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Cheap flights from Illinois to Saint Thomas Island from $186

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 8/31. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:25 pm - 12:53 pm
STL
-
STT
20h 28m
2 stops
American Airlines Logo
4:42 pm - 10:52 am
STT
-
STL
19h 10m
2 stops
$284American Airlines
Tue, Aug 18 - Mon, Aug 24
American Airlines Logo
5:00 am - 12:53 pm
STL
-
STT
30h 53m
1 stop
American Airlines Logo
4:42 pm - 10:52 am
STT
-
STL
19h 10m
2 stops
$345American Airlines
Tue, Aug 18 - Mon, Aug 24
American Airlines Logo
6:45 pm - 3:25 pm
STL
-
STT
18h 40m
2 stops
American Airlines Logo
6:17 pm - 9:23 am
STT
-
STL
17h 06m
2 stops
$352American Airlines
Tue, Dec 1 - Tue, Dec 8
JetBlue Logo
8:10 pm - 1:59 pm
ORD
-
STT
16h 49m
1 stop
JetBlue Logo
2:53 pm - 8:50 am
STT
-
ORD
18h 57m
3 stops
$470JetBlue
Thu, Jul 16 - Tue, Jul 21
JetBlue Logo
5:27 pm - 2:03 pm
ORD
-
STT
19h 36m
2 stops
JetBlue Logo
2:53 pm - 8:50 am
STT
-
ORD
18h 57m
3 stops
$484JetBlue
Mon, Jul 13 - Tue, Jul 21
Delta Logo
6:00 am - 1:34 pm
MLI
-
STT
6h 34m
1 stop
Delta Logo
2:52 pm - 10:30 pm
STT
-
MLI
8h 38m
1 stop
$500Delta
Tue, Sep 1 - Tue, Sep 8
Delta Logo
6:00 am - 1:34 pm
BMI
-
STT
6h 34m
1 stop
Delta Logo
2:49 pm - 11:16 pm
STT
-
BMI
9h 27m
1 stop
$510Delta
Mon, Aug 24 - Mon, Aug 31
Southwest Logo
5:10 am - 1:25 pm
MDW
-
STT
7h 15m
1 stop
Southwest Logo
2:10 pm - 11:30 pm
STT
-
MDW
10h 20m
1 stop
$518Southwest
Sun, Aug 23 - Sun, Aug 30
Southwest Logo
6:00 pm - 1:25 pm
MDW
-
STT
18h 25m
2 stops
Southwest Logo
2:10 pm - 9:50 pm
STT
-
MDW
8h 40m
1 stop
$572Southwest
Sat, Aug 29 - Sun, Sep 6
United Airlines Logo
5:20 pm - 1:12 pm
PIA
-
STT
17h 52m
2 stops
United Airlines Logo
2:15 pm - 12:19 am
STT
-
PIA
36h 04m
3 stops
$1,083United Airlines
Sun, Nov 8 - Thu, Nov 12

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Southwest flights from Illinois to Saint Thomas Island

Our best Southwest deals on Illinois to Saint Thomas Island flight tickets
Southwest
Aug 23
MDW5:10 amChicago Midway
7h 15m
1 stop
STT1:25 pmSaint Thomas Island Cyril E King
Aug 30
STT2:10 pmSaint Thomas Island Cyril E King
10h 20m
1 stop
MDW11:30 pmChicago Midway
$518
Southwest
Aug 23
MDW5:10 amChicago Midway
7h 15m
1 stop
STT1:25 pmSaint Thomas Island Cyril E King
Aug 30
STT2:10 pmSaint Thomas Island Cyril E King
16h 30m
2 stops
MDW5:40 amChicago Midway
$578
Southwest
Sep 21
MDW5:00 amChicago Midway
7h 50m
1 stop
STT1:50 pmSaint Thomas Island Cyril E King
Sep 28
STT2:35 pmSaint Thomas Island Cyril E King
8h 20m
2 stops
MDW9:55 pmChicago Midway
$608

United Airlines flights from Illinois to Saint Thomas Island

Our best United Airlines deals on Illinois to Saint Thomas Island flight tickets
United Airlines
Nov 8
ORD9:30 amChicago O'Hare Intl
4h 48m
STT4:18 pmSaint Thomas Island Cyril E King
Nov 12
STT2:15 pmSaint Thomas Island Cyril E King
9h 32m
1 stop
ORD9:47 pmChicago O'Hare Intl
$586
United Airlines
Jul 18
STL6:00 amLambert-St Louis
7h 54m
1 stop
STT2:54 pmSaint Thomas Island Cyril E King
Jul 24
STT1:22 pmSaint Thomas Island Cyril E King
10h 23m
1 stop
STL10:45 pmLambert-St Louis
$676
United Airlines
Jul 2
ORD5:30 amChicago O'Hare Intl
9h 13m
1 stop
STT3:43 pmSaint Thomas Island Cyril E King
Jul 10
STT4:45 pmSaint Thomas Island Cyril E King
7h 46m
1 stop
ORD11:31 pmChicago O'Hare Intl
$848

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 June 19, 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

Cheapest round-trip

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Tue 8/18

3:25 pm-12:53 pm

2 stops20h 28m

Saint Thomas Island Cyril E King

Mon 8/24

4:42 pm-10:52 am

2 stops19h 10m

$284

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Tue 8/18

5:00 am-12:53 pm

1 stop30h 53m

Saint Thomas Island Cyril E King

Mon 8/24

4:42 pm-10:52 am

2 stops19h 10m

$345

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Tue 12/1

6:45 pm-3:25 pm

2 stops18h 40m

Saint Thomas Island Cyril E King

Tue 12/8

6:17 pm-9:23 am

2 stops17h 06m

$352

ChicagoSaint Thomas Island

ORD - STT

ORDSTT

Chicago O'Hare Intl

Thu 7/16

8:10 pm-1:59 pm

1 stop16h 49m

Saint Thomas Island Cyril E King

Tue 7/21

2:53 pm-8:50 am

3 stops18h 57m

$470

ChicagoSaint Thomas Island

ORD - STT

ORDSTT

Chicago O'Hare Intl

Mon 7/13

5:27 pm-2:03 pm

2 stops19h 36m

Saint Thomas Island Cyril E King

Tue 7/21

2:53 pm-8:50 am

3 stops18h 57m

$484
Quickest round-trip

MolineSaint Thomas Island

MLI - STT

MLISTT

Moline Quad-City

Tue 9/1

6:00 am-1:34 pm

1 stop6h 34m

Saint Thomas Island Cyril E King

Tue 9/8

2:52 pm-10:30 pm

1 stop8h 38m

$500

BloomingtonSaint Thomas Island

BMI - STT

BMISTT

Bloomington-Normal

Mon 8/24

6:00 am-1:34 pm

1 stop6h 34m

Saint Thomas Island Cyril E King

Mon 8/31

2:49 pm-11:16 pm

1 stop9h 27m

$510

ChicagoSaint Thomas Island

MDW - STT

MDWSTT

Chicago Midway

Sun 8/23

5:10 am-1:25 pm

1 stop7h 15m

Saint Thomas Island Cyril E King

Sun 8/30

2:10 pm-11:30 pm

1 stop10h 20m

$518

ChicagoSaint Thomas Island

MDW - STT

MDWSTT

Chicago Midway

Sat 8/29

6:00 pm-1:25 pm

2 stops18h 25m

Saint Thomas Island Cyril E King

Sun 9/6

2:10 pm-9:50 pm

1 stop8h 40m

$572

PeoriaSaint Thomas Island

PIA - STT

PIASTT

Greater Peoria

Sun 11/8

5:20 pm-1:12 pm

2 stops17h 52m

Saint Thomas Island Cyril E King

Thu 11/12

2:15 pm-12:19 am

3 stops36h 04m

$1,083

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 March is another great option to travel to Saint Thomas Island, with average flight prices from Illinois averaging around $147.

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 $610. 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 $770.

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 from Illinois 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 $644 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 $604 on momondo.

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

There are 2 cabin classes available to choose from on Illinois to Saint Thomas Island 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 Saint Thomas Island flights?

You could potentially save up to 30% on your flight if you consider stops on a Illinois to Saint Thomas Island flight.

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

$671

Fastest flight time

4h 48m

Direct flights

Mon and Sun

Airports in Saint Thomas Island

1 airport
The best flight deal from Illinois to Saint Thomas Island found on momondo in the last 72 hours is $671
The fastest flight from Illinois to Saint Thomas Island takes 4h 48m
Direct flights go from Illinois to Saint Thomas Island on Monday and Sunday. There are no airlines offering direct flights.
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

Frequently asked questions about flying from Illinois to Saint Thomas Island

  • 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
DeltaPriceFrom $359Free CancellationRating
7.8
8,417 reviews
Search Delta flights
United AirlinesPriceFrom $376Free CancellationRating
7.4
9,860 reviews
Search United Airlines flights
American AirlinesPriceFrom $423Free CancellationRating
7.1
11,703 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.

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