Cheap flights from Chicago O'Hare Intl Airport to Ireland from €195
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 Ireland departing on 26/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago O'Hare Intl Airport to Ireland
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
Aer Lingus flights from Chicago O'Hare Intl Airport to Ireland
Our best Aer Lingus deals on Chicago O'Hare Intl Airport to Ireland flight tickets
Finnair flights from Chicago O'Hare Intl Airport to Ireland
Our best Finnair deals on Chicago O'Hare Intl Airport to Ireland flight tickets
See travel insights to Ireland from
How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Ireland
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 Ireland?
The month of January is another great option to travel to Ireland, with average flight prices from Chicago O'Hare Intl Airport averaging around €462.
What is the cheapest day to depart on your flight to Ireland?
The cheapest day to depart on your flight to Ireland is on a Saturday when prices can be found for as low as €630. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €755. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.
What is the cheapest time of day to depart on your flight to Ireland?
In the afternoon is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Ireland when you can find flight prices for as low as €666. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is at midday when prices are around €801.
What is the cheapest Chicago O'Hare Intl to Ireland flight route?
Fly from Chicago O'Hare Intl to Dublin for the best Chicago O'Hare Intl - Ireland flight prices
How far in advance should I book a flight to Ireland?
You are more likely to see cheaper flights to Ireland from Chicago O'Hare Intl Airport when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €615 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Chicago O'Hare Intl Airport for as low as €574 on momondo.
What cabin class options are available on Chicago O'Hare Intl to Ireland flights?
There are 1 cabin classes available to choose from on Chicago O'Hare Intl to Ireland 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 Ireland?
TAP AIR PORTUGAL, Icelandair, and JetBlue are the most popular carriers operating from Chicago O'Hare Intl to Ireland
Which airlines fly to Ireland?
American Airlines, Aer Lingus and British Airways are the top three most popular airlines that fly to Ireland from Chicago O'Hare Intl Airport according to our data. American Airlines is the first choice among our users, with 31% of people opting to fly with this airline when travelling to Ireland. Keep in mind that there are 4 different airlines that fly to Ireland 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 Ireland on average per day?
As of May 2025, there are 11 flights per day flying from Chicago O'Hare Intl Airport to Ireland. The most common time of day flights depart is 20:00, with 72% of flights taking off in the evening.
How many flights depart from Chicago O'Hare Intl Airport to Ireland on average per week?
As of May 2025, there are 77 flights per week flying from Chicago O'Hare Intl Airport to Ireland. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
Cheap Chicago O'Hare Intl Airport to Ireland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Ireland
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Ireland?
Prices for flights from Chicago O'Hare Intl Airport to Ireland refresh daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Ireland?
There are 4 operators available for flights from Chicago O'Hare Intl Airport to Ireland as of May 2025.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Ireland?
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 stopovers 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 Ireland.
What documentation or ID do you need to fly to Ireland?
The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chicago O'Hare Intl Airport to Ireland?
Based on momondo bookings for flights between Chicago O'Hare Intl Airport and Ireland, the leading plane model is Boeing 787-8 Dreamliner, making up 41.46% of the total bookings. Other popular models include Boeing 787 Dreamliner with 15.85%, Airbus A330 with 11.60%, and Boeing 787-10 Dreamliner with 7.38%.
Best airlines flying from Chicago O'Hare Intl Airport to Ireland
Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Ireland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom €467 | Free Cancellation | Rating 7.0 1,076 reviews | |||
| PriceFrom €618 | Free Cancellation | Rating 6.6 6,845 reviews | |||
| PriceFrom €667 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom €678 | Free Cancellation | Rating 7.8 1,334 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Ireland?
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 Ireland from Chicago.
Can I find flights from Chicago to Ireland with flexible booking policies on momondo?
Yes. All flights to Ireland from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Chicago to Ireland?
Once all potential Chicago to Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Chicago to Ireland right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Chicago to Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ireland and let you know when they change.