What is the cheapest airline that flies from Illinois to Ireland?

British Airways, United Airlines, and Lufthansa are the most popular carriers operating from Illinois to Ireland

How many flights depart from Illinois to Ireland on average per day?

As of February 2026, 8 flights take off from Illinois and land in Ireland each day. The most common flight departure time for this route is 6:00PM, with 100% of daily flights taking off in the evening.

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 54% 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 week?

As of February 2026, 56 flights take off from Illinois and land in Ireland each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

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 February 2026, there are 17 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.

$197 Cheap Flights from Illinois to Ireland in 2026

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Find the cheapest flights from Illinois to Ireland

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:25 pm - 1:15 pm

ORD

DUB

11h 50m

1 stop

2:15 pm - 6:15 pm

DUB

ORD

10h 00m

1 stop

$423Icelandair

Wed, Apr 22 - Thu, Apr 30

7:25 pm - 1:15 pm

ORD

DUB

11h 50m

1 stop

12:15 pm - 6:15 pm

DUB

ORD

12h 00m

1 stop

$424Icelandair

Wed, Apr 15 - Wed, Apr 29

10:50 pm - 5:10 pm

ORD

DUB

13h 20m

1 stop

5:00 am - 2:25 pm

DUB

ORD

14h 25m

1 stop

$429Lufthansa

Tue, Mar 10 - Thu, Mar 19

10:50 pm - 5:10 pm

ORD

DUB

13h 20m

1 stop

5:10 am - 2:25 pm

DUB

ORD

14h 15m

1 stop

$431Lufthansa

Tue, Mar 10 - Wed, Mar 18

7:15 pm - 10:55 am

ORD

DUB

33h 40m

2 stops

11:40 am - 4:10 pm

DUB

ORD

58h 30m

2 stops

$434Scandinavian Airlines

Sat, Apr 18 - Wed, Apr 22

7:20 pm - 6:20 pm

ORD

DUB

17h 00m

1 stop

11:30 am - 4:45 pm

DUB

ORD

35h 15m

2 stops

$437Scandinavian Airlines

Wed, Feb 25 - Wed, Mar 4

4:05 pm - 8:15 am

STL

DUB

10h 10m

1 stop

5:55 am - 1:25 pm

DUB

STL

13h 30m

1 stop

$457Multiple Airlines

Tue, Apr 14 - Wed, Apr 22

6:35 am - 8:10 am

PIA

DUB

19h 35m

1 stop

9:00 am - 12:43 pm

DUB

PIA

33h 43m

2 stops

$458United Airlines

Wed, Feb 25 - Sun, Mar 1

7:41 am - 8:10 am

STL

DUB

18h 29m

1 stop

9:00 am - 8:23 pm

DUB

STL

41h 23m

2 stops

$458United Airlines

Fri, Feb 20 - Fri, Feb 27

5:10 pm - 2:40 pm

ORD

ORK

15h 30m

1 stop

10:50 am - 9:29 pm

ORK

ORD

16h 39m

2 stops

$487Multiple Airlines

Mon, Apr 27 - Wed, May 6

Icelandair flights from Illinois to Ireland

Our best Icelandair deals on Illinois to Ireland flight tickets

Icelandair

Apr 22

ORD7:25 pmChicago O'Hare Intl

11h 50m

1 stop

DUB1:15 pmDublin

Apr 30

DUB2:15 pmDublin

10h 00m

1 stop

ORD6:15 pmChicago O'Hare Intl

$423

Icelandair

Apr 15

ORD7:25 pmChicago O'Hare Intl

11h 50m

1 stop

DUB1:15 pmDublin

Apr 29

DUB12:15 pmDublin

12h 00m

1 stop

ORD6:15 pmChicago O'Hare Intl

$424

Icelandair

Mar 2

ORD6:30 pmChicago O'Hare Intl

9h 45m

1 stop

DUB10:15 amDublin

Mar 17

DUB11:30 amDublin

11h 50m

1 stop

ORD6:20 pmChicago O'Hare Intl

$428

United Airlines flights from Illinois to Ireland

Our best United Airlines deals on Illinois to Ireland flight tickets

United Airlines

Feb 25

PIA6:35 amGreater Peoria

19h 35m

1 stop

DUB8:10 amDublin

Mar 1

DUB9:00 amDublin

33h 43m

2 stops

PIA12:43 pmGreater Peoria

$458

United Airlines

Feb 26

STL8:30 amLambert-St Louis

19h 50m

1 stop

DUB10:20 amDublin

Mar 2

DUB9:00 amDublin

43h 14m

2 stops

STL10:14 pmLambert-St Louis

$460

United Airlines

Feb 25

PIA10:46 amGreater Peoria

17h 34m

2 stops

DUB10:20 amDublin

Mar 1

DUB9:00 amDublin

33h 43m

2 stops

PIA12:43 pmGreater Peoria

$463

Fly from

Fly to

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 4/22

7:25 pm-1:15 pm

1 stop11h 50m

Dublin

Thu 4/30

2:15 pm-6:15 pm

1 stop10h 00m

$423

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 4/15

7:25 pm-1:15 pm

1 stop11h 50m

Dublin

Wed 4/29

12:15 pm-6:15 pm

1 stop12h 00m

$424

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 3/10

10:50 pm-5:10 pm

1 stop13h 20m

Dublin

Thu 3/19

5:00 am-2:25 pm

1 stop14h 25m

$429

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 3/10

10:50 pm-5:10 pm

1 stop13h 20m

Dublin

Wed 3/18

5:10 am-2:25 pm

1 stop14h 15m

$431

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 4/18

7:15 pm-10:55 am

2 stops33h 40m

Dublin

Wed 4/22

11:40 am-4:10 pm

2 stops58h 30m

$434

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 2/25

7:20 pm-6:20 pm

1 stop17h 00m

Dublin

Wed 3/4

11:30 am-4:45 pm

2 stops35h 15m

$437

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/14

4:05 pm-8:15 am

1 stop10h 10m

Dublin

Wed 4/22

5:55 am-1:25 pm

1 stop13h 30m

$457

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Wed 2/25

6:35 am-8:10 am

1 stop19h 35m

Dublin

Sun 3/1

9:00 am-12:43 pm

2 stops33h 43m

$458

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 2/20

7:41 am-8:10 am

1 stop18h 29m

Dublin

Fri 2/27

9:00 am-8:23 pm

2 stops41h 23m

$458

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Mon 4/27

5:10 pm-2:40 pm

1 stop15h 30m

Cork

Wed 5/6

10:50 am-9:29 pm

2 stops16h 39m

$487

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 $543. If you aren’t able to travel to Ireland during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $564.

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 Monday when prices can be found for as low as $734. 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 $831. 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 evening. momondo users have found flights departing from Illinois to Ireland in the evening for as low as $751. 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 afternoon when prices are around $798.

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 weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $683 when searching 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 $642 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.

Can stopping save me money on Illinois to Ireland flights?

No. A direct flight is the cheapest option for a flight between Illinois to Ireland.

Cheap Illinois to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Ireland

Best Price Found	$378
Fastest flight time	7h 15m
Direct flights	Every day
Airports in Ireland	77 airports

The best one-way flight to Ireland from Illinois in the past 72 hours is $378. The best round-trip flight deal from Illinois to Ireland found on momondo in the last 72 hours is $524.

The fastest flight from Illinois to Ireland takes 7h 15m

Direct flights go from Illinois to Ireland every day.

There are 77 airports in Ireland. From Illinois there are direct flights to Dublin (DUB), Shannon (SNN).

Search flight deals

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 February 2026, there are 17 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 Airbus A330-300, making up 26.56% of the total bookings. Other popular models include Boeing 787 Dreamliner with 17.83%, Boeing 767-300 with 16.19%, and Boeing 787-8 Dreamliner with 15.95%.

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
JetBlue	PriceFrom $51	Free Cancellation	Rating 7.2 2,893 reviews	Search JetBlue flights
Icelandair	PriceFrom $344	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $400	Free Cancellation	Rating 7.3 1,677 reviews	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	PriceFrom $410	Free Cancellation	Rating 7.1 2,133 reviews	Search TAP AIR PORTUGAL flights
British Airways	PriceFrom $425	Free Cancellation	Rating 6.7 7,714 reviews	Search British Airways flights
Iberia	PriceFrom $457	Free Cancellation	Rating 7.0 3,103 reviews	Search Iberia flights
Aer Lingus	PriceFrom $468	Free Cancellation	Rating 7.2 1,444 reviews	Search Aer Lingus flights
American Airlines	PriceFrom $469	Free Cancellation	Rating 7.2 11,217 reviews	Search American Airlines flights
SWISS	PriceFrom $473	Free Cancellation	Rating 7.6 1,864 reviews	Search SWISS flights
Lufthansa	PriceFrom $476	Free Cancellation	Rating 6.8 7,759 reviews	Search Lufthansa flights

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.

An easier way to manage your Ireland trip

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Complete your trip

Feeling lucky

Popular cities in Ireland

Flights to Dublinfrom $292

Flights to Shannon, Clarefrom $354

Flights to Corkfrom $400

Flights to Milltown (Kerry)from $428

Flights to Knockfrom $611

Flights to Donegalfrom $729

Cheap flights from Illinois to Ireland from $197

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 2/16. 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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Find the cheapest flights from Illinois to Ireland

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Icelandair flights from Illinois to Ireland

Our best Icelandair deals on Illinois to Ireland flight tickets

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Our best United Airlines deals on Illinois to Ireland flight tickets

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Use the filters below to find and compare flights from Illinois to Ireland that are best for you.

See travel insights to Ireland from

How to get the cheapest flight ticket from Illinois to Ireland

What is the cheapest month to fly to Ireland?

What is the cheapest day to depart on your flight to Ireland?

What is the cheapest time of day to depart on your flight to Ireland?

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?

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.

Can stopping save me money on Illinois to Ireland flights?

No. A direct flight is the cheapest option for a flight between Illinois to Ireland.

What is the cheapest airline that flies from Illinois to Ireland?

British Airways, United Airlines, and Lufthansa are the most popular carriers operating from Illinois to Ireland

What airlines fly to Ireland?

How many flights depart from Illinois to Ireland on average per day?

As of February 2026, 8 flights take off from Illinois and land in Ireland each day. The most common flight departure time for this route is 6:00PM, with 100% of daily flights taking off in the evening.

How many flights depart from Illinois to Ireland on average per week?

As of February 2026, 56 flights take off from Illinois and land in Ireland each week. The most common flight departure day for this route is Mon, with 18% 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

Best Price Found

Fastest flight time

Direct flights

Airports in Ireland

When did momondo last update prices for flights from Illinois to Ireland?

How many operators does momondo search for flights from Illinois to Ireland?

How old do you have to be to fly from Illinois to Ireland?

What documentation or ID do you need to fly to Ireland?

What is the most popular plane model from Illinois to Ireland?

Best airlines flying from Illinois to Ireland

Compare and see reviews for airlines that fly from Illinois to Ireland with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Ireland?

Can I find flights from Illinois to Ireland with flexible booking policies on momondo?

How can momondo help me find flights from Illinois to Ireland?

I’m not ready to book a flight from Illinois to Ireland right now. Can momondo alert me if prices change?

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo

Illinois flight routes

According to popular flight searches on momondo this year

Ireland flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Ireland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Ireland

List of cabin classes available on flights landing in Ireland. Availability may vary depending on flight origin and airline.

Complete your trip to Ireland

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According to popular flight searches on momondo this year