Cheap Flights from Dublin to Chicago

Compare Dublin to Chicago flight deals

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

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Flight deals from Dublin Airport to Chicago

Looking for a cheap last-minute deal or the best return flight from Dublin Airport to Chicago? If you want to travel next month, return fares start from ج.م.‏ 29,256. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Dublin to Chicago

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

Direct flights from Dublin to Chicago

Dublin to Chicago: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 16,224
Cheapest month to flyMay
Average flight time8 hrs, 35 mins
Most popular airlineAer Lingus
Average flights per week163

Finding cheap flights from Dublin to Chicago: Frequently asked questions

There are 4 airports in Chicago: Chicago Midway, Chicago O'Hare International, Chicago Dupage County, and Chicago Rockford.
The best price we found for a return flight from Dublin to Chicago is ج.م.‏ 26,884. 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.
8 hours and 35 minutes is the average flight time from Dublin to Chicago.
Aer Lingus, Iberia and British Airways fly direct from Dublin to Chicago.
As of March 2026, there are 163 flights per week flying from Dublin to Chicago.
The cheapest month to fly from Dublin to Chicago is usually October.
If you're flying from Dublin Airport, the cheapest airport near Chicago is Chicago O'Hare International – which is 25.4 km away from the centre of Chicago. We've found flights into this airport from ج.م.‏ 26,884.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to Chicago on Monday, 5 October 2026.
Yes – the average flight time is 8 hours and 35 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 Chicago 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 Chicago is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 3°C. July is typically the warmest month in Chicago, when it usually averages around 26°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is August.
Currently, Scandinavian Airlines and Aer Lingus offer the cheapest flight tickets to Chicago.

Flying from Dublin Airport (DUB) to Chicago: what you need to know

  • Take a direct flight from Dublin Airport to Chicago and you'll be travelling for around 7 hours 25 minutes.

  • Dublin Airport is located in Dublin. Based in the UTC-5 timezone, Chicago is five hours behind Dublin.

  • The busiest route is from Dublin Airport (DUB) to O'Hare International Airport (ORD). Take your pick of 19 services every week between these two airports. If you want to get going as soon as possible, the earliest flight from DUB to ORD is the 09:30 Aer Lingus option. If you'd rather fly out later on, the last departure is at 16:40 with Aer Lingus.

  • Give yourself plenty of time to make your DUB to Chicago flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Heading off during a peak period like public or school holidays? Expect longer queues at check-in and security. Play it safe and arrive up to four hours before international flights and two hours ahead of domestic departures.

  • Begin your trip at DUB and fly straight to O'Hare International Airport (ORD). That's where you can expect to touch down when searching for Dublin Airport to Chicago tickets.

  • There's a good selection of carriers that offer direct flights from Dublin Airport to Chicago, such as:

  • A stopover is the perfect opportunity to take a break from travelling and perhaps even tick off a new city. When searching for flight tickets from DUB to Chicago, deselect the 'Direct flights only' box to see where you can visit along the way. Here are some options to consider:

    • Logan International Airport (BOS)

    • Pearson International Airport (YYZ)

    • Minneapolis-St. Paul International Airport (MSP)

  • DUB is about 8 kilometres from central Dublin. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 30 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the journey time to be around 2 hours 10 minutes.

  • Have an early flight from Dublin Airport to Chicago? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by choosing one of these stays near DUB:

  • Of all flights departing from Dublin Airport, 72.87% land on schedule at their destination.

How to find the cheapest flights from Dublin Airport (DUB) to Chicago

  • ج.م.‏ 16,224 is currently the best price for a one-way Dublin Airport to Chicago flight. Return flight tickets start from ج.م.‏ 26,884. These fares can change depending on demand.

  • To pick up cheap flights from DUB to Chicago, book your trip one month before your departure date.

  • The best month for finding cheap Dublin Airport to Chicago tickets is May. Use the 'Whole month' tool to compare prices, then choose the dates that offer the lowest fares.

  • Locking in a cheap flight from DUB to Chicago couldn't be easier with Price Alerts. Simply create one of these automatic notifications and we'll get in touch when a deal gets even better.

  • Tailor your trip with filters. Choose your ideal arrival and departure times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Dublin Airport to Chicago.

Airports in Chicago

O'Hare International Airport (ORD)

  • The distance from O'Hare International Airport (ORD) to central Chicago is roughly 40 kilometres. It'll take you about 35 minutes to reach the centre driving.

  • Getting to the centre on public transport takes around 55 minutes.

  • The last thing you want is a lengthy journey to your hotel if you're getting in late on a flight from Dublin Airport to Chicago. Book one of these accommodation options near ORD instead:

  • Pick up an O'Hare International Airport rental car and discover Chicago and beyond with your own wheels. Routes Car Rentals, Dollar and Budget are leading providers to choose from here.

  • For the best deal, reserve your ride from O'Hare International Airport around four weeks ahead of your flight from DUB to Chicago.

  • ORD is located at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Once your flight from Dublin Airport to Chicago has arrived, you can get to the city centre in around 20 minutes by car. Central Chicago is roughly 19 kilometres from Chicago Midway International Airport (MDW).

  • If you travel by public transport, the ride to the centre will take you 45 minutes or so.

  • Hang up the 'Do not disturb' sign and relax at a hotel near MDW. Here are a few options where you can take a load off after your DUB to Chicago flight:

  • Dollar, Hertz and Budget make collecting a Chicago Midway International Airport rental car easy and quick. These reliable suppliers are located in or around the terminal and will have you on your way in a heartbeat.

  • Secure your first choice, not your last resort. Reserving your ride from MDW four weeks in advance often means more savings and a greater range of vehicles.

  • Chicago Midway International Airport can be found at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • Make your way to the city centre after your flight from Dublin Airport to Chicago has touched down. Central Chicago is around 137 kilometres from Chicago Rockford International Airport (RFD) and takes roughly 1 hour 25 minutes to reach by car.

  • Public transport will get you there in roughly 4 hours 15 minutes.

  • Enjoy a low-stress, comfortable start to your break by choosing a hotel near RFD after your DUB to Chicago flight. Unwind after a day of travel or simply give yourself time to find your footing in a new city at:

  • Whether you'd like a budget-friendly compact for a solo adventure or an SUV to fit the whole crew comfortably, you'll find the ideal Chicago Rockford International Airport rental car for your needs. Browse the range of wheels available from providers such as Budget, Alamo and National.

  • If you're hoping for a specific type of vehicle, booking early increases your chances of finding what you want. Secure your ride from RFD a couple of weeks ahead of your flight from Dublin Airport to Chicago.

  • Chicago Rockford International Airport is located at 2 Airport Cir.

Best time to go to Chicago

  • Visit Chicago in high season if you like a busy atmosphere, but remember that prices may be higher. Alternatively, book your flights from Dublin Airport to Chicago during the off-season when prices are cheaper and crowds are smaller.

  • Before locking in your Dublin Airport to Chicago flight ticket, think about what kind of weather works for you. July is the warmest month in Chicago, with temperatures ranging from 15ºC to 29ºC.

  • January sees average temperatures of between -12ºC and 3ºC. Search for a cheap ticket from DUB to Chicago around that time if you want to travel when it's cooler.

More about Chicago

Explore more of United States

  • Chicago is always a good idea, but there are so many other corners of United States just waiting to be discovered. Around 451 kilometres south-east of Chicago, a visit to Columbus will keep you on the move. Start with attractions like Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • Around 257 kilometres south-east of Chicago, Indianapolis is another essential stop in United States. No visit is complete without checking out The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.