HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$133+ Cheap flights from Nantucket (ACK) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
ACK — ORD
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Nantucket to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Nantucket to O'Hare Intl

Cheapest flights from Nantucket to O'Hare Intl
Explore the most affordable flight options available from Nantucket to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.

This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/194:32 pm
ACK
-
ORD
Nonstop3h 15m
United Airlines
Wed 9/237:15 am
ORD
-
ACK
1 stop6h 32m
United Airlines
Deal found 2/8$518
This Priceline deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:54 pm
ACK
-
ORD
1 stop7h 42m
Multiple Airlines
Sun 4/269:41 am
ORD
-
ACK
1 stop5h 09m
Multiple Airlines
Deal found 2/11$708

Find flight deals from Nantucket to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Nantucket (ACK) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 12, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$708
(Priceline)

One-way from

$133
(JetBlue)

Popular in

March

Cheapest in

September

Average price

$227
Provider with most accurate pricing for Nantucket Memorial-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Nantucket Memorial-Chicago O'Hare Intl flights.
Search Deals
From Nantucket Memorial to Chicago O'Hare Intl
Search Deals
One-way flight from Nantucket Memorial to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Nantucket to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from Nantucket to Chicago O'Hare Intl Airport that are best for you.

Fly from

Nantucket

Fly to

O'Hare Intl

Route

Depart

Return

Price

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

Fri 4/24

2:54 pm-9:36 pm

1 stop7h 42m

Chicago O'Hare Intl

Sun 4/26

9:41 am-3:50 pm

1 stop5h 09m

$708

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

Tue 8/11

4:20 pm-8:44 pm

1 stop5h 24m

$133

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

Wed 8/5

4:51 pm-8:45 pm

1 stop4h 54m

$153

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

Tue 8/11

10:00 am-8:17 pm

2 stops11h 17m

$159

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

Sat 8/8

5:14 pm-11:25 pm

1 stop7h 11m

$184

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

Thu 8/6

1:38 pm-5:52 pm

1 stop5h 14m

$188

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

Mon 8/10

1:38 pm-5:52 pm

1 stop5h 14m

$189

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

Mon 8/10

4:20 pm-8:44 pm

1 stop5h 24m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

  • Most accurate provider: When it comes to deals on Nantucket-Chicago O'Hare Intl Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Nantucket-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Nantucket-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Nantucket-Chicago O'Hare Intl Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Nantucket-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Nantucket to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Nantucket with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Nantucket to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Nantucket to Chicago O'Hare Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Nantucket to Chicago O'Hare Intl Airport (average of $90). Flying from Nantucket to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $134). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Nantucket to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Nantucket to Chicago O'Hare Intl?

    Nantucket Memorial (ACK) is the airport you will fly out of if you book a flight from Nantucket to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from Memorial; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Nantucket airport to Chicago O'Hare Intl. It is only a 2.8 mi journey to Memorial (ACK) from Nantucket’s city center.

  • Can I find deals for flights from Nantucket to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Nantucket to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Nantucket to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Nantucket to O'Hare Intl.

  • Can I find deals for business class flights from Nantucket to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Nantucket to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Nantucket to Chicago O'Hare Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Nantucket to Chicago O'Hare Intl Airport (average of $90). Flying from Nantucket to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $134). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Naperville
Gurnee
Elgin
Hoffman Estates
Beloit
Delavan
Oak Brook
Des Plaines
Downers Grove
Elk Grove Village
Skokie
Libertyville
Lake Geneva
Waukegan
Bridgeview
Kenosha
Warrenville
Aurora

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.