$248 Find Cheap Flights from Chicago to Dublin - Compare and Save

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.

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 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 and Dublin. The airlines offering nonstop flights on this route include:

• Aer Lingus
• United Airlines

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).

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 travelers should check the fare details before booking.

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

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

Prices vary by airline.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $427 round-trip via Toronto Pearson Intl (YYZ), compared to $750 for nonstop.

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.

One-stop flights from Chicago to Dublin most commonly connect through:

• Toronto Pearson Intl (YYZ) - 49% of one-stop connections
• Reykjavik Keflavik Intl (KEF) - 34% 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 to Dublin route. Wednesday is the cheapest departure day at $668 round-trip on average, while Friday is the most expensive at $766, a difference of $98. 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 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 to Dublin flights, with 33% of flights 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, Trinity College and St. Stephen's Green. These are among the most viewed places in Dublin on KAYAK.

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

• Earliest: departs at 3:45 pm and lands at 11:14 pm
• Latest: departs at 9:05 pm and lands at 4:34 am.

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 $711. Book 14 weeks before departure for the lowest fares.

A nonstop flight from Chicago to Dublin takes 7h 29m, 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.

One-way fares from Chicago to Dublin are currently lower than usual. Average one-way flight prices are about $302, which is 42% 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 to Dublin flights are:

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

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

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 Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 10h 41m, compared with 10h 45m via Montreal Pierre Elliott Trudeau Intl (YUL) and 10h 50m via Hartford Bradley Intl (BDL).

Dublin is 6 hours ahead of Chicago (Irish Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

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

Round-trip flights from Chicago to Dublin range from $547 to $904, with an average of $711 over the past 12 months. Anything below $547 counts as a good deal.

Four airlines offer in-flight Wi-Fi on Chicago to Dublin flights:

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