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O'Hare Intl

$136+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
ACK — ORD
août 19 — août 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheap 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 août 14, 2025.

Round-trip from

$278
(American Airlines)

One-way from

$136
(JetBlue)

Popular in

March

Cheapest in

September

Average price

$223

Good one-way deal

$633 or less
From Nantucket Memorial to Chicago O'Hare Intl
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One-way flight from Nantucket Memorial to Chicago O'Hare Intl
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Highest demand for flights based on searches. 8% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a one-way flight from Nantucket Memorial to Chicago O'Hare Intl.
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Find 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 août 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 8/285:16 pmACK - ORD
1 stop7h 09mAmerican Airlines
lun. 9/16:06 amORD - ACK
1 stop4h 47mAmerican Airlines
Deal found 8/13$278
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 8/223:26 pmACK - ORD
1 stop7h 27mDelta
mar. 8/267:00 amORD - ACK
1 stop6h 46mDelta
Deal found 8/12$318
This United Airlines deal was found by Cheapflights users on 8/14. 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.
ven. 9/124:31 pmACK - ORD
1 stop7h 54mUnited Airlines
lun. 9/156:10 pmORD - ACK
2 stops14h 45mUnited Airlines
Deal found 8/14$532
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/124:10 pmACK - ORD
1 stop5h 39mJetBlue
lun. 9/159:51 amORD - ACK
1 stop4h 22mJetBlue
Deal found 8/14$658
This United Airlines deal was found by Cheapflights users on 8/13. 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.
jeu. 8/2810:30 amACK - ORD
2 stops11h 46mUnited Airlines
lun. 9/11:55 pmORD - ACK
2 stops19h 00mUnited Airlines
Deal found 8/13$688
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/128:08 amACK - ORD
2 stops14h 50mMultiple Airlines
lun. 9/1511:13 amORD - ACK
3 stops27h 00mMultiple Airlines
Deal found 8/14$837

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 août 14, 2025.
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

jeu. 8/28

5:16 pm-11:25 pm

1 stop7h 09m

Chicago O'Hare Intl

lun. 9/1

6:06 am-11:53 am

1 stop4h 47m

$278

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

ven. 9/12

4:31 pm-11:25 pm

1 stop7h 54m

Chicago O'Hare Intl

lun. 9/15

6:10 pm-9:55 am

2 stops14h 45m

$532

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

ven. 9/12

4:10 pm-8:49 pm

1 stop5h 39m

Chicago O'Hare Intl

lun. 9/15

9:51 am-3:13 pm

1 stop4h 22m

$658

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

jeu. 8/28

10:30 am-9:16 pm

2 stops11h 46m

Chicago O'Hare Intl

lun. 9/1

1:55 pm-9:55 am

2 stops19h 00m

$688

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

ven. 9/12

8:08 am-9:58 pm

2 stops14h 50m

Chicago O'Hare Intl

lun. 9/15

11:13 am-3:13 pm

3 stops27h 00m

$837

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

ven. 9/12

4:10 pm-8:49 pm

1 stop5h 39m

$136

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

jeu. 10/2

4:10 pm-8:49 pm

1 stop5h 39m

$168

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

mar. 10/14

12:29 pm-5:55 pm

1 stop6h 26m

$234

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

ven. 9/12

10:55 am-9:58 pm

2 stops36h 03m

$235

NantucketChicago

ACK - ORD

ACKORD

Nantucket Memorial

jeu. 9/11

4:16 pm-9:53 am

2 stops18h 37m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 12 results
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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, August is the cheapest month in which you can book a flight from Nantucket to Chicago O'Hare Intl Airport (average of $245). Flying from Nantucket to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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.

What is the cheapest time of day to fly from ACK to ORD?

Find hourly flight availability from Nantucket to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated août 14, 2025.

When flying from Nantucket to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

  • What are the most reliable airlines from Nantucket to Chicago O'Hare Intl Airport?

    The top 3 most reliable airlines when flying from Nantucket to Chicago O'Hare Intl Airport are SkyWest Airlines (40%), United Airlines (40%) and American Airlines (17%).

  • What are the cheapest flights from Nantucket to Chicago O'Hare Intl Airport?

    On average you can expect to pay $633 for a flight from Nantucket to Chicago O'Hare Intl Airport. The cheapest flight overall is $493 while the most popular route, (Nantucket Memorial - Chicago O'Hare Intl) is currently priced at $358.

  • 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, August is the cheapest month in which you can book a flight from Nantucket to Chicago O'Hare Intl Airport (average of $245). Flying from Nantucket to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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
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Gurnee
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Rockford
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