$96 Cheap Flights from Chicago (ORD) to Nantucket (ACK)

View $96 flight on Tue, Sep 30, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Nantucket, MA (ACK-Nantucket Memorial)

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Cheap Flights from Chicago to Nantucket (ORD-ACK)

Prices were available within the past 7 days and start at $96 for one-way flights and $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Wed, Aug 27 - Sat, Aug 30
ORD
Chicago
ACK
Nantucket
$209 Roundtrip, found 3 days ago
$209
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Wed, Aug 27 from Chicago to Nantucket, returning Sat, Aug 30, priced at $209 found 3 days ago
JetBlue Airways
Tue, Sep 23 - Wed, Oct 1
ORD
Chicago
ACK
Nantucket
$232 Roundtrip, just found
$232
Roundtrip
just found
Select JetBlue Airways flight, departing Tue, Sep 23 from Chicago to Nantucket, returning Wed, Oct 1, priced at $232 just found
JetBlue Airways
Wed, Aug 13 - Fri, Sep 5
ORD
Chicago
ACK
Nantucket
$237 Roundtrip, found 3 days ago
$237
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Wed, Aug 13 from Chicago to Nantucket, returning Fri, Sep 5, priced at $237 found 3 days ago
JetBlue Airways
Wed, Aug 20 - Fri, Aug 22
ORD
Chicago
ACK
Nantucket
$242 Roundtrip, found 4 days ago
$242
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Wed, Aug 20 from Chicago to Nantucket, returning Fri, Aug 22, priced at $242 found 4 days ago
JetBlue Airways
Tue, Aug 26 - Sat, Aug 30
ORD
Chicago
ACK
Nantucket
$242 Roundtrip, found 3 days ago
$242
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Aug 26 from Chicago to Nantucket, returning Sat, Aug 30, priced at $242 found 3 days ago
Delta
Wed, Aug 20 - Tue, Aug 26
ORD
Chicago
ACK
Nantucket
$248 Roundtrip, found 1 day ago
$248
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 20 from Chicago to Nantucket, returning Tue, Aug 26, priced at $248 found 1 day ago
JetBlue Airways
Tue, Aug 19 - Fri, Sep 5
ORD
Chicago
ACK
Nantucket
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Tue, Aug 19 from Chicago to Nantucket, returning Fri, Sep 5, priced at $249 found 1 day ago
JetBlue Airways
Tue, Aug 26 - Wed, Sep 3
ORD
Chicago
ACK
Nantucket
$252 Roundtrip, found 3 days ago
$252
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Aug 26 from Chicago to Nantucket, returning Wed, Sep 3, priced at $252 found 3 days ago
American Airlines
Mon, Aug 25 - Sat, Aug 30
ORD
Chicago
ACK
Nantucket
$324 Roundtrip, found 1 day ago
$324
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Aug 25 from Chicago to Nantucket, returning Sat, Aug 30, priced at $324 found 1 day ago
United
Sat, Aug 16 - Wed, Aug 20
ORD
Chicago
ACK
Nantucket
$339 Roundtrip, found 5 days ago
$339
Roundtrip
found 5 days ago
Select United flight, departing Sat, Aug 16 from Chicago to Nantucket, returning Wed, Aug 20, priced at $339 found 5 days ago

Find the cheapest month to fly from Chicago (ORD) to Nantucket (ACK)

July is typically the cheapest month to fly

From $192 - $559 per traveler.

Graph displaying average flight prices per month

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. Flights from $540
MVY
Martha's Vineyard
Flights from $540
Select flight to Barnstable Municipal HYA. Cheapest option available. Flights from $502
HYA
Barnstable Municipal
Cheapest
Flights from $502
Flights from Chicago (ORD) to Nantucket (ACK)
Origin airport
O'Hare Intl.
Destination airport
Nantucket Memorial
Airlines serving
American Airlines, Delta, JetBlue Airways, United
Roundtrip price
$209
Distance
921 mi
Average flight time
3 hours 48 mins

Chicago to Nantucket Flights

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

 

The best time to book a flight from Chicago to Nantucket

Sunday is one of the best days to book for cheap flights from Chicago 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 Chicago 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 Chicago to Nantucket in 2025. You can also book with separate airlines for your outbound and return journeys, from $96 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 Chicago 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 Chicago 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 O'Hare Intl. Airport (ORD) to Nantucket Memorial Airport (ACK) cost?
You can land cheap return fares from O'Hare Intl. Airport (ORD) to Nantucket Memorial Airport (ACK) starting from $389. Snag a seat and set off on your next adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving ORD on August 2 2025 and touching down at ACK. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from ORD to ACK?
The cheapest flights from ORD 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 ORD to ACK?
Travel from ORD to ACK with United. This carrier currently offers the cheapest one-way ticket for this route, starting from $229. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on August 17 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from O'Hare Intl. Airport (ORD) to Nantucket Memorial Airport (ACK)?
There aren't any daily direct flights departing from O'Hare Intl. Airport (ORD) to Nantucket Memorial Airport (ACK). But you can book flights with layovers. Filter your search 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 ORD to ACK?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from ORD to ACK?
Consider traveling with American Airlines if you'd like to go straight from O'Hare Intl. Airport (ORD) to Nantucket Memorial Airport (ACK) without any interruptions. This carrier has the strongest track record for punctuality, with an on-time performance of 82%. Want to be updated if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Nantucket Memorial Airport (ACK)?
To avoid possible delays on the O'Hare Intl. Airport (ORD) to Nantucket Memorial Airport (ACK) route, travel before 3 PM. Departures after this hour 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 O'Hare Intl. Airport (ORD) to Nantucket Memorial Airport (ACK) last-minute?
Holding off until just before your trip to book a flight from ORD to ACK often results in higher prices. While you may find some last-minute discounts, they aren't always guaranteed. Allow some flexibility in your schedule to maximize your chances of scoring a bargain.
Is it cheaper to book an ORD to ACK flight and hotel package?
Securing an ORD to ACK flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our wide range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Nantucket Memorial Airport (ACK)?
Typically, you can cancel or reschedule your ORD to ACK flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more details, go to our Customer Service portal.

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Nantucket nearby Airports

Vineyard Haven

Chicago to Martha's Vineyard
$258.61

Hyannis

Chicago to Barnstable Municipal
$261.87
Chicago nearby Airports

Chicago

Midway Intl. to Nantucket
$323.37
*Available to One Key members.