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Cheap flights from Decatur, Illinois to Saint Thomas Island from $1,655

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Decatur, Illinois to Saint Thomas Island departing on 3/28. 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

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Find the cheapest flights from Decatur, Illinois to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:15 pm - 3:31 pm
DEC
-
STT
19h 16m
1 stop
United Airlines Logo
2:10 pm - 12:54 pm
STT
-
DEC
23h 44m
1 stop
$1,655United Airlines
Sat, Mar 28 - Fri, Apr 3
United Airlines Logo
7:15 pm - 3:31 pm
DEC
-
STT
19h 16m
1 stop
United Airlines Logo
2:10 pm - 12:54 pm
STT
-
DEC
23h 44m
1 stop
$1,675United Airlines
Sat, Mar 28 - Fri, Apr 3
United Airlines Logo
7:15 pm - 12:20 pm
DEC
-
STT
40h 05m
2 stops
United Airlines Logo
2:10 pm - 12:54 pm
STT
-
DEC
23h 44m
1 stop
$1,713United Airlines
Sat, Mar 28 - Fri, Apr 3
United Airlines Logo
7:15 pm - 12:20 pm
DEC
-
STT
40h 05m
2 stops
United Airlines Logo
2:10 pm - 12:54 pm
STT
-
DEC
23h 44m
1 stop
$1,770United Airlines
Sat, Mar 28 - Fri, Apr 3
United Airlines Logo
7:15 pm - 3:31 pm
DEC
-
STT
19h 16m
1 stop
United Airlines Logo
4:45 pm - 12:54 pm
STT
-
DEC
21h 09m
2 stops
$1,882United Airlines
Sat, Mar 28 - Fri, Apr 3
United Airlines Logo
7:15 pm - 12:20 pm
DEC
-
STT
40h 05m
2 stops
United Airlines Logo
4:45 pm - 12:54 pm
STT
-
DEC
21h 09m
2 stops
$1,937United Airlines
Sat, Mar 28 - Fri, Apr 3
United Airlines Logo
7:15 pm - 12:20 pm
DEC
-
STT
40h 05m
2 stops
United Airlines Logo
2:10 pm - 12:54 pm
STT
-
DEC
23h 44m
1 stop
$2,055United Airlines
Sat, Mar 28 - Fri, Apr 3

United Airlines flights from Decatur, Illinois to Saint Thomas Island

Our best United Airlines deals on Decatur, Illinois to Saint Thomas Island flight tickets
United Airlines
Mar 28
DEC7:15 pmDecatur Arpt
19h 16m
1 stop
STT3:31 pmSaint Thomas Island Cyril E King
Apr 3
STT2:10 pmSaint Thomas Island Cyril E King
23h 44m
1 stop
DEC12:54 pmDecatur Arpt
$1,655
United Airlines
Mar 28
DEC7:15 pmDecatur Arpt
19h 16m
1 stop
STT3:31 pmSaint Thomas Island Cyril E King
Apr 3
STT2:10 pmSaint Thomas Island Cyril E King
23h 44m
1 stop
DEC12:54 pmDecatur Arpt
$1,675
United Airlines
Mar 28
DEC7:15 pmDecatur Arpt
40h 05m
2 stops
STT12:20 pmSaint Thomas Island Cyril E King
Apr 3
STT2:10 pmSaint Thomas Island Cyril E King
23h 44m
1 stop
DEC12:54 pmDecatur Arpt
$1,713

momondo Fare Finder

 
Customize your flight search to find flights from Decatur, 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 March 15, 2026.
Use the filters below to find and compare flights from Decatur, Illinois to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DecaturSaint Thomas Island

DEC - STT

DECSTT

Decatur Arpt

Sat 3/28

7:15 pm-3:31 pm

1 stop19h 16m

Saint Thomas Island Cyril E King

Fri 4/3

2:10 pm-12:54 pm

1 stop23h 44m

$1,655

DecaturSaint Thomas Island

DEC - STT

DECSTT

Decatur Arpt

Sat 3/28

7:15 pm-3:31 pm

1 stop19h 16m

Saint Thomas Island Cyril E King

Fri 4/3

2:10 pm-12:54 pm

1 stop23h 44m

$1,675

DecaturSaint Thomas Island

DEC - STT

DECSTT

Decatur Arpt

Sat 3/28

7:15 pm-12:20 pm

2 stops40h 05m

Saint Thomas Island Cyril E King

Fri 4/3

2:10 pm-12:54 pm

1 stop23h 44m

$1,713

DecaturSaint Thomas Island

DEC - STT

DECSTT

Decatur Arpt

Sat 3/28

7:15 pm-12:20 pm

2 stops40h 05m

Saint Thomas Island Cyril E King

Fri 4/3

2:10 pm-12:54 pm

1 stop23h 44m

$1,770
Quickest round-trip

DecaturSaint Thomas Island

DEC - STT

DECSTT

Decatur Arpt

Sat 3/28

7:15 pm-3:31 pm

1 stop19h 16m

Saint Thomas Island Cyril E King

Fri 4/3

4:45 pm-12:54 pm

2 stops21h 09m

$1,882

DecaturSaint Thomas Island

DEC - STT

DECSTT

Decatur Arpt

Sat 3/28

7:15 pm-12:20 pm

2 stops40h 05m

Saint Thomas Island Cyril E King

Fri 4/3

4:45 pm-12:54 pm

2 stops21h 09m

$1,937

DecaturSaint Thomas Island

DEC - STT

DECSTT

Decatur Arpt

Sat 3/28

7:15 pm-12:20 pm

2 stops40h 05m

Saint Thomas Island Cyril E King

Fri 4/3

2:10 pm-12:54 pm

1 stop23h 44m

$2,055

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Decatur, Illinois to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from Decatur, Illinois to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Decatur, Illinois to Saint Thomas Island (DEC to STT) flight deals and tips

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

Fastest flight time

19h 16m

Direct flights

None
The fastest flight from Decatur, Illinois to Saint Thomas Island takes 19h 16m
There are no direct flights from Decatur, Illinois to Saint Thomas Island. There are no popular flight routes from Decatur, Illinois to Saint Thomas Island.
Search flight deals

  • How far is Decatur Arpt to Saint Thomas Island Cyril E King by plane?

    The distance between Decatur Arpt and Saint Thomas Island Cyril E King is about 2061.3 mi. A reasonable flight in good conditions will take 19h 16m.

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

    Prices for flights from Decatur Arpt Airport to Saint Thomas Island Cyril E King Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Decatur Arpt Airport 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 travel and health documents you'll need for your trip to Saint Thomas Island Cyril E King Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Decatur, Illinois to Saint Thomas Island?

    Search flight deals from Decatur, Illinois to Saint Thomas Island. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Decatur, Illinois to Saint Thomas Island with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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 Decatur 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 Decatur.

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

momondo does allow users to show only those flights to Saint Thomas Island from Decatur which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Decatur to Saint Thomas Island?

Once you have performed a search for Decatur to Saint Thomas Island flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Decatur to Saint Thomas Island now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint Thomas Island and let you know when they change.

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