Cheap flights from Dublin to Chicago from €240
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Chicago departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Scandinavian Airlines flights from Dublin to Chicago O'Hare Intl Airport
Our best Scandinavian Airlines deals on Dublin to Chicago O'Hare Intl Airport flight tickets
TAP AIR PORTUGAL flights from Dublin to Chicago O'Hare Intl Airport
Our best TAP AIR PORTUGAL deals on Dublin to Chicago O'Hare Intl Airport flight tickets
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How to get the cheapest flight ticket from Dublin to Chicago O'Hare Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Chicago O'Hare Intl Airport?
In general, February is the cheapest month to fly from Dublin to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €436. If you are unable to visit Chicago O'Hare Intl Airport during the month of February, then departing from Dublin during the month November is also very affordable. Most momondo users find prices during this month for around €446.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
On average, the least expensive day to fly to Chicago O'Hare Intl Airport from Dublin is on a Monday. momondo users have found tickets for Monday departures for as low as €614. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Chicago O'Hare Intl Airport is Sunday, with ticket prices averaging around €700.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
Our data shows that the cheapest Dublin to Chicago O'Hare Intl Airport flights are usually those with departure times in the evening. Our users have found flights to Chicago O'Hare Intl Airport in the evening for as low as €525. Flights to Chicago O'Hare Intl Airport are more costly in the morning, with an average ticket price of €655. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Dublin to Chicago O'Hare Intl flight route?
Fly from Dublin to Chicago O'Hare Intl for the best Dublin - Chicago O'Hare Intl flight prices
How far in advance should I book a flight to Chicago O'Hare Intl Airport?
You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Dublin when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around €519 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Dublin for as low as €422 on momondo.
What cabin class options are available on Dublin to Chicago O'Hare Intl flights?
There are 2 cabin classes available to choose from on Dublin to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Dublin to Chicago O'Hare Intl Airport flights?
You could potentially save up to 25% on your flight if you consider stops on a Dublin to Chicago O'Hare Intl Airport flight.
How have Dublin to Chicago O'Hare Intl Airport flight prices changed over time?
As of June 2025, prices for Dublin to Chicago O'Hare Intl Airport flights are approximately 2% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Dublin to Chicago O'Hare Intl?
Icelandair, TAP AIR PORTUGAL, and Scandinavian Airlines are the most popular carriers operating from Dublin to Chicago O'Hare Intl
Which airlines fly to Chicago O'Hare Intl Airport?
Aer Lingus, United Airlines and Icelandair are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Dublin according to our data. Aer Lingus is the first choice among our users, with 70% of people opting to fly with this airline when travelling to Chicago O'Hare Intl Airport. Keep in mind that there are 6 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Dublin to Chicago O'Hare Intl Airport on average per day?
The number of flights available between Dublin and Chicago O'Hare Intl Airport is 17 per day as of June 2025. The most frequent departure time is 11:00, with 52% of daily flights leaving in the afternoon.
How many flights depart from Dublin to Chicago O'Hare Intl Airport on average per week?
As of June 2025, there are 123 flights per week flying from Dublin to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Thu, with 15% of flights taking off on this day.
When to book flights from Dublin to Chicago O'Hare Intl Airport
Cheap Dublin to Chicago O'Hare Intl Airport (DUB to ORD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Dublin to Chicago O'Hare Intl Airport
How far is Dublin to Chicago O'Hare Intl by plane?
Chicago O'Hare Intl is 5895.0 km away from Dublin. In terms of flight time, this usually takes a little over 8h 00m.
When did momondo last update prices for flights from Dublin Airport to Chicago O'Hare Intl Airport?
Prices for flights from Dublin Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Dublin Airport to Chicago O'Hare Intl Airport?
There are 6 operators available for flights from Dublin Airport to Chicago O'Hare Intl Airport as of June 2025.
How old do you have to be to fly from Dublin Airport to Chicago O'Hare Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dublin Airport to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Dublin to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Dublin to Chicago O'Hare Intl Airport is Boeing 787-8 Dreamliner, representing 34.72% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 23.84%, Airbus A330-300 at 20.82%, and Airbus A330 at 8.68%.
What is the most popular airline from Dublin to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Dublin to Chicago O'Hare Intl Airport is Aer Lingus, representing 65% of all bookings. The subsequent popular airlines are United Airlines at 10%, Icelandair at 9%, and British Airways at 9%.
Best airlines flying from Dublin to Chicago O'Hare Intl Airport
Compare and see reviews for airlines that fly from Dublin to Chicago O'Hare Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom €336 | Free Cancellation | Rating 6.6 7,016 reviews | |||
| PriceFrom €340 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom €351 | Free Cancellation | Rating 7.1 1,117 reviews | |||
| PriceFrom €403 | Free Cancellation | Rating 7.0 2,778 reviews | |||
| PriceFrom €437 | Free Cancellation | Rating 7.4 8,793 reviews | |||
| PriceFrom €441 | Free Cancellation | Rating 7.2 10,000 reviews |
United Airlines Flights From Dublin to Chicago O'Hare Intl Airport
United Airlines flies from Dublin to Chicago O'Hare Intl Airport around 7 times per week, with 8,793 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Dublin to Chicago O'Hare Intl Airport in the last 72 hours was €505 (round-trip), much lower than the average airfare cost of €703 for United Airlines flights on this route.
American Airlines Flights From Dublin to Chicago O'Hare Intl Airport
The best American Airlines deal for Dublin to Chicago O'Hare Intl Airport flight tickets found on momondo in the last 72 hours was €510, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at €745 round-trip. American Airlines operates 21 flights out of Dublin into Chicago O'Hare Intl Airport in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.
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Why should I use momondo to find a flight deal from Dublin to Chicago?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Dublin to Chicago . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Dublin to Chicago with flexible booking policies on momondo?
All flight searches from Dublin to Chicago on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Dublin to Chicago?
momondo provides multiple filters to help you find the best flight to Chicago from Dublin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Dublin to Chicago right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Dublin to Chicago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.