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Cheap flights from Illinois to Saint Thomas Island from $90

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 Thomas Island departing on 2/25. 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 Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:49 pm - 2:31 pm
STL
-
STT
20h 42m
1 stop
Multiple Airlines Logo
3:36 pm - 10:27 pm
STT
-
STL
8h 51m
1 stop
$222Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
5:42 pm - 2:52 pm
STL
-
STT
19h 10m
1 stop
Multiple Airlines Logo
5:40 pm - 6:51 am
STT
-
STL
15h 11m
2 stops
$226Multiple Airlines
Mon, Feb 9 - Fri, Feb 13
Spirit Airlines Logo
4:35 pm - 1:26 pm
ORD
-
STT
19h 51m
2 stops
Spirit Airlines Logo
4:35 pm - 11:17 pm
STT
-
ORD
7h 42m
1 stop
$398Spirit Airlines
Sun, Mar 15 - Sat, Mar 21
Spirit Airlines Logo
10:44 am - 4:34 pm
ORD
-
STT
27h 50m
2 stops
Spirit Airlines Logo
5:40 pm - 5:46 pm
STT
-
ORD
26h 06m
2 stops
$400Spirit Airlines
Sun, Feb 22 - Sun, Mar 1
Southwest Logo
5:00 am - 2:55 pm
MDW
-
STT
7h 55m
1 stop
Southwest Logo
3:55 pm - 9:00 pm
STT
-
MDW
7h 05m
1 stop
$468Southwest
Tue, Feb 24 - Tue, Mar 3
American Airlines Logo
6:27 pm - 12:12 pm
PIA
-
STT
15h 45m
2 stops
American Airlines Logo
2:13 pm - 11:25 pm
STT
-
PIA
11h 12m
1 stop
$468American Airlines
Thu, Feb 19 - Thu, Feb 26
American Airlines Logo
4:22 pm - 2:03 pm
EVV
-
STT
19h 41m
2 stops
American Airlines Logo
5:42 pm - 11:53 pm
STT
-
EVV
8h 11m
1 stop
$468American Airlines
Thu, Feb 26 - Mon, Mar 2
Southwest Logo
9:15 pm - 1:35 pm
MDW
-
STT
15h 20m
2 stops
Southwest Logo
2:30 pm - 11:40 pm
STT
-
MDW
10h 10m
1 stop
$484Southwest
Thu, May 14 - Mon, May 18
Delta Logo
6:00 am - 1:59 pm
EVV
-
STT
6h 59m
1 stop
Delta Logo
1:20 pm - 10:05 pm
STT
-
EVV
9h 45m
1 stop
$550Delta
Wed, May 20 - Wed, May 27
Delta Logo
6:00 am - 1:59 pm
EVV
-
STT
6h 59m
1 stop
Delta Logo
1:20 pm - 10:05 pm
STT
-
EVV
9h 45m
1 stop
$611Delta
Wed, May 20 - Wed, May 27

American Airlines flights from Illinois to Saint Thomas Island

Our best American Airlines deals on Illinois to Saint Thomas Island flight tickets
American Airlines
Feb 26
EVV4:22 pmEvansville Dress Regional
19h 41m
2 stops
STT2:03 pmSaint Thomas Island Cyril E King
Mar 2
STT5:42 pmSaint Thomas Island Cyril E King
8h 11m
1 stop
EVV11:53 pmEvansville Dress Regional
$468
American Airlines
Feb 16
STL6:18 pmLambert-St Louis
16h 43m
2 stops
STT1:01 pmSaint Thomas Island Cyril E King
Mar 2
STT5:42 pmSaint Thomas Island Cyril E King
17h 58m
1 stop
STL9:40 amLambert-St Louis
$493
American Airlines
Feb 26
EVV6:30 amEvansville Dress Regional
8h 32m
1 stop
STT5:02 pmSaint Thomas Island Cyril E King
Mar 2
STT5:42 pmSaint Thomas Island Cyril E King
8h 11m
1 stop
EVV11:53 pmEvansville Dress Regional
$508

Southwest flights from Illinois to Saint Thomas Island

Our best Southwest deals on Illinois to Saint Thomas Island flight tickets
Southwest
Feb 24
MDW5:00 amChicago Midway
7h 55m
1 stop
STT2:55 pmSaint Thomas Island Cyril E King
Mar 3
STT3:55 pmSaint Thomas Island Cyril E King
7h 05m
1 stop
MDW9:00 pmChicago Midway
$468
Southwest
May 14
MDW9:15 pmChicago Midway
15h 20m
2 stops
STT1:35 pmSaint Thomas Island Cyril E King
May 18
STT2:30 pmSaint Thomas Island Cyril E King
10h 10m
1 stop
MDW11:40 pmChicago Midway
$484
Southwest
Apr 12
MDW8:55 pmChicago Midway
15h 40m
2 stops
STT1:35 pmSaint Thomas Island Cyril E King
Apr 20
STT2:30 pmSaint Thomas Island Cyril E King
10h 10m
1 stop
MDW11:40 pmChicago Midway
$499

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Saint Thomas Island 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 January 28, 2026.
Use the filters below to find and compare flights from Illinois to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Tue 2/24

3:49 pm-2:31 pm

1 stop20h 42m

Saint Thomas Island Cyril E King

Tue 3/3

3:36 pm-10:27 pm

1 stop8h 51m

$222

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Mon 2/9

5:42 pm-2:52 pm

1 stop19h 10m

Saint Thomas Island Cyril E King

Fri 2/13

5:40 pm-6:51 am

2 stops15h 11m

$226

ChicagoSaint Thomas Island

ORD - STT

ORDSTT

Chicago O'Hare Intl

Sun 3/15

4:35 pm-1:26 pm

2 stops19h 51m

Saint Thomas Island Cyril E King

Sat 3/21

4:35 pm-11:17 pm

1 stop7h 42m

$398

ChicagoSaint Thomas Island

ORD - STT

ORDSTT

Chicago O'Hare Intl

Sun 2/22

10:44 am-4:34 pm

2 stops27h 50m

Saint Thomas Island Cyril E King

Sun 3/1

5:40 pm-5:46 pm

2 stops26h 06m

$400

ChicagoSaint Thomas Island

MDW - STT

MDWSTT

Chicago Midway

Tue 2/24

5:00 am-2:55 pm

1 stop7h 55m

Saint Thomas Island Cyril E King

Tue 3/3

3:55 pm-9:00 pm

1 stop7h 05m

$468

PeoriaSaint Thomas Island

PIA - STT

PIASTT

Greater Peoria

Thu 2/19

6:27 pm-12:12 pm

2 stops15h 45m

Saint Thomas Island Cyril E King

Thu 2/26

2:13 pm-11:25 pm

1 stop11h 12m

$468

EvansvilleSaint Thomas Island

EVV - STT

EVVSTT

Evansville Dress Regional

Thu 2/26

4:22 pm-2:03 pm

2 stops19h 41m

Saint Thomas Island Cyril E King

Mon 3/2

5:42 pm-11:53 pm

1 stop8h 11m

$468

ChicagoSaint Thomas Island

MDW - STT

MDWSTT

Chicago Midway

Thu 5/14

9:15 pm-1:35 pm

2 stops15h 20m

Saint Thomas Island Cyril E King

Mon 5/18

2:30 pm-11:40 pm

1 stop10h 10m

$484

EvansvilleSaint Thomas Island

EVV - STT

EVVSTT

Evansville Dress Regional

Wed 5/20

6:00 am-1:59 pm

1 stop6h 59m

Saint Thomas Island Cyril E King

Wed 5/27

1:20 pm-10:05 pm

1 stop9h 45m

$550

EvansvilleSaint Thomas Island

EVV - STT

EVVSTT

Evansville Dress Regional

Wed 5/20

6:00 am-1:59 pm

1 stop6h 59m

Saint Thomas Island Cyril E King

Wed 5/27

1:20 pm-10:05 pm

1 stop9h 45m

$611

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 Saint Thomas Island from

How to get the cheapest flight ticket from Illinois to Saint Thomas Island

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 Saint Thomas Island?

The month of September is another great option to travel to Saint Thomas Island, with average flight prices from Illinois averaging around $549.

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

On average, the least expensive day to fly to Saint Thomas Island from Illinois is on a Thursday. momondo users have found tickets for Thursday departures for as low as $609. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Saint Thomas Island for around $860.

What is the cheapest Illinois to Saint Thomas Island Cyril E King flight route?

Fly from Chicago O'Hare Intl to Saint Thomas Island Cyril E King for the best Illinois - Saint Thomas Island Cyril E King flight prices

How far in advance should I book a flight to Saint Thomas Island?

You are more likely to see cheaper flights to Saint Thomas Island from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $650 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Thomas Island from Illinois for as low as $507 on momondo.

What cabin class options are available on Illinois to Saint Thomas Island Cyril E King flights?

There are 2 cabin classes available to choose from on Illinois to Saint Thomas Island Cyril E King flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Illinois to Saint Thomas Island flight deals and tips

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

Best Price Found

$328

Fastest flight time

4h 48m

Direct flights

Every day

Airports in Saint Thomas Island

1 airport
The best one-way flight to Saint Thomas Island from Illinois in the past 72 hours is $328. The best round-trip flight deal from Illinois to Saint Thomas Island found on momondo in the last 72 hours is $530.
The fastest flight from Illinois to Saint Thomas Island takes 4h 48m
Direct flights go from Illinois to Saint Thomas Island every day.
There is 1 airport in Saint Thomas Island. From Illinois there are direct flights to Saint Thomas Island Cyril E King (STT).
Search flight deals

  • When did momondo last update prices for flights from Illinois to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Illinois to Saint Thomas Island Cyril E King Airport refresh daily.

  • How many operators does momondo search for flights from Illinois to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Illinois to Saint Thomas Island Cyril E King Airport?

    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 Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The required travel and health documents for your Saint Thomas Island Cyril E King Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Illinois to Saint Thomas Island?

Best airlines flying from Illinois to Saint Thomas Island

Compare and see reviews for airlines that fly from Illinois to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $176Free CancellationRating
6.3
8,385 reviews
Search Spirit Airlines flights
DeltaPriceFrom $359Free CancellationRating
7.9
8,121 reviews
Search Delta flights
United AirlinesPriceFrom $468Free CancellationRating
7.4
9,205 reviews
Search United Airlines flights
American AirlinesPriceFrom $483Free CancellationRating
7.2
11,200 reviews
Search American Airlines flights

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

Why use momondo?

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

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 Thomas Island from Illinois.

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

momondo does allow users to show only those flights to Saint Thomas Island 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 Thomas Island?

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 Saint Thomas Island.

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

Yes. momondo can track prices for Illinois to Saint Thomas Island 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 Thomas Island trip

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