$492 Cheap Flights from Nantucket (ACK) to St. Thomas (STT)

View $492 flight on Mon, Dec 22, 2025Opens in a new window

Popular airlines from Nantucket, MA (ACK-Nantucket Memorial) to Cyril E. King Airport (STT)

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Cheap Flights from Nantucket to St. Thomas (ACK-STT)

Prices were available within the past 7 days and start at $492 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT) cost?
Snag a cheap one-way flight from $492 or cheap return flight from Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT)?
is the cheapest month to fly from ACK to STT. Traveling during quieter months is often the key to scoring lower fares.
What is the cheapest airline that flies from Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT)?
To find the cheapest airline that'll fly you from ACK to STT, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT)?
You'll have to take a flight with a layover if you're traveling from Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from ACK to STT?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT)?
Opt for a flight from Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**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 Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT) last-minute?
Booking your flight from ACK to STT right before your journey is usually more expensive. But if there's some wiggle room with your travel times and dates, you could land a cheap last-minute fare.
Is it cheaper to book an ACK to STT flight and hotel package?
Compared with arranging hotels and flights separately, booking an ACK to STT flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place takes the hassle out of travel planning. Simply pick your flights and choose from our wide range of hotels, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Nantucket Memorial Airport (ACK) to Cyril E. King Airport (STT)?
In most instances, you can reschedule or cancel your ACK to STT flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want further information, head to our Customer Service portal.

Travel information

Origin airport
Nantucket Memorial
Destination airport
Cyril E. King
Distance
1612 mi

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Nantucket to St. Thomas Flights

The cheapest times to fly from Nantucket 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 Nantucket to St. Thomas are during the month of . You can find some of the cheapest flights from Nantucket to St. Thomas with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Nantucket 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 Nantucket 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 Nantucket to St. Thomas in 2026. You can also book with separate airlines for your outbound and return journeys, from $492 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 Nantucket 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 Nantucket 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.

 

Nantucket to St. Thomas Flights

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