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Cheap Flights from Chicago O'Hare International to Dublin

Compare Chicago O'Hare International to Dublin flight deals

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

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Flight deals from Chicago O'Hare International to Dublin

Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International Airport to Dublin Airport? If you want to travel next month, return fares start from R 7,318. Find the lowest prices on one-way and return tickets right here.
Dublin.R 2,971 per passenger.Departing Mon, 13 Jul.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Chicago O'Hare International on Mon, 13 Jul, arriving in Dublin.Price includes taxes and charges.From R 2,971, select.
Dublin.R 3,093 per passenger.Departing Tue, 1 Sep.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Chicago O'Hare International on Tue, 1 Sep, arriving in Dublin.Price includes taxes and charges.From R 3,093, select.
Dublin.R 3,096 per passenger.Departing Sat, 29 Aug.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Chicago O'Hare International on Sat, 29 Aug, arriving in Dublin.Price includes taxes and charges.From R 3,096, select.
Dublin.R 4,507 per passenger.Departing Thu, 15 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Chicago O'Hare International on Thu, 15 Oct, arriving in Dublin.Price includes taxes and charges.From R 4,507, select.
Dublin.R 4,872 per passenger.Departing Thu, 28 Jan.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Chicago O'Hare International on Thu, 28 Jan, arriving in Dublin.Price includes taxes and charges.From R 4,872, select.
Dublin.R 5,087 per passenger.Departing Fri, 6 Nov.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Chicago O'Hare International on Fri, 6 Nov, arriving in Dublin.Price includes taxes and charges.From R 5,087, select.
Dublin.R 5,166 per passenger.Departing Sun, 13 Dec.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Chicago O'Hare International on Sun, 13 Dec, arriving in Dublin.Price includes taxes and charges.From R 5,166, select.
Dublin.R 5,177 per passenger.Departing Tue, 2 Feb.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from Chicago O'Hare International on Tue, 2 Feb, arriving in Dublin.Price includes taxes and charges.From R 5,177, select.
Dublin.R 5,199 per passenger.Departing Mon, 1 Mar.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Chicago O'Hare International on Mon, 1 Mar, arriving in Dublin.Price includes taxes and charges.From R 5,199, select.
Dublin.R 5,220 per passenger.Departing Tue, 11 May.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Chicago O'Hare International on Tue, 11 May, arriving in Dublin.Price includes taxes and charges.From R 5,220, select.
Dublin.R 5,284 per passenger.Departing Mon, 26 Oct.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Chicago O'Hare International on Mon, 26 Oct, arriving in Dublin.Price includes taxes and charges.From R 5,284, select.
Dublin.R 5,303 per passenger.Departing Mon, 15 Mar.One-way flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Mon, 15 Mar, arriving in Dublin.Price includes taxes and charges.From R 5,303, select.
Dublin.R 5,308 per passenger.Departing Mon, 3 May.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Chicago O'Hare International on Mon, 3 May, arriving in Dublin.Price includes taxes and charges.From R 5,308, select.
Dublin.R 5,310 per passenger.Departing Tue, 2 Feb.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Chicago O'Hare International on Tue, 2 Feb, arriving in Dublin.Price includes taxes and charges.From R 5,310, select.
Dublin.R 5,316 per passenger.Departing Wed, 11 Nov.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Chicago O'Hare International on Wed, 11 Nov, arriving in Dublin.Price includes taxes and charges.From R 5,316, select.
Dublin.R 5,316 per passenger.Departing Sun, 27 Sep.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Chicago O'Hare International on Sun, 27 Sep, arriving in Dublin.Price includes taxes and charges.From R 5,316, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to Dublin flights are currently cheapest in July.
Jun
from R 9,354
Jul
from R 2,971
Aug
from R 3,096
Sep
from R 3,093
Oct
from R 4,507
Nov
from R 5,087
Dec
from R 5,166
Jan
from R 4,872
Feb
from R 5,177
Mar
from R 5,199
Apr
from R 5,322
May
from R 5,220

Direct flights from Chicago O'Hare International to Dublin

Chicago O'Hare International to Dublin: Alternative routes

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

Dublin

10km from central Dublin
ClosestCheapest
from R 2,977
Search flights

Chicago to Dublin: Flight information

The things to know before you go.
Cheapest flight foundR 2,971
Cheapest month to flyJuly
Average flight time7 hrs, 30 mins
Most popular airlineAer Lingus
Average flights per week117

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

The best price we found for a return flight from Chicago O'Hare International to Dublin is R 7,118. 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.
7 hours and 30 minutes is the average flight time from Chicago O'Hare International to Dublin.
Aer Lingus, American Airlines and Iberia fly direct from Chicago O'Hare International to Dublin.
As of June 2026, there are 117 flights per week flying from Chicago O'Hare International to Dublin.
The cheapest month to fly from Chicago O'Hare International to Dublin is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to Dublin Airport on Friday, 14 August 2026.
Yes – the average flight time is 7 hours and 30 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 Dublin 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 Dublin is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Lufthansa and Finnair offer the cheapest flight tickets to Dublin.

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

  • Around 7 hours 30 minutes is how long you can expect to be in the air on a direct flight from Chicago O'Hare International Airport to Dublin Airport.

  • The timezone in Dublin is UTC+0, which is six hours ahead of Chicago.

  • Flights from ORD to DUB start at 15:45 — the earliest with Aer Lingus. The latest departure is at 22:25 with American Airlines. Overall, you can take your pick of 22 weekly Chicago O'Hare International Airport to Dublin Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Get to the airport on time to board your ORD to DUB flight.

  • During popular months like July, it's a good idea to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead of an international flight when you travel during a peak period in general.

  • A variety of airlines offer direct flights from Chicago O'Hare International Airport to Dublin Airport, so getting to Dublin (and then seeing more parts of Ireland!) is easy. Top carriers that fly nonstop include:

  • Most travellers choose to travel with Aer Lingus on this route.

  • With 71.2% of its services landing on schedule, Aer Lingus is the most punctual carrier operating ORD to DUB flights.

  • Think about adding a stopover when booking your ticket from Chicago O'Hare International Airport to Dublin Airport. Simply deselect 'Direct flights only' to break up your journey, or even explore someplace new along the way. Here's where you can stop between ORD and DUB:

    • Boston Logan International Airport

    • Toronto Pearson International Airport

    • Hartford Bradley International Airport

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

  • R 2,971 is currently the best price for a one-way Chicago O'Hare International Airport to Dublin Airport flight. A return flight starts at R 7,118. These prices can change depending on demand and availability.

  • Score cheap tickets from ORD to DUB by booking four months ahead. According to our research, that's the sweet spot for finding the biggest deals.

  • September is the cheapest month for flights from Chicago O'Hare International Airport to Dublin Airport. If you prefer to travel at a different time of year, the 'Whole month' tool will give you the lowest airfares for each month.

  • Snapping up cheap flights from ORD to DUB is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Select your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Chicago O'Hare International Airport to Dublin Airport.

Handy information about Chicago O'Hare International Airport (ORD)

  • ORD is located at 10000 West O'Hare.

  • When it comes to the on-time performance of Chicago O'Hare International Airport, data shows 70% of flights arrive within the expected timeframe.

  • Chicago O'Hare International Airport is about 27 kilometres from central Chicago. If you're ride-sharing, catching a taxi or driving from the centre, it'll take you 30 minutes or so to get there, depending on the traffic.

  • Planning to take public transport? Expect a trip time of around 45 minutes.

  • Get your journey off to a stress-free start by staying near ORD. Whether you're catching an early flight from Chicago O'Hare International Airport to Dublin Airport or want to avoid feeling rushed, these stays are ideal:

Arriving at Dublin Airport (DUB)

Getting from Dublin Airport (DUB) to central Dublin

  • Dublin Airport is approximately 11 kilometres from the centre of Dublin. Driving there takes about 25 minutes.

  • It takes around 30 minutes to get there by public transport.

When to fly to Dublin Airport (DUB)

  • The quietest month for a flight from Chicago O'Hare International Airport to Dublin Airport is March, while July is the busiest. Pick the best time to go to Dublin based on whether you prefer a faster pace or a more relaxed vibe.

  • The warmest month in Dublin is July, with temperatures ranging between 10ºC (50ºF) and 19ºC (66ºF). Lock in your flights from Chicago O'Hare International Airport to Dublin Airport in this month if you enjoy this type of weather.

  • January sees average temperatures of between 2ºC (36ºF) and 9ºC (48ºF). Look for cheap tickets from ORD to DUB sometime then if you want to travel when it's cooler.

Explore more of Ireland

  • Dublin is always a good idea, but there are so many other corners of Ireland you should also see. Around 225 kilometres south-west of Dublin, a trip to Cork will keep your itinerary busy. Check out popular attractions like Blarney Castle & Gardens, Blarney Castle House(Teach Caisleán na Blarnan) and Blarney Stone.

Plan the rest of your trip from Chicago to Dublin

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