$538 Cheap Flights from Duluth (DLH) to St. Thomas (STT)

View $538 flight on Sun, Jan 18, 2026Opens in a new window

Popular airlines from Duluth, MN (DLH-Duluth Intl.) to Cyril E. King Airport (STT)

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Cheap Flights from Duluth to St. Thomas (DLH-STT)

Prices were available within the past 7 days and start at $538 for one-way flights and $738 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jan 20 - Wed, Jan 21
DLH
Duluth
STT
St. Thomas
$738 Roundtrip, found 2 days ago
$738
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 20 from Duluth to St. Thomas, returning Wed, Jan 21, priced at $738 found 2 days ago
United
Sat, Jan 17 - Wed, Jan 21
DLH
Duluth
STT
St. Thomas
$748 Roundtrip, found 2 days ago
$748
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 17 from Duluth to St. Thomas, returning Wed, Jan 21, priced at $748 found 2 days ago
United
Tue, Jan 20 - Mon, Jan 26
DLH
Duluth
STT
St. Thomas
$754 Roundtrip, found 2 days ago
$754
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 20 from Duluth to St. Thomas, returning Mon, Jan 26, priced at $754 found 2 days ago
United
Tue, Jan 20 - Thu, Jan 22
DLH
Duluth
STT
St. Thomas
$756 Roundtrip, found 2 days ago
$756
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 20 from Duluth to St. Thomas, returning Thu, Jan 22, priced at $756 found 2 days ago
United
Sat, Jan 17 - Thu, Jan 22
DLH
Duluth
STT
St. Thomas
$765 Roundtrip, found 2 days ago
$765
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 17 from Duluth to St. Thomas, returning Thu, Jan 22, priced at $765 found 2 days ago
United
Sat, Jan 17 - Mon, Jan 26
DLH
Duluth
STT
St. Thomas
$767 Roundtrip, found 2 days ago
$767
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 17 from Duluth to St. Thomas, returning Mon, Jan 26, priced at $767 found 2 days ago
United
Wed, Jan 21 - Mon, Jan 26
DLH
Duluth
STT
St. Thomas
$772 Roundtrip, found 2 days ago
$772
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 21 from Duluth to St. Thomas, returning Mon, Jan 26, priced at $772 found 2 days ago
United
Wed, Jan 21 - Thu, Jan 22
DLH
Duluth
STT
St. Thomas
$774 Roundtrip, found 2 days ago
$774
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 21 from Duluth to St. Thomas, returning Thu, Jan 22, priced at $774 found 2 days ago
United
Fri, Jan 16 - Wed, Jan 21
DLH
Duluth
STT
St. Thomas
$844 Roundtrip, found 2 days ago
$844
Roundtrip
found 2 days ago
Select United flight, departing Fri, Jan 16 from Duluth to St. Thomas, returning Wed, Jan 21, priced at $844 found 2 days ago
Delta
Sat, Jun 13 - Sat, Jun 20
DLH
Duluth
STT
St. Thomas
$1,697 Roundtrip, found 1 day ago
$1,697
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jun 13 from Duluth to St. Thomas, returning Sat, Jun 20, priced at $1,697 found 1 day ago

Frequently asked questions

How much does a flight from Duluth Intl. Airport (DLH) to Cyril E. King Airport (STT) cost?
Secure a cheap one-way flight from $538 or cheap return flight from $738 from Duluth Intl. Airport (DLH) to Cyril E. King Airport (STT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Duluth Intl. Airport (DLH) to Cyril E. King Airport (STT)?
The cheapest month to fly from DLH to STT is January, when demand is low. Off-peak season is generally when airlines offer better prices between these airports.
What is the cheapest airline that flies from Duluth Intl. Airport (DLH) to Cyril E. King Airport (STT)?
To find the cheapest airline that'll fly you from DLH to STT, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Duluth Intl. Airport (DLH) to Cyril E. King Airport (STT)?
Nonstop flights from Duluth Intl. Airport (DLH) to Cyril E. King Airport (STT) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DLH to STT?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Duluth Intl. Airport (DLH) to Cyril E. King Airport (STT)?
To touch down at Cyril E. King Airport (STT) on schedule, pick a flight that leaves Duluth Intl. Airport (DLH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Duluth Intl. Airport (DLH) to Cyril E. King Airport (STT) last-minute?
Booking your flight from DLH to STT shortly before your journey is generally more expensive. But if there's some wiggle room with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a DLH to STT flight and hotel package?
Opting for a DLH to STT flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our extensive range of stays and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Duluth Intl. Airport (DLH) to Cyril E. King Airport (STT)?
If you booked your DLH to STT flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Travel information

Origin airport
Duluth Intl.
Destination airport
Cyril E. King
Airlines serving
Delta, United
Roundtrip price
$737
Distance
2501 mi

Book with confidence

Book with confidence

Duluth to St. Thomas Flights

The cheapest times to fly from Duluth to St. Thomas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Duluth to St. Thomas are during the month of January. You can find some of the cheapest flights from Duluth to St. Thomas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Duluth to St. Thomas

Sunday is one of the best days to book for cheap flights from Duluth to St. Thomas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Duluth to St. Thomas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Duluth to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $538 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Duluth to St. Thomas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Duluth to St. Thomas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Duluth to St. Thomas Flights

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*Available to One Key members.