Cheap Flights from Dublin 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 to Chicago O'Hare International? 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 May.

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 5,457
Cheapest month to flyMay
Average flight time8 hrs, 18 mins
Most popular airlineAmerican Airlines
Average flights per week82

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 7,701. 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 18 minutes is the average flight time from Dublin to Chicago O'Hare International.
American Airlines, Aer Lingus and British Airways fly direct from Dublin to Chicago O'Hare International.
As of April 2025, there are 82 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 April 2025.
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 Thursday, 30 October 2025.
Yes – the average flight time is 8 hours and 18 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, Scandinavian Airlines and Aer Lingus offer the cheapest flight tickets to Chicago O'Hare International.

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

  • Around 8 hours 20 minutes is how long you'll be travelling on a direct flight from Dublin Airport to O'Hare International Airport.

  • The timezone in Chicago is UTC-5, which is five hours behind Dublin.

  • Flights from DUB to ORD start at 09:30 — the first with American Airlines. The last service of the day is at 16:40 with Aer Lingus. In total, you can take your pick of 31 weekly Dublin Airport to O'Hare International Airport flights.

  • Your DUB to ORD flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Be prepared for longer queues during popular months such as August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a good idea.

  • You'll find a variety of airlines operating direct flights from Dublin Airport to O'Hare International Airport. When you're ready to kick off your Chicago adventure, let one of these carriers take you to this popular corner of United States:

  • The airline most travellers fly with on this route is American Airlines.

  • The most punctual carrier that operates DUB to ORD flights is American Airlines. Its services arrive as scheduled 65.38% of the time.

  • Think about adding a stopover when booking your ticket from Dublin Airport to O'Hare International Airport. Simply deselect 'Direct flights only' to break up your journey, or enjoy a detour to a new and interesting place. Here's where you can stop between DUB and ORD:

    • Pearson International Airport

    • Montreal-Pierre Elliott Trudeau International Airport

    • Philadelphia International Airport

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

  • R 5,457 is currently the lowest price for a one-way Dublin Airport to O'Hare International Airport flight. A return flight starts at R 7,701. These prices may change depending on demand and availability.

  • Book six months before travelling. After looking at the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from DUB to ORD.

  • The cheapest month for flights from Dublin Airport to O'Hare International Airport is May. Use the 'Whole month' tool to see the lowest airfares if you have flexible travel dates.

  • Save time searching for cheap flights from DUB to ORD by creating a Price Alert. You'll receive an email or push notification on the app when a special offer becomes available.

  • Choose your ideal arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Dublin Airport to O'Hare International Airport.

Handy information about Dublin Airport (DUB)

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

  • Central Dublin to Dublin Airport is around 21 kilometres. Depending on traffic, it'll take about 30 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Planning to catch public transport? Expect a journey time of around 2 hours 10 minutes.

  • Have an early flight from Dublin Airport to O'Hare International Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by picking one of these hotels close to DUB:

Arriving at O'Hare International Airport (ORD)

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

  • You'll find ORD at 10000 West O'Hare.

  • O'Hare International Airport to the centre of Chicago has a drive time of around 35 minutes. It's approximately 40 kilometres away.

  • When travelling on public transport, expect a journey time of about 55 minutes.

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

  • August is the most popular month for flights from Dublin Airport to O'Hare International Airport. To avoid the crowds, visit Chicago in January.

  • The warmest month in Chicago is July, with temperatures ranging between 15ºC (59ºF) and 29ºC (84ºF). Lock in your flights from Dublin Airport to O'Hare International Airport in this month if you enjoy this type of weather.

  • If you want to travel in cooler conditions, search for a cheap ticket from DUB to ORD in January. Temperatures average between -12ºC (10ºF) and 3ºC (37ºF) then.

Explore more of United States

  • Columbus is just one of the many cities in United States waiting to be discovered after you've experienced Chicago. Around 451 kilometres away to the south-east, its best attractions include 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. Get a taste of what this destination has to offer at 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.