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Cheap flights from Chicago to Boston from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Boston departing on 8/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:30 am - 1:27 pm
ORD
-
ACK
4h 57m
1 stop
Delta Logo
12:01 pm - 6:41 pm
ACK
-
ORD
7h 40m
2 stops
$244Delta
Tue, Jul 21 - Wed, Jul 29
Delta Logo
9:35 am - 4:03 pm
ORD
-
ACK
5h 28m
1 stop
Delta Logo
12:01 pm - 6:41 pm
ACK
-
ORD
7h 40m
2 stops
$254Delta
Tue, Jul 21 - Wed, Jul 29
American Airlines Logo
6:48 am - 1:49 pm
ORD
-
ACK
6h 01m
1 stop
American Airlines Logo
2:19 pm - 8:50 pm
ACK
-
ORD
7h 31m
1 stop
$263American Airlines
Tue, Jul 21 - Wed, Jul 29
Delta Logo
6:00 am - 4:03 pm
ORD
-
ACK
9h 03m
2 stops
Delta Logo
12:01 pm - 6:41 pm
ACK
-
ORD
7h 40m
2 stops
$296Delta
Tue, Jul 21 - Wed, Jul 29
Delta Logo
6:00 am - 4:03 pm
ORD
-
ACK
9h 03m
2 stops
Delta Logo
12:01 pm - 6:41 pm
ACK
-
ORD
7h 40m
2 stops
$304Delta
Tue, Jul 21 - Wed, Jul 29
Delta Logo
6:00 am - 4:03 pm
ORD
-
ACK
9h 03m
2 stops
Delta Logo
12:01 pm - 6:41 pm
ACK
-
ORD
7h 40m
2 stops
$338Delta
Tue, Jul 21 - Wed, Jul 29
American Airlines Logo
6:00 am - 1:49 pm
ORD
-
ACK
6h 49m
1 stop
American Airlines Logo
5:14 pm - 11:25 pm
ACK
-
ORD
7h 11m
1 stop
$403American Airlines
Sat, Aug 1 - Sat, Aug 8
American Airlines Logo
8:00 am - 4:28 pm
ORD
-
ACK
7h 28m
1 stop
American Airlines Logo
5:14 pm - 11:25 pm
ACK
-
ORD
7h 11m
1 stop
$408American Airlines
Sat, Aug 1 - Sat, Aug 8
American Airlines Logo
6:34 am - 2:34 pm
ORD
-
ACK
7h 00m
1 stop
American Airlines Logo
10:24 am - 2:04 pm
ACK
-
ORD
4h 40m
1 stop
$458American Airlines
Fri, Jul 24 - Mon, Jul 27
American Airlines Logo
8:00 am - 11:46 am
ORD
-
ACK
2h 46mnonstop
American Airlines Logo
10:23 am - 3:39 pm
ACK
-
ORD
6h 16m
1 stop
$472American Airlines
Sat, Jun 20 - Sat, Jun 27

Delta flights from Chicago to Nantucket

Our best Delta deals on Chicago to Nantucket flight tickets
Delta
Jul 21
ORD10:35 amChicago O'Hare Intl
4h 28m
1 stop
ACK4:03 pmNantucket Memorial
Jul 29
ACK12:01 pmNantucket Memorial
7h 40m
2 stops
ORD6:41 pmChicago O'Hare Intl
$244
Delta
Jul 21
ORD7:30 amChicago O'Hare Intl
4h 57m
1 stop
ACK1:27 pmNantucket Memorial
Jul 29
ACK12:01 pmNantucket Memorial
7h 40m
2 stops
ORD6:41 pmChicago O'Hare Intl
$254
Delta
Jul 21
ORD6:00 amChicago O'Hare Intl
9h 03m
2 stops
ACK4:03 pmNantucket Memorial
Jul 29
ACK12:01 pmNantucket Memorial
7h 40m
2 stops
ORD6:41 pmChicago O'Hare Intl
$296

American Airlines flights from Chicago to Nantucket

Our best American Airlines deals on Chicago to Nantucket flight tickets
American Airlines
Jul 21
ORD6:00 amChicago O'Hare Intl
6h 49m
1 stop
ACK1:49 pmNantucket Memorial
Jul 29
ACK2:19 pmNantucket Memorial
7h 31m
1 stop
ORD8:50 pmChicago O'Hare Intl
$263
American Airlines
Aug 1
ORD6:00 amChicago O'Hare Intl
6h 49m
1 stop
ACK1:49 pmNantucket Memorial
Aug 8
ACK5:14 pmNantucket Memorial
7h 11m
1 stop
ORD11:25 pmChicago O'Hare Intl
$403
American Airlines
Aug 1
ORD8:00 amChicago O'Hare Intl
7h 28m
1 stop
ACK4:28 pmNantucket Memorial
Aug 8
ACK5:14 pmNantucket Memorial
7h 11m
1 stop
ORD11:25 pmChicago O'Hare Intl
$408

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Nantucket 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, momondo users made 832,500 searches. Data last updated February 13, 2026.
Use the filters below to find and compare flights from Chicago to Nantucket that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Tue 7/21

7:30 am-1:27 pm

1 stop4h 57m

Nantucket Memorial

Wed 7/29

12:01 pm-6:41 pm

2 stops7h 40m

$244

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Tue 7/21

9:35 am-4:03 pm

1 stop5h 28m

Nantucket Memorial

Wed 7/29

12:01 pm-6:41 pm

2 stops7h 40m

$254

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Tue 7/21

6:48 am-1:49 pm

1 stop6h 01m

Nantucket Memorial

Wed 7/29

2:19 pm-8:50 pm

1 stop7h 31m

$263

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Tue 7/21

6:00 am-4:03 pm

2 stops9h 03m

Nantucket Memorial

Wed 7/29

12:01 pm-6:41 pm

2 stops7h 40m

$296

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Tue 7/21

6:00 am-4:03 pm

2 stops9h 03m

Nantucket Memorial

Wed 7/29

12:01 pm-6:41 pm

2 stops7h 40m

$304

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Tue 7/21

6:00 am-4:03 pm

2 stops9h 03m

Nantucket Memorial

Wed 7/29

12:01 pm-6:41 pm

2 stops7h 40m

$338

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Sat 8/1

6:00 am-1:49 pm

1 stop6h 49m

Nantucket Memorial

Sat 8/8

5:14 pm-11:25 pm

1 stop7h 11m

$403

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Sat 8/1

8:00 am-4:28 pm

1 stop7h 28m

Nantucket Memorial

Sat 8/8

5:14 pm-11:25 pm

1 stop7h 11m

$408

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Fri 7/24

6:34 am-2:34 pm

1 stop7h 00m

Nantucket Memorial

Mon 7/27

10:24 am-2:04 pm

1 stop4h 40m

$458

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Sat 6/20

8:00 am-11:46 am

Nonstop2h 46m

Nantucket Memorial

Sat 6/27

10:23 am-3:39 pm

1 stop6h 16m

$472

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Chicago to Nantucket

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Nantucket?

The cheapest day to depart on your flight to Nantucket is on a Saturday when prices can be found for as low as $549. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $628.

What is the cheapest time of day to depart on your flight to Nantucket?

At noon is the cheapest time of day to fly from Chicago to Nantucket when you can find flight prices for as low as $499. Flying to Nantucket at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $619 on average. Flights to Nantucket from Chicago in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Chicago to Nantucket Memorial flight route?

Fly from Chicago O'Hare Intl to Nantucket Memorial for the best Chicago - Nantucket Memorial flight prices

What cabin class options are available on Chicago to Nantucket Memorial flights?

There is only 1 cabin class available to choose from on Chicago to Nantucket Memorial flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago to Nantucket flights?

You could potentially save up to 12% on your flight if you consider stops on a Chicago to Nantucket flight.

When to book flights from Chicago to Nantucket

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Nantucket according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Nantucket (CHI to ACK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Nantucket

Fastest flight time

2h 46m

Direct flights

Mon and Sun

Airports in Nantucket

1 airport
The fastest flight from Chicago to Nantucket takes 2h 46m
Direct flights go from Chicago to Nantucket on Monday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Nantucket. From Chicago there are direct flights to Nantucket Memorial (ACK).
Search flight deals

  • How far is Chicago to Nantucket Memorial by plane?

    Nantucket Memorial is 904.6 mi away from Chicago. 2h 46m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Chicago to Nantucket Memorial Airport?

    Prices for flights from Chicago to Nantucket Memorial Airport are updated daily.

  • How many operators does momondo search for flights from Chicago to Nantucket Memorial Airport?

  • How old do you have to be to fly from Chicago to Nantucket Memorial Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Nantucket Memorial Airport.

  • What documentation or ID do you need to fly to Nantucket Memorial Airport?

    The necessary travel and health documents for your Nantucket Memorial Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to Nantucket?

  • What is the most popular airline from Chicago to Nantucket?

Best airlines flying from Chicago to Nantucket

Compare and see reviews for airlines that fly from Chicago to Nantucket with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $123Free CancellationRating
7.2
2,897 reviews
Search JetBlue flights
United AirlinesPriceFrom $304Free CancellationRating
7.4
9,284 reviews
Search United Airlines flights
American AirlinesPriceFrom $319Free CancellationRating
7.2
11,279 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Nantucket?

Finding the right flight to Nantucket from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Nantucket quick and easy, saving you time and money.

Can I find flights from Chicago to Nantucket with flexible booking policies on momondo?

Yes. All flights to Nantucket from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to Nantucket?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Nantucket.

I’m not ready to book a flight from Chicago to Nantucket right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Nantucket flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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