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Cheap flights from Illinois to Castries from $206

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 9/8. 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

JetBlue Logo
1:35 pm - 2:15 pmORD-UVF
23h 40m1 stop
JetBlue Logo
3:20 pm - 6:23 pmUVF-ORD
28h 03m1 stop
$484JetBlue
Find Deal
Tue, Sep 16 - Fri, Sep 26
JetBlue Logo
6:45 am - 2:15 pmORD-UVF
30h 30m1 stop
JetBlue Logo
3:20 pm - 8:49 pmUVF-ORD
30h 29m1 stop
$494JetBlue
Find Deal
Mon, Sep 8 - Sun, Sep 14
Air Canada Logo
1:30 pm - 2:15 pmSTL-UVF
23h 45m2 stops
Air Canada Logo
3:10 pm - 7:38 pmUVF-STL
29h 28m1 stop
$518Air Canada
Find Deal
Mon, Sep 8 - Fri, Sep 12
Air Canada Logo
8:25 pm - 2:15 pmORD-UVF
16h 50m1 stop
Air Canada Logo
3:10 pm - 9:51 amUVF-ORD
19h 41m2 stops
$565Air Canada
Find Deal
Mon, Oct 6 - Fri, Oct 10
American Airlines Logo
7:07 pm - 1:21 pmORD-UVF
16h 14m1 stop
American Airlines Logo
4:05 pm - 9:05 amUVF-ORD
19h 00m1 stop
$575American Airlines
Find Deal
Sun, Nov 2 - Fri, Nov 7
Delta Logo
6:00 am - 3:04 pmSTL-UVF
7h 04m1 stop
Delta Logo
4:24 pm - 11:40 pmUVF-STL
9h 16m1 stop
$575Delta
Find Deal
Wed, Jan 7 - Wed, Jan 14
Logo
3:35 pm - 1:44 pmORD-UVF
21h 09m2 stops
Logo
3:10 pm - 4:51 pmUVF-ORD
26h 41m3 stops
$576
Find Deal
Sat, Sep 27 - Tue, Sep 30
Logo
6:20 pm - 1:44 pmORD-UVF
18h 24m1 stop
Logo
3:10 pm - 10:53 amUVF-ORD
20h 43m1 stop
$577
Find Deal
Sat, Sep 27 - Tue, Sep 30
American Airlines Logo
4:08 pm - 1:00 pmSTL-UVF
18h 52m2 stops
American Airlines Logo
4:55 pm - 11:58 amUVF-STL
21h 03m2 stops
$580American Airlines
Find Deal
Tue, Dec 9 - Thu, Dec 18
Delta Logo
7:35 pm - 3:10 pmORD-UVF
17h 35m2 stops
Delta Logo
4:35 pm - 6:38 pmUVF-ORD
28h 03m2 stops
$580Delta
Find Deal
Mon, Nov 17 - Wed, Nov 19

JetBlue flights from Illinois to Castries

Our best JetBlue deals on Illinois to Castries flight tickets
JetBlue
Sep 16
ORD1:35 pmChicago O'Hare Intl
23h 40m
1 stop
UVF2:15 pmCastries Hewanorra
Sep 26
UVF3:20 pmCastries Hewanorra
28h 03m
1 stop
ORD6:23 pmChicago O'Hare Intl
$484
Find similar
JetBlue
Sep 8
ORD6:45 amChicago O'Hare Intl
30h 30m
1 stop
UVF2:15 pmCastries Hewanorra
Sep 14
UVF3:20 pmCastries Hewanorra
30h 29m
1 stop
ORD8:49 pmChicago O'Hare Intl
$494
Find similar
JetBlue
Oct 28
ORD6:45 amChicago O'Hare Intl
30h 11m
1 stop
UVF1:56 pmCastries Hewanorra
Nov 5
UVF4:55 pmCastries Hewanorra
30h 53m
1 stop
ORD9:48 pmChicago O'Hare Intl
$499
Find similar

Air Canada flights from Illinois to Castries

Our best Air Canada deals on Illinois to Castries flight tickets
Air Canada
Sep 8
STL1:30 pmLambert-St Louis
23h 45m
2 stops
UVF2:15 pmCastries Hewanorra
Sep 12
UVF3:10 pmCastries Hewanorra
29h 28m
1 stop
STL7:38 pmLambert-St Louis
$518
Find similar
Air Canada
Oct 6
ORD8:25 pmChicago O'Hare Intl
16h 50m
1 stop
UVF2:15 pmCastries Hewanorra
Oct 10
UVF3:10 pmCastries Hewanorra
19h 41m
2 stops
ORD9:51 amChicago O'Hare Intl
$565
Find similar
Air Canada
Oct 6
ORD8:25 pmChicago O'Hare Intl
16h 50m
1 stop
UVF2:15 pmCastries Hewanorra
Oct 10
UVF3:10 pmCastries Hewanorra
20h 43m
1 stop
ORD10:53 amChicago O'Hare Intl
$572
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 August 2, 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

Tue 9/16

1:35 pm-2:15 pm

1 stop23h 40m

Castries Hewanorra

Fri 9/26

3:20 pm-6:23 pm

1 stop28h 03m

$484

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 9/8

6:45 am-2:15 pm

1 stop30h 30m

Castries Hewanorra

Sun 9/14

3:20 pm-8:49 pm

1 stop30h 29m

$494

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Mon 9/8

1:30 pm-2:15 pm

2 stops23h 45m

Castries Hewanorra

Fri 9/12

3:10 pm-7:38 pm

1 stop29h 28m

$518

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 10/6

8:25 pm-2:15 pm

1 stop16h 50m

Castries Hewanorra

Fri 10/10

3:10 pm-9:51 am

2 stops19h 41m

$565

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sun 11/2

7:07 pm-1:21 pm

1 stop16h 14m

Castries Hewanorra

Fri 11/7

4:05 pm-9:05 am

1 stop19h 00m

$575

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Wed 1/7

6:00 am-3:04 pm

1 stop7h 04m

Castries Hewanorra

Wed 1/14

4:24 pm-11:40 pm

1 stop9h 16m

$575

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sat 9/27

3:35 pm-1:44 pm

2 stops21h 09m

Castries Hewanorra

Tue 9/30

3:10 pm-4:51 pm

3 stops26h 41m

$576

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Sat 9/27

6:20 pm-1:44 pm

1 stop18h 24m

Castries Hewanorra

Tue 9/30

3:10 pm-10:53 am

1 stop20h 43m

$577

St. LouisCastries

STL - UVF

STLUVF

Lambert-St Louis

Tue 12/9

4:08 pm-1:00 pm

2 stops18h 52m

Castries Hewanorra

Thu 12/18

4:55 pm-11:58 am

2 stops21h 03m

$580

ChicagoCastries

ORD - UVF

ORDUVF

Chicago O'Hare Intl

Mon 11/17

7:35 pm-3:10 pm

2 stops17h 35m

Castries Hewanorra

Wed 11/19

4:35 pm-6:38 pm

2 stops28h 03m

$580

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 October is, on average, the cheapest month to fly to Castries from Illinois, with most prices found around $587. The month of January is another great option to travel to Castries, with average flight prices from Illinois averaging around $603.

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 $920. 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 $873. 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 $779 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 $574 on momondo.

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

There are 1 cabin classes 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

Best Price Found

$206

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 $206. The best round-trip flight deal from Illinois to Castries found on momondo in the last 72 hours is $484.
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 near Castries: Castries Hewanorra (UVF)
Search flight deals

  • 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
8.0
7,985 reviews
Search Delta flights
United AirlinesPriceFrom $570Free CancellationRating
7.4
8,905 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