€234 Find Cheap Flights from Chicago O'Hare Airport to Dublin – Compare and Save

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 extra legroom; offers free seat selection
• Iberia: offers free seat selection

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

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

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

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

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

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

• Economy class
• Business Class

On this route, stopover flights are cheaper than direct options on average. Stopover fares average €368 return via Toronto Pearson Intl (YYZ), compared with €646 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge €47–€86 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 787-8 Dreamliner family is used most often on this route, operated mainly by United Airlines and Lufthansa. Other aircraft seen on the route include Airbus A330-300 variants.

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

• Toronto Pearson Intl (YYZ) – 49% of one-stop connections
• Reykjavik Keflavik Intl (KEF) – 35% of one-stop connections
• Kastrup Copenhagen (CPH) – 4% of one-stop connections
• London Heathrow (LHR) – 3% of one-stop connections

Toronto Pearson Intl (YYZ) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 13% on the Chicago O'Hare Intl Airport to Dublin route. Wednesday is the cheapest departure day at €576 return on average, while Friday is the most expensive at €660, a difference of €84. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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 3 months, with delays averaging 2 hours 38 minutes.

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

Some of the most popular sights in Dublin are Dublin City Centre, Bord Gáis Energy Theatre, and 3Olympia Theatre. These are among the most viewed places in Dublin on KAYAK.

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

• Earliest: departs at 15:45 and lands at 23:14
• Latest: departs at 21:05 and lands at 04:34.

The flight takes about 7h 29m.

Last-minute fares on this route (booked within 2 weeks of departure) run 33% above the route average of €613. Book 14 weeks before departure for the lowest fares.

A direct flight from Chicago O'Hare Intl Airport to Dublin takes 7h 29m, 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.

One-way fares from Chicago O'Hare Intl Airport to Dublin are currently lower than usual. Average one-way flight prices are about €245, which is 45% below the typical average for this route.

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: 84% on time
• Aer Lingus: 78% on time
• United Airlines: 72% on time

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

Afternoon flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time of 10h 45m, compared to 10h 50m via Hartford Bradley Intl (BDL) and 11h 00m via Minneapolis St Paul (MSP).

Dublin is 6 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.

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

Return flights from Chicago O'Hare Intl Airport to Dublin range from €472 to €779, with an average of €613 over the past 12 months. Anything below €472 counts as a good deal.

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

• • Aer Lingus
• • American Airlines
• • Iberia
• • Finnair