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Cheap Flight Deals from Chicago to Dublin

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Round TripOne Way
CHI Chicago
DUB Dublín
From $396.99
Jan 12, 2026 - Feb 10, 2026
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*All fares above were last found on:
Fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions.

When’s a good time to book a flight from Chicago to Dublin?

What’s the cheapest day of the week to fly from Chicago to Dublin?

What is the cheapest month to fly from Chicago to Dublin?

‡This information is based on historical data from the last 365 days.

Finding Affordable Flights from Chicago to Dublin
  • Plan Ahead - One of the keys to securing cheap flights from Chicago to Dublin is to plan your trip well in advance. Airlines often offer lower prices for those who book tickets months ahead. Keep an eye on special promotions and sales events, which can yield significant savings.
  • Flexibility is Key - Being flexible with your travel dates can also lead to substantial cost savings. Consider flying during off-peak seasons or on weekdays when prices tend to be lower.
  • Set Price Alerts - To keep tabs on flight prices, consider setting up fare alerts. These alerts will notify you when fares from Chicago to Dublin drop, giving you the opportunity to grab cheap deals.
  • Consider Nearby Airports - If Dublin has multiple airports, check the prices at each one. Sometimes, flying into a nearby airport and then taking a short train or bus ride to your destination can be a much cheaper option.
  • Bundle and Save - Booking your flight and accommodation together as a package can often result in significant savings. CheapOair offers these bundled deals, so make sure to explore this option.

When is the Cheapest Time to Book Flights from Chicago to Dublin?

Got flexible travel dates? Use our flight data from the past year to discover ideal times to fly from Chicago to Dublin. Find out which months and days typically offer lower fares and score our best savings.

CheapOair provides the predicted prices for one-way trips or round-trips with a duration of 7 days for domestic and 14 days for international trips based on historical data and available flight information. Graphs are estimates only. Prices are subject to change and can't be guaranteed until ticketed.
Estimated price for
Round-trip

‡Graphs are estimates only. Based on historical data and available flight information. Prices are subject to change and cannot be guaranteed until ticketed.

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Chicago to Dublin Flight Route Information

Travel Distance:3,667 Miles
Airlines Flying This Route: Aer Lingus, British Airways, Lufthansa
Weekly Flights:29
Avg. Flight Duration:11.25 Hours

Insights About Flying from Chicago to Dublin

Q. Which is the high season to travel from Chicago to Dublin?

A. The month of September is considered the high season for flying from CHI to DUB. Traveling during the high season can affect ticket prices and availability, making this data crucial for trip planning.

Q. How many direct flights are available from CHI to DUB?

A. There are a total of 117 direct flights from Chicago to Dublin. For travelers seeking convenience and shorter travel times, this data is important when choosing flight options.

Q. Which is the low season to travel from Chicago to Dublin?

A. April is considered the low season for traveling from Chicago to Dublin, Ireland. Travelers looking for cost-effective options and fewer crowds may consider traveling during this period.

Q. How many daily flights are there between Chicago to Dublin?

A. There are as many as 3 daily flights available for travelers between CHI to DUB. This data offers flexibility in choosing departure times that best suit your schedule.

Q. At what time does the last flight depart to Dublin?

A. The last flight to Dublin typically departs between 10:00PM - 11:00PM. Travelers who prefer late-night departures will find this information valuable for planning their journey.

Q. What percentage of travelers spent an average of 2 days in Dublin, Ireland?

A. Approximately 39.01% of travelers spent an average of 2 days exploring Dublin. This information can assist in planning the duration of your stay in Dublin

Q. What percentage of CHI to DUB flyers traveled with kids under 14?

A. About 3% of passengers on flights from Chicago to Dublin were accompanied by children under the age of 14. This information is useful if you're planning a family trip and want to know how common it is to travel with young children on this route.

Q. What percentage of Chicago to Dublin travelers were over 60 years old?

A. A notable 18% of travelers were aged 60 or older. This statistic provides insights for senior travelers or those seeking a mature travel demographic.

Q. What percentage of CHI to DUB travelers were millennials?

A. Millennials make up a significant portion of travelers on this route, accounting for 39% of all passengers. If you're a millennial looking to connect with like-minded travelers, this statistic might interest you.

Q. What percentage of Chicago to Dublin travelers were female?

A. Almost half of the passengers, approximately 53% were female. Knowing the gender distribution can be useful for solo female travelers or those interested in gender-related travel insights.

Q. What percent of Chicago to Dublin travellers booked first or business class?

A. 10% of travelers booked first or business class on this route.

Q. On which days one can have the most flight options in Dublin?

A. Friday offer the most flight options in Dublin.

§ All flight facts are based on last 3 months' data except the highest and lowest booking months that are based on last 3 months' data.

Cheap Flights from Chicago to Dublin

Looking for flights from Chicago to Dublin? Look no more, for you're at the right place. Book cheap flights from Chicago to Dublin on CheapOair and enjoy great deals. Whether its leisure or a business trip, we offer the most competitive rates on flight tickets to destinations around the world. Grab CHI to DUB flight deals on CheapOair and save.

Airports in Chicago

Chicago is served by 2 airports - Chicago O'Hare International Airport and Midway International Airport. The Chicago O'Hare International Airport or O'Hare International Airport is the primary airport serving the Chicago City. It is a public airport situated in Chicago, Illinois, U.S.A. The airport offers both cargo & passenger services to both domestic and international destinations including London, Toronto, Frankfurt, Dublin, Montreal, Paris, Munich, Amsterdam, Doha, Seoul, Dubai, New York, Boston, Denver, Atlanta, San Francisco, Washington, and more.

Both the airports are well connected with the city through various modes of transportation. These include shuttles/buses, taxis, limo, rideshare, rental cars, public transit, and more.

Explore Dublin

Dublin is the capital and largest city in Ireland. This city also has international influence which can be seen in its mixed bag of tourist attractions. The well-to-do past of this city has given it a plethora of historical sites as its key tourist attractions. Fresh pinches of Guinness, fine literatures, urban traditional stories, traditional music, and watch-worthy dances are some of reasons of the city's fame.

Things to do in Dublin

  • National Gallery of Ireland - National Gallery of Ireland is spread over four levels and features an interesting collection of Irish arts.
  • Trinity College - Trinity College, located in the middle of Dublin, is the oldest university in Ireland with significant history. Bourgeoning and gorgeous gardens upsurge the tourism value of this college several times.
  • Dublin Zoo - Dublin Zoo is among the most celebrated tourist attractions in the city. It is the largest zoo in the country and is divided into areas named as City Farm, Endangered Species, World of Cats, the Kaziranga Forest trail, World of Primates, Fringes of the Arctic, Reptiles, Birds, Plants, and African Plains.

Best Time to Visit Dublin

Weather-wise, the best time to visit Dublin is between May and August. During these months, the climate of the city is pleasant for sightseeing.

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