Title: Cheap flights to Nantucket from Chicago (CHI to ACK) - Expedia.com

![](https://images.trvl-media.com/place/285/e7fbaece-83d0-4f61-81f2-8a09a92b48d7.jpg?impolicy=fcrop&w=1200&h=500&q=medium)

![](https://images.trvl-media.com/place/285/e7fbaece-83d0-4f61-81f2-8a09a92b48d7.jpg?impolicy=fcrop&w=1200&h=500&q=medium)

# $108 Cheap Flights from Chicago (CHI) to Nantucket (ACK)

[View $108 flight on Wed, Aug 19, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:ORD,to:ACK,departure:8/19/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:107.91&airProductToken=AQpBCh4IwmwSAzkwNhiuHCCpUSiJv5UDMJTAlQM4TEAAWAEKHwjCbBIEMjI5MRipUSDAUCjdwJUDMKvBlQM4TEABWAESCggBEAEYASoCQjYYASIECAEQASgEMAE) 

- [Roundtrip](?flightType=roundtrip)
- [One-way](?flightType=oneway)
- [Multi-city](?flightType=multicity)

### Travelers

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## Popular airlines from Chicago to Nantucket, MA (ACK-Nantucket Memorial)

- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg)  
JetBlue Airways  
[](https://www.expedia.com/Flights-Search?leg1=from:CHI,to:ACK,departure:3/12/2026TANYT&leg2=from:ACK,to:CHI,departure:3/19/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}])
- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg)  
Delta  
[](https://www.expedia.com/Flights-Search?leg1=from:CHI,to:ACK,departure:3/12/2026TANYT&leg2=from:ACK,to:CHI,departure:3/19/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}])
- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg)  
United  
[](https://www.expedia.com/Flights-Search?leg1=from:CHI,to:ACK,departure:3/12/2026TANYT&leg2=from:ACK,to:CHI,departure:3/19/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}])
- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg)  
American Airlines  
[](https://www.expedia.com/Flights-Search?leg1=from:CHI,to:ACK,departure:3/12/2026TANYT&leg2=from:ACK,to:CHI,departure:3/19/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}])

## Cheap Flights from Chicago to Nantucket (CHI-ACK)

Prices were available within the past 7 days and start at $108 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All deals

One way

Roundtrip

![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)

Wed, Jun 3 - Tue, Jun 9

ORD

Chicago

ACK

Nantucket

$238

Roundtrip

found 13 hours ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:6/3/2026TANYT&leg2=from:ACK,to:ORD,departure:6/9/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:237.80&airProductToken=AQpECiAIxJgBEgQyNzY3GK4cIMsBKJTbjgMwmNyOAzhFQABYAQogCMSYARIENTg1NhjLASDAUCjR3I4DMJ_djgM4RUABWAEKRAogCMSYARIENTc2NxjAUCDLASijo48DMPSjjwM4RUAAWAEKIAjEmAESBDI1MTMYywEgrhwopKSPAzDJpY8DOEVAAVgBEgoIARABGAEqAkRMGAEiBAgBEAEoBDAB)

![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif)

Wed, Aug 19 - Sat, Aug 22

ORD

Chicago

ACK

Nantucket

$244

Roundtrip

found 2 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:8/19/2026TANYT&leg2=from:ACK,to:ORD,departure:8/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:243.10&airProductToken=AQqZAQoyCMGCARIEMzA0OBiuHCDBkwEo8L2VAzCAv5UDOEJAAFgBagVCQVNJQ3IIT1ZGSFpOQlYKMQjBggESBDExNjQYwZMBIEMot7-VAzCbwJUDOEJAAVgBagVCQVNJQ3IIT1ZGSFpOQlYKMAjBggESBDQ2NDkYQyDAUCiSwZUDMPLBlQM4QkABWAFqBUJBU0lDcghPVkZIWk5CVgpkCjAIwYIBEgQ0NjQ5GMBQIEMo-uOVAzDk5JUDOEJAAFgBagVCQVNJQ3IIT1ZGSFpOQlYKMAjBggESBDI5MDMYQyCuHCih5pUDMKnnlQM4QkABWAFqBUJBU0lDcghPVkZIWk5CVhIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Wed, Aug 5 - Thu, Aug 27

ORD

Chicago

ACK

Nantucket

$245

Roundtrip

found 23 hours ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:8/5/2026TANYT&leg2=from:ACK,to:ORD,departure:8/27/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:244.82&airProductToken=AQpBCh4IwmwSAzkwNhiuHCCpUSjJoZQDMNSilAM4TEAAWAEKHwjCbBIEMjI5MRipUSDAUCido5QDMOujlAM4TEABWAEKQAoeCMJsEgMxOTIYwFAgqVEo5JuWAzConJYDOExAAFgBCh4IwmwSAzgwNRipUSCuHCj1nJYDMKielgM4TEABWAESCggBEAEYASoCQjYYASIECAEQASgEMAE)

![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)

Mon, Aug 10 - Tue, Aug 25

ORD

Chicago

ACK

Nantucket

$263

Roundtrip

found 23 hours ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:8/10/2026TANYT&leg2=from:ACK,to:ORD,departure:8/25/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:262.80&airProductToken=AQpECiAIxJgBEgQyOTg1GK4cIMsBKIvblAMwl9yUAzhFQABYAQogCMSYARIENTczNxjLASDAUCjd3JQDMK3dlAM4RUABWAEKRAogCMSYARIENTcxMhjAUCDLASiJhJYDMN-ElgM4RUAAWAEKIAjEmAESBDEzOTAYywEgrhwokIWWAzC4hpYDOEVAAVgBEgoIARABGAEqAkRMGAEiBAgBEAEoBDAB)

![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)

Wed, Jul 22 - Wed, Jul 29

ORD

Chicago

ACK

Nantucket

$269

Roundtrip

found 2 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:7/22/2026TANYT&leg2=from:ACK,to:ORD,departure:7/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:268.11&airProductToken=AQpuCjUIxJgBEgQyNzY3GK4cIMsBKLSCkwMwuYOTAzhFQABYAWoJTUFJTkJBU0lDcghYRlVOQTBCUQo1CMSYARIENTczNxjLASDAUCjog5MDMLmEkwM4RUABWAFqCU1BSU5CQVNJQ3IIWEZVTkEwQlEKpgEKNQjEmAESBDU3MTIYwFAgywEowdOTAzCX1JMDOEVAAFgBaglNQUlOQkFTSUNyCFZGVk5BMEJRCjUIxJgBEgMzMDgYywEg47QBKO_UkwMw69WTAzhFQAFYAWoJTUFJTkJBU0lDcghWRlZOQTBCUQo2CMSYARIEMTY2OBjjtAEgrhwostaTAzCN15MDOEVAAVgBaglNQUlOQkFTSUNyCFZGVk5BMEJREgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Wed, Aug 12 - Tue, Sep 1

ORD

Chicago

ACK

Nantucket

$274

Roundtrip

found 23 hours ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:8/12/2026TANYT&leg2=from:ACK,to:ORD,departure:9/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:273.83&airProductToken=AQpBCh4IwmwSAzkwNhiuHCCpUSip8JQDMLTxlAM4TEAAWAEKHwjCbBIEMjI5MRipUSDAUCj98ZQDMMvylAM4TEABWAEKQAoeCMJsEgMxOTIYwFAgqVEohNSWAzDI1JYDOExAAFgBCh4IwmwSAzgwNRipUSCuHCiV1ZYDMMjWlgM4TEABWAESCggBEAEYASoCQjYYASIECAEQASgEMAE)

![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)

Tue, Jun 2 - Tue, Jun 9

ORD

Chicago

ACK

Nantucket

$288

Roundtrip

found 13 hours ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:6/2/2026TANYT&leg2=from:ACK,to:ORD,departure:6/9/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:287.80&airProductToken=AQpuCjUIxJgBEgQyNzY3GK4cIMsBKPTPjgMw-NCOAzhFQABYAWoJTUFJTkJBU0lDcghYRlVOQTBCUQo1CMSYARIENTg1NhjLASDAUCix0Y4DMP_RjgM4RUABWAFqCU1BSU5CQVNJQ3IIWEZVTkEwQlEKbgo1CMSYARIENTcxMhjAUCDLASiBoY8DMNehjwM4RUAAWAFqCU1BSU5CQVNJQ3IIWEZVTkEwQlEKNQjEmAESBDEzOTAYywEgrhwo8KKPAzCYpI8DOEVAAVgBaglNQUlOQkFTSUNyCFhGVU5BMEJREgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ)

![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)

Tue, Aug 4 - Fri, Aug 14

ORD

Chicago

ACK

Nantucket

$290

Roundtrip

found 6 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:8/4/2026TANYT&leg2=from:ACK,to:ORD,departure:8/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:289.81&airProductToken=AQpuCjUIxJgBEgQyMjUxGK4cIMsBKKuWlAMwtJeUAzhFQABYAWoJTUFJTkJBU0lDcghUQVVOQTBCUQo1CMSYARIENTg1NhjLASDAUCikmJQDMPOYlAM4RUABWAFqCU1BSU5CQVNJQ3IIVEFVTkEwQlEKbgo1CMSYARIENTcxMhjAUCDLASipiJUDMP-IlQM4RUAAWAFqCU1BSU5CQVNJQ3IIVkZWTkEwQlEKNQjEmAESBDI1MTMYywEgrhwo5IqVAzCJjJUDOEVAAVgBaglNQUlOQkFTSUNyCFZGVk5BMEJREgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ)

![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)

Wed, Jun 10 - Wed, Jun 17

ORD

Chicago

ACK

Nantucket

$293

Roundtrip

found 1 day ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:6/10/2026TANYT&leg2=from:ACK,to:ORD,departure:6/17/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:292.80&airProductToken=AQpECiAIxJgBEgQyNzY3GK4cIMsBKPSpjwMw-aqPAzhFQABYAQogCMSYARIENTczNxjLASDAUCioq48DMPmrjwM4RUABWAEKRAogCMSYARIENTc2NxjAUCDLASij_Y8DMPT9jwM4RUAAWAEKIAjEmAESBDI4MDYYywEgrhwol_-PAzC_gJADOEVAAVgBEgoIARABGAEqAkRMGAEiBAgBEAEoBDAB)

![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif)

Sat, Jul 4 - Sat, Jul 11

ORD

Chicago

ACK

Nantucket

$413

Roundtrip

found 4 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:ACK,departure:7/4/2026TANYT&leg2=from:ACK,to:ORD,departure:7/11/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:412.97&airProductToken=AQo4CjYI1YIBEgQ1NjUxGK4cIMBQKIe6kQMwtbuRAzhOQABYAWoKMV9iYXNpY2Vjb3IITEZBNEFEQk4KOAo2CNWCARIENTMxOBjAUCCuHCiQi5IDMNaMkgM4TkAAWAFqCjFfYmFzaWNlY29yCFdGQTBBREJOEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw)

![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh)

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## Alternative airports near Nantucket

Prices were available within the past 7 days. Prices and availability are subject to change.

[](https://www.expedia.com/Flights-Search?leg1=from:ORD,to:MVY,departure:3/12/2026TANYT&leg2=from:MVY,to:ORD,departure:3/24/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE)

MVY

Martha's Vineyard

[Flights from $539

](https://www.expedia.com/Flights-Search?leg1=from:ORD,to:MVY,departure:3/12/2026TANYT&leg2=from:MVY,to:ORD,departure:3/24/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 

[](https://www.expedia.com/Flights-Search?leg1=from:ORD,to:HYA,departure:3/12/2026TANYT&leg2=from:HYA,to:ORD,departure:3/23/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE)

HYA

Barnstable Municipal

Cheapest

[Flights from $409

](https://www.expedia.com/Flights-Search?leg1=from:ORD,to:HYA,departure:3/12/2026TANYT&leg2=from:HYA,to:ORD,departure:3/23/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 

## Travel information

| Origin airport      | O'Hare Intl.                                      |
| ------------------- | ------------------------------------------------- |
| Destination airport | Nantucket Memorial                                |
| Airlines serving    | American Airlines, Delta, JetBlue Airways, United |
| Roundtrip price     | $238                                              |
| Distance            | 921 mi                                            |

## Book with confidence

# 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 June. 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 2026\. You can also book with separate airlines for your outbound and return journeys, from $108 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](https://www.expedia.com/package-deals). 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.

\*Flight schedules are subject to change.

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\*Available to One Key members.