€183 Find Cheap Flights from Illinois to Ireland

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Ireland.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Illinois to Ireland with an airline and back with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Illinois to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Based on KAYAK data, the cheapest day to fly to Ireland is Saturday when return tickets can be as cheap as €630. On the other hand, the most expensive day to fly is Tuesday, when return prices are €754 on average.

The cheapest time of day to fly to Ireland is generally in the evening, when round-trip flights cost €756 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €910.

The cheapest ticket to Ireland from Illinois found in the last 72 hours was to Dublin, at €610 return. The most popular route is Chicago O'Hare Intl Airport (ORD) to Dublin (DUB) and the cheapest return airline ticket found on this route in the last 72 hours was €610.

The cheapest month for flights from Illinois to Ireland is November, when tickets cost €460 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is €845 and €769 respectively.

To get a below-average price on the flight from Illinois to Ireland, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

An average direct flight from Illinois to Ireland takes 14h 48m, covering a distance of 9592 km. The shortest route is Chicago O'Hare Intl Airport (ORD) to Dublin (DUB) with an average flight time of 7h 15m.

Based on KAYAK flight searches, the most popular destination is Dublin (93% of total searches to Ireland). The next most popular destinations are Shannon (5%) and Cork (1%). Searches for flights to Knock (0%), to Milltown (Kerry) (0%), and to Donegal (0%) are also popular.