Cheap flights from Chicago O'Hare Intl Airport to Dublin from $211
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Dublin departing on 8/7. 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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Aer Lingus flights from Chicago O'Hare Intl Airport to Dublin
Our best Aer Lingus deals on Chicago O'Hare Intl Airport to Dublin flight tickets
TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to Dublin
Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to Dublin flight tickets
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How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Dublin
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 Dublin?
In general, January is the cheapest month to fly from Chicago O'Hare Intl Airport to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $524. If you’re not able to fly to Dublin in January, then November is your next best option. Flight prices from Chicago O'Hare Intl Airport to Dublin during November average around $541.
What is the cheapest day to depart on your flight to Dublin?
The cheapest day to depart from Chicago O'Hare Intl Airport to Dublin is on a Tuesday. Travelers who choose to depart for Dublin on a Tuesday will often find tickets for as low as $736. Flights from Chicago O'Hare Intl Airport to Dublin on a Friday will generally be more expensive and average around $810. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Dublin?
At noon is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Dublin when you can find flight prices for as low as $735. Flying to Dublin at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $771.
What is the cheapest Chicago O'Hare Intl to Dublin flight route?
Fly from Chicago O'Hare Intl to Dublin for the best Chicago O'Hare Intl - Dublin flight prices
How far in advance should I book a flight to Dublin?
You are more likely to see cheaper flights to Dublin from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $693 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Chicago O'Hare Intl Airport for as low as $634 on momondo.
What cabin class options are available on Chicago O'Hare Intl to Dublin flights?
There are 3 cabin classes available to choose from on Chicago O'Hare Intl to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Chicago O'Hare Intl to Dublin?
TAP AIR PORTUGAL and Icelandair are the most popular carriers operating from Chicago O'Hare Intl to Dublin
What airlines fly to Dublin?
Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to Dublin from Chicago O'Hare Intl Airport according to our data. Aer Lingus is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 17 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.
How many flights depart from Chicago O'Hare Intl Airport to Dublin on average per day?
The number of flights available between Chicago O'Hare Intl Airport and Dublin is 17 per day as of July 2025. The most frequent departure time is 10:00PM, with 82% of daily flights leaving in the evening.
How many flights depart from Chicago O'Hare Intl Airport to Dublin on average per week?
As of July 2025, 119 flights take off from Chicago O'Hare Intl Airport and land in Dublin each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
When to book flights from Chicago O'Hare Intl Airport to Dublin
Cheap Chicago O'Hare Intl Airport to Dublin (ORD to DUB) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Dublin
How far is Chicago O'Hare Intl to Dublin by plane?
There are 3663.0 mi between Chicago O'Hare Intl and Dublin. By plane, this route typically takes 7h 20m.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Dublin Airport?
Prices for flights from Chicago O'Hare Intl Airport to Dublin Airport were last updated today.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Dublin Airport?
There are 17 operators available for flights from Chicago O'Hare Intl Airport to Dublin Airport as of July 2025.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Dublin Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Dublin Airport.
What documentation or ID do you need to fly to Dublin Airport?
The required travel and health documents for your Dublin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Dublin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Chicago O'Hare Intl Airport to Dublin?
Based on momondo bookings for flights between Chicago O'Hare Intl Airport and Dublin, the leading plane model is Boeing 787-8 Dreamliner, making up 46.79% of the total bookings. Other popular models include Boeing 787 Dreamliner with 16.21%, Airbus A330 with 10.91%, and Boeing 787-9 Dreamliner with 6.01%.
What is the most popular airline from Chicago O'Hare Intl Airport to Dublin?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago O'Hare Intl Airport to Dublin is Aer Lingus (52% of total bookings). The next most popular airlines are United Airlines (18%), American Airlines (11%), and Icelandair (5%).
Best airlines flying from Chicago O'Hare Intl Airport to Dublin
Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Dublin with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $355 | Free Cancellation | Rating 7.0 514 reviews | |||
| PriceFrom $393 | Free Cancellation | Rating 7.1 1,908 reviews | |||
| PriceFrom $400 | Free Cancellation | Rating 7.3 1,416 reviews | |||
| PriceFrom $446 | Free Cancellation | Rating 7.1 1,144 reviews | |||
| PriceFrom $473 | Free Cancellation | Rating 7.5 1,654 reviews | |||
| PriceFrom $482 | Free Cancellation | Rating 7.8 1,367 reviews | |||
| PriceFrom $511 | Free Cancellation | Rating 7.0 2,820 reviews | |||
| PriceFrom $519 | Free Cancellation | Rating 6.6 7,093 reviews | |||
| PriceFrom $526 | Free Cancellation | Rating 7.6 1,306 reviews | |||
| PriceFrom $526 | Free Cancellation | Rating 7.2 10,000 reviews |
Finnair Flights From Chicago O'Hare Intl Airport to Dublin
Finnair flight deals from Chicago O'Hare Intl Airport to Dublin start from $526 round-trip. Over the 7 Finnair flights for this route in a normal week, average airfare is usually $821 round-trip - but some users have found much cheaper deals with momondo.
SWISS Flights From Chicago O'Hare Intl Airport to Dublin
SWISS (7.5/10 from 1,654 reviews) operates around 7 flights from Chicago O'Hare Intl Airport to Dublin in any given week. The average SWISS airfare for this route is around $818, with deals from around $473 rare but found on momondo. Referenced prices are for round-trip Chicago O'Hare Intl Airport to Dublin flight searches in the last 72 hours.
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Why should I use momondo to find a flight deal from Chicago to Dublin?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Dublin from Chicago.
Can I find flights from Chicago to Dublin with flexible booking policies on momondo?
All flight searches from Chicago to Dublin on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Chicago to Dublin?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Dublin.
I’m not ready to book a flight from Chicago to Dublin right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Chicago to Dublin 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.