£309 Find Cheap Flights from Dublin to Chicago – Compare and Save

O’Hare International Airport is 30min away from the centre of town by bus; a single fare should cost around $17.50 (€14.50). If you’re travelling from Midway International Airport you can expect to get to the centre of Chicago in around 23min via the subway. A single fare will cost around $5 (€4.50).

If you are flying to O’Hare International Airport from Dublin then United Airlines will fly non-stop. So will Aer Lingus and American Airlines. If you fly with TAP Air Portugal then you can expect one stop in Lisbon (LIS). If you are flying to Midway, however, you can expect a layover in Atlanta (ATL) with Virgin Atlantic. You can also fly with KLM, however you will have a layover in Amsterdam (AMS) and then Detroit (DTW).

Among airlines operating Dublin to Chicago 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

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

3 airlines operate flights between Dublin and Chicago. The airlines offering direct flights on this route include:

• Aer Lingus
• United Airlines
• American Airlines

Flights from Dublin to Chicago usually depart from Dublin (DUB) and may arrive at several airports in Chicago area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD).

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
• Finnair: a cabin bag and a checked bag in Economy class
• United 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.

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

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

Prices vary by airline.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £356 return via Dallas/Fort Worth (DFW), compared with £519 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £20–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

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

• Reykjavik Keflavik Intl (KEF) – 53% of one-stop connections
• London Heathrow (LHR) – 15% of one-stop connections
• Kastrup Copenhagen (CPH) – 8% of one-stop connections
• Boston Logan Intl (BOS) – 5% of one-stop connections

Reykjavik Keflavik Intl (KEF) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 10% on the Dublin to Chicago route. Wednesday is the cheapest departure day at £478 return on average, while Sunday is the most expensive at £530, a difference of £52. 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 Dublin to Chicago route, 10% of flights were delayed in the past 3 months, with delays averaging 3 hours 6 minutes.

Morning is the busiest departure period on Dublin to Chicago flights, with 67% leaving in that window. Afternoon departures account for 33%, Evening flights for 0%, and Night flights for 0%.

Some of the most popular sights in Chicago are Grant Park, Magnificent Mile, and United Center. These are among the most viewed places in Chicago on KAYAK.

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

• Earliest: departs at 10:40 and lands at 19:10
• Latest: departs at 16:45 and lands at 01:15.

The flight takes about 8h 30m.

Last-minute fares on this route (booked within 2 weeks of departure) run 19% above the route average of £506. Book 16 weeks before departure for the lowest fares.

A direct flight from Dublin to Chicago takes 8h 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.

One-way fares from Dublin to Chicago are currently higher than usual. Average one-way flight prices are about £743, which is 65% above the typical average for this route.

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

• Aer Lingus: 93% on time
• American Airlines: 88% on time
• United Airlines: 86% on time

On average, flights on this route are punctual 90% 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 Washington, D.C. Dulles Intl (IAD) gives the shortest average 1-stop total travel time of 10h 43m, compared to 11h 08m via Reykjavik Keflavik Intl (KEF) and 11h 35m via Detroit Metropolitan Wayne County (DTW).

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

Since Chicago is served by multiple airports, car hire options and rates can vary depending on which one you fly into.
Near Chicago O'Hare Intl Airport (ORD) – daily rates from around £13:

• Routes Car & Truck Rentals
• Europcar
• Hertz
• Dollar
• Ace

Near Chicago Midway Airport (MDW) – daily rates from around £24:

• Hertz
• Dollar
• Budget
• Alamo
• Rent-A-Wreck

Near Chicago Greater Rockford Airport (RFD) – daily rates from around £22:

• Alamo
• Enterprise Rent-A-Car
• Budget
• Avis
• National

Return flights from Dublin to Chicago range from £426 to £622, with an average of £506 over the past 12 months. Anything below £426 counts as a good deal.

American Airlines is the only airline on the Dublin to Chicago route offering in-flight Wi-Fi. Pricing depends on fare class.