CHI - DUB

€220 Find Cheap Flights from Chicago to Dublin – Compare and Save

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Everything you should know

Cheapest return flight
€418
Typical prices: €471-€778
Icelandair
Mon 12/2Mon 19/2
ORD - DUB • 1 stop
Cheapest direct flights
€440
Typical prices: €508-€818
Aer Lingus
Fri 26/1Fri 16/2
ORD - DUB • Direct
Direct flights
You can fly direct with Aer Lingus, United Airlines, and American Airlines. Average duration is 7h 29m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 7% average savings
Most popular
Insights
Insights
Avoid delays
Most punctual • 82% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 14 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg €367 (return)
Shortest trip • 10h 41m (one-way)
Insights
Insights
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We hope you enjoy your trip to Dublin!
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Flight Deals

Cheap Flights from Chicago to Dublin (CHI-DUB)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Chicago to Dublin

Fri, 12 Feb - Fri, 19 Feb
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
€418Icelandair
Sun, 10 Jan - Fri, 15 Jan
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
€421Icelandair
Wed, 6 Jan - Tue, 12 Jan
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
€422Icelandair
Wed, 17 Feb - Sun, 21 Feb
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
€422Icelandair
Fri, 12 Feb - Fri, 19 Feb
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
€425Icelandair
Fri, 5 Feb - Sun, 14 Feb
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
€426Icelandair
Thu, 18 Feb - Sat, 27 Feb
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
€427Icelandair
Tue, 26 Jan - Tue, 16 Feb
Aer Lingus Logo
21:00 - 10:25ORD  Chicago O'Hare Intl-DUB Dublin
7h 25mdirect
Aer Lingus Logo
16:40 - 19:15DUB  Dublin-ORD Chicago O'Hare Intl
8h 35mdirect
€440Aer Lingus
Sat, 9 Jan - Fri, 22 Jan
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
€444Icelandair
Mon, 11 Jan - Sun, 31 Jan
Icelandair Logo
19:25 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
8h 50m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
€445Icelandair
Booking Insights

Price, demand, and travel trends for Chicago to Dublin flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Chicago to Dublin with more confidence.

How much is a return flight from Chicago to Dublin?

Return flights from Chicago to Dublin start at €418. Prices are below average for this route right now, with typical return fares ranging from €471 to €778. The lowest price found in the past 5 days was €418 on Icelandair.

What is the cheapest Chicago to Dublin flight route?

Chicago O'Hare Intl Airport (ORD) to Dublin (DUB) is the cheapest Chicago to Dublin route, averaging €612 return. Other Chicago to Dublin routes average €699, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Chicago to Dublin?

Wednesday is the cheapest day of the week to fly from Chicago to Dublin and is 7% cheaper than the average day. Friday is the most expensive day with flight prices 7% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Chicago to Dublin?

  • January is the cheapest month to fly from Chicago to Dublin at €442 return.
  • June (€820) and July (€696) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 85% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Chicago to Dublin the cheapest?

Flights from Chicago to Dublin are cheapest 14 weeks before departure. Booking in this window typically costs about 37% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Chicago to Dublin flights

Low season

January

Cheapest flight

€220
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (34% more expensive on average)
Flights from Chicago O'Hare Intl Airport to Dublin

When to book flights from Chicago to Dublin

Are your dates flexible? Find out the best times to travel from Chicago to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Chicago to Dublin flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Can I take a moment and rest as I wait for my flight at O’Hare Airport?

    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.

  • Are there changing rooms at O’Hare Airport?

    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.

  • Does Dublin airport feature lounges?

    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.

  • Can I get accommodation near Dublin Airport?

    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.

  • Which airlines offer extra legroom and free seat selection on Chicago to Dublin flights?

    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.

  • Which airlines are available on the route from Chicago to Dublin?

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

    • Aer Lingus
    • United Airlines
    • American Airlines

  • Which airports can I use when flying from Chicago to Dublin?

    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).

  • Which airlines include bags at no extra cost on Chicago to Dublin flights?

    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.

  • Which cabin classes can I book on flights from Chicago to Dublin?

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

    • Economy class
    • Business Class

  • How much can I save by having a stopover when flying from Chicago to Dublin?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average €367 return via Toronto Pearson Intl (YYZ), compared with €645 for direct.

  • What is the standard checked bag allowance on flights from Chicago to Dublin?

    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.

  • Which airports do connecting flights from Chicago to Dublin pass through?

    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.

  • Can I save money by using flexible dates for flights from Chicago to Dublin?

    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 €575 return on average, while Friday is the most expensive at €659, 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.

  • At what point is a flight considered delayed on the route from Chicago to Dublin?

    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 39 minutes.

  • How are flight departures from Chicago to Dublin spread across the day?

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

  • What popular places can I visit in Dublin?

    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.

  • What are the earliest and latest flights from Chicago to Dublin?

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

    • Earliest: departs at 15:45 and lands at 23:14
    • Latest: departs at 22:20 and lands at 05:49.

    The flight takes about 7h 29m.

  • How expensive are last-minute Chicago to Dublin flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 33% above the route average of €612. Book 14 weeks before departure for the lowest fares.

  • How long is a flight from Chicago to Dublin?

    A direct flight from Chicago to Dublin takes 7h 29m, covering 9,468 km.

  • Do I need a passport to fly from Chicago to Dublin?

    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.

  • How are flight prices from Chicago to Dublin looking right now?

    One-way fares from Chicago to Dublin are currently lower than usual. Average one-way flight prices are about €239, which is 47% below the typical average for this route.

  • How does American Airlines's on-time performance compare to other airlines on Chicago to Dublin flights?

    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: 82% on time
    • Aer Lingus: 78% on time
    • United Airlines: 71% on time

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

  • How do delay rates compare for morning and evening flights from Chicago to Dublin?

    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.

  • How much time can I save by choosing a different stopover airport from Chicago to Dublin?

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

  • What is the time difference between Chicago and Dublin?

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

  • Which car hire options are available at Dublin Airport (DUB)?

    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

  • How much should I expect to pay for a Chicago to Dublin flight?

    Return flights from Chicago to Dublin range from €471 to €778, with an average of €612 over the past 12 months. Anything below €471 counts as a good deal.

  • Which airlines offer Wi-Fi on Chicago to Dublin flights?

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

    • • Aer Lingus
    • • American Airlines
    • • Iberia
    • • 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.

Your guide to booking Chicago to Dublin flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure instead of Friday. On this route, Wednesday flights average €575 – about €84 less than Friday (13% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 14 weeks before you fly. On this route, that window historically saves about 37% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Chicago to Dublin trip for January. Fares historically average €442 return in that month – typically €378 less than the most expensive month, which is June (based on the last 12 months).
  • If arriving on time is high on your priority list, American Airlines is the strongest pick on this route. 82% of American Airlines flights from Chicago to Dublin arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 77%. When flights on this route do arrive late, the average delay is 2 hours39 minutes, so choosing an airline with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Toronto Pearson Intl Airport (YYZ) can be cheaper than flying direct. The cheapest stopover option averages €367 return on this route – about €277 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Dublin Airport.
    - Clayton Hotel Dublin Airport
    - Maldron Hotel Dublin Airport
    - Metro Hotel Dublin Airport
  • Travelers flying to Dublin can take express flights from Chicago, courtesy of British Airlines and United Airlines. Passengers can commute between the terminals and the parking garage using shuttle buses that O’Hare airport provides. The facility has four terminals that facilitate domestic and international connections.
  • When flying from Chicago, you can depart from O’Hare airport (ORD) or Midway Airport (MDW) for incredible flight services. Expect to land at Dublin airport (DUB) after several hours. Services at Chicago airports include free carry-on bag and luggage inspection. If you want to fly nonstop, you can use Aer Airlines.
  • Dublin Airport (DUB) is the chief option and is the busiest among the airports in Ireland. Travelers enjoy a reliable network of a variety of hauls, both medium and short. The airport is famous for clearing travelers onboard to the US at the border.
  • Accessing Dublin city using a bus or coach offers the most affordable alternative. The availability of these services 24h a day makes it convenient regardless of the time you land at Dublin airport. You can catch the buses in zone 15 at the Dublin Airport Bus Park. The bus fare varies depending on where you want to go.
  • It takes less than 15min for passengers to settle at the boarding gate, thanks to the exceptional services that Dublin Airport has to offer. Premium services at terminals 1 and 2 include drinks and food. Caffe Nero, at Terminal 2 arrivals, sells coffee, tea, and salads.
  • Dublin Airport boasts hosting Our Lady Queen of Heaven for the Catholics and an open room where all denominations can pray. People can access the prayer room at any time of the day since it offers a quiet and peaceful environment.

Prefer to fly direct from Chicago to Dublin?

 
Find which airlines fly direct from Chicago to Dublin Airport, which days they fly and book direct flights.

Direct departures

Chicago to Dublin

Monday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Tuesday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Wednesday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Thursday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Friday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Saturday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Sunday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

See more direct flights

Direct returns

Dublin to Chicago

Monday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Tuesday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Wednesday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Thursday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Friday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Saturday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Sunday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

See more direct flights

More options for your flight from Chicago to Dublin

Complete your trip to Dublin with a hotel stay or car hire