C$239 Cheap Flights from Chicago (CHIA) to Nantucket (ACK)

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Find the cheapest month or even day of the year to fly to Nantucket

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Flight deals from Chicago to Nantucket

Looking for a cheap last-minute deal or the best return flight from Chicago to Nantucket Airport? If you want to travel next month, return fares start from C$371. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Nantucket

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Nantucket flights are currently cheapest in July.

Which airlines fly from Chicago to Nantucket?

Chicago to Nantucket: Alternative routes

Compare routes from Chicago to Nantucket below. You may find an airport to fly into that's cheaper, faster, or easier than Nantucket.

Chicago to Nantucket: Flight information

The things to know before you go.
Cheapest flight foundC$239
Cheapest month to flyJuly
Average flight time2 hrs, 54 mins
Most popular airlineUnited
Average flights per week6

Finding cheap flights from Chicago to Nantucket: Frequently asked questions

The best price we found for a return flight from Chicago to Nantucket is C$360. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 54 minutes is the average flight time from Chicago to Nantucket.
United, SkyWest Airlines and Republic Airways fly direct from Chicago to Nantucket.
As of June 2026, there are 6 flights per week flying from Chicago to Nantucket.
The cheapest month to fly from Chicago to Nantucket is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Nantucket Airport on Tuesday, August 4, 2026.
Yes – the average flight time is 2 hours and 54 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Nantucket but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Nantucket is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Chicago to Nantucket Memorial Airport (ACK): what you need to know

  • Start planning your vacation by checking out the most convenient departure point for your flight from Chicago to Nantucket Memorial Airport (ACK). Explore the options for taking off from O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW), two of the city's main airports.

  • Nantucket Memorial Airport is located in Nantucket. The city operates in the UTC-4 timezone and is 1 hour ahead of Chicago.

  • Leave plenty of time to make your flight from Chicago to ACK. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • With more travellers during busy periods like August, get to the terminal earlier than usual. Two hours for domestic flights and up to four for international journeys will help you deal with any delays. Remember things also get busy during major holidays like Fourth of July.

Airports in Chicago

O'Hare International Airport (ORD)

Chicago Midway International Airport (MDW)

  • Looking to fly out of Chicago Midway International Airport (MDW)? You can book a direct flight from Chicago to Nantucket Memorial Airport (ACK) out of this busy hub.

  • United offers direct flights from Chicago to ACK departing from MDW. Book your preferred aisle seat and get to your destination without any detours.

  • MDW is about 19 kilometres from central Chicago. It'll take you 21 minutes or so to get to the airport by car from the city centre. Public transport takes approximately 46 minutes.

  • You're off on vacation, so why not extend it with another night away? Consider kicking back in one of these hotels near Chicago Midway International Airport the day before your flight from Chicago to ACK:

About Nantucket Memorial Airport (ACK)

Getting from Nantucket Memorial Airport (ACK) to central Nantucket

  • Nantucket Memorial Airport is approximately 5 kilometres from central Nantucket. With a cab or in your own car rental, the drive is around 10 minutes.

  • Travelling by public transport typically takes 36 minutes.

How to find the cheapest flights from Chicago to Nantucket Memorial Airport (ACK)

  • C$239 is the cheapest price we've found for a one-way ticket from Chicago to Nantucket Memorial Airport. Return flights start from C$360. Fares are subject to availability and may change at any time.

  • Don't leave everything to the last moment. You're more likely to find flight tickets from Chicago to ACK if you book early. Airlines often offer some amazing early bird discounts.

  • Finding flight tickets from Chicago to Nantucket Memorial Airport is more likely if you're flexible with your travel dates. Check out the 'Whole month' function to see the lowest fares across every month and land a great deal.

  • Sign into your online account or use the app to create a Price Alert. We'll let you know straight away if there's a better deal on this route. It's simple to do, and it'll save you from searching for a cheap ticket from Chicago to ACK every day.

  • Tailor your flights with filters. Pick your preferred arrival and departure times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Chicago to Nantucket Memorial Airport.

The best time to fly from Chicago to Nantucket Memorial Airport (ACK)

  • August is the most popular month for flights from Chicago to Nantucket Memorial Airport. To steer clear of the crowds, visit Nantucket in February when it's quieter.

  • Book your flight from Chicago to ACK for August if you're eager to experience the city during its warmest month. You can expect temperatures in Nantucket to range from 19ºC to 23ºC.

  • If you'd rather travel in cooler conditions, lock in a cheap flight from Chicago to Nantucket Memorial Airport in February when temperatures average between -5ºC and 7ºC.

More about Nantucket

  • After locking in your flight from Chicago to Nantucket Memorial Airport, think about where you'd like to stay in this city. Make one of these options your base for exploring Nantucket:

  • All great adventures should include a little sightseeing. Brant Point Lighthouse, Whaling Museum and Sankaty Head Lighthouse are must-do's during your Nantucket adventure.

Complete your Nantucket trip with a car rental

  • Once you've locked in your hotel and cheap flight from Chicago to Nantucket Memorial Airport, next up is choosing one of our car rentals in Nantucket. Browse the offers and instantly compare your options on price, fuel policies, and more.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.