$256 Find Cheap Flights from Chicago to Dublin - Compare and Save

These are the earliest and latest flight times available from Chicago to Dublin:

• Earliest: departs at 3:55 pm and lands at 11:25 pm
• Latest: departs at 9:05 pm and lands at 4:35 am.

The flight takes about 7h 30m.

Four cabin classes are available on flights from Chicago to Dublin:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from Chicago to Dublin takes 7h 30m, covering 3,656 miles.

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.

Round-trip flights from Chicago to Dublin range from $554 to $917, with an average of $722 over the past 12 months. Anything below $554 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 35% above the $722 route average. Book 14 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $431 round-trip via Toronto Pearson Intl (YYZ), compared to $765 for nonstop.

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 to Dublin flights are:

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

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

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $55–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

Evening is the busiest departure period on Chicago to Dublin flights, with 66% of flights 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 to Dublin flights:

• Aer Lingus
• American Airlines
• Finnair

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

One-way fares from Chicago to Dublin are currently lower than usual. Average one-way flight prices are about $305, which is 38% below the typical average for this route.

Dublin Airport (DUB) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

• Budget
• Sixt
• Easirent
• Europcar
• Thrifty

Flights from Chicago to Dublin may depart from several airports in Chicago area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD). Flights usually 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 to Dublin route, 23% of flights were delayed in the past 3 months, with delays averaging 2h 39m.

One-stop flights from Chicago 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 to Dublin. Wednesday is the cheapest departure day at $681 round-trip on average, while Friday is the most expensive at $784, a difference of $103.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between Chicago and Dublin. The airlines offering nonstop flights on this route include:

• Aer Lingus
• United Airlines

Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 10h 41m, compared with 10h 42m via Montreal Pierre Elliott Trudeau Intl (YUL) and 10h 50m via Hartford Bradley Intl (BDL).

Dublin is 5 hours ahead of Chicago (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 St. Stephen's Green, St. Patrick's Cathedral and Aviva Stadium. These are among the most viewed places in Dublin on KAYAK.

Among airlines operating Chicago 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

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

You can take a moment and relax at Hilton O’Hare as you wait to catch your flight. If you plan to fly a day later, the hotel offers accommodation. The terminals feature an elegant Urban Garden designed as a waiting area for travelers. The airport has elevators in all terminals with braille and enhanced numbers for physically challenged passengers to access.

At Terminal 1, you can find a restroom and a shower room, among other facilities. The changing rooms are accessible via elevator, and they feature a changing table. There are wall-mounted toilets and a modern communication system. The doors to these amenities are automatic, making them safe for any user.

Terminals 1 and 2 feature several waiting rooms where you can read journals and newspapers as you enjoy complimentary refreshments and drinks. What more, the lounges have free Wi-Fi and computer access.

You can access hotels as close as 0.5 miles from the airport. They include Clayton hotel, which offers 24/7 accommodation services. The hotels have comfortable beds, excellent food, and friendly staff. You can access the hotels using the airport shuttle buses that operate 24h a day. There are several classes of rooms depending on your requirements.