Cheap flights from Chicago O'Hare Intl Airport to Ireland from $222
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 7/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
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One-way
Last minute
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Cheap round-trip flights
These are some of the best round-trip flight deals from Chicago O'Hare Intl Airport to Ireland that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Chicago O'Hare Intl Airport to Ireland.
Cheap last minute flights
Planning a quick getaway from Chicago O'Hare Intl Airport to Ireland? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to Ireland, so you can enjoy a seamless trip without layovers.
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
Aer Lingus![Aer Lingus]()
Aug 13![Aer Lingus]()
Aug 21
ORD3:45 pmChicago O'Hare Intl
7h 25m
DUB5:10 amDublin
DUB4:40 pmDublin
8h 20m
ORD7:00 pmChicago O'Hare Intl
Aer Lingus![Aer Lingus]()
Aug 15![Aer Lingus]()
Aug 22
ORD3:45 pmChicago O'Hare Intl
7h 25m
DUB5:10 amDublin
DUB11:35 amDublin
8h 25m
ORD2:00 pmChicago O'Hare Intl
SWISS flights from Chicago O'Hare Intl Airport to Ireland
Our best SWISS deals on Chicago O'Hare Intl Airport to Ireland flight tickets
SWISS![SWISS]()
May 6![SWISS]()
May 13
ORD2:20 pmChicago O'Hare Intl
15h 50m
1 stop
DUB12:10 pmDublin
DUB6:40 pmDublin
27h 15m
1 stop
ORD3:55 pmChicago O'Hare Intl
SWISS![SWISS]()
May 7![SWISS]()
May 13
ORD8:15 pmChicago O'Hare Intl
7h 30m
DUB9:45 amDublin
DUB1:00 pmDublin
32h 55m
1 stop
ORD3:55 pmChicago O'Hare Intl
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
Prices
Airlines
Other information
What is the cheapest month to fly to Ireland?
In general, November is the cheapest month to fly from Chicago O'Hare Intl Airport to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $523. If you aren’t able to travel to Ireland during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $525.
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 Tuesday when prices can be found for as low as $728. This is often the case because there is less demand to fly during this day of the week. Flights from Chicago O'Hare Intl Airport to Ireland on a Friday will generally be more expensive and average around $790. 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 Ireland?
According to our data, the cheapest time of day to fly to Ireland is in the morning. momondo users have found flights departing from Chicago O'Hare Intl Airport to Ireland in the morning for as low as $714. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the evening when prices are around $769.
What is the cheapest Chicago O'Hare Intl to Ireland flight route?
Fly from Chicago O'Hare Intl to Shannon 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 $698 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 $652 on momondo.
What cabin class options are available on Chicago O'Hare Intl to Ireland flights?
There are 3 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
What airlines fly to Ireland?
Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to Ireland from Chicago O'Hare Intl Airport according to our data. Aer Lingus is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 17 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 April 2025, 11 flights take off from Chicago O'Hare Intl Airport and land in Ireland each day. The most common flight departure time for this route is 8:00PM, with 72% of daily flights taking off in the evening.
How many flights depart from Chicago O'Hare Intl Airport to Ireland on average per week?
As of April 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 are updated daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Ireland?
The number of operators available for flights from Chicago O'Hare Intl Airport to Ireland is 17 as of April 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 travel and health documents you'll need for your trip to Ireland 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 license and a passport that is valid for six months after your intended arrival at Ireland. 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 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 $196 | Free Cancellation | Rating 7.4 1,446 reviews | |||
| PriceFrom $341 | Free Cancellation | Rating 7.3 1,349 reviews | |||
| PriceFrom $355 | Free Cancellation | Rating 7.0 487 reviews | |||
| PriceFrom $393 | Free Cancellation | Rating 7.1 1,852 reviews | |||
| PriceFrom $444 | Free Cancellation | Rating 7.0 1,076 reviews | |||
| PriceFrom $482 | Free Cancellation | Rating 7.8 1,334 reviews | |||
| PriceFrom $509 | Free Cancellation | Rating 7.0 2,700 reviews | |||
| PriceFrom $509 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $519 | Free Cancellation | Rating 6.6 6,837 reviews | |||
| PriceFrom $526 | Free Cancellation | Rating 7.6 1,275 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Ireland?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Ireland. Millions of users trust and use momondo every year so you are in good hands.
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?
momondo provides multiple filters to help you find the best flight to Ireland from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Chicago to Ireland right now. Can momondo alert me if prices change?
Price alerts on flights to Ireland from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.
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