$368 Find Cheap Flights from Ireland to Chicago O'Hare Airport - Compare and Save

In the last 5 days, the cheapest flight deal to Chicago O'Hare Airport was found on the route from Shannon, at $608 return. The most popular connection is from Dublin to Chicago O'Hare Airport and KAYAK users have found round-trip deals for as low as $615 in the last 5 days.

Based on KAYAK data, the cheapest day to fly to Chicago is Sunday where round-trip tickets can be as cheap as $713. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $1,005 on average.

The cheapest month for flights to Chicago O'Hare Intl Airport is November, where tickets cost $476 on average for return flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from Ireland is $852 and $847 respectively. For one-way flights, the best month to travel is February with an average price of $499.

The cheapest time of day to fly to Chicago O'Hare Intl Airport is generally in the evening, when round-trip flights cost $787 on average. The most expensive time of day to fly to Chicago O'Hare Intl Airport is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $890.

If you’re looking for cheap airfare to Chicago O'Hare Intl Airport, 25% of our users found tickets to Chicago O'Hare Intl Airport for the following prices or less: From Dublin $778 round-trip.

To get a below average price, you should book around 3 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

The most popular airline among KAYAK users flying to Chicago O'Hare Intl Airport is Aer Lingus, followed by United Airlines.

Of the 3 airlines that fly to Chicago O'Hare Intl Airport, Aer Lingus offers the most flights, with around 14 per week, followed by United Airlines with 14 flights per week.

The duration of your flight to Chicago depends on your departure and arrival airports. Obviously, any flights that include a layover will also be longer. The most popular routes to Chicago on KAYAK are from Dublin, which takes 8h 00m, Shannon, which takes 8h 20m, Cork, which takes 12h 05m, and Milltown (Kerry), which takes 14h 50m.

There are around 4,054 direct flights from within Ireland to Chicago O'Hare Intl Airport every day. Most flights depart in the morning, with 49% of flights departing in the morning.

Each week there are around 28,376 direct flights from within Ireland to Chicago O'Hare Intl Airport. The most common day for departures is Sunday, with 15% of flights taking off on this day.

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Chicago O'Hare Intl Airport. Instead, there are 156 long-haul flights (6-12 hour flight duration), with the most arriving from Dublin.