€226 Find Cheap Flights from Chicago O'Hare Airport to Dublin – Compare and Save

These are the earliest and latest flight times available from Chicago O'Hare Intl Airport to Dublin:

• Earliest: departs at 15:55 and lands at 23:25
• Latest: departs at 21:05 and lands at 04:35.

The flight takes about 7h 30m.

Two cabin classes are available on flights from Chicago O'Hare Intl Airport to Dublin:

• Economy class
• Business Class

A direct flight from Chicago O'Hare Intl Airport to Dublin takes 7h 30m, covering 9,482 km.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Return flights from Chicago O'Hare Intl Airport to Dublin range from €498 to €823, with an average of €648 over the past 12 months. Anything below €498 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 35% above the €648 route average. Book 14 weeks before departure for the lowest fares.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average €387 return via Toronto Pearson Intl (YYZ), compared with €687 for direct.

American Airlines is slightly above the route average for timely arrivals, while Aer Lingus has a lower on-time arrival rate. On-time arrival rates on Chicago O'Hare Intl Airport to Dublin flights are:

• American Airlines: 86% on time
• Aer Lingus: 78% on time
• United Airlines: 72% on time

On average, flights on this route are punctual 77% of the time.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge €49–€90 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Airbus A330-300 family is used most often on this route, operated mainly by Aer Lingus and Iberia. Other aircraft seen on the route include Boeing 767-300 variants.

Evening is the busiest departure period on Chicago O'Hare Intl Airport to Dublin flights, with 66% leaving in that window. Afternoon departures account for 33%, Morning flights for 1%, and Night flights for 0%.

Three airlines offer in-flight Wi-Fi on Chicago O'Hare Intl Airport to Dublin flights:

• Aer Lingus
• American Airlines
• Finnair

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

One-way fares from Chicago O'Hare Intl Airport to Dublin are currently lower than usual. Average one-way flight prices are about €240, which is 46% below the typical average for this route.

Dublin Airport (DUB) hosts 5 major car hire companies, with daily rates starting from around €3 for economy cars. Top options include:

• Budget
• Sixt
• Easirent
• Europcar
• Thrifty

Flights from Chicago O'Hare Intl Airport to Dublin usually depart from Chicago O'Hare Intl (ORD) and arrive at Dublin (DUB).

Afternoon flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Chicago O'Hare Intl Airport to Dublin route, 23% of flights were delayed in the past three months, with delays averaging 2h 39m.

One-stop flights from Chicago O'Hare Intl Airport to Dublin most commonly connect through:

• Toronto Pearson Intl (YYZ) – 54% of one-stop connections
• Reykjavik Keflavik Intl (KEF) – 33% of one-stop connections
• Kastrup Copenhagen (CPH) – 3% of one-stop connections
• London Heathrow (LHR) – 3% of one-stop connections

Yes. Flexible dates can save you up to 14% on flights from Chicago O'Hare Intl Airport to Dublin. Wednesday is the cheapest departure day at €612 return on average, while Friday is the most expensive at €704, a difference of €93.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between Chicago O'Hare Intl Airport and Dublin. The airlines offering direct flights on this route include:

• Aer Lingus
• United Airlines

Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time of 10h 42m, compared to 10h 50m via Hartford Bradley Intl (BDL) and 11h 13m via Reykjavik Keflavik Intl (KEF).

Dublin is 5 hours ahead of Chicago O'Hare Intl Airport (Irish Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Dublin are Bord Gáis Energy Theatre, 3Olympia Theatre, and St. Stephen's Green. These are among the most viewed places in Dublin on KAYAK.

Among airlines operating Chicago O'Hare Intl Airport to Dublin flights:

• Aer Lingus: offers extra legroom; offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection
• American Airlines: offers free seat selection
• Iberia: offers free seat selection
• SWISS: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Aer Lingus: a cabin bag and a checked bag in Economy class
• United Airlines: a cabin bag and a checked bag in Economy class
• American Airlines: a cabin bag and a checked bag in Economy class

Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.