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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 10/14. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:59 am - 3:49 pmORD  Chicago O'Hare Intl-ACK Nantucket Memorial
2h 50mnonstop
United Airlines Logo
4:45 pm - 7:00 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
3h 15mnonstop
$303United Airlines
Sat, Sep 5 - Sun, Sep 6
Delta Logo
6:00 am - 11:48 amORD  Chicago O'Hare Intl-ACK Nantucket Memorial
4h 48m1 stop New York LaGuardia
Delta Logo
3:24 pm - 9:52 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
7h 28m1 stop New York John F Kennedy Intl
$308Delta
Wed, Sep 2 - Sat, Sep 5
United Airlines Logo
11:59 am - 3:49 pmORD  Chicago O'Hare Intl-ACK Nantucket Memorial
2h 50mnonstop
United Airlines Logo
4:45 pm - 7:00 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
3h 15mnonstop
$311United Airlines
Sat, Sep 5 - Sun, Sep 6
United Airlines Logo
7:05 am - 3:03 pmORD  Chicago O'Hare Intl-ACK Nantucket Memorial
6h 58m1 stop Newark
United Airlines Logo
4:45 pm - 7:00 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
3h 15mnonstop
$314United Airlines
Wed, Sep 2 - Sat, Sep 5
American Airlines Logo
6:45 am - 1:33 pmORD  Chicago O'Hare Intl-ACK Nantucket Memorial
5h 48m1 stop New York LaGuardia
American Airlines Logo
2:04 pm - 4:43 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
3h 39mnonstop
$348American Airlines
Tue, Aug 25 - Sat, Aug 29
Delta Logo
6:00 am - 2:41 pmORD  Chicago O'Hare Intl-ACK Nantucket Memorial
7h 41m1 stop New York John F Kennedy Intl
Delta Logo
3:24 pm - 9:52 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
7h 28m1 stop New York John F Kennedy Intl
$353Delta
Fri, Aug 28 - Tue, Sep 1
American Airlines Logo
6:00 am - 1:33 pmORD  Chicago O'Hare Intl-ACK Nantucket Memorial
6h 33m1 stop New York LaGuardia
American Airlines Logo
9:51 am - 4:08 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
7h 17m1 stop Washington, D.C. Reagan-National
$358American Airlines
Tue, Aug 25 - Sat, Aug 29
Delta Logo
6:00 am - 2:41 pmORD  Chicago O'Hare Intl-ACK Nantucket Memorial
7h 41m1 stop New York John F Kennedy Intl
Delta Logo
3:24 pm - 11:57 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
9h 33m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson
$359Delta
Fri, Aug 28 - Tue, Sep 1
JetBlue Logo
9:40 am - 3:24 pmORD  Chicago O'Hare Intl-ACK Nantucket Memorial
4h 44m1 stop New York John F Kennedy Intl
JetBlue Logo
12:02 pm - 5:35 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
6h 33m1 stop New York John F Kennedy Intl
$381JetBlue
Sat, Aug 29 - Wed, Sep 2
JetBlue Logo
9:40 am - 3:24 pmORD  Chicago O'Hare Intl-ACK Nantucket Memorial
4h 44m1 stop New York John F Kennedy Intl
JetBlue Logo
12:02 pm - 5:35 pmACK  Nantucket Memorial-ORD Chicago O'Hare Intl
6h 33m1 stop New York John F Kennedy Intl
$383JetBlue
Sat, Aug 29 - Wed, Sep 2

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United Airlines flights from Chicago to Nantucket

Our best United Airlines deals on Chicago to Nantucket flight tickets
United Airlines
Sep 5
ORD11:59 amChicago O'Hare Intl
2h 50m
ACK3:49 pmNantucket Memorial
Sep 6
ACK4:45 pmNantucket Memorial
3h 15m
ORD7:00 pmChicago O'Hare Intl
$303
United Airlines
Sep 5
ORD11:59 amChicago O'Hare Intl
2h 50m
ACK3:49 pmNantucket Memorial
Sep 6
ACK4:45 pmNantucket Memorial
3h 15m
ORD7:00 pmChicago O'Hare Intl
$311
United Airlines
Sep 2
ORD7:05 amChicago O'Hare Intl
6h 58m
1 stop
ACK3:03 pmNantucket Memorial
Sep 5
ACK4:45 pmNantucket Memorial
3h 15m
ORD7:00 pmChicago O'Hare Intl
$314

American Airlines flights from Chicago to Nantucket

Our best American Airlines deals on Chicago to Nantucket flight tickets
American Airlines
Aug 25
ORD6:45 amChicago O'Hare Intl
5h 48m
1 stop
ACK1:33 pmNantucket Memorial
Aug 29
ACK2:04 pmNantucket Memorial
3h 39m
ORD4:43 pmChicago O'Hare Intl
$348
American Airlines
Aug 25
ORD6:00 amChicago O'Hare Intl
6h 33m
1 stop
ACK1:33 pmNantucket Memorial
Aug 29
ACK9:51 amNantucket Memorial
7h 17m
1 stop
ORD4:08 pmChicago O'Hare Intl
$358
American Airlines
Sep 5
ORD9:45 amChicago O'Hare Intl
2h 49m
ACK1:34 pmNantucket Memorial
Sep 6
ACK3:41 pmNantucket Memorial
6h 49m
1 stop
ORD9:30 pmChicago O'Hare Intl
$413

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 August 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

Cheapest round-trip
Quickest round-trip

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Sat 9/5

11:59 am-3:49 pm

Nonstop2h 50m

Nantucket Memorial

Sun 9/6

4:45 pm-7:00 pm

Nonstop3h 15m

$303

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Wed 9/2

6:00 am-11:48 am

1 stop4h 48m

Nantucket Memorial

Sat 9/5

3:24 pm-9:52 pm

1 stop7h 28m

$308

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Sat 9/5

11:59 am-3:49 pm

Nonstop2h 50m

Nantucket Memorial

Sun 9/6

4:45 pm-7:00 pm

Nonstop3h 15m

$311

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Wed 9/2

7:05 am-3:03 pm

1 stop6h 58m

Nantucket Memorial

Sat 9/5

4:45 pm-7:00 pm

Nonstop3h 15m

$314

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Tue 8/25

6:45 am-1:33 pm

1 stop5h 48m

Nantucket Memorial

Sat 8/29

2:04 pm-4:43 pm

Nonstop3h 39m

$348

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Fri 8/28

6:00 am-2:41 pm

1 stop7h 41m

Nantucket Memorial

Tue 9/1

3:24 pm-9:52 pm

1 stop7h 28m

$353

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Tue 8/25

6:00 am-1:33 pm

1 stop6h 33m

Nantucket Memorial

Sat 8/29

9:51 am-4:08 pm

1 stop7h 17m

$358

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Fri 8/28

6:00 am-2:41 pm

1 stop7h 41m

Nantucket Memorial

Tue 9/1

3:24 pm-11:57 pm

2 stops9h 33m

$359

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Sat 8/29

9:40 am-3:24 pm

1 stop4h 44m

Nantucket Memorial

Wed 9/2

12:02 pm-5:35 pm

1 stop6h 33m

$381

ChicagoNantucket

ORD Chicago O'Hare Intl - ACK Nantucket Memorial

ORDACK

Chicago O'Hare Intl

Sat 8/29

9:40 am-3:24 pm

1 stop4h 44m

Nantucket Memorial

Wed 9/2

12:02 pm-5:35 pm

1 stop6h 33m

$383

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

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 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 $744 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 flights?

There is only 1 cabin class available to choose from on Chicago to Nantucket 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 35% 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

Best Price Found

$323

Fastest flight time

2h 50m

Direct flights

Mon and Sun

Airports in Nantucket

1 airport
The best one-way flight to Nantucket from Chicago in the past 72 hours is $323. The best round-trip flight deal from Chicago to Nantucket found on momondo in the last 72 hours is $348.
The fastest flight from Chicago to Nantucket takes 2h 50m
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

Frequently asked questions about flying from Chicago to Nantucket

  • How far is Chicago to Nantucket Memorial by plane?

    Nantucket Memorial is 904.6 mi away from Chicago. 2h 50m 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 $162Free CancellationRating
7.1
3,036 reviews
Search JetBlue flights
DeltaPriceFrom $207Free CancellationRating
7.8
8,503 reviews
Search Delta flights
American AirlinesPriceFrom $319Free CancellationRating
7.1
11,924 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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