Cheap Flights from Dublin to Chicago O'Hare International

Compare Dublin to Chicago O'Hare International flight deals

Find the cheapest month or even day of the year to fly to Chicago O'Hare International

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Flight deals from Dublin to Chicago O'Hare International

Looking for a cheap last-minute deal or the best return flight from Dublin Airport to Chicago O'Hare International Airport? If you want to travel next month, return fares start from R 8,369. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Dublin to Chicago O'Hare International

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

Direct flights from Dublin to Chicago O'Hare International

Dublin to Chicago O'Hare International: Alternative routes

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

Dublin to Chicago: Flight information

The things to know before you go.
Cheapest flight foundR 4,788
Cheapest month to flyAugust
Average flight time8 hrs, 28 mins
Most popular airlineAer Lingus
Average flights per week111

Finding cheap flights from Dublin to Chicago O'Hare International: Frequently asked questions

The best price we found for a return flight from Dublin to Chicago O'Hare International is R 7,482. 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 28 minutes is the average flight time from Dublin to Chicago O'Hare International.
Aer Lingus, American Airlines and Iberia fly direct from Dublin to Chicago O'Hare International.
As of July 2026, there are 111 flights per week flying from Dublin to Chicago O'Hare International.
The cheapest month to fly from Dublin to Chicago O'Hare International is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to Chicago O'Hare International Airport on Friday, 8 January 2027.
Yes – the average flight time is 8 hours and 28 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 O'Hare International 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.

Currently, Icelandair and Brussels Airlines offer the cheapest flight tickets to Chicago O'Hare International.

Flying from Dublin Airport (DUB) to Chicago O'Hare International Airport (ORD): what you need to know

  • The average time for a direct flight from Dublin Airport to Chicago O'Hare International Airport is 8 hours 25 minutes.

  • Chicago's timezone is UTC-6, making Chicago six hours behind Dublin.

  • Choose from 22 weekly Dublin Airport to Chicago O'Hare International Airport flights. The 09:30 departure with Aer Lingus is the earliest you can take. Aer Lingus operates the latest service of the day at 16:40.

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

  • You can expect longer queues in popular months such as July. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a wise move.

  • You can travel nonstop to Chicago, the United States. Book a ticket with one of these airlines that offer direct flights from Dublin Airport to Chicago O'Hare International Airport:

  • The majority of travellers choose to fly with Aer Lingus on this route.

  • The most punctual carrier that offers DUB to ORD flights is American Airlines. Its services land as scheduled 79.2% of the time.

  • Think about adding a stopover when booking your ticket from Dublin Airport to Chicago O'Hare International Airport. Just deselect 'Direct flights only' to break up your trip, or maybe even explore a new city along the way. Here are some options between DUB and ORD:

    • Toronto Pearson International Airport

    • Philadelphia International Airport

    • Montreal Pierre Elliott Trudeau Airport

How to find the cheapest flights from Dublin Airport (DUB) to Chicago O'Hare International Airport (ORD)

  • R 4,788 is the best price for a one-way Dublin Airport to Chicago O'Hare International Airport flight. A return flight starts from R 7,482. These fares may change based on availability and demand.

  • To score cheap tickets from DUB to ORD, book in advance. Airlines generally offer lower fares when flights are first made available.

  • Plan your trip for May. That's the cheapest month for flights from Dublin Airport to Chicago O'Hare International Airport. If you're flexible with your travel dates, try out the 'Whole month' tool to see the cheapest price across each month.

  • Cut down on the time spent looking for cheap flights from DUB to ORD by creating a Price Alert. You'll get an email or push notification on the app when a new low fare is offered.

  • Tailor your trip using filters. Select your departure and arrival times, total journey duration and airlines. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from Dublin Airport to Chicago O'Hare International Airport.

Handy information about Dublin Airport (DUB)

  • When it comes to Dublin Airport's on-time performance, data shows 77% of flights arrive within the scheduled timeframe.

  • To get to Dublin Airport from central Dublin, it'll take around 25 minutes if you're planning to drive. Of course, this depends on traffic. It's approximately 11 kilometres from the airport to the city centre.

  • The journey when using public transport usually takes 30 minutes.

  • Get your trip off to a leisurely start by staying near DUB. Whether you've booked an early flight from Dublin Airport to Chicago O'Hare International Airport or just don't want to be rushed, these stays have you covered:

Arriving at Chicago O'Hare International Airport (ORD)

Getting from Chicago O'Hare International Airport (ORD) to central Chicago

  • The address for ORD is 10000 West O'Hare.

  • Chicago O'Hare International Airport is approximately 27 kilometres from the centre of Chicago. Driving there takes about 30 minutes.

  • It takes roughly 45 minutes if you're travelling on public transport.

When to fly to Chicago O'Hare International Airport (ORD)

  • The quietest month for a flight from Dublin Airport to Chicago O'Hare International Airport is March, while July is the most popular. Choose the ideal time to visit Chicago based on whether you prefer a more fast-paced or easygoing experience.

  • Lock in your flight from Dublin Airport to Chicago O'Hare International Airport for July if you'd like to explore Chicago during its warmest month. Expect temperatures of between 16ºC (61ºF) and 28ºC (82ºF).

  • Look for cheap tickets from DUB to ORD in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between -12ºC (10ºF) and 3ºC (37ºF) on average.

Explore more of the United States

  • Chicago is always a good idea, but there are so many other parts of the United States just waiting to be discovered. About 451 kilometres south-east of Chicago, a trip to Columbus will keep you on the go. Don't miss top attractions like Franklin Park Conservatory and Botanical Gardens, Whetstone Park / Park of Roses and Ohio Theatre.

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

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