July is the cheapest month to fly this route, with average fares around $803 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $910 | $841 | ||
| June 2026 | $929 | $773 | Peak | |
| July 2026 | $803 | $708 | Best | |
| August 2026 | $829 | $819 |
Departing on Wednesday offers the lowest average fares at $838. Thursday departures are the most expensive at $901, a difference of $63.
The best time to fly is July. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Chicago to Dublin is July, with average round-trip fares around $803. The lowest fare found in July is $708.
Wednesday departures are the cheapest, averaging $838 round trip. The most expensive day is Thursday at $901.
Based on current pricing trends, booking for July travel offers the best value. Avoid June if possible, as fares average $929 compared to $803 in the cheapest month. May is a solid middle-ground option at $910.
Flying in July instead of June can save you approximately $126 per round trip. The cheapest month averages $803 while the most expensive averages $929.
Airlines, flight times, price calendar, and more for Chicago to Dublin
View ORD → DUB Details