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Cheap flights from Illinois to Saint Thomas Island from $218

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 10/28. 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
8:06 pm - 3:52 pm
STL
-
STT
18h 46m
2 stops
American Airlines Logo
4:42 pm - 10:40 pm
STT
-
STL
6h 58m
1 stop
$435American Airlines
Sat, Aug 29 - Sat, Sep 5
American Airlines Logo
5:42 pm - 3:02 pm
STL
-
STT
20h 20m
2 stops
American Airlines Logo
4:42 pm - 10:40 pm
STT
-
STL
6h 58m
1 stop
$435American Airlines
Sat, Aug 29 - Sat, Sep 5
Delta Logo
6:00 am - 1:37 pm
STL
-
STT
6h 37m
1 stop
Delta Logo
3:47 pm - 9:59 pm
STT
-
STL
8h 12m
1 stop
$440Delta
Wed, Oct 28 - Tue, Nov 3
Delta Logo
6:00 am - 1:34 pm
STL
-
STT
6h 34m
1 stop
Delta Logo
4:13 pm - 11:31 pm
STT
-
STL
8h 18m
1 stop
$440Delta
Sat, Aug 29 - Sat, Sep 5
JetBlue Logo
6:00 am - 2:01 pm
ORD
-
STT
31h 01m
2 stops
JetBlue Logo
3:00 pm - 1:45 pm
STT
-
ORD
23h 45m
2 stops
$469JetBlue
Tue, Sep 22 - Tue, Sep 29
JetBlue Logo
6:00 am - 2:01 pm
ORD
-
STT
31h 01m
2 stops
JetBlue Logo
3:00 pm - 11:08 pm
STT
-
ORD
33h 08m
2 stops
$476JetBlue
Mon, Sep 14 - Mon, Sep 21
Southwest Logo
5:00 am - 2:00 pm
MDW
-
STT
8h 00m
1 stop
Southwest Logo
3:45 pm - 11:05 pm
STT
-
MDW
9h 20m
1 stop
$533Southwest
Mon, Oct 26 - Mon, Nov 2
Southwest Logo
5:10 am - 3:00 pm
MDW
-
STT
7h 50m
1 stop
Southwest Logo
3:15 pm - 5:40 am
STT
-
MDW
16h 25m
2 stops
$542Southwest
Sun, Nov 1 - Wed, Nov 4
United Airlines Logo
9:30 am - 4:18 pm
ORD
-
STT
4h 48mnonstop
United Airlines Logo
3:05 pm - 6:45 pm
STT
-
ORD
5h 40mnonstop
$571United Airlines
Thu, Jan 7 - Wed, Jan 13
United Airlines Logo
7:40 am - 2:31 pm
ORD
-
STT
4h 51mnonstop
United Airlines Logo
3:05 pm - 6:45 pm
STT
-
ORD
5h 40mnonstop
$571United Airlines
Mon, Jan 4 - Thu, Jan 14

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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
Oct 26
MDW5:00 amChicago Midway
8h 00m
1 stop
STT2:00 pmSaint Thomas Island Cyril E King
Nov 2
STT3:45 pmSaint Thomas Island Cyril E King
9h 20m
1 stop
MDW11:05 pmChicago Midway
$533
Southwest
Nov 1
MDW5:10 amChicago Midway
7h 50m
1 stop
STT3:00 pmSaint Thomas Island Cyril E King
Nov 4
STT3:15 pmSaint Thomas Island Cyril E King
8h 00m
1 stop
MDW9:15 pmChicago Midway
$542
Southwest
Nov 1
MDW8:25 pmChicago Midway
16h 35m
2 stops
STT3:00 pmSaint Thomas Island Cyril E King
Nov 4
STT3:15 pmSaint Thomas Island Cyril E King
16h 25m
2 stops
MDW5:40 amChicago Midway
$562

Delta flights from Illinois to Saint Thomas Island

Our best Delta deals on Illinois to Saint Thomas Island flight tickets
Delta
Aug 29
STL6:00 amLambert-St Louis
6h 34m
1 stop
STT1:34 pmSaint Thomas Island Cyril E King
Sep 5
STT4:13 pmSaint Thomas Island Cyril E King
8h 18m
1 stop
STL11:31 pmLambert-St Louis
$440
Delta
Jan 4
MDW6:00 amChicago Midway
7h 05m
1 stop
STT3:05 pmSaint Thomas Island Cyril E King
Jan 15
STT1:50 pmSaint Thomas Island Cyril E King
10h 20m
1 stop
MDW10:10 pmChicago Midway
$580
Delta
Sep 17
ORD5:30 amChicago O'Hare Intl
7h 12m
1 stop
STT1:42 pmSaint Thomas Island Cyril E King
Sep 23
STT2:52 pmSaint Thomas Island Cyril E King
10h 07m
1 stop
ORD11:59 pmChicago O'Hare Intl
$605

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 August 4, 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

Sat 8/29

8:06 pm-3:52 pm

2 stops18h 46m

Saint Thomas Island Cyril E King

Sat 9/5

4:42 pm-10:40 pm

1 stop6h 58m

$435

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sat 8/29

5:42 pm-3:02 pm

2 stops20h 20m

Saint Thomas Island Cyril E King

Sat 9/5

4:42 pm-10:40 pm

1 stop6h 58m

$435

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Wed 10/28

6:00 am-1:37 pm

1 stop6h 37m

Saint Thomas Island Cyril E King

Tue 11/3

3:47 pm-9:59 pm

1 stop8h 12m

$440

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sat 8/29

6:00 am-1:34 pm

1 stop6h 34m

Saint Thomas Island Cyril E King

Sat 9/5

4:13 pm-11:31 pm

1 stop8h 18m

$440

ChicagoSaint Thomas Island

ORD - STT

ORDSTT

Chicago O'Hare Intl

Tue 9/22

6:00 am-2:01 pm

2 stops31h 01m

Saint Thomas Island Cyril E King

Tue 9/29

3:00 pm-1:45 pm

2 stops23h 45m

$469

ChicagoSaint Thomas Island

ORD - STT

ORDSTT

Chicago O'Hare Intl

Mon 9/14

6:00 am-2:01 pm

2 stops31h 01m

Saint Thomas Island Cyril E King

Mon 9/21

3:00 pm-11:08 pm

2 stops33h 08m

$476

ChicagoSaint Thomas Island

MDW - STT

MDWSTT

Chicago Midway

Mon 10/26

5:00 am-2:00 pm

1 stop8h 00m

Saint Thomas Island Cyril E King

Mon 11/2

3:45 pm-11:05 pm

1 stop9h 20m

$533

ChicagoSaint Thomas Island

MDW - STT

MDWSTT

Chicago Midway

Sun 11/1

5:10 am-3:00 pm

1 stop7h 50m

Saint Thomas Island Cyril E King

Wed 11/4

3:15 pm-5:40 am

2 stops16h 25m

$542
Quickest round-trip

ChicagoSaint Thomas Island

ORD - STT

ORDSTT

Chicago O'Hare Intl

Thu 1/7

9:30 am-4:18 pm

Nonstop4h 48m

Saint Thomas Island Cyril E King

Wed 1/13

3:05 pm-6:45 pm

Nonstop5h 40m

$571

ChicagoSaint Thomas Island

ORD - STT

ORDSTT

Chicago O'Hare Intl

Mon 1/4

7:40 am-2:31 pm

Nonstop4h 51m

Saint Thomas Island Cyril E King

Thu 1/14

3:05 pm-6:45 pm

Nonstop5h 40m

$571

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 October is another great option to travel to Saint Thomas Island, with average flight prices from Illinois averaging around $463.

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 $614. 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 $777.

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 $642 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 $572 on momondo.

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

There are 4 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 29% 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

$732

Fastest flight time

4h 46m

Direct flights

Every day

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 $732
The fastest flight from Illinois to Saint Thomas Island takes 4h 46m
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

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
United AirlinesPriceFrom $376Free CancellationRating
7.4
10,058 reviews
Search United Airlines flights
DeltaPriceFrom $410Free CancellationRating
7.8
8,483 reviews
Search Delta flights
American AirlinesPriceFrom $423Free CancellationRating
7.1
11,842 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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