Cheap flights from Illinois to Ireland from $236
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Ireland departing on 8/16. 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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1 adult
Economy
0 bags
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Cheap round-trip flights
KAYAK's recommended round-trip deals from the most popular airlines that fly from Illinois to Ireland.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Illinois to Ireland.
Cheap last minute flights
Planning a quick getaway from Illinois 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.
Icelandair flights from Illinois to Ireland
Our best Icelandair deals on Illinois to Ireland flight tickets
Icelandair![Icelandair]()
Aug 9![Icelandair]()
Aug 19
ORD7:25 pmChicago O'Hare Intl
9h 40m
1 stop
DUB11:05 amDublin
DUB2:15 pmDublin
13h 00m
1 stop
ORD9:15 pmChicago O'Hare Intl
Icelandair![Icelandair]()
Aug 8![Icelandair]()
Aug 19
ORD7:25 pmChicago O'Hare Intl
11h 50m
1 stop
DUB1:15 pmDublin
DUB2:15 pmDublin
13h 00m
1 stop
ORD9:15 pmChicago O'Hare Intl
United Airlines flights from Illinois to Ireland
Our best United Airlines deals on Illinois to Ireland flight tickets
United Airlines![United Airlines]()
Aug 17![United Airlines]()
Aug 25
ORD7:00 amChicago O'Hare Intl
18h 45m
2 stops
DUB7:45 amDublin
DUB9:20 amDublin
30h 32m
1 stop
ORD9:52 amChicago O'Hare Intl
United Airlines![United Airlines]()
Aug 6![United Airlines]()
Aug 14
ORD8:15 pmChicago O'Hare Intl
7h 30m
DUB9:45 amDublin
DUB9:20 amDublin
16h 56m
1 stop
ORD8:16 pmChicago O'Hare Intl
See travel insights to Ireland from
How to get the cheapest flight ticket from Illinois 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, February is the cheapest month to fly from Illinois to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $539. If you aren’t able to travel to Ireland during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $551.
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 Illinois 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 Illinois 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 Illinois to Ireland flight route?
Fly from Chicago O'Hare Intl to Dublin for the best Illinois - 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 Illinois when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $699 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Illinois for as low as $632 on momondo.
What cabin class options are available on Illinois to Ireland flights?
There are 3 cabin classes available to choose from on Illinois 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 Illinois to Ireland?
TAP AIR PORTUGAL, Icelandair, and Air Canada are the most popular carriers operating from Illinois 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 Illinois 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 16 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 Illinois to Ireland on average per day?
As of April 2025, 11 flights take off from Illinois 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 Illinois to Ireland on average per week?
As of April 2025, 77 flights take off from Illinois and land in Ireland each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
Cheap Illinois to Ireland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Ireland
When did momondo last update prices for flights from Illinois to Ireland?
Prices for flights from Illinois to Ireland were last updated today.
How many operators does momondo search for flights from Illinois to Ireland?
As of April 2025, there are 16 operators available to choose from for flights from Illinois to Ireland.
How old do you have to be to fly from Illinois 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 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 Illinois to Ireland.
What documentation or ID do you need to fly to Ireland?
The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Illinois to Ireland?
Based on momondo bookings for flights between Illinois and Ireland, the leading plane model is Boeing 787-8 Dreamliner, making up 41.56% of the total bookings. Other popular models include Boeing 787 Dreamliner with 15.72%, Airbus A330 with 12.85%, and Boeing 787-10 Dreamliner with 6.98%.
Best airlines flying from Illinois to Ireland
Compare and see reviews for airlines that fly from Illinois to Ireland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $196 | Free Cancellation | Rating 7.5 1,435 reviews | |||
| PriceFrom $341 | Free Cancellation | Rating 7.3 1,335 reviews | |||
| PriceFrom $355 | Free Cancellation | Rating 7.0 482 reviews | |||
| PriceFrom $393 | Free Cancellation | Rating 7.1 1,837 reviews | |||
| PriceFrom $445 | Free Cancellation | Rating 7.0 1,063 reviews | |||
| PriceFrom $482 | Free Cancellation | Rating 7.8 1,329 reviews | |||
| PriceFrom $509 | Free Cancellation | Rating 7.0 2,676 reviews | |||
| PriceFrom $509 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $513 | Free Cancellation | Rating 7.4 8,667 reviews | |||
| PriceFrom $519 | Free Cancellation | Rating 6.6 6,767 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois to Ireland?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Ireland for you.
Can I find flights from Illinois to Ireland with flexible booking policies on momondo?
All flight searches from Illinois to Ireland on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Illinois to Ireland?
Once all potential Illinois 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 Illinois to Ireland right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Illinois to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
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