$249 Cheap Flights from Baltimore (BWI) to Nantucket (ACK)

View $249 flight on Fri, Sep 4, 2026Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Nantucket, MA (ACK-Nantucket Memorial)

Cheap Flights from Baltimore to Nantucket (BWI-ACK)

Prices were available within the past 7 days and start at $249 for one-way flights and $453 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, May 27 - Tue, Jun 16
BWI
Baltimore
ACK
Nantucket
$453 Roundtrip, found 2 days ago
$453
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 27 from Baltimore to Nantucket, returning Tue, Jun 16, priced at $453 found 2 days ago
Delta
Tue, May 26 - Wed, Jun 10
BWI
Baltimore
ACK
Nantucket
$468 Roundtrip, found 2 days ago
$468
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, May 26 from Baltimore to Nantucket, returning Wed, Jun 10, priced at $468 found 2 days ago
Delta
Sat, May 23 - Wed, Jun 10
BWI
Baltimore
ACK
Nantucket
$477 Roundtrip, found 2 days ago
$477
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, May 23 from Baltimore to Nantucket, returning Wed, Jun 10, priced at $477 found 2 days ago
Delta
Wed, May 27 - Sat, Jun 13
BWI
Baltimore
ACK
Nantucket
$480 Roundtrip, found 2 days ago
$480
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 27 from Baltimore to Nantucket, returning Sat, Jun 13, priced at $480 found 2 days ago
Delta
Wed, May 27 - Wed, Jun 17
BWI
Baltimore
ACK
Nantucket
$482 Roundtrip, found 2 days ago
$482
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 27 from Baltimore to Nantucket, returning Wed, Jun 17, priced at $482 found 2 days ago
Delta
Wed, May 27 - Fri, Jun 19
BWI
Baltimore
ACK
Nantucket
$515 Roundtrip, found 2 days ago
$515
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 27 from Baltimore to Nantucket, returning Fri, Jun 19, priced at $515 found 2 days ago
Delta
Tue, May 26 - Tue, Jun 9
BWI
Baltimore
ACK
Nantucket
$539 Roundtrip, found 2 days ago
$539
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, May 26 from Baltimore to Nantucket, returning Tue, Jun 9, priced at $539 found 2 days ago
Delta
Sat, May 23 - Tue, Jun 9
BWI
Baltimore
ACK
Nantucket
$548 Roundtrip, found 2 days ago
$548
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, May 23 from Baltimore to Nantucket, returning Tue, Jun 9, priced at $548 found 2 days ago
Delta
Wed, May 27 - Thu, Jun 18
BWI
Baltimore
ACK
Nantucket
$555 Roundtrip, found 2 days ago
$555
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 27 from Baltimore to Nantucket, returning Thu, Jun 18, priced at $555 found 2 days ago
United
Mon, Jun 8 - Fri, Jun 12
BWI
Baltimore
ACK
Nantucket
$1,399 Roundtrip, found 5 days ago
$1,399
Roundtrip
found 5 days ago
Select United flight, departing Mon, Jun 8 from Baltimore to Nantucket, returning Fri, Jun 12, priced at $1,399 found 5 days ago

Alternative airports near Nantucket

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Martha's Vineyard MVY. Cheapest option available. Flights from $702
MVY
Martha's Vineyard
Cheapest
Flights from $702

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK) cost?
Grab a cheap one-way flight from $249 or cheap return flight from $453 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK)?
Planning your trip for May may help you find better deals, as it's the cheapest month for flights between BWI and ACK. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK)?
To find the cheapest airline that'll fly you from BWI to ACK, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK)?
There are no daily nonstop flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from BWI to ACK?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on a number 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK)?
Opt for a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK) last-minute?
Last-minute fares from BWI to ACK are usually more expensive. To secure the cheapest rates, start searching for flights early. That said, if you can play around with your travel dates, you may land a cheap ticket right before your journey.
Is it cheaper to book a BWI to ACK flight and hotel package?
You can save money by booking a BWI 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 simple to manage everything in one place. Once you've selected your ideal flights and accommodations, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Nantucket Memorial Airport (ACK)?
If you booked your BWI to ACK flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Nantucket Memorial
Roundtrip price
$453
Distance
376 mi

Book with confidence

Baltimore to Nantucket Flights

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

 

The best time to book a flight from Baltimore to Nantucket

Sunday is one of the best days to book for cheap flights from Baltimore 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 Baltimore 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 Baltimore to Nantucket in 2025. You can also book with separate airlines for your outbound and return journeys, from $249 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 Baltimore 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 Baltimore 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.

 

Baltimore to Nantucket Flights

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*Available to One Key members.