - 3:25 pmORD-UVF
30h 25m1 stop
Multiple Airlines Logo
2:40 pm - 6:38 pmUVF-ORD
28h 58m2 stops
$540Multiple Airlines
Find Deal
Sun, Oct 26 - Thu, Oct 30
Delta Logo
5:50 am - 3:04 pmORD-UVF
7h 14m1 stop
Delta Logo
4:24 pm - 8:39 amUVF-ORD
18h 15m1 stop
$555Delta
Find Deal
Tue, Jan 6 - Wed, Jan 14
Delta Logo
6:00 am - 3:04 pmMDW-UVF
7h 04m1 stop
Delta Logo
4:24 pm - 9:23 amUVF-MDW
18h 59m1 stop
$555Delta
Find Deal
Tue, Jan 6 - Wed, Jan 14
American Airlines Logo
12:19 am - 3:52 pmORD-UVF
13h 33m1 stop
American Airlines Logo
4:00 pm - 11:39 pmUVF-ORD
9h 39m1 stop
$565American Airlines
Find Deal
Sun, Nov 30 - Fri, Dec 5
American Airlines Logo
12:52 am - 1:19 pmORD-UVF
10h 27m2 stops
American Airlines Logo
4:00 pm - 11:39 pmUVF-ORD
9h 39m1 stop
$570American Airlines
Find Deal
Sun, Nov 30 - Fri, Dec 5

United Airlines flights from Illinois to Castries

Our best United Airlines deals on Illinois to Castries flight tickets
United Airlines
Jan 31
ORD8:52 amChicago O'Hare Intl
5h 33m
UVF4:25 pmCastries Hewanorra
Feb 7
UVF1:52 pmCastries Hewanorra
6h 23m
ORD6:15 pmChicago O'Hare Intl
$611
Find similar
United Airlines
Jan 31
MLI6:30 amMoline Quad-City
7h 55m
1 stop
UVF4:25 pmCastries Hewanorra
Feb 7
UVF1:52 pmCastries Hewanorra
22h 20m
1 stop
MLI10:12 amMoline Quad-City
$647
Find similar
United Airlines
Nov 1
MLI6:35 amMoline Quad-City
7h 50m
1 stop
UVF3:25 pmCastries Hewanorra
Nov 8
UVF1:52 pmCastries Hewanorra
9h 25m
1 stop
MLI9:17 pmMoline Quad-City
$1,003
Find similar

Delta flights from Illinois to Castries

Our best Delta deals on Illinois to Castries flight tickets
Delta
Jan 6
ORD5:50 amChicago O'Hare Intl
7h 14m
1 stop
UVF3:04 pmCastries Hewanorra
Jan 14
UVF4:24 pmCastries Hewanorra
18h 15m
1 stop
ORD8:39 amChicago O'Hare Intl
$555
Find similar
Delta
Jan 6
ORD5:50 amChicago O'Hare Intl
7h 14m
1 stop
UVF3:04 pmCastries Hewanorra
Jan 14
UVF4:24 pmCastries Hewanorra
22h 17m
2 stops
ORD12:41 pmChicago O'Hare Intl
$560
Find similar
Delta
Nov 17
ORD5:32 amChicago O'Hare Intl
8h 07m
1 stop
UVF3:39 pmCastries Hewanorra
Nov 25
UVF4:59 pmCastries Hewanorra
9h 03m
1 stop
ORD12:02 amChicago O'Hare Intl
$575
Find similar

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 September 19, 2025.
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

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-7:24 pm

1 stop29h 14m

$404

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-9:51 am

2 stops43h 41m

$412

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 10/6

8:25 pm-2:15 pm

1 stop16h 50m

Castries Hewanorra

Tue 10/14

3:10 pm-11:45 pm

3 stops33h 35m

$469

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sun 11/16

6:44 am-2:57 pm

1 stop30h 13m

Castries Hewanorra

Wed 11/19

4:57 pm-12:48 pm

1 stop21h 51m

$509

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sun 11/16

6:44 am-2:57 pm

1 stop30h 13m

Castries Hewanorra

Thu 11/20

5:01 pm-10:50 pm

1 stop31h 49m

$519

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sun 10/26

8:00 am-3:25 pm

1 stop30h 25m

Castries Hewanorra

Thu 10/30

2:40 pm-6:38 pm

2 stops28h 58m

$540

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Tue 1/6

5:50 am-3:04 pm

1 stop7h 14m

Castries Hewanorra

Wed 1/14

4:24 pm-8:39 am

1 stop18h 15m

$555

ChicagoCastries

MDW - UVF

MDWUVF

Chicago Midway

Tue 1/6

6:00 am-3:04 pm

1 stop7h 04m

Castries Hewanorra

Wed 1/14

4:24 pm-9:23 am

1 stop18h 59m

$555

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

Sun 11/30

12:52 am-1:19 pm

2 stops10h 27m

Castries Hewanorra

Fri 12/5

4:00 pm-11:39 pm

1 stop9h 39m

$570

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 January is, on average, the cheapest month to fly to Castries from Illinois, with most prices found around $603. The month of August is another great option to travel to Castries, with average flight prices from Illinois averaging around $605.

What is the cheapest day to depart on your flight to Castries?

The cheapest day to depart from Illinois to Castries is on a Wednesday when prices can be found for as low as $630. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $906. These prices are subject to change though, so be sure to set up a Price Alert for flights to Castries.

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

According to our data, the cheapest time of day to fly to Castries is at noon. momondo users have found flights departing from Illinois to Castries at noon for as low as $496. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Castries are more costly in the morning, with an average ticket price of $872. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 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 $782 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 $639 on momondo.

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

There is only 1 cabin class available to choose from on Illinois to Castries Hewanorra 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 49% 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

Fastest flight time

5h 33m

Direct flights

Sun

Airports in Castries

1 airport
The fastest flight from Illinois to Castries takes 5h 33m
Direct flights go from Illinois to Castries on Sunday. There are no airlines offering direct flights.
There is 1 airport near Castries: Castries Hewanorra (UVF)
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  • 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 $443Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $555Free CancellationRating
7.9
7,964 reviews
Search Delta flights
United AirlinesPriceFrom $558Free CancellationRating
7.4
8,926 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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1 adult
Sun 10/19
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Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries George F. L. Charle Airport