Cheap flights from Ireland to Chicago from £249
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Chicago departing on 29/5. 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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Delta flights from Ireland to Chicago O'Hare Intl Airport
Our best Delta deals on Ireland to Chicago O'Hare Intl Airport flight tickets
Aer Lingus flights from Ireland to Chicago O'Hare Intl Airport
Our best Aer Lingus deals on Ireland to Chicago O'Hare Intl Airport flight tickets
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How to get the cheapest flight ticket from Ireland 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?
The cheapest month to fly to Chicago O'Hare Intl Airport from Ireland is in February. Flight prices, which tend to average around £376, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Chicago O'Hare Intl Airport from Ireland during November instead. Flights to Chicago O'Hare Intl Airport in November, while not as cheap as those in February, still average around £383.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
The cheapest day to depart from Ireland to Chicago O'Hare Intl Airport is on a Tuesday. Travellers who choose to depart for Chicago O'Hare Intl Airport on a Tuesday will often find tickets for as low as £522. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Chicago O'Hare Intl Airport on Sunday is £635.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
The cheapest time of day to fly to Chicago O'Hare Intl Airport is in the evening when flights can be purchased for as low as £501. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is at midday when prices are around £593.
What is the cheapest Ireland to Chicago O'Hare Intl flight route?
Fly from Dublin to Chicago O'Hare Intl for the best Ireland - 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 Ireland when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around £446 when searching 19 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 Ireland for as low as £372 on momondo.
What cabin class options are available on Ireland to Chicago O'Hare Intl flights?
There are 3 cabin classes available to choose from on Ireland 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.
What is the cheapest airline that flies from Ireland to Chicago O'Hare Intl?
Icelandair, TAP AIR PORTUGAL, and Scandinavian Airlines are the most popular carriers operating from Ireland to Chicago O'Hare Intl
Which airlines fly to Chicago O'Hare Intl Airport?
Aer Lingus, British Airways and Finnair are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Ireland according to our data. Aer Lingus is the first choice among our users, with 72% of people opting to fly with this airline when travelling to Chicago O'Hare Intl Airport. Keep in mind that there are 8 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 Ireland to Chicago O'Hare Intl Airport on average per day?
The number of flights available between Ireland and Chicago O'Hare Intl Airport is 10 per day as of May 2025. The most frequent departure time is 11:00, with 74% of daily flights leaving at midday.
How many flights depart from Ireland to Chicago O'Hare Intl Airport on average per week?
As of May 2025, 73 flights take off from Ireland and land in Chicago O'Hare Intl Airport each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.
Cheap Ireland to Chicago O'Hare Intl Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to Chicago O'Hare Intl Airport
When did momondo last update prices for flights from Ireland to Chicago O'Hare Intl Airport?
Prices for flights from Ireland to Chicago O'Hare Intl Airport are updated daily.
How many operators does momondo search for flights from Ireland to Chicago O'Hare Intl Airport?
As of May 2025, there are 8 operators available to choose from for flights from Ireland to Chicago O'Hare Intl Airport.
How old do you have to be to fly from Ireland to Chicago O'Hare Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The required travel and health documents for your Chicago O'Hare Intl 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 Chicago O'Hare Intl 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 Ireland to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Ireland to Chicago O'Hare Intl Airport is Boeing 787-8 Dreamliner, representing 32.50% of all bookings. The subsequent popular models are Airbus A330-300 at 23.75%, Boeing 787 Dreamliner at 22.96%, and Airbus A330 at 8.53%.
Best airlines flying from Ireland to Chicago O'Hare Intl Airport
Compare and see reviews for airlines that fly from Ireland to Chicago O'Hare Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £259 | Free Cancellation | Rating 7.0 487 reviews | |||
| PriceFrom £290 | Free Cancellation | Rating 6.6 6,842 reviews | |||
| PriceFrom £293 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom £303 | Free Cancellation | Rating 7.8 1,334 reviews | |||
| PriceFrom £309 | Free Cancellation | Rating 7.0 1,076 reviews | |||
| PriceFrom £368 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom £370 | Free Cancellation | Rating 7.6 1,275 reviews | |||
| PriceFrom £378 | Free Cancellation | Rating 7.0 2,701 reviews |
Travelling to a place near Chicago?
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Why should I use momondo to find a flight deal from Ireland to Chicago?
Finding the right flight to Chicago from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.
Can I find flights from Ireland to Chicago with flexible booking policies on momondo?
momondo does allow users to show only those flights to Chicago from Ireland which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Ireland to Chicago?
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 Ireland to Chicago.
I’m not ready to book a flight from Ireland to Chicago right now. Can momondo alert me if prices change?
Price alerts on flights to Chicago from Ireland 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.