DUB - ORD

£309 Find Cheap Flights from Dublin to Chicago O'Hare Airport – Compare and Save

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Everything you should know

Cheapest return fare
£309
Typical prices: £348-£472
Icelandair
Thu 26/11Sun 29/11
DUB - ORD • 1 stop
Cheapest direct flights
£392
Typical prices: £347-£444
Brussels Airlines
Thu 5/11Thu 12/11
DUB - ORD • Direct
Advice from real travellers
Aer Lingus Economy seats are 17.7 inches wide; United Economy Plus adds legroom.
At Dublin, allow three hours for U.S. pre-clearance, especially in summer.
Expert advice
Expert advice
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Direct flights
You can fly direct with Aer Lingus and United Airlines. Average duration is 8h 20m
Direct flights
Direct flights
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Direct flights
Direct flights
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Avoid delays
Most punctual • 93% on-time
Best time • Fewest delays
Insights
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Top stopover airports
Cheapest • Avg £359 (return)
Shortest trip • 11h 38m (one-way)
Insights
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When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 21% compared to booking last minute.
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When to travel
Cheapest • 29% price drop
Most popular
Good to know
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Flight Deals

Cheap Flights from Dublin to Chicago (DUB-ORD)

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

Recent return flight deals from Dublin to Chicago

Thu, 26 Nov - Sun, 29 Nov
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
£309Icelandair
Thu, 28 Jan - Sun, 31 Jan
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
£309Icelandair
Thu, 5 Nov - Thu, 12 Nov
Lufthansa Logo
05:10 - 13:10DUB  Dublin-ORD Chicago O'Hare Intl
14h 00m1 stop Frankfurt am Main
Lufthansa Logo
21:50 - 17:10ORD  Chicago O'Hare Intl-DUB Dublin
13h 20m1 stop Munich Franz Josef Strauss
£380Lufthansa
Thu, 5 Nov - Thu, 12 Nov
Lufthansa Logo
05:10 - 15:20DUB  Dublin-ORD Chicago O'Hare Intl
16h 10m1 stop Frankfurt am Main
Lufthansa Logo
21:50 - 17:10ORD  Chicago O'Hare Intl-DUB Dublin
13h 20m1 stop Munich Franz Josef Strauss
£381Lufthansa
Thu, 5 Nov - Thu, 12 Nov
United Airlines Logo
09:00 - 15:38DUB  Dublin-ORD Chicago O'Hare Intl
12h 38m1 stop Toronto Pearson Intl
United Airlines Logo
13:30 - 09:55ORD  Chicago O'Hare Intl-DUB Dublin
14h 25m2 stops Washington, D.C. Dulles Intl Newark
£404United Airlines
Sun, 7 Feb - Sun, 14 Feb
United Airlines Logo
09:00 - 17:43DUB  Dublin-ORD Chicago O'Hare Intl
14h 43m1 stop Toronto Pearson Intl
United Airlines Logo
18:30 - 08:10ORD  Chicago O'Hare Intl-DUB Dublin
7h 40mdirect
£404United Airlines
Thu, 26 Nov - Sun, 29 Nov
Aer Lingus Logo
11:30 - 14:10DUB  Dublin-ORD Chicago O'Hare Intl
8h 40mdirect
Aer Lingus Logo
15:55 - 05:15ORD  Chicago O'Hare Intl-DUB Dublin
7h 20mdirect
£406Aer Lingus
Mon, 8 Feb - Sat, 13 Feb
Aer Lingus Logo
16:40 - 19:15DUB  Dublin-ORD Chicago O'Hare Intl
8h 35mdirect
Aer Lingus Logo
21:00 - 10:25ORD  Chicago O'Hare Intl-DUB Dublin
7h 25mdirect
£411Aer Lingus
Thu, 22 Oct - Mon, 16 Nov
Finnair Logo
09:30 - 19:25DUB  Dublin-ORD Chicago O'Hare Intl
15h 55m1 stop Philadelphia
Finnair Logo
16:31 - 17:20ORD  Chicago O'Hare Intl-DUB Dublin
18h 49m2 stops New York John F Kennedy Intl Helsinki-Vantaa
£611Finnair
Thu, 22 Oct - Tue, 10 Nov
Finnair Logo
09:30 - 19:25DUB  Dublin-ORD Chicago O'Hare Intl
15h 55m1 stop Philadelphia
Finnair Logo
16:31 - 17:20ORD  Chicago O'Hare Intl-DUB Dublin
18h 49m2 stops New York John F Kennedy Intl Helsinki-Vantaa
£611Finnair
Booking Insights

KAYAK’s insights & trends for Dublin to Chicago flights

Get data-powered insights and trends into flights from Dublin to Chicago to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Dublin to Chicago O'Hare Intl Airport?

Flight prices are below average for this route right now.

Flights to Chicago O'Hare Intl Airport from Dublin usually cost between £415 and £530 in November.
The lowest price found in the past 5 days was £309 on Icelandair (26 Nov–29 Nov).

What’s the cheapest day of the week to fly from Dublin to Chicago O'Hare Airport?

When flying from Dublin to Chicago O'Hare Airport, you should consider leaving on a Wednesday and avoid Saturdays if you are looking for the best rates. For your return to Dublin, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from Dublin to Chicago O'Hare Intl Airport?

The cheapest month for flights from Dublin to Chicago O'Hare Intl Airport is November, where tickets cost £354 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £626 and £592 respectively.

Can I save money by flying with a stopover from Dublin to Chicago O'Hare Intl Airport?

No, with an average price for the route of £406, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Dublin to Chicago O'Hare Intl Airport?

To get a below average price on the flight from Dublin to Chicago O'Hare Intl Airport, you should book around 2 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

Expert advice for your flight from Dublin to Chicago

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Ramsey Qubein

Ramsey Qubein

Expert on DUB

An avid traveller and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg, among others, he explores the latest trends in aviation, hospitality, cruises and business.

Good to know - Cheap tickets from Dublin to Chicago O'Hare Airport

Low season

September

Cheapest flight

£309
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 4% lower on average.
Flight from Dublin to Chicago O'Hare Airport

When to book flights from Dublin to Chicago

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

Flights from Dublin to Chicago: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Dublin to Chicago 
JohannaFlew with Aer Lingus-Feb 2026
Are Ling’s was great, and boards from the back of the plane, which made boarding way less chaotic and much quicker.
Verified travelerFlew with Iberia-Sept 2024
Taking the coach bus to Dublin from Castlebar to departures was affordable and easy.
ConnerFlew with Aer Lingus-Sept 2024
You need almost 2 hours to be sure you will clear US pre clearance
Verified travelerFlew with Lufthansa-Aug 2024
Give yourself enough time to go through US Customs in Dublin.

FAQs for booking Dublin to Chicago O'Hare Airport flights

  • Which airlines fly directly to Chicago from Dublin International Airport (DUB)?

    If you are flying with Aer Lingus, then you can book a nonstop trip from Dublin to Chicago O’Hare International Airport. If you are flying with KLM, you can expect one layover in Amsterdam (AMS), and if you are flying with British Airways, you can expect a layover in London’s Heathrow (LHR).

  • Where can I charge my phone once I land in Chicago O'Hare International Airport?

    As you arrive at the airport, once you have collected your baggage but before you are processed by customs, you will see a charging station near gate m13. Make sure you have an adaptor, there should be plenty on sale at either the duty-free in Dublin or the one in O’Hare when you arrive.

  • Where can I get something to eat at O’Hare International Airport?

    Most international arrivals terminals have one or two restaurants as you arrive, however Chicago O'Hare Interanational Airport (ORD) offers a choice of several restaurants; from Chinese fusion to classic fast-food, you will have a variety of choices to get your first meal from when you arrive in O'Hare's terminal five.

  • What is the cheapest flight from Dublin to Chicago O'Hare Intl Airport?

    In the last 5 days, the lowest price for a flight from Dublin to Chicago O'Hare Intl Airport was £354 for a one-way ticket and £309 for a return.

  • Which airports will I be using when flying from Dublin to Chicago O'Hare Airport?

    When flying out of Dublin you will be using Dublin. You will be landing at Chicago O'Hare Airport, also known as Chicago O'Hare Intl.

  • Which airlines offer Wi-Fi service onboard planes from Dublin to Chicago O'Hare Airport?

    American Airlines, KLM, Air France, Aer Lingus, and Delta offer inflight Wi-Fi service on the Dublin to Chicago O'Hare Airport flight route.

  • Which aircraft models fly most regularly from Dublin to Chicago O'Hare Airport?

    The Airbus A330-300 is the aircraft model that flies most regularly on the Dublin to Chicago O'Hare Airport flight route.

  • Which airline alliances offer flights from Dublin to Chicago O'Hare Airport?

    Star Alliance, and oneworld are the airline alliances operating flights between Dublin and Chicago O'Hare Airport, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Dublin to Chicago O'Hare Airport?

    There are direct flights from Dublin to Chicago O'Hare Airport on a daily basis.

  • Which is the best airline for flights from Dublin to Chicago, Finnair or United Airlines?

    The two airlines most popular with KAYAK users for flights from Dublin to Chicago are Finnair and United Airlines. With an average price for the route of £657 and an overall rating of 7.6, Finnair is the most popular choice. United Airlines is also a great choice for the route, with an average price of £592 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Dublin to Chicago O'Hare Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dublin to Chicago O'Hare Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dublin to Chicago O'Hare Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from Dublin is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dublin to Chicago O'Hare Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Chicago O'Hare Airport with an airline and back to Dublin with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dublin to Chicago O'Hare Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago O'Hare Airport from Dublin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Dublin to Chicago O'Hare Intl Airport

  • Looking for a cheap flight from Chicago O'Hare Airport to Dublin? 25% of our users found flights on this route for £561 or less one-way and £108 or less round-trip.
  • If you’re wanting to get straight to the centre of the city from Chicago O'Hare International Airport (ORD), then a good idea would be to take Chicago’s blue line subway, travellers from the airport get a discount from the airport as well. The subway trip should cost around $5 (€4).
  • If you're wanting to get to the terminal from the car park easily and want ease of access when you come back to Dublin International Airport (DUB), you can use the Platinum Service that is available at Dublin International. The Platinum Service offers a range of features like Fastrack and access to airport lounges. It also offers you private parking spaces at the airport. The lowest price comes in at around €255 for a full package, with parking costing around €40 a day.
  • If you are travelling with small children, Chicago O'Hare International Airport should have prams available for rent. The airport will not charge you for use of the prams if you are able to produce either a boarding pass or another form of verification that you are an airport customer.

Prefer to fly direct from Dublin to Chicago O'Hare Airport?

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

Direct departures

Dublin to Chicago O'Hare Intl

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

Chicago O'Hare Intl 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

More options for your flight from Dublin to Chicago

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