Cheap flights from Chicago-O'Hare to Dublin
Cheap return flights from Chicago-O'Hare to Dublin
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Dublin flight facts
What you need to know
What are the cheapest airlines?
- Aer Lingus
- United Airlines
- American Airlines
These airlines usually offer the cheapest flights from Chicago-O'Hare to Dublin.
What airlines fly indirectly?
- British Airways
- Lufthansa
- Air Canada
These airlines fly from Chicago-O'Hare to Dublin, but you’ll have at least one layover.
How long is the flight?
8 hours 30 minutes
This is the shortest flight time from Chicago-O'Hare to Dublin.
Alternative flights from the UK to Dublin
Check out prices for other routes
Alternative flights from Chicago-O'Hare
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Chicago-O'Hare/Dublin route. There are around 35 flights on any given week from the UK to Dublin and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Chicago-O'Hare to Dublin
Tips and advice from our flight experts
You've searched for flights from Chicago-O'Hare to Dublin. We've found 25 flights and compared them to give you the best offer. Aer Lingus is, on average, the cheapest airline for this route. Look out for them! The cheapest offer we've found is a one-way ticket for the route from Chicago-O'Hare to Dublin on 26/06/2026 at 09:10 for £43.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 6,400 km flight from Chicago-O'Hare to Dublin.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Aer Lingus is a popular choice for this route, with an average flight duration of 8 hours 30 minutes. After selecting an offer, fill out your information and proceed to payment. Consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near Dublin
Where other people are flying to
