$121 Cheap Flights from Denver (DEN) to Nantucket (ACK)

View $121 flight on Tue, Jul 8, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Nantucket, MA (ACK-Nantucket Memorial)

Find available prices by choosing your travel dates.

Cheap Flights from Denver to Nantucket (DEN-ACK)

Prices were available within the past 7 days and start at $121 for one-way flights and $230 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Tue, Jul 8 - Sat, Jul 19
DEN
Denver
ACK
Nantucket
$230 Roundtrip, found 4 hours ago
$230
Roundtrip
found 4 hours ago
Select JetBlue Airways flight, departing Tue, Jul 8 from Denver to Nantucket, returning Sat, Jul 19, priced at $230 found 4 hours ago
JetBlue Airways
Sun, Jun 29 - Mon, Jun 30
DEN
Denver
ACK
Nantucket
$240 Roundtrip, found 9 hours ago
$240
Roundtrip
found 9 hours ago
Select JetBlue Airways flight, departing Sun, Jun 29 from Denver to Nantucket, returning Mon, Jun 30, priced at $240 found 9 hours ago
Delta
Tue, Jun 3 - Wed, Jun 4
DEN
Denver
ACK
Nantucket
$246 Roundtrip, found 11 hours ago
$246
Roundtrip
found 11 hours ago
Select Delta flight, departing Tue, Jun 3 from Denver to Nantucket, returning Wed, Jun 4, priced at $246 found 11 hours ago
Delta
Wed, Jun 25 - Tue, Jul 1
DEN
Denver
ACK
Nantucket
$248 Roundtrip, found 21 hours ago
$248
Roundtrip
found 21 hours ago
Select Delta flight, departing Wed, Jun 25 from Denver to Nantucket, returning Tue, Jul 1, priced at $248 found 21 hours ago
JetBlue Airways
Mon, Jul 7 - Tue, Jul 8
DEN
Denver
ACK
Nantucket
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Mon, Jul 7 from Denver to Nantucket, returning Tue, Jul 8, priced at $250 found 1 day ago
Delta
Tue, Jun 24 - Fri, Jul 4
DEN
Denver
ACK
Nantucket
$252 Roundtrip, found 9 hours ago
$252
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, Jun 24 from Denver to Nantucket, returning Fri, Jul 4, priced at $252 found 9 hours ago
JetBlue Airways
Thu, Jun 19 - Wed, Jun 25
DEN
Denver
ACK
Nantucket
$254 Roundtrip, found 8 hours ago
$254
Roundtrip
found 8 hours ago
Select JetBlue Airways flight, departing Thu, Jun 19 from Denver to Nantucket, returning Wed, Jun 25, priced at $254 found 8 hours ago
Delta
Mon, Jun 2 - Fri, Jun 13
DEN
Denver
ACK
Nantucket
$262 Roundtrip, found 11 hours ago
$262
Roundtrip
found 11 hours ago
Select Delta flight, departing Mon, Jun 2 from Denver to Nantucket, returning Fri, Jun 13, priced at $262 found 11 hours ago
American Airlines
Tue, Jul 15 - Tue, Jul 29
DEN
Denver
ACK
Nantucket
$284 Roundtrip, found 4 days ago
$284
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Jul 15 from Denver to Nantucket, returning Tue, Jul 29, priced at $284 found 4 days ago
United
Tue, Sep 2 - Tue, Sep 9
DEN
Denver
ACK
Nantucket
$429 Roundtrip, found 4 days ago
$429
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 2 from Denver to Nantucket, returning Tue, Sep 9, priced at $429 found 4 days ago
Flights from Denver (DEN) to Nantucket (ACK)
Origin airport
Denver Intl.
Destination airport
Nantucket Memorial
Airlines serving
American Airlines, Delta, JetBlue Airways, United
Roundtrip price
$230
Distance
1807 mi

Denver to Nantucket Flights

The cheapest times to fly from Denver to Nantucket

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 Denver to Nantucket are during the month of July. You can find some of the cheapest flights from Denver to Nantucket with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Denver to Nantucket

Sunday is one of the best days to book for cheap flights from Denver to Nantucket: 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 Denver to Nantucket

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 Denver to Nantucket in 2025. You can also book with separate airlines for your outbound and return journeys, from $121 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 Denver to Nantucket 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 Denver to Nantucket 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.

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Nantucket Memorial Airport (ACK) cost?
Discover the latest flight deals from DEN to ACK by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from DEN to ACK?
The cheapest flights from DEN to ACK are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from DEN to ACK?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from DEN to ACK. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Denver Intl. Airport (DEN) to Nantucket Memorial Airport (ACK)?
Nonstop flights from Denver Intl. Airport (DEN) to Nantucket Memorial Airport (ACK) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filters. Enter your travel details and select either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from DEN to ACK?
Usually you’ll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Denver Intl. Airport (DEN) to Nantucket Memorial Airport (ACK)?
To avoid possible delays on the Denver Intl. Airport (DEN) to Nantucket Memorial Airport (ACK) route, travel before 3 PM. Flights after this time are 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 Denver Intl. Airport (DEN) to Nantucket Memorial Airport (ACK) last-minute?
Holding off until just before your trip to book a ticket from DEN to ACK often results in higher prices. While it’s possible to find some last-minute discounts, there’s no guarantee. Allow some flexibility in your schedule for the best chance of snagging a bargain.
Is it cheaper to book a DEN to ACK flight and hotel package?
You’ll generally save money by securing a DEN to ACK flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one place. After choosing your ideal accommodations and flights, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Nantucket Memorial Airport (ACK)?
If you booked your DEN to ACK flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare 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, visit our Customer Service portal if you want more information.

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*Available to One Key members.